GRL_shallow_melting

Full description

Data underlying the figures in "Antarctic Ice Shelves Lose Most of Their Mass From Shallow Depths" published in Geophysical Research Letters.

Richter_depth.csv Rignot_depth.csv
- Data underlying Fig. 2
- zice_bins is ice draft depth in m

m.nc temp_surf.nc
- Data underlying Fig. 1
- temp is potential temperature in degC of the uppermost sigma layer
- m is ice shelf melt rate in m/s (negative denotes refreezing)
- both are maps of 2007 mean

ts_vals2_sec_cavity.npy salt_centres.csv temp_centres.csv
- Data underlying Fig. 3
- the numpy file contains an archive of numpy arrays - each array represents the cavity conditions of one sector
- these arrays are 2d with salt in x and temp in y direction
- the values represent the mean depth of each T/S combination in m
- the csv files are 1D arrays containing the axis values; potential temperature in degC; practical salinity

depth_melt_evo.npy shallow_temp_evo.npy
- Data underlying Fig. 4
- the numpy files contain archives of xarray arrays - each array representing a certain depth range in
m
- the ocean_time attribute is faulty, stating year 2014
- all values are for 2007 and the arrays start with May
- ice shelf melt rate in m/yr; potential temperature in degC