forked from cf-convention/cf-convention.github.io
-
Notifications
You must be signed in to change notification settings - Fork 0
/
cf-standard-name-table.html
9353 lines (9326 loc) · 760 KB
/
cf-standard-name-table.html
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
<html>
<title>CF Standard Names</title>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>
cf-standard-name-table.html
</title>
<h1 class="documentFirstHeading">CF Standard Name Table</h1>
<div class="documentByLine"><div class="reviewHistory"></div></div>
<div class="plain"><script>
function applyFilter(filter_text)
{
// applying a filter hides all standard names not matching filter_text
// if filter_text contains no spaces, it is treated as a regexp
// otherwise, all substrings must occur somewhere
var is_match = false;
var search_type = 'regexp';
var search_help_text = false;
var num_matches = 0;
var is_boolean_and = true;
search_help_text = (document.getElementById('search_help_text').checked);
is_boolean_and = (document.getElementById('logical_operator_and').checked);
if (filter_text.indexOf(' ') == -1)
{
search_type = 'regexp';
var re = new RegExp(filter_text, 'i')
}
else
{
search_type = 'string';
var string_parts = filter_text.split(' ');
}
curTable = document.getElementById('standard_name_table');
allTRs = curTable.getElementsByTagName('tr');
for (var i = 0; i < allTRs.length; i++)
{
curTR = allTRs[i];
if (curTR.id != '')
{
if (search_type == 'regexp')
{
is_match = curTR.id.substring(0, curTR.id.length - 3).match(re);
if (search_help_text)
{
var helpText = document.getElementById(curTR.id.substring(0,curTR.id.length - 3) + '_help').innerHTML;
is_match = is_match || helpText.match(re);
}
}
else
{
if (is_boolean_and)
{
var is_name_match = true;
for (var j = 0; j < string_parts.length && is_name_match; j++)
{
if (!curTR.id.match(new RegExp(string_parts[j], 'i')))
{
is_name_match = false;
}
}
}
else
{
var is_name_match = false;
for (var j = 0; j < string_parts.length && !is_name_match; j++)
{
if (curTR.id.substring(0, curTR.id.length - 3).match(new RegExp(string_parts[j], 'i')))
{
is_name_match = true;
}
}
}
is_match = is_name_match;
if (search_help_text)
{
var helpText = document.getElementById(curTR.id.substring(0,curTR.id.length - 3) + '_help').innerHTML;
if (is_boolean_and)
{
var is_help_match = true;
for (var j = 0; j < string_parts.length && is_help_match; j++)
{
if (!helpText.match(new RegExp(string_parts[j], 'i')))
{
is_help_match = false;
}
}
}
else
{
var is_help_match = false;
for (var j = 0; j < string_parts.length && !is_help_match; j++)
{
if (helpText.match(new RegExp(string_parts[j], 'i')))
{
is_help_match = true;
}
}
}
is_match = is_match || is_help_match;
}
}
if (!is_match)
{
curTR.style.display = 'none';
}
else
{
num_matches++;
curTR.style.display = '';
if (search_help_text)
{
showHelp(curTR.id.substring(0,curTR.id.length - 3));
}
else
{
hideHelp(curTR.id.substring(0,curTR.id.length - 3));
}
}
}
}
var filter_matches = document.getElementById('filter_matches');
var filter_matches_num = document.getElementById('filter_matches_num');
var filter_matches_query = document.getElementById('filter_matches_query');
if (filter_text != '')
{
filter_matches.style.visibility = 'visible';
filter_matches_num.innerHTML = num_matches;
filter_matches_query.innerHTML = filter_text;
}
else
{
filter_matches.style.visibility = 'hidden';
}
}
function clearFilter()
{
curTable = document.getElementById('standard_name_table');
allTRs = curTable.getElementsByTagName('tr');
for (var i = 0; i < allTRs.length; i++)
{
curTR = allTRs[i];
curTR.style.display = '';
}
var filter_matches = document.getElementById('filter_matches');
filter_matches.style.visibility = 'hidden';
document.getElementById('filter_text').value = '';
}
function toggleHelp(standard_name)
{
// check for the existence of the help tr object for this standard_name
var helpDiv = document.getElementById(standard_name + '_help');
if (helpDiv)
{
if (helpDiv.style.display != 'none')
{
helpDiv.style.display = 'none';
curArrow = document.getElementById(standard_name + '_arrow');
curArrow.src = '../build/media/images/arrow_right.gif';
}
else
{
helpDiv.style.display = '';
curArrow = document.getElementById(standard_name + '_arrow');
curArrow.src = '../build/media/images/arrow_down.gif';
}
}
}
function showHelp(standard_name)
{
var helpDiv = document.getElementById(standard_name + '_help');
if (helpDiv)
{
helpDiv.style.display = '';
curArrow = document.getElementById(standard_name + '_arrow');
curArrow.src = '../build/media/images/arrow_down.gif';
}
}
function hideHelp(standard_name)
{
var helpDiv = document.getElementById(standard_name + '_help');
if (helpDiv)
{
helpDiv.style.display = 'none';
curArrow = document.getElementById(standard_name + '_arrow');
curArrow.src = '../build/media/images/arrow_right.gif';
}
}
</script></div>
</head>
<body>
<b>Version 4,
<newdate>09 March 2007</newdate></b><br><br>
Refer to the <span class="link-external"><a href="http://cfconventions.org/Data/cf-standard-names/docs/guidelines.html">Guidelines for Construction of CF Standard Names</a></span> for information on how the names are constructed and interpreted, and how new names could be derived.
<br><br><b>A note about units</b><br>
The canonical units associated with each standard name are usually the SI units for the quantity. <span class="link-external"><a href="http://cfconventions.org/cf-conventions/cf-conventions.html#standard-name">Section 3.3 of the CF conventions</a></span> states: "Unless it is dimensionless, a variable with a standard_name attribute must have units which are physically equivalent (not necessarily identical) to the canonical units, possibly modified by an operation specified by either the standard name modifier ... or by the cell_methods attribute." Furthermore, <span class="link-external"><a href="http://cfconventions.org/cf-conventions/cf-conventions.html#_overview"> Section 1.3 of the CF conventions</a></span> states: "The values of the units attributes are character strings that are recognized by UNIDATA's Udunits package [UDUNITS], (with exceptions allowed as discussed in Section 3.1, “Units”)." For example, a variable with the standard name of "air_temperature" may have a units attribute of "degree_Celsius" because Celsius can be converted to Kelvin by Udunits. For the full range of supported units, refer to the <a href="https://www.unidata.ucar.edu/software/udunits/udunits-current/doc/udunits/udunits2.html#Database"> Udunits documentation</a>. Refer to the <a href="http://cfconventions.org/cf-conventions/cf-conventions.html"> CF conventions</a> for full details of the units attribute.<br><br><div style="border: 1px solid rgb(153, 153, 153); background-color: rgb(204, 204, 204); padding-top: 10px; padding-left: 10px; padding-bottom: 10px; margin-bottom: 10px;">
<h2>Search</h2>
<form id="filter_form" name="filter_form" style="margin: 0px; padding: 0px;" action="javascript:void(0);"><table border="0" cellpadding="2" cellspacing="1"><tbody><tr><td valign="top">
<input id="filter_text" name="filter_text" size="40" onkeydown="if (event.keyCode==13) applyFilter(document.getElementById('filter_text').value);" type="text">
<input value="Search Standard Names" id="btn_search" onclick="applyFilter(document.getElementById('filter_text').value);" type="button">
<input value="Show All Standard Names" id="btn_show_all" onclick="clearFilter();return false;" type="button"><br><label><input type="radio" name="logical_operator" id="logical_operator_and" value="AND" checked> AND</label><label><input type="radio" name="logical_operator" id="logical_operator_or" value="OR"> OR</label> (separate search terms with spaces)
<br><label><input id="search_help_text" name="search_help_text" type="checkbox"> Also search help text</label>
</td></tr></tbody></table></form>
<div id="filter_matches" style="visibility: hidden; margin-bottom: 10px;">
Found <span id="filter_matches_num"></span> standard names matching query: <span id="filter_matches_query"></span>
</div>
<h2>View by Category</h2>
<table cellpadding="4" cellspacing="0" border="1">
<tr>
