Published September 30, 2022 | Version 2.1
Dataset Open

ICESat-2 Arctic Sea Ice Surface Topography from the University of Maryland-Ridge Detection Algorithm: April 2019, 2020, and 2021

Creators

  • 1. Earth System Science Interdisciplinary Center, University of Maryland, College Park, MD, USA
  • 2. Department of Geographical Science, University of Maryland, College Park, MD, USA

Description

This dataset is derived from the ICESat-2 (IS-2) Global Geolocated Photon Height Product (ATL03) using the University of Maryland-Ridge Detection Algorithm (UMD-RDA). The UMD-RDA is applied to ATL03 on a per-shot basis, nominally resulting in elevation measurements at IS-2's maximum along-track resolution of ~0.7 m. From these elevation measurements, the UMD-RDA can measure various sea ice parameters including, but not limited to, individual ridge crests and their respective sail heights, the distance between ridges, and sea ice surface roughness.

********Changes in Version 2********

Version 2 includes a column for time (seconds since 2018-01-01) in all parameter files in addition to longitude, latitude, and parameter value.

The full resolution UMD-RDA derived elevation data was too large to host here, but is available upon request. If you need a particular track or segment for your research please contact me with your request by email: kduncan at umd dot edu

Notes

This study is supported under NASA Cryosphere Program Grant: 80NSSC20K0966

Files

201904_UMDRDA_v02_25km_SurfaceRoughness.txt

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Additional details

References

  • Farrell, S. L., Duncan K., Buckley, E. M., Richter-Menge, J., & Li, R. (2020) Mapping Sea Ice Surface Topography in High Fidelity with ICESat-2. Geophys. Res. Lett., 47, e2020GL090708. doi:10.1029/2020GL090708