A comparison between Envisat and ICESat sea ice thickness in the Southern Ocean

Wang, Jinfei; Min, Chao; Ricker, Robert; Shi, Qian; Han, Bo; Hendricks, Stefan; Wu, Renhao; Yang, Qinghua

doi:https://doi.org/10.5194/tc-16-4473-2022

Articles | Volume 16, issue 10

https://doi.org/10.5194/tc-16-4473-2022

© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.

Special issue:

The Weddell Sea and the ocean off Dronning Maud Land: unique...

https://doi.org/10.5194/tc-16-4473-2022

© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 16, issue 10

Research article

|

21 Oct 2022

Research article |

| 21 Oct 2022

A comparison between Envisat and ICESat sea ice thickness in the Southern Ocean

Jinfei Wang, Chao Min, Robert Ricker, Qian Shi, Bo Han, Stefan Hendricks, Renhao Wu, and Qinghua Yang

Supplement

https://doi.org/10.5194/tc-16-4473-2022-supplement

Data sets

ESA Sea Ice Climate Change Initiative (Sea_Ice_cci): Southern hemisphere sea ice thickness from the Envisat satellite on a monthly grid (L3C) v2.0 Stefan Hendricks, Stephan Paul, and Eero Rinne https://doi.org/10.5285/b1f1ac03077b4aa784c5a413a2210bf5

Antarctic sea-ice thickness retrieval from ICESat: Inter-comparison of different approaches (https://www.cen.uni-hamburg.de/en/icdc/data/restricted-access/esa-cci-antarctic-sea-ice-thickness.html) Stefan Kern, Burcu Ozsoy-