<td><a href="javascript:void(0)" onclick="document.getElementById('filter_text').value='aerosol dry.*deposition wet.*deposition production emission mole'; document.getElementById('logical_operator_or').click(); document.getElementById('btn_search').onclick();">Atmospheric Chemistry</a></td>
<td><a href="javascript:void(0)" onclick="document.getElementById('filter_text').value='air_pressure atmosphere.*vorticity atmosphere.*streamfunction wind momentum.*in_air gravity_wave ertel geopotential omega atmosphere.*dissipation atmosphere.*energy atmosphere.*drag atmosphere.*stress surface.*stress'; document.getElementById('logical_operator_or').click(); document.getElementById('btn_search').onclick();">Atmosphere Dynamics</a></td>
<td><a href="javascript:void(0)" onclick="document.getElementById('filter_text').value='carbon leaf vegetation'; document.getElementById('logical_operator_or').click(); document.getElementById('btn_search').onclick();">Carbon Cycle</a></td>
<td><a href="javascript:void(0)" onclick="document.getElementById('filter_text').value='cloud'; document.getElementById('logical_operator_or').click(); document.getElementById('btn_search').onclick();">Cloud</a></td>
<td><a href="javascript:void(0)" onclick="document.getElementById('filter_text').value='atmosphere_water canopy_water precipitation rain snow moisture freshwater runoff root humidity transpiration evaporation water_vapour river'; document.getElementById('logical_operator_or').click(); document.getElementById('btn_search').onclick();">Hydrology</a></td>
</tr>
<tr>
<td><a href="javascript:void(0)" onclick="document.getElementById('filter_text').value='ocean.*streamfunction sea_water_velocity ocean.*vorticity'; document.getElementById('logical_operator_or').click(); document.getElementById('btn_search').onclick();">Ocean Dynamics</a></td>
<td><a href="javascript:void(0)" onclick="document.getElementById('filter_text').value='radiative longwave shortwave brightness radiance albedo'; document.getElementById('logical_operator_or').click(); document.getElementById('btn_search').onclick();">Radiation</a></td>
<td><a href="javascript:void(0)" onclick="document.getElementById('filter_text').value='sea_ice'; document.getElementById('logical_operator_or').click(); document.getElementById('btn_search').onclick();">Sea Ice</a></td>
<td><a href="javascript:void(0)" onclick="document.getElementById('filter_text').value='surface'; document.getElementById('logical_operator_or').click(); document.getElementById('btn_search').onclick();">Surface</a></td>
</tr>
</table>
</div>
<table id="standard_name_table" border="1" width="100%" cellpadding="2" cellspacing="0">
<th width="76%">Standard Name</th>
<th width="8%">Canonical Units</th>
<th width="8%">AMIP</th>
<th width="8%">GRIB</th>
<tr id="aerosol_angstrom_exponent_tr">
<td>
<a name="aerosol_angstrom_exponent"></a><img id="aerosol_angstrom_exponent_arrow" src="../build/media/images/arrow_right.gif"><code class="varname"><a href="javascript:void(0)" onclick="toggleHelp('aerosol_angstrom_exponent')">aerosol_angstrom_exponent</a></code><div id="aerosol_angstrom_exponent_help" style="display: none; padding-left: 16px; margin-top: 4px; border-top: 1px dashed #cccccc;">"Aerosol" means the suspended liquid or solid particles in air (except cloud droplets).</div>
</td>
<td>1</td>
<td>
</td>
<td>
</td>
</tr>
<tr id="air_density_tr">
<td>
<a name="air_density"></a><img id="air_density_arrow" src="../build/media/images/arrow_right.gif"><code class="varname"><a href="javascript:void(0)" onclick="toggleHelp('air_density')">air_density</a></code><div id="air_density_help" style="display: none; padding-left: 16px; margin-top: 4px; border-top: 1px dashed #cccccc;">
No help available.
</div>
</td>
<td>kg m-3</td>
<td>
</td>
<td>
</td>
</tr>
<tr id="air_potential_temperature_tr">
<td>
<a name="air_potential_temperature"></a><img id="air_potential_temperature_arrow" src="../build/media/images/arrow_right.gif"><code class="varname"><a href="javascript:void(0)" onclick="toggleHelp('air_potential_temperature')">air_potential_temperature</a></code><div id="air_potential_temperature_help" style="display: none; padding-left: 16px; margin-top: 4px; border-top: 1px dashed #cccccc;">Potential temperature is the temperature a parcel of air or sea water would have if moved adiabatically to sea level pressure.</div>
</td>
<td>K</td>
<td>theta</td>
<td>13</td>
</tr>
<tr id="air_pressure_tr">
<td>
<a name="air_pressure"></a><img id="air_pressure_arrow" src="../build/media/images/arrow_right.gif"><code class="varname"><a href="javascript:void(0)" onclick="toggleHelp('air_pressure')">air_pressure</a></code><div id="air_pressure_help" style="display: none; padding-left: 16px; margin-top: 4px; border-top: 1px dashed #cccccc;">
No help available.
</div>
</td>
<td>Pa</td>
<td>plev</td>
<td>1</td>
</tr>
<tr id="air_pressure_anomaly_tr">
<td>
<a name="air_pressure_anomaly"></a><img id="air_pressure_anomaly_arrow" src="../build/media/images/arrow_right.gif"><code class="varname"><a href="javascript:void(0)" onclick="toggleHelp('air_pressure_anomaly')">air_pressure_anomaly</a></code><div id="air_pressure_anomaly_help" style="display: none; padding-left: 16px; margin-top: 4px; border-top: 1px dashed #cccccc;">"anomaly" means difference from climatology.</div>
</td>
<td>Pa</td>
<td>
</td>
<td>26</td>
</tr>
<tr id="air_pressure_at_cloud_base_tr">
<td>
<a name="air_pressure_at_cloud_base"></a><img id="air_pressure_at_cloud_base_arrow" src="../build/media/images/arrow_right.gif"><code class="varname"><a href="javascript:void(0)" onclick="toggleHelp('air_pressure_at_cloud_base')">air_pressure_at_cloud_base</a></code><div id="air_pressure_at_cloud_base_help" style="display: none; padding-left: 16px; margin-top: 4px; border-top: 1px dashed #cccccc;">cloud_base refers to the base of the lowest cloud.</div>
</td>
<td>Pa</td>
<td>
</td>
<td>
</td>
</tr>
<tr id="air_pressure_at_cloud_top_tr">
<td>
<a name="air_pressure_at_cloud_top"></a><img id="air_pressure_at_cloud_top_arrow" src="../build/media/images/arrow_right.gif"><code class="varname"><a href="javascript:void(0)" onclick="toggleHelp('air_pressure_at_cloud_top')">air_pressure_at_cloud_top</a></code><div id="air_pressure_at_cloud_top_help" style="display: none; padding-left: 16px; margin-top: 4px; border-top: 1px dashed #cccccc;">cloud_top refers to the top of the highest cloud.</div>
</td>
<td>Pa</td>
<td>
</td>
<td>
</td>
</tr>
<tr id="air_pressure_at_convective_cloud_base_tr">
<td>
<a name="air_pressure_at_convective_cloud_base"></a><img id="air_pressure_at_convective_cloud_base_arrow" src="../build/media/images/arrow_right.gif"><code class="varname"><a href="javascript:void(0)" onclick="toggleHelp('air_pressure_at_convective_cloud_base')">air_pressure_at_convective_cloud_base</a></code><div id="air_pressure_at_convective_cloud_base_help" style="display: none; padding-left: 16px; margin-top: 4px; border-top: 1px dashed #cccccc;">cloud_base refers to the base of the lowest cloud. Convective cloud is that produced by the convection schemes in an atmosphere model.</div>
</td>
<td>Pa</td>
<td>
</td>
<td>
</td>
</tr>
<tr id="air_pressure_at_convective_cloud_top_tr">
<td>
<a name="air_pressure_at_convective_cloud_top"></a><img id="air_pressure_at_convective_cloud_top_arrow" src="../build/media/images/arrow_right.gif"><code class="varname"><a href="javascript:void(0)" onclick="toggleHelp('air_pressure_at_convective_cloud_top')">air_pressure_at_convective_cloud_top</a></code><div id="air_pressure_at_convective_cloud_top_help" style="display: none; padding-left: 16px; margin-top: 4px; border-top: 1px dashed #cccccc;">cloud_top refers to the top of the highest cloud. Convective cloud is that produced by the convection schemes in an atmosphere model.</div>
</td>
<td>Pa</td>
<td>
</td>
<td>
</td>
</tr>
<tr id="air_pressure_at_freezing_level_tr">
<td>
<a name="air_pressure_at_freezing_level"></a><img id="air_pressure_at_freezing_level_arrow" src="../build/media/images/arrow_right.gif"><code class="varname"><a href="javascript:void(0)" onclick="toggleHelp('air_pressure_at_freezing_level')">air_pressure_at_freezing_level</a></code><div id="air_pressure_at_freezing_level_help" style="display: none; padding-left: 16px; margin-top: 4px; border-top: 1px dashed #cccccc;">
No help available.
