4.6. AMSR2 GAASP Level 2 Reader

The AMSR-2 L2 GAASP reader is for reading NetCDF4 from the NOAA GAASP software.

Product Name | Description
Rain_Rate | Surface Rain Rate
CLW		Cloud Liquid Water
SST		Sea Surface Temperature
TPW		Total Precipitable Water
WSPD		Wind Speed
Snow_Cover		Snow Cover (Snow Surface Flag)
SWE		Snow Water Equivalent
Snow_Depth		Snow Depth
Soil_Moisture		Soil Moisture
NASA_Team_2_Ice_Concentration_NH		Ice Concentration (Northern Hemisphere)

4.6.1. Command Line Arguments

usage: polar2grid.sh -r amsr2_l2_gaasp -w <writer> [-h] [--filter-wind-speed | --no-filter-wind-speed]

4.6.1.1. AMSR2 L2 GAASP Reader

--filter-wind-speed, --no-filter-wind-speed

Filter ‘WSPD’ variable using the ‘WSPD_QC’ variable. Enabled by default. Use ‘–no-filter-wind-speed’ to disable.

Default: True

Examples:

polar2grid.sh -r amsr2_l2_gaasp -w geotiff -f <path to files>/<list of files>

polar2grid.sh -r amsr2_l2_gaasp -w geotiff -h

polar2grid.sh -r amsr2_l2_gaasp -w geotiff --list-products -f gaasp/*.nc

polar2grid.sh -r amsr2_l2_gaasp -w geotiff -p SST WSPD CLW TPW --num-workers 8 -f gaasp/AMSR2-OCEAN*.nc

polar2grid.sh -r amsr2_l2_gaasp -w geotiff -g polar_alaska -p SWE Snow_Depth Soil_Moisture --fill-value 0 -f  AMSR2-SNOW_v2r2_GW1_s202601292227100_e202601292237440_c202601292245210.nc AMSR2-SOIL_v2r2_GW1_s202601292227100_e202601292237440_c202601292245210.nc

polar2grid.sh -r amsr2_l2_gaasp -w hdf5 --add-geolocation --dtype float32 -p Rain_Rate -f AMSR2-PRECIP_v2r2_GW1_s202602020736030_e202602020746510_c202602020759490.nc