Data Product Description

ATL14

Variable	Units	Description
`data_count`	counts	Weighted number of data points at each node in the DEM
`h`	meters	DEM surface height relative to WGS84 ellipsoid
`h_sigma`	meters	Estimated uncertainty in the DEM surface height
`ice_area`	meters²	Ice-covered area of each grid cell in the DEM
`misfit_rms`	meters	Root Mean Square of the residuals at each node in the DEM
`misfit_scaled_rms`	unitless	RMS residuals scaled by the uncertainty at each DEM node
`x`	meters	x-coordinate (easting) of the DEM cell centers
`y`	meters	y-coordinate (northing) of the DEM cell centers

Variable	Units	Description
`data_count`	counts	Weighted number of data points at each node in the grid
`delta_h`	meters	Height change relative to ATL14 DEM surface
`delta_h_sigma`	meters	Estimated uncertainty in the height change
`ice_area`	meters²	Ice-covered area of each grid cell at each time node
`misfit_rms`	meters	Root Mean Square of the misfit at each node in the grid
`misfit_scaled_rms`	unitless	RMS residuals scaled by the uncertainty at each grid node
`time`	days	Time at each node, in days since 2018-01-01:T00.00.00 UTC
`x`	meters	x-coordinate (easting) of the grid cell centers
`y`	meters	y-coordinate (northing) of the grid cell centers

Variable	Units	Description
`dhdt`	meters/year	Height change rate
`dhdt_sigma`	meters/year	Estimated uncertainty in the height change rate
`ice_area`	meters²	Ice-covered area of each grid cell for each time range
`time`	days	Midpoint time, in days since 2018-01-01:T00.00.00 UTC
`x`	meters	x-coordinate (easting) of the grid cell centers
`y`	meters	y-coordinate (northing) of the grid cell centers