</div>
</td>
<td>Pa</td>
<td>
</td>
<td>
</td>
</tr>
<tr id="air_pressure_at_sea_level_tr">
<td>
<a name="air_pressure_at_sea_level"></a><img id="air_pressure_at_sea_level_arrow" src="../build/media/images/arrow_right.gif"><code class="varname"><a href="javascript:void(0)" onclick="toggleHelp('air_pressure_at_sea_level')">air_pressure_at_sea_level</a></code><div id="air_pressure_at_sea_level_help" style="display: none; padding-left: 16px; margin-top: 4px; border-top: 1px dashed #cccccc;">sea_level means mean sea level, which is close to the geoid in sea areas. Air pressure at sea level is the quantity often abbreviated as MSLP or PMSL.</div>
</td>
<td>Pa</td>
<td>psl</td>
<td>2 E151</td>
</tr>
<tr id="air_temperature_tr">
<td>
<a name="air_temperature"></a><img id="air_temperature_arrow" src="../build/media/images/arrow_right.gif"><code class="varname"><a href="javascript:void(0)" onclick="toggleHelp('air_temperature')">air_temperature</a></code><div id="air_temperature_help" style="display: none; padding-left: 16px; margin-top: 4px; border-top: 1px dashed #cccccc;">Air temperature is the bulk temperature of the air, not the surface (skin) temperature.</div>
</td>
<td>K</td>
<td>ta</td>
<td>11 E130</td>
</tr>
<tr id="air_temperature_anomaly_tr">
<td>
<a name="air_temperature_anomaly"></a><img id="air_temperature_anomaly_arrow" src="../build/media/images/arrow_right.gif"><code class="varname"><a href="javascript:void(0)" onclick="toggleHelp('air_temperature_anomaly')">air_temperature_anomaly</a></code><div id="air_temperature_anomaly_help" style="display: none; padding-left: 16px; margin-top: 4px; border-top: 1px dashed #cccccc;">"anomaly" means difference from climatology. Air temperature is the bulk temperature of the air, not the surface (skin) temperature.</div>
</td>
<td>K</td>
<td>
</td>
<td>25</td>
</tr>
<tr id="air_temperature_at_cloud_top_tr">
<td>
<a name="air_temperature_at_cloud_top"></a><img id="air_temperature_at_cloud_top_arrow" src="../build/media/images/arrow_right.gif"><code class="varname"><a href="javascript:void(0)" onclick="toggleHelp('air_temperature_at_cloud_top')">air_temperature_at_cloud_top</a></code><div id="air_temperature_at_cloud_top_help" style="display: none; padding-left: 16px; margin-top: 4px; border-top: 1px dashed #cccccc;">cloud_top refers to the top of the highest cloud. Air temperature is the bulk temperature of the air, not the surface (skin) temperature.</div>
</td>
<td>K</td>
<td>
</td>
<td>
</td>
</tr>
<tr id="air_temperature_lapse_rate_tr">
<td>
<a name="air_temperature_lapse_rate"></a><img id="air_temperature_lapse_rate_arrow" src="../build/media/images/arrow_right.gif"><code class="varname"><a href="javascript:void(0)" onclick="toggleHelp('air_temperature_lapse_rate')">air_temperature_lapse_rate</a></code><div id="air_temperature_lapse_rate_help" style="display: none; padding-left: 16px; margin-top: 4px; border-top: 1px dashed #cccccc;">Air temperature is the bulk temperature of the air, not the surface (skin) temperature. A lapse rate is the negative derivative of a quantity with respect to increasing height above the surface, or the (positive) derivative with respect to increasing depth.</div>
</td>
<td>K m-1</td>
<td>
</td>
<td>19</td>
</tr>
<tr id="air_temperature_threshold_tr">
<td>
<a name="air_temperature_threshold"></a><img id="air_temperature_threshold_arrow" src="../build/media/images/arrow_right.gif"><code class="varname"><a href="javascript:void(0)" onclick="toggleHelp('air_temperature_threshold')">air_temperature_threshold</a></code><div id="air_temperature_threshold_help" style="display: none; padding-left: 16px; margin-top: 4px; border-top: 1px dashed #cccccc;">Air temperature is the bulk temperature of the air, not the surface (skin) temperature. Air temperature excess and deficit are calculated relative to the air temperature threshold.</div>
</td>
<td>K</td>
<td>
</td>
<td>
</td>
</tr>
<tr id="altitude_tr">
<td>
<a name="altitude"></a><img id="altitude_arrow" src="../build/media/images/arrow_right.gif"><code class="varname"><a href="javascript:void(0)" onclick="toggleHelp('altitude')">altitude</a></code><div id="altitude_help" style="display: none; padding-left: 16px; margin-top: 4px; border-top: 1px dashed #cccccc;">Altitude is the (geometric) height above the geoid, which is the reference geopotential surface. The geoid is similar to mean sea level.</div>
</td>
<td>m</td>
<td>
</td>
<td>8</td>
</tr>
<tr id="altitude_at_top_of_dry_convection_tr">
<td>
<a name="altitude_at_top_of_dry_convection"></a><img id="altitude_at_top_of_dry_convection_arrow" src="../build/media/images/arrow_right.gif"><code class="varname"><a href="javascript:void(0)" onclick="toggleHelp('altitude_at_top_of_dry_convection')">altitude_at_top_of_dry_convection</a></code><div id="altitude_at_top_of_dry_convection_help" style="display: none; padding-left: 16px; margin-top: 4px; border-top: 1px dashed #cccccc;">Altitude is the (geometric) height above the geoid, which is the reference geopotential surface. The geoid is similar to mean sea level.</div>
</td>
<td>m</td>
<td>
</td>
<td>
</td>
</tr>
<tr id="area_fraction_tr">
<td>
<a name="area_fraction"></a><img id="area_fraction_arrow" src="../build/media/images/arrow_right.gif"><code class="varname"><a href="javascript:void(0)" onclick="toggleHelp('area_fraction')">area_fraction</a></code><div id="area_fraction_help" style="display: none; padding-left: 16px; margin-top: 4px; border-top: 1px dashed #cccccc;">"Area fraction" means the fraction of horizontal area. To specify which area is quantified by a variable of area_fraction, provide a coordinate variable or scalar coordinate variable of land_cover or surface_cover. Alternatively, if one is defined, use a more specific standard name of "X_area_fraction" for the fraction of horizontal area occupied by X.</div>
</td>
<td>1</td>
<td>
</td>
<td>
</td>
</tr>
<tr id="area_fraction_below_surface_tr">
<td>
<a name="area_fraction_below_surface"></a><img id="area_fraction_below_surface_arrow" src="../build/media/images/arrow_right.gif"><code class="varname"><a href="javascript:void(0)" onclick="toggleHelp('area_fraction_below_surface')">area_fraction_below_surface</a></code><div id="area_fraction_below_surface_help" style="display: none; padding-left: 16px; margin-top: 4px; border-top: 1px dashed #cccccc;">The surface called "surface" means the lower boundary of the atmosphere. The fraction of horizontal area where the surface specified by the axes other than horizontal axes, for instance an isobaric surface, is below the (ground or sea) surface.</div>
</td>
<td>1</td>
<td>psbg</td>
<td>
</td>
</tr>
<tr id="atmosphere_absolute_vorticity_tr">
<td>
<a name="atmosphere_absolute_vorticity"></a><img id="atmosphere_absolute_vorticity_arrow" src="../build/media/images/arrow_right.gif"><code class="varname"><a href="javascript:void(0)" onclick="toggleHelp('atmosphere_absolute_vorticity')">atmosphere_absolute_vorticity</a></code><div id="atmosphere_absolute_vorticity_help" style="display: none; padding-left: 16px; margin-top: 4px; border-top: 1px dashed #cccccc;">Absolute vorticity is the sum of relative vorticity and the upward component of vorticity due to the Earth's rotation.</div>
