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Appendix A: Cell Methods

In the Units column, u indicates the units of the physical quantity before the method is applied.

Table E.1. Cell Methods

cell_methods	Units	Description
point	u	The data values are representative of points in space or time (instantaneous). This is the default method for a quantity that is intensive with respect to the specified dimension.
sum	u	The data values are representative of a sum or accumulation over the cell. This is the default method for a quantity that is extensive with respect to the specified dimension.
maximum	u	Maximum
maximum_absolute_value	u	Maximum absolute value
median	u	Median
mid_range	u	Average of maximum and minimum
minimum	u	Minimum
minimum_absolute_value	u	Minimum absolute value
mean	u	Mean (average value)
mean_absolute_value	u	Mean absolute value
mean_of_upper_decile	u	Mean of the upper group of data values defined by the upper tenth of their distribution
mode	u	Mode (most common value)
range	u	Absolute difference between maximum and minimum
root_mean_square	u	Root mean square (RMS)
standard_deviation	u	Standard deviation
sum_of_squares	u2	Sum of squares
variance	u2	Variance