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Quarto GHA Workflow Runner committed Jun 13, 2024
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2 changes: 1 addition & 1 deletion .nojekyll
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27 changes: 20 additions & 7 deletions notebooks/datasets/DirectCloud_Access_SWOT_Oceanography.html
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Expand Up @@ -1055,11 +1055,12 @@ <h2 id="toc-title">On this page</h2>
<li><a href="#cross-over-calibration-correction" id="toc-cross-over-calibration-correction" class="nav-link" data-scroll-target="#cross-over-calibration-correction">Cross Over Calibration Correction</a></li>
<li><a href="#plot" id="toc-plot" class="nav-link" data-scroll-target="#plot">Plot</a></li>
</ul></li>
<li><a href="#swot-level-2-nadir-altimeter-interim-geophysical-data-record-with-waveforms---ssha-version-1.0" id="toc-swot-level-2-nadir-altimeter-interim-geophysical-data-record-with-waveforms---ssha-version-1.0" class="nav-link" data-scroll-target="#swot-level-2-nadir-altimeter-interim-geophysical-data-record-with-waveforms---ssha-version-1.0">2. <strong>SWOT Level 2 Nadir Altimeter Interim Geophysical Data Record with Waveforms - SSHA Version 1.0</strong></a>
<li><a href="#swot-level-2-nadir-altimeter-interim-geophysical-data-record-with-waveforms---ssha-version-2.0" id="toc-swot-level-2-nadir-altimeter-interim-geophysical-data-record-with-waveforms---ssha-version-2.0" class="nav-link" data-scroll-target="#swot-level-2-nadir-altimeter-interim-geophysical-data-record-with-waveforms---ssha-version-2.0">2. <strong>SWOT Level 2 Nadir Altimeter Interim Geophysical Data Record with Waveforms - SSHA Version 2.0</strong></a>
<ul class="collapse">
<li><a href="#access-files-without-any-downloads-to-your-running-instance-1" id="toc-access-files-without-any-downloads-to-your-running-instance-1" class="nav-link" data-scroll-target="#access-files-without-any-downloads-to-your-running-instance-1">Access Files without any Downloads to your running instance</a></li>
<li><a href="#plot-1" id="toc-plot-1" class="nav-link" data-scroll-target="#plot-1">Plot</a></li>
</ul></li>
<li><a href="#swot-level-2-radiometer-datasets" id="toc-swot-level-2-radiometer-datasets" class="nav-link" data-scroll-target="#swot-level-2-radiometer-datasets">3. <strong>SWOT Level 2 Radiometer Datasets</strong></a></li>
<li><a href="#a-final-word" id="toc-a-final-word" class="nav-link" data-scroll-target="#a-final-word">A final word…</a></li>
</ul></li>
</ul>
Expand Down Expand Up @@ -1089,6 +1090,7 @@ <h2 class="anchored" data-anchor-id="summary">Summary</h2>
<ul>
<li>This is a subcollection of the parent collection: <code>SWOT_L2_NALT_IGDR_2.0</code></li>
</ul></li>
<li><strong>SWOT Level 2 Radiometer Data Products</strong> - overview of all</li>
</ol>
<p>We will access the data from inside the AWS cloud (us-west-2 region, specifically) and load a time series made of multiple netCDF files into a single xarray dataset.</p>
<section id="requirement" class="level3">
Expand Down Expand Up @@ -1127,14 +1129,16 @@ <h3 class="anchored" data-anchor-id="earthdata-login">Earthdata Login</h3>
</section>
<section id="swot-level-2-karin-low-rate-sea-surface-height-data-product" class="level2">
<h2 class="anchored" data-anchor-id="swot-level-2-karin-low-rate-sea-surface-height-data-product">1. <strong>SWOT Level 2 KaRIn Low Rate Sea Surface Height Data Product</strong></h2>
<p>Outlined below is a map of the different KaRIn Data Products we host at PO.DAAC and their sub collections, and why you may choose one over the other. For more information, see the <a href="https://archive.podaac.earthdata.nasa.gov/podaac-ops-cumulus-docs/web-misc/swot_mission_docs/D-109532_SWOT_UserHandbook_20240502.pdf">SWOT Data User Handbook</a>.</p>
<p><img src="../../images/SWOT_LR_explanations/SWOT_LR_KaRIn.png" class="img-fluid"></p>
<p>Once you’ve picked the dataset you want to look at, you can enter its shortname or subcollection below in the search query.</p>