</td>
<td>s-1</td>
<td>
</td>
<td>41</td>
</tr>
<tr id="atmosphere_boundary_layer_thickness_tr">
<td>
<a name="atmosphere_boundary_layer_thickness"></a><img id="atmosphere_boundary_layer_thickness_arrow" src="../build/media/images/arrow_right.gif"><code class="varname"><a href="javascript:void(0)" onclick="toggleHelp('atmosphere_boundary_layer_thickness')">atmosphere_boundary_layer_thickness</a></code><div id="atmosphere_boundary_layer_thickness_help" style="display: none; padding-left: 16px; margin-top: 4px; border-top: 1px dashed #cccccc;">The atmosphere boundary layer thickness is the "depth" or "height" of the (atmosphere) planetary boundary layer.</div>
</td>
<td>m</td>
<td>zmla</td>
<td>
</td>
</tr>
<tr id="atmosphere_cloud_condensed_water_content_tr">
<td>
<a name="atmosphere_cloud_condensed_water_content"></a><img id="atmosphere_cloud_condensed_water_content_arrow" src="../build/media/images/arrow_right.gif"><code class="varname"><a href="javascript:void(0)" onclick="toggleHelp('atmosphere_cloud_condensed_water_content')">atmosphere_cloud_condensed_water_content</a></code><div id="atmosphere_cloud_condensed_water_content_help" style="display: none; padding-left: 16px; margin-top: 4px; border-top: 1px dashed #cccccc;">"condensed_water" means liquid and ice. "Content" indicates a quantity per unit area. The "atmosphere content" of a quantity refers to the vertical integral from the surface to the top of the atmosphere. For the content between specified levels in the atmosphere, standard names including content_of_atmosphere_layer are used.</div>
</td>
<td>kg m-2</td>
<td>clwvi</td>
<td>76</td>
</tr>
<tr id="atmosphere_cloud_ice_content_tr">
<td>
<a name="atmosphere_cloud_ice_content"></a><img id="atmosphere_cloud_ice_content_arrow" src="../build/media/images/arrow_right.gif"><code class="varname"><a href="javascript:void(0)" onclick="toggleHelp('atmosphere_cloud_ice_content')">atmosphere_cloud_ice_content</a></code><div id="atmosphere_cloud_ice_content_help" style="display: none; padding-left: 16px; margin-top: 4px; border-top: 1px dashed #cccccc;">"Content" indicates a quantity per unit area. The "atmosphere content" of a quantity refers to the vertical integral from the surface to the top of the atmosphere. For the content between specified levels in the atmosphere, standard names including content_of_atmosphere_layer are used.</div>
</td>
<td>kg m-2</td>
<td>clivi</td>
<td>58</td>
</tr>
<tr id="atmosphere_cloud_liquid_water_content_tr">
<td>
<a name="atmosphere_cloud_liquid_water_content"></a><img id="atmosphere_cloud_liquid_water_content_arrow" src="../build/media/images/arrow_right.gif"><code class="varname"><a href="javascript:void(0)" onclick="toggleHelp('atmosphere_cloud_liquid_water_content')">atmosphere_cloud_liquid_water_content</a></code><div id="atmosphere_cloud_liquid_water_content_help" style="display: none; padding-left: 16px; margin-top: 4px; border-top: 1px dashed #cccccc;">"Content" indicates a quantity per unit area. The "atmosphere content" of a quantity refers to the vertical integral from the surface to the top of the atmosphere. For the content between specified levels in the atmosphere, standard names including content_of_atmosphere_layer are used.</div>
</td>
<td>kg m-2</td>
<td>
</td>
<td>
</td>
</tr>
<tr id="atmosphere_content_of_sulfate_aerosol_tr">
<td>
<a name="atmosphere_content_of_sulfate_aerosol"></a><img id="atmosphere_content_of_sulfate_aerosol_arrow" src="../build/media/images/arrow_right.gif"><code class="varname"><a href="javascript:void(0)" onclick="toggleHelp('atmosphere_content_of_sulfate_aerosol')">atmosphere_content_of_sulfate_aerosol</a></code><div id="atmosphere_content_of_sulfate_aerosol_help" style="display: none; padding-left: 16px; margin-top: 4px; border-top: 1px dashed #cccccc;">"Content" indicates a quantity per unit area. "Aerosol" means the suspended liquid or solid particles in air (except cloud droplets).</div>
</td>
<td>kg m-2</td>
<td>trsult</td>
<td>
</td>
</tr>
<tr id="atmosphere_convective_mass_flux_tr">
<td>
<a name="atmosphere_convective_mass_flux"></a><img id="atmosphere_convective_mass_flux_arrow" src="../build/media/images/arrow_right.gif"><code class="varname"><a href="javascript:void(0)" onclick="toggleHelp('atmosphere_convective_mass_flux')">atmosphere_convective_mass_flux</a></code><div id="atmosphere_convective_mass_flux_help" style="display: none; padding-left: 16px; margin-top: 4px; border-top: 1px dashed #cccccc;">In accordance with common usage in geophysical disciplines, "flux" implies per unit area, called "flux density" in physics. The atmosphere convective mass flux is the vertical transport of mass for a field of cumulus clouds or thermals, given by the product of air density and vertical velocity. For an area-average, cell_methods should specify whether the average is over all the area or the area of updrafts only.</div>
</td>
<td>kg m-2 s-1</td>
<td>
</td>
<td>
</td>
</tr>
<tr id="atmosphere_dry_energy_content_tr">
<td>
<a name="atmosphere_dry_energy_content"></a><img id="atmosphere_dry_energy_content_arrow" src="../build/media/images/arrow_right.gif"><code class="varname"><a href="javascript:void(0)" onclick="toggleHelp('atmosphere_dry_energy_content')">atmosphere_dry_energy_content</a></code><div id="atmosphere_dry_energy_content_help" style="display: none; padding-left: 16px; margin-top: 4px; border-top: 1px dashed #cccccc;">"Content" indicates a quantity per unit area. The "atmosphere content" of a quantity refers to the vertical integral from the surface to the top of the atmosphere. For the content between specified levels in the atmosphere, standard names including content_of_atmosphere_layer are used. Dry energy is the sum of dry static energy and kinetic energy. Dry static energy is the sum of enthalpy and potential energy (itself the sum of gravitational and centripetal potential energy). Enthalpy can be written either as (1) CpT, where Cp is heat capacity at constant pressure, T is absolute temperature, or (2) U+pV, where U is internal energy, p is pressure and V is volume.</div>
</td>
<td>J m-2</td>
<td>
</td>
<td>
</td>
</tr>
<tr id="atmosphere_dry_static_energy_content_tr">
<td>
<a name="atmosphere_dry_static_energy_content"></a><img id="atmosphere_dry_static_energy_content_arrow" src="../build/media/images/arrow_right.gif"><code class="varname"><a href="javascript:void(0)" onclick="toggleHelp('atmosphere_dry_static_energy_content')">atmosphere_dry_static_energy_content</a></code><div id="atmosphere_dry_static_energy_content_help" style="display: none; padding-left: 16px; margin-top: 4px; border-top: 1px dashed #cccccc;">"Content" indicates a quantity per unit area. The "atmosphere content" of a quantity refers to the vertical integral from the surface to the top of the atmosphere. For the content between specified levels in the atmosphere, standard names including content_of_atmosphere_layer are used. Dry static energy is the sum of enthalpy and potential energy (itself the sum of gravitational and centripetal potential energy). Enthalpy can be written either as (1) CpT, where Cp is heat capacity at constant pressure, T is absolute temperature, or (2) U+pV, where U is internal energy, p is pressure and V is volume.</div>
