This LMI (internal layer) thickness data from SIR (T and L lines are in separate files)
is in support of the following publication:

Indrani Das, Laurie Padman, Robin E. Bell, Helen A. Fricker, Kirsty J. Tinto, Christina L. Hulbe, 
Christine S. Siddoway, Tejendra Dhakal, Nicholas P. Frearson, Cyrille Mosbeux, S. Isabel Cordero, 
Matthew R. Siegfried. Multi-decadal basal melt rates and structure of the Ross Ice Shelf, Antarctica 
using airborne ice penetrating radar. Journal of Geophysical Research, Earth Surface 2020.

The ascii files contains thickness values form all three ROSETTA seasons and has three columns: latitude, longitude 
and LMI ice thickness (m) from SIR radar. 

SIR_T_lines_Internal_LayerLMI_Thickness ---T lines
SIR_L_lines_Internal_LayerLMI_Thickness ---L lines

The thickness picks provided from the SIR radar has been extensively cleaned for outliers and any thickness>300m has been 
discarded. 

For questions, please contact Indrani Das at indrani@ldeo.columbia.edu.