<section id="access-files-without-any-downloads-to-your-running-instance" class="level3">
<h3 class="anchored" data-anchor-id="access-files-without-any-downloads-to-your-running-instance">Access Files without any Downloads to your running instance</h3>
<p>Here, we use the <code>earthaccess</code> Python library to search for and then load the data directly into xarray without downloading any files. This dataset is currently restricted to a select few people, and can only be accessed using the version of <code>earthaccess</code> reinstalled above. If zero granules are returned, make sure the correct version ‘0.5.4’ is installed.</p>
<div id="cell-6" class="cell" data-tags="[]" data-execution_count="6">
<div id="cell-6" class="cell" data-tags="[]" data-execution_count="3">
<div class="sourceCode cell-code" id="cb3"><pre class="sourceCode python code-with-copy"><code class="sourceCode python"><span id="cb3-1"><a href="#cb3-1" aria-hidden="true" tabindex="-1"></a><span class="co">#retrieves granule from the day we want</span></span>
<span id="cb3-2"><a href="#cb3-2" aria-hidden="true" tabindex="-1"></a>karin_results <span class="op">=</span> earthaccess.search_data(short_name <span class="op">=</span> <span class="st">'SWOT_L2_LR_SSH_2.0'</span>, </span>
<span id="cb3-3"><a href="#cb3-3" aria-hidden="true" tabindex="-1"></a> temporal <span class="op">=</span> (<span class="st">"2024-02-01 12:00:00"</span>, <span class="st">"2024-02-01 19:43:00"</span>), </span>
<span id="cb3-4"><a href="#cb3-4" aria-hidden="true" tabindex="-1"></a> granule_name <span class="op">=</span> <span class="st">'*Expert*'</span>) <span class="co"># filter by files with "Expert" in file name. This collection has subcollections of 'Basic', 'Windwave', 'Unsmoothed' and 'Expert' granules.</span></span></code><button title="Copy to Clipboard" class="code-copy-button"><i class="bi"></i></button></pre></div>
<span id="cb3-2"><a href="#cb3-2" aria-hidden="true" tabindex="-1"></a>karin_results <span class="op">=</span> earthaccess.search_data(short_name <span class="op">=</span> <span class="st">'SWOT_L2_LR_SSH_EXPERT_2.0'</span>, </span>
<span id="cb3-3"><a href="#cb3-3" aria-hidden="true" tabindex="-1"></a> temporal <span class="op">=</span> (<span class="st">"2024-02-01 12:00:00"</span>, <span class="st">"2024-02-01 19:43:00"</span>))</span></code><button title="Copy to Clipboard" class="code-copy-button"><i class="bi"></i></button></pre></div>
<div class="cell-output cell-output-stdout">
<pre><code>Granules found: 10</code></pre>
</div>
Expand Down Expand Up @@ -12639,8 +12643,11 @@ <h3 data-anchor-id="plot">Plot</h3>
</div>
</section>

<section id="swot-level-2-nadir-altimeter-interim-geophysical-data-record-with-waveforms---ssha-version-1.0" class="level2">
<h2 data-anchor-id="swot-level-2-nadir-altimeter-interim-geophysical-data-record-with-waveforms---ssha-version-1.0">2. <strong>SWOT Level 2 Nadir Altimeter Interim Geophysical Data Record with Waveforms - SSHA Version 1.0</strong></h2>
<section id="swot-level-2-nadir-altimeter-interim-geophysical-data-record-with-waveforms---ssha-version-2.0" class="level2">
<h2 data-anchor-id="swot-level-2-nadir-altimeter-interim-geophysical-data-record-with-waveforms---ssha-version-2.0">2. <strong>SWOT Level 2 Nadir Altimeter Interim Geophysical Data Record with Waveforms - SSHA Version 2.0</strong></h2>
<p>Outlined below is a map of the different Nadir Data Products we host at PO.DAAC and their sub collections, and why you may choose one over the other. For more information, see the <a href="https://archive.podaac.earthdata.nasa.gov/podaac-ops-cumulus-docs/web-misc/swot_mission_docs/D-109532_SWOT_UserHandbook_20240502.pdf">SWOT Data User Handbook</a>.</p>
<p><img src="../../images/SWOT_LR_explanations/SWOT_LR_Nadir.png" class="img-fluid"></p>
<p>Once you’ve picked the dataset you want to look at, you can enter its shortname or subcollection below in the search query.</p>
<section id="access-files-without-any-downloads-to-your-running-instance-1" class="level3">
<h3 data-anchor-id="access-files-without-any-downloads-to-your-running-instance-1">Access Files without any Downloads to your running instance</h3>