</td>
<td>J m-2</td>
<td>
</td>
<td>
</td>
</tr>
<tr id="atmosphere_eastward_stress_due_to_gravity_wave_drag_tr">
<td>
<a name="atmosphere_eastward_stress_due_to_gravity_wave_drag"></a><img id="atmosphere_eastward_stress_due_to_gravity_wave_drag_arrow" src="../build/media/images/arrow_right.gif"><code class="varname"><a href="javascript:void(0)" onclick="toggleHelp('atmosphere_eastward_stress_due_to_gravity_wave_drag')">atmosphere_eastward_stress_due_to_gravity_wave_drag</a></code><div id="atmosphere_eastward_stress_due_to_gravity_wave_drag_help" style="display: none; padding-left: 16px; margin-top: 4px; border-top: 1px dashed #cccccc;">The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. "Eastward" indicates a vector component which is positive when directed eastward (negative westward). Atmosphere_Xward_stress is a stress which tends to accelerate the atmosphere in direction X.</div>
</td>
<td>Pa</td>
<td>tauugwd</td>
<td>
</td>
</tr>
<tr id="atmosphere_energy_content_tr">
<td>
<a name="atmosphere_energy_content"></a><img id="atmosphere_energy_content_arrow" src="../build/media/images/arrow_right.gif"><code class="varname"><a href="javascript:void(0)" onclick="toggleHelp('atmosphere_energy_content')">atmosphere_energy_content</a></code><div id="atmosphere_energy_content_help" style="display: none; padding-left: 16px; margin-top: 4px; border-top: 1px dashed #cccccc;">"Content" indicates a quantity per unit area. The "atmosphere content" of a quantity refers to the vertical integral from the surface to the top of the atmosphere. For the content between specified levels in the atmosphere, standard names including content_of_atmosphere_layer are used. "Atmosphere energy content" has not yet been precisely defined! Please express your views on this quantity on the CF email list.</div>
</td>
<td>J m-2</td>
<td>
</td>
<td>
</td>
</tr>
<tr id="atmosphere_enthalpy_content_tr">
<td>
<a name="atmosphere_enthalpy_content"></a><img id="atmosphere_enthalpy_content_arrow" src="../build/media/images/arrow_right.gif"><code class="varname"><a href="javascript:void(0)" onclick="toggleHelp('atmosphere_enthalpy_content')">atmosphere_enthalpy_content</a></code><div id="atmosphere_enthalpy_content_help" style="display: none; padding-left: 16px; margin-top: 4px; border-top: 1px dashed #cccccc;">"Content" indicates a quantity per unit area. The "atmosphere content" of a quantity refers to the vertical integral from the surface to the top of the atmosphere. For the content between specified levels in the atmosphere, standard names including content_of_atmosphere_layer are used. Enthalpy can be written either as (1) CpT, where Cp is heat capacity at constant pressure, T is absolute temperature, or (2) U+pV, where U is internal energy, p is pressure and V is volume.</div>
</td>
<td>J m-2</td>
<td>
</td>
<td>
</td>
</tr>
<tr id="atmosphere_heat_diffusivity_tr">
<td>
<a name="atmosphere_heat_diffusivity"></a><img id="atmosphere_heat_diffusivity_arrow" src="../build/media/images/arrow_right.gif"><code class="varname"><a href="javascript:void(0)" onclick="toggleHelp('atmosphere_heat_diffusivity')">atmosphere_heat_diffusivity</a></code><div id="atmosphere_heat_diffusivity_help" style="display: none; padding-left: 16px; margin-top: 4px; border-top: 1px dashed #cccccc;">
No help available.
</div>
</td>
<td>m2 s-1</td>
<td>
</td>
<td>
</td>
</tr>
<tr id="atmosphere_horizontal_streamfunction_tr">
<td>
<a name="atmosphere_horizontal_streamfunction"></a><img id="atmosphere_horizontal_streamfunction_arrow" src="../build/media/images/arrow_right.gif"><code class="varname"><a href="javascript:void(0)" onclick="toggleHelp('atmosphere_horizontal_streamfunction')">atmosphere_horizontal_streamfunction</a></code><div id="atmosphere_horizontal_streamfunction_help" style="display: none; padding-left: 16px; margin-top: 4px; border-top: 1px dashed #cccccc;">"Horizontal" indicates that the streamfunction applies to a horizontal velocity field on a particular vertical level.</div>
</td>
<td>m2 s-1</td>
<td>
</td>
<td>35</td>
</tr>
<tr id="atmosphere_horizontal_velocity_potential_tr">
<td>
<a name="atmosphere_horizontal_velocity_potential"></a><img id="atmosphere_horizontal_velocity_potential_arrow" src="../build/media/images/arrow_right.gif"><code class="varname"><a href="javascript:void(0)" onclick="toggleHelp('atmosphere_horizontal_velocity_potential')">atmosphere_horizontal_velocity_potential</a></code><div id="atmosphere_horizontal_velocity_potential_help" style="display: none; padding-left: 16px; margin-top: 4px; border-top: 1px dashed #cccccc;">A velocity is a vector quantity. "Horizontal" indicates that the velocity potential applies to a horizontal velocity field on a particular vertical level.</div>
</td>
<td>m2 s-1</td>
<td>
</td>
<td>36</td>
</tr>
<tr id="atmosphere_hybrid_height_coordinate_tr">
<td>
<a name="atmosphere_hybrid_height_coordinate"></a><img id="atmosphere_hybrid_height_coordinate_arrow" src="../build/media/images/arrow_right.gif"><code class="varname"><a href="javascript:void(0)" onclick="toggleHelp('atmosphere_hybrid_height_coordinate')">atmosphere_hybrid_height_coordinate</a></code><div id="atmosphere_hybrid_height_coordinate_help" style="display: none; padding-left: 16px; margin-top: 4px; border-top: 1px dashed #cccccc;">See Appendix D of the CF convention for information about dimensionless vertical coordinates.</div>
</td>
<td>m</td>
<td>
</td>
<td>
</td>
</tr>
<tr id="atmosphere_hybrid_sigma_pressure_coordinate_tr">
<td>
<a name="atmosphere_hybrid_sigma_pressure_coordinate"></a><img id="atmosphere_hybrid_sigma_pressure_coordinate_arrow" src="../build/media/images/arrow_right.gif"><code class="varname"><a href="javascript:void(0)" onclick="toggleHelp('atmosphere_hybrid_sigma_pressure_coordinate')">atmosphere_hybrid_sigma_pressure_coordinate</a></code><div id="atmosphere_hybrid_sigma_pressure_coordinate_help" style="display: none; padding-left: 16px; margin-top: 4px; border-top: 1px dashed #cccccc;">See Appendix D of the CF convention for information about dimensionless vertical coordinates.</div>
</td>
<td>1</td>
<td>
</td>
<td>
</td>
</tr>
<tr id="atmosphere_kinetic_energy_content_tr">
<td>
<a name="atmosphere_kinetic_energy_content"></a><img id="atmosphere_kinetic_energy_content_arrow" src="../build/media/images/arrow_right.gif"><code class="varname"><a href="javascript:void(0)" onclick="toggleHelp('atmosphere_kinetic_energy_content')">atmosphere_kinetic_energy_content</a></code><div id="atmosphere_kinetic_energy_content_help" style="display: none; padding-left: 16px; margin-top: 4px; border-top: 1px dashed #cccccc;">"Content" indicates a quantity per unit area. The "atmosphere content" of a quantity refers to the vertical integral from the surface to the top of the atmosphere. For the content between specified levels in the atmosphere, standard names including content_of_atmosphere_layer are used.</div>
