CPOM->Dual-altimeter Snow Thickness

Data Description

A full description of the data processing and uncertainties is given in Lawrence et al. (2018).

The data consists of Dual-altimeter Snow Thickness (DuST), gridded on a 1.5° longitude x 0.5° latitude grid and stored as .txt files with columns: longitude, latitude, snow depth (m).

For the CryoSat-2 vs. AltiKa DuST product, snow depth is monthly averaged and the month is given in the file name.

For the ICESat vs. Envisat DuST product, snow depth is averaged per ICESat laser period, and the corresponding dates are given in the file names.

Note there is no data above 81.5° North due the upper latitude of AltiKa / Envisat.

Data is packaged as a single compressed tar file containing the following files:

CS2_AltiKa_DuST_gridded/
YYYYMM_snowdepth.txt
YYYY=year from 2013..2018
MM= month

ICESat_Envisat_DuST_gridded/

2003-02-20_to_2003-03-29_snowdepth.txt
2003-09-25_to_2003-11-19_snowdepth.txt
2004-02-17_to_2004-03-21_snowdepth.txt
2004-05-18_to_2004-06-21_snowdepth.txt
2004-10-03_to_2004-11-08_snowdepth.txt
2005-02-17_to_2005-03-24_snowdepth.txt
2005-05-20_to_2005-06-23_snowdepth.txt
2005-10-21_to_2005-11-24_snowdepth.txt
2006-02-22_to_2006-03-27_snowdepth.txt
2006-05-24_to_2006-06-26_snowdepth.txt
2006-10-25_to_2006-11-27_snowdepth.txt
2007-03-12_to_2007-04-14_snowdepth.txt
2007-10-02_to_2007-11-05_snowdepth.txt
2008-02-17_to_2008-03-21_snowdepth.txt
2008-10-04_to_2008-10-19_snowdepth.txt

Reference

If you use the DuST data, please include the following acknowledgment and reference in your work:

Snow depth data were provided by the Centre for Polar Observation and Modelling, University College London (www.cpom.ucl.ac.uk/DuST) [Lawrence et al. (2018)]

Lawrence, I., Tsamados, M., Stroeve, J., Armitage, T., and Ridout, A.: Estimating snow depth over Arctic sea ice from calibrated dual-frequency radar freeboards, The Cryosphere Discuss., https://doi.org/10.5194/tc-2018-54, in review, 2018.

Data Access

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