<p>Here, we use the <code>earthaccess</code> Python library to search for and then load the data directly into xarray without downloading any files.</p>
Expand Down Expand Up @@ -16102,6 +16109,12 @@ <h3 data-anchor-id="plot-1">Plot</h3>
</div>
</section>
</section>
<section id="swot-level-2-radiometer-datasets" class="level2">
<h2 data-anchor-id="swot-level-2-radiometer-datasets">3. <strong>SWOT Level 2 Radiometer Datasets</strong></h2>
<p>Outlined below is a map of the different Radiometer Data Products we host at PO.DAAC, and why you may choose one over the other. For more information, see the <a href="https://archive.podaac.earthdata.nasa.gov/podaac-ops-cumulus-docs/web-misc/swot_mission_docs/D-109532_SWOT_UserHandbook_20240502.pdf">SWOT Data User Handbook</a>.</p>
<p><img src="../../images/SWOT_LR_explanations/SWOT_LR_Radiometer.png" class="img-fluid"></p>
<p>Once you’ve picked the dataset you want to look at, you can search and visualize this dataset similar to the above datasets.</p>
</section>
<section id="a-final-word" class="level2">
<h2 data-anchor-id="a-final-word">A final word…</h2>
<p>Accessing data completely from S3 and in memory are affected by various things.</p>
Expand Down
20 changes: 17 additions & 3 deletions notebooks/datasets/Localmachine_SWOT_Oceanography.html
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Expand Up @@ -1056,11 +1056,12 @@ <h2 id="toc-title">On this page</h2>
<li><a href="#cross-over-calibration-correction" id="toc-cross-over-calibration-correction" class="nav-link" data-scroll-target="#cross-over-calibration-correction">Cross Over Calibration Correction</a></li>
<li><a href="#plot" id="toc-plot" class="nav-link" data-scroll-target="#plot">Plot</a></li>
</ul></li>
<li><a href="#swot-level-2-nadir-altimeter-interim-geophysical-data-record-with-waveforms---ssha-version-1.0" id="toc-swot-level-2-nadir-altimeter-interim-geophysical-data-record-with-waveforms---ssha-version-1.0" class="nav-link" data-scroll-target="#swot-level-2-nadir-altimeter-interim-geophysical-data-record-with-waveforms---ssha-version-1.0">2. <strong>SWOT Level 2 Nadir Altimeter Interim Geophysical Data Record with Waveforms - SSHA Version 1.0</strong></a>
<li><a href="#swot-level-2-nadir-altimeter-interim-geophysical-data-record-with-waveforms---ssha-version-2.0" id="toc-swot-level-2-nadir-altimeter-interim-geophysical-data-record-with-waveforms---ssha-version-2.0" class="nav-link" data-scroll-target="#swot-level-2-nadir-altimeter-interim-geophysical-data-record-with-waveforms---ssha-version-2.0">2. <strong>SWOT Level 2 Nadir Altimeter Interim Geophysical Data Record with Waveforms - SSHA Version 2.0</strong></a>
<ul class="collapse">
<li><a href="#search-and-download-data-1" id="toc-search-and-download-data-1" class="nav-link" data-scroll-target="#search-and-download-data-1">Search and Download Data!</a></li>
<li><a href="#plot-1" id="toc-plot-1" class="nav-link" data-scroll-target="#plot-1">Plot</a></li>
</ul></li>
<li><a href="#swot-level-2-radiometer-datasets" id="toc-swot-level-2-radiometer-datasets" class="nav-link" data-scroll-target="#swot-level-2-radiometer-datasets">3. <strong>SWOT Level 2 Radiometer Datasets</strong></a></li>
<li><a href="#a-final-word" id="toc-a-final-word" class="nav-link" data-scroll-target="#a-final-word">A final word…</a></li>
</ul></li>
</ul>
Expand Down Expand Up @@ -1090,6 +1091,7 @@ <h2 class="anchored" data-anchor-id="summary">Summary</h2>
<ul>
<li>This is a subcollection of the parent collection: <code>SWOT_L2_NALT_IGDR_2.0</code></li>
</ul></li>
<li><strong>SWOT Level 2 Radiometer Data Products</strong> - overview of all</li>
</ol>
<p>We will download the data and load a time series made of multiple netCDF files into a single xarray dataset.</p>
<section id="requirements" class="level3">
Expand Down Expand Up @@ -1126,6 +1128,9 @@ <h3 class="anchored" data-anchor-id="earthdata-login">Earthdata Login</h3>
</section>
<section id="swot-level-2-karin-low-rate-sea-surface-height-data-product" class="level2">