</td>
<td>J m-2</td>
<td>
</td>
<td>
</td>
</tr>
<tr id="atmosphere_ln_pressure_coordinate_tr">
<td>
<a name="atmosphere_ln_pressure_coordinate"></a><img id="atmosphere_ln_pressure_coordinate_arrow" src="../build/media/images/arrow_right.gif"><code class="varname"><a href="javascript:void(0)" onclick="toggleHelp('atmosphere_ln_pressure_coordinate')">atmosphere_ln_pressure_coordinate</a></code><div id="atmosphere_ln_pressure_coordinate_help" style="display: none; padding-left: 16px; margin-top: 4px; border-top: 1px dashed #cccccc;">"ln_X" means natural logarithm of X. X must be dimensionless. See Appendix D of the CF convention for information about dimensionless vertical coordinates.</div>
</td>
<td>1</td>
<td>
</td>
<td>
</td>
</tr>
<tr id="atmosphere_mass_per_unit_area_tr">
<td>
<a name="atmosphere_mass_per_unit_area"></a><img id="atmosphere_mass_per_unit_area_arrow" src="../build/media/images/arrow_right.gif"><code class="varname"><a href="javascript:void(0)" onclick="toggleHelp('atmosphere_mass_per_unit_area')">atmosphere_mass_per_unit_area</a></code><div id="atmosphere_mass_per_unit_area_help" style="display: none; padding-left: 16px; margin-top: 4px; border-top: 1px dashed #cccccc;">"X_area" means the horizontal area occupied by X within the grid cell.</div>
</td>
<td>kg m-2</td>
<td>
</td>
<td>
</td>
</tr>
<tr id="atmosphere_momentum_diffusivity_tr">
<td>
<a name="atmosphere_momentum_diffusivity"></a><img id="atmosphere_momentum_diffusivity_arrow" src="../build/media/images/arrow_right.gif"><code class="varname"><a href="javascript:void(0)" onclick="toggleHelp('atmosphere_momentum_diffusivity')">atmosphere_momentum_diffusivity</a></code><div id="atmosphere_momentum_diffusivity_help" style="display: none; padding-left: 16px; margin-top: 4px; border-top: 1px dashed #cccccc;">
No help available.
</div>
</td>
<td>m2 s-1</td>
<td>
</td>
<td>
</td>
</tr>
<tr id="atmosphere_net_rate_of_absorption_of_longwave_energy_tr">
<td>
<a name="atmosphere_net_rate_of_absorption_of_longwave_energy"></a><img id="atmosphere_net_rate_of_absorption_of_longwave_energy_arrow" src="../build/media/images/arrow_right.gif"><code class="varname"><a href="javascript:void(0)" onclick="toggleHelp('atmosphere_net_rate_of_absorption_of_longwave_energy')">atmosphere_net_rate_of_absorption_of_longwave_energy</a></code><div id="atmosphere_net_rate_of_absorption_of_longwave_energy_help" style="display: none; padding-left: 16px; margin-top: 4px; border-top: 1px dashed #cccccc;">"longwave" means longwave radiation. Net absorbed radiation is the difference between absorbed and emitted radiation.</div>
</td>
<td>W m-2</td>
<td>
</td>
<td>
</td>
</tr>
<tr id="atmosphere_net_rate_of_absorption_of_shortwave_energy_tr">
<td>
<a name="atmosphere_net_rate_of_absorption_of_shortwave_energy"></a><img id="atmosphere_net_rate_of_absorption_of_shortwave_energy_arrow" src="../build/media/images/arrow_right.gif"><code class="varname"><a href="javascript:void(0)" onclick="toggleHelp('atmosphere_net_rate_of_absorption_of_shortwave_energy')">atmosphere_net_rate_of_absorption_of_shortwave_energy</a></code><div id="atmosphere_net_rate_of_absorption_of_shortwave_energy_help" style="display: none; padding-left: 16px; margin-top: 4px; border-top: 1px dashed #cccccc;">"shortwave" means shortwave radiation. Net absorbed radiation is the difference between absorbed and emitted radiation.</div>
</td>
<td>W m-2</td>
<td>
</td>
<td>
</td>
</tr>
<tr id="atmosphere_northward_stress_due_to_gravity_wave_drag_tr">
<td>
<a name="atmosphere_northward_stress_due_to_gravity_wave_drag"></a><img id="atmosphere_northward_stress_due_to_gravity_wave_drag_arrow" src="../build/media/images/arrow_right.gif"><code class="varname"><a href="javascript:void(0)" onclick="toggleHelp('atmosphere_northward_stress_due_to_gravity_wave_drag')">atmosphere_northward_stress_due_to_gravity_wave_drag</a></code><div id="atmosphere_northward_stress_due_to_gravity_wave_drag_help" style="display: none; padding-left: 16px; margin-top: 4px; border-top: 1px dashed #cccccc;">The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. "Northward" indicates a vector component which is positive when directed northward (negative southward). Atmosphere_Xward_stress is a stress which tends to accelerate the atmosphere in direction X.</div>
</td>
<td>Pa</td>
<td>tauvgwd</td>
<td>
</td>
</tr>
<tr id="atmosphere_optical_thickness_due_to_aerosol_tr">
<td>
<a name="atmosphere_optical_thickness_due_to_aerosol"></a><img id="atmosphere_optical_thickness_due_to_aerosol_arrow" src="../build/media/images/arrow_right.gif"><code class="varname"><a href="javascript:void(0)" onclick="toggleHelp('atmosphere_optical_thickness_due_to_aerosol')">atmosphere_optical_thickness_due_to_aerosol</a></code><div id="atmosphere_optical_thickness_due_to_aerosol_help" style="display: none; padding-left: 16px; margin-top: 4px; border-top: 1px dashed #cccccc;">The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. The optical thickness is the integral along the path of radiation of a volume scattering/absorption/attenuation coefficient. The radiative flux is reduced by a factor exp(-optical_thickness) on traversing the path. The atmosphere optical thickness applies to radiation passing through the entire atmosphere. "Aerosol" means the suspended liquid or solid particles in air (except cloud droplets).</div>
</td>
<td>1</td>
<td>
</td>
<td>
</td>
</tr>
<tr id="atmosphere_potential_energy_content_tr">
<td>
<a name="atmosphere_potential_energy_content"></a><img id="atmosphere_potential_energy_content_arrow" src="../build/media/images/arrow_right.gif"><code class="varname"><a href="javascript:void(0)" onclick="toggleHelp('atmosphere_potential_energy_content')">atmosphere_potential_energy_content</a></code><div id="atmosphere_potential_energy_content_help" style="display: none; padding-left: 16px; margin-top: 4px; border-top: 1px dashed #cccccc;">"Content" indicates a quantity per unit area. The "atmosphere content" of a quantity refers to the vertical integral from the surface to the top of the atmosphere. For the content between specified levels in the atmosphere, standard names including content_of_atmosphere_layer are used. Potential energy is the sum of the gravitational potential energy relative to the geoid and the centripetal potential energy. (The geopotential is the specific potential energy.)</div>
</td>
<td>J m-2</td>
<td>
</td>
<td>
</td>
</tr>
<tr id="atmosphere_relative_vorticity_tr">
<td>
<a name="atmosphere_relative_vorticity"></a><img id="atmosphere_relative_vorticity_arrow" src="../build/media/images/arrow_right.gif"><code class="varname"><a href="javascript:void(0)" onclick="toggleHelp('atmosphere_relative_vorticity')">atmosphere_relative_vorticity</a></code><div id="atmosphere_relative_vorticity_help" style="display: none; padding-left: 16px; margin-top: 4px; border-top: 1px dashed #cccccc;">Relative vorticity is the upward component of the vorticity vector i.e. the component which arises from horizontal velocity.</div>
</td>
<td>s-1</td>
<td>
</td>
<td>43 E138</td>
</tr>
<tr id="atmosphere_sigma_coordinate_tr">
<td>
<a name="atmosphere_sigma_coordinate"></a><img id="atmosphere_sigma_coordinate_arrow" src="../build/media/images/arrow_right.gif"><code class="varname"><a href="javascript:void(0)" onclick="toggleHelp('atmosphere_sigma_coordinate')">atmosphere_sigma_coordinate</a></code><div id="atmosphere_sigma_coordinate_help" style="display: none; padding-left: 16px; margin-top: 4px; border-top: 1px dashed #cccccc;">See Appendix D of the CF convention for information about dimensionless vertical coordinates.</div>
</td>
<td>1</td>
<td>
</td>
<td>
</td>
</tr>
<tr id="atmosphere_sleve_coordinate_tr">
<td>
<a name="atmosphere_sleve_coordinate"></a><img id="atmosphere_sleve_coordinate_arrow" src="../build/media/images/arrow_right.gif"><code class="varname"><a href="javascript:void(0)" onclick="toggleHelp('atmosphere_sleve_coordinate')">atmosphere_sleve_coordinate</a></code><div id="atmosphere_sleve_coordinate_help" style="display: none; padding-left: 16px; margin-top: 4px; border-top: 1px dashed #cccccc;">See Appendix D of the CF convention for information about dimensionless vertical coordinates.</div>
</td>
<td>1</td>
<td>
</td>
<td>
</td>
</tr>
<tr id="atmosphere_specific_convective_available_potential_energy_tr">
<td>
<a name="atmosphere_specific_convective_available_potential_energy"></a><img id="atmosphere_specific_convective_available_potential_energy_arrow" src="../build/media/images/arrow_right.gif"><code class="varname"><a href="javascript:void(0)" onclick="toggleHelp('atmosphere_specific_convective_available_potential_energy')">atmosphere_specific_convective_available_potential_energy</a></code><div style="padding-left: 16px;">
<i>alias:</i> specific_convective_available_potential_energy</div>
<div id="atmosphere_specific_convective_available_potential_energy_help" style="display: none; padding-left: 16px; margin-top: 4px; border-top: 1px dashed #cccccc;">"specific" means per unit mass. Potential energy is the sum of the gravitational potential energy relative to the geoid and the centripetal potential energy. (The geopotential is the specific potential energy.) Convective(ly) available potential energy is often abbreviated as "CAPE".</div>
</td>
<td>J kg-1</td>
<td>
</td>
<td>
</td>
</tr>
<tr id="atmosphere_sulfate_content_tr">
<td>
<a name="atmosphere_sulfate_content"></a><img id="atmosphere_sulfate_content_arrow" src="../build/media/images/arrow_right.gif"><code class="varname"><a href="javascript:void(0)" onclick="toggleHelp('atmosphere_sulfate_content')">atmosphere_sulfate_content</a></code><div style="padding-left: 16px;">
<i>alias:</i> atmosphere_so4_content</div>
<div id="atmosphere_sulfate_content_help" style="display: none; padding-left: 16px; margin-top: 4px; border-top: 1px dashed #cccccc;">"Content" indicates a quantity per unit area. The "atmosphere content" of a quantity refers to the vertical integral from the surface to the top of the atmosphere. For the content between specified levels in the atmosphere, standard names including content_of_atmosphere_layer are used.</div>
</td>
<td>kg m-2</td>
<td>
</td>
<td>
</td>
</tr>
<tr id="atmosphere_water_content_tr">
<td>
<a name="atmosphere_water_content"></a><img id="atmosphere_water_content_arrow" src="../build/media/images/arrow_right.gif"><code class="varname"><a href="javascript:void(0)" onclick="toggleHelp('atmosphere_water_content')">atmosphere_water_content</a></code><div id="atmosphere_water_content_help" style="display: none; padding-left: 16px; margin-top: 4px; border-top: 1px dashed #cccccc;">"Content" indicates a quantity per unit area. The "atmosphere content" of a quantity refers to the vertical integral from the surface to the top of the atmosphere. For the content between specified levels in the atmosphere, standard names including content_of_atmosphere_layer are used. "Water" means water in all phases.</div>
</td>
<td>kg m-2</td>
<td>
</td>
<td>
</td>
</tr>
<tr id="atmosphere_water_vapor_content_tr">
<td>
<a name="atmosphere_water_vapor_content"></a><img id="atmosphere_water_vapor_content_arrow" src="../build/media/images/arrow_right.gif"><code class="varname"><a href="javascript:void(0)" onclick="toggleHelp('atmosphere_water_vapor_content')">atmosphere_water_vapor_content</a></code><div id="atmosphere_water_vapor_content_help" style="display: none; padding-left: 16px; margin-top: 4px; border-top: 1px dashed #cccccc;">"Content" indicates a quantity per unit area. The "atmosphere content" of a quantity refers to the vertical integral from the surface to the top of the atmosphere. For the content between specified levels in the atmosphere, standard names including content_of_atmosphere_layer are used. Atmosphere water vapor content is sometimes referred to as "precipitable water", although this term does not imply the water could all be precipitated.</div>
</td>
<td>kg m-2</td>
<td>prw</td>
<td>54</td>
</tr>
<tr id="baroclinic_eastward_sea_water_velocity_tr">
<td>
<a name="baroclinic_eastward_sea_water_velocity"></a><img id="baroclinic_eastward_sea_water_velocity_arrow" src="../build/media/images/arrow_right.gif"><code class="varname"><a href="javascript:void(0)" onclick="toggleHelp('baroclinic_eastward_sea_water_velocity')">baroclinic_eastward_sea_water_velocity</a></code><div id="baroclinic_eastward_sea_water_velocity_help" style="display: none; padding-left: 16px; margin-top: 4px; border-top: 1px dashed #cccccc;">A velocity is a vector quantity. "Eastward" indicates a vector component which is positive when directed eastward (negative westward).</div>
</td>
<td>m s-1</td>
<td>
</td>
<td>
</td>
</tr>
<tr id="baroclinic_northward_sea_water_velocity_tr">
<td>
<a name="baroclinic_northward_sea_water_velocity"></a><img id="baroclinic_northward_sea_water_velocity_arrow" src="../build/media/images/arrow_right.gif"><code class="varname"><a href="javascript:void(0)" onclick="toggleHelp('baroclinic_northward_sea_water_velocity')">baroclinic_northward_sea_water_velocity</a></code><div id="baroclinic_northward_sea_water_velocity_help" style="display: none; padding-left: 16px; margin-top: 4px; border-top: 1px dashed #cccccc;">A velocity is a vector quantity. "Northward" indicates a vector component which is positive when directed northward (negative southward).</div>
</td>
<td>m s-1</td>
<td>
</td>
<td>
</td>
</tr>
<tr id="barotropic_eastward_sea_water_velocity_tr">
<td>
<a name="barotropic_eastward_sea_water_velocity"></a><img id="barotropic_eastward_sea_water_velocity_arrow" src="../build/media/images/arrow_right.gif"><code class="varname"><a href="javascript:void(0)" onclick="toggleHelp('barotropic_eastward_sea_water_velocity')">barotropic_eastward_sea_water_velocity</a></code><div id="barotropic_eastward_sea_water_velocity_help" style="display: none; padding-left: 16px; margin-top: 4px; border-top: 1px dashed #cccccc;">A velocity is a vector quantity. "Eastward" indicates a vector component which is positive when directed eastward (negative westward).</div>