<h2 class="anchored" data-anchor-id="swot-level-2-karin-low-rate-sea-surface-height-data-product">1. <strong>SWOT Level 2 KaRIn Low Rate Sea Surface Height Data Product</strong></h2>
<p>Outlined below is a map of the different KaRIn Data Products we host at PO.DAAC and their sub collections, and why you may choose one over the other. For more information, see the <a href="https://archive.podaac.earthdata.nasa.gov/podaac-ops-cumulus-docs/web-misc/swot_mission_docs/D-109532_SWOT_UserHandbook_20240502.pdf">SWOT Data User Handbook</a>.</p>
<p><img src="../../images/SWOT_LR_explanations/SWOT_LR_KaRIn.png" class="img-fluid"></p>
<p>Once you’ve picked the dataset you want to look at, you can enter its shortname or subcollection below in the search query.</p>
<section id="search-and-download-data" class="level3">
<h3 class="anchored" data-anchor-id="search-and-download-data">Search and Download Data!</h3>
<p>It’s time to find our data! Below we are searching using <code>earthaccess</code> Python library.</p>
Expand Down Expand Up @@ -12873,8 +12878,11 @@ <h3 data-anchor-id="plot">Plot</h3>
</div>
</section>

<section id="swot-level-2-nadir-altimeter-interim-geophysical-data-record-with-waveforms---ssha-version-1.0" class="level2">
<h2 data-anchor-id="swot-level-2-nadir-altimeter-interim-geophysical-data-record-with-waveforms---ssha-version-1.0">2. <strong>SWOT Level 2 Nadir Altimeter Interim Geophysical Data Record with Waveforms - SSHA Version 1.0</strong></h2>
<section id="swot-level-2-nadir-altimeter-interim-geophysical-data-record-with-waveforms---ssha-version-2.0" class="level2">
<h2 data-anchor-id="swot-level-2-nadir-altimeter-interim-geophysical-data-record-with-waveforms---ssha-version-2.0">2. <strong>SWOT Level 2 Nadir Altimeter Interim Geophysical Data Record with Waveforms - SSHA Version 2.0</strong></h2>
<p>Outlined below is a map of the different Nadir Data Products we host at PO.DAAC and their sub collections, and why you may choose one over the other. For more information, see the <a href="https://archive.podaac.earthdata.nasa.gov/podaac-ops-cumulus-docs/web-misc/swot_mission_docs/D-109532_SWOT_UserHandbook_20240502.pdf">SWOT Data User Handbook</a>.</p>
<p><img src="../../images/SWOT_LR_explanations/SWOT_LR_Nadir.png" class="img-fluid"></p>
<p>Once you’ve picked the dataset you want to look at, you can enter its shortname or subcollection below in the search query.</p>
<section id="search-and-download-data-1" class="level3">
<h3 data-anchor-id="search-and-download-data-1">Search and Download Data!</h3>
<p>Below we are searching using <code>earthaccess</code> Python library.</p>
Expand Down Expand Up @@ -16408,6 +16416,12 @@ <h3 data-anchor-id="plot-1">Plot</h3>
</div>
</section>
</section>
<section id="swot-level-2-radiometer-datasets" class="level2">
<h2 data-anchor-id="swot-level-2-radiometer-datasets">3. <strong>SWOT Level 2 Radiometer Datasets</strong></h2>
<p>Outlined below is a map of the different Radiometer Data Products we host at PO.DAAC, and why you may choose one over the other. For more information, see the <a href="https://archive.podaac.earthdata.nasa.gov/podaac-ops-cumulus-docs/web-misc/swot_mission_docs/D-109532_SWOT_UserHandbook_20240502.pdf">SWOT Data User Handbook</a>.</p>
<p><img src="../../images/SWOT_LR_explanations/SWOT_LR_Radiometer.png" class="img-fluid"></p>
<p>Once you’ve picked the dataset you want to look at, you can search and visualize this dataset in a workflow similar to the above datasets.</p>
</section>
<section id="a-final-word" class="level2">
<h2 data-anchor-id="a-final-word">A final word…</h2>
<p>Accessing data completely in memory are affected by various things. Tools like xarray make a lot of assumptions about how to open and read a file. Sometimes the internals don’t fit the xarray ‘mould’ and we need to continue to work with data providers and software providers to make these two sides work together. Level 2 data (non-gridded), specifically, suffers from some of the assumptions made.</p>
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