</td>
<td>m s-1</td>
<td>
</td>
<td>
</td>
</tr>
<tr id="barotropic_northward_sea_water_velocity_tr">
<td>
<a name="barotropic_northward_sea_water_velocity"></a><img id="barotropic_northward_sea_water_velocity_arrow" src="../build/media/images/arrow_right.gif"><code class="varname"><a href="javascript:void(0)" onclick="toggleHelp('barotropic_northward_sea_water_velocity')">barotropic_northward_sea_water_velocity</a></code><div id="barotropic_northward_sea_water_velocity_help" style="display: none; padding-left: 16px; margin-top: 4px; border-top: 1px dashed #cccccc;">A velocity is a vector quantity. "Northward" indicates a vector component which is positive when directed northward (negative southward).</div>
</td>
<td>m s-1</td>
<td>
</td>
<td>
</td>
</tr>
<tr id="baseflow_amount_tr">
<td>
<a name="baseflow_amount"></a><img id="baseflow_amount_arrow" src="../build/media/images/arrow_right.gif"><code class="varname"><a href="javascript:void(0)" onclick="toggleHelp('baseflow_amount')">baseflow_amount</a></code><div id="baseflow_amount_help" style="display: none; padding-left: 16px; margin-top: 4px; border-top: 1px dashed #cccccc;">"Baseflow" is subsurface runoff which takes place below the level of the water table. Runoff is the liquid water which drains from land. "Amount" means mass per unit area.</div>
</td>
<td>kg m-2</td>
<td>
</td>
<td>
</td>
</tr>
<tr id="bedrock_altitude_tr">
<td>
<a name="bedrock_altitude"></a><img id="bedrock_altitude_arrow" src="../build/media/images/arrow_right.gif"><code class="varname"><a href="javascript:void(0)" onclick="toggleHelp('bedrock_altitude')">bedrock_altitude</a></code><div id="bedrock_altitude_help" style="display: none; padding-left: 16px; margin-top: 4px; border-top: 1px dashed #cccccc;">Altitude is the (geometric) height above the geoid, which is the reference geopotential surface. The geoid is similar to mean sea level. "Bedrock" is the solid Earth surface beneath land ice or ocean water.</div>
</td>
<td>m</td>
<td>
</td>
<td>
</td>
</tr>
<tr id="bedrock_altitude_change_due_to_isostatic_adjustment_tr">
<td>
<a name="bedrock_altitude_change_due_to_isostatic_adjustment"></a><img id="bedrock_altitude_change_due_to_isostatic_adjustment_arrow" src="../build/media/images/arrow_right.gif"><code class="varname"><a href="javascript:void(0)" onclick="toggleHelp('bedrock_altitude_change_due_to_isostatic_adjustment')">bedrock_altitude_change_due_to_isostatic_adjustment</a></code><div id="bedrock_altitude_change_due_to_isostatic_adjustment_help" style="display: none; padding-left: 16px; margin-top: 4px; border-top: 1px dashed #cccccc;">The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. Altitude is the (geometric) height above the geoid, which is the reference geopotential surface. The geoid is similar to mean sea level. "Bedrock" is the solid Earth surface beneath land ice or ocean water. The zero of bedrock altitude change is arbitrary. Isostatic adjustment is the vertical movement of the lithosphere due to changing surface ice and water loads.</div>
</td>
<td>m</td>
<td>
</td>
<td>
</td>
</tr>
<tr id="bioluminescent_photon_rate_in_sea_water_tr">
<td>
<a name="bioluminescent_photon_rate_in_sea_water"></a><img id="bioluminescent_photon_rate_in_sea_water_arrow" src="../build/media/images/arrow_right.gif"><code class="varname"><a href="javascript:void(0)" onclick="toggleHelp('bioluminescent_photon_rate_in_sea_water')">bioluminescent_photon_rate_in_sea_water</a></code><div id="bioluminescent_photon_rate_in_sea_water_help" style="display: none; padding-left: 16px; margin-top: 4px; border-top: 1px dashed #cccccc;">
No help available.
</div>
</td>
<td>s-1 m-3</td>
<td>
</td>
<td>
</td>
</tr>
<tr id="biomass_burning_carbon_flux_tr">
<td>
<a name="biomass_burning_carbon_flux"></a><img id="biomass_burning_carbon_flux_arrow" src="../build/media/images/arrow_right.gif"><code class="varname"><a href="javascript:void(0)" onclick="toggleHelp('biomass_burning_carbon_flux')">biomass_burning_carbon_flux</a></code><div id="biomass_burning_carbon_flux_help" style="display: none; padding-left: 16px; margin-top: 4px; border-top: 1px dashed #cccccc;">"Biomass burning carbon" refers to the rate at which biomass is burned by forest fires etc., expressed as the mass of carbon which it contains. In accordance with common usage in geophysical disciplines, "flux" implies per unit area, called "flux density" in physics.</div>
</td>
<td>kg m-2 s-1</td>
<td>
</td>
<td>
</td>
</tr>
<tr id="brightness_temperature_tr">
<td>
<a name="brightness_temperature"></a><img id="brightness_temperature_arrow" src="../build/media/images/arrow_right.gif"><code class="varname"><a href="javascript:void(0)" onclick="toggleHelp('brightness_temperature')">brightness_temperature</a></code><div id="brightness_temperature_help" style="display: none; padding-left: 16px; margin-top: 4px; border-top: 1px dashed #cccccc;">The brightness temperature of a body is the temperature of a black body which radiates the same power per unit solid angle per unit area.</div>
</td>
<td>K</td>
<td>
</td>
<td>118</td>
</tr>
<tr id="brunt_vaisala_frequency_in_air_tr">
<td>
<a name="brunt_vaisala_frequency_in_air"></a><img id="brunt_vaisala_frequency_in_air_arrow" src="../build/media/images/arrow_right.gif"><code class="varname"><a href="javascript:void(0)" onclick="toggleHelp('brunt_vaisala_frequency_in_air')">brunt_vaisala_frequency_in_air</a></code><div id="brunt_vaisala_frequency_in_air_help" style="display: none; padding-left: 16px; margin-top: 4px; border-top: 1px dashed #cccccc;">Frequency is the number of oscillations of a wave per unit time.</div>
</td>
<td>s-1</td>
<td>
</td>
<td>
</td>
</tr>
<tr id="canopy_and_surface_water_amount_tr">
<td>
<a name="canopy_and_surface_water_amount"></a><img id="canopy_and_surface_water_amount_arrow" src="../build/media/images/arrow_right.gif"><code class="varname"><a href="javascript:void(0)" onclick="toggleHelp('canopy_and_surface_water_amount')">canopy_and_surface_water_amount</a></code><div id="canopy_and_surface_water_amount_help" style="display: none; padding-left: 16px; margin-top: 4px; border-top: 1px dashed #cccccc;">The surface called "surface" means the lower boundary of the atmosphere. "Amount" means mass per unit area. "Water" means water in all phases, including frozen i.e. ice and snow. "Canopy" means the plant or vegetation canopy. "Canopy and surface water" means the sum of water on the ground and on the canopy.</div>
</td>
<td>kg m-2</td>
<td>
</td>
<td>
</td>
</tr>
<tr id="canopy_height_tr">
<td>
<a name="canopy_height"></a><img id="canopy_height_arrow" src="../build/media/images/arrow_right.gif"><code class="varname"><a href="javascript:void(0)" onclick="toggleHelp('canopy_height')">canopy_height</a></code><div id="canopy_height_help" style="display: none; padding-left: 16px; margin-top: 4px; border-top: 1px dashed #cccccc;">Height is the vertical distance above the surface. "Canopy" means the plant or vegetation canopy.</div>
</td>
<td>m</td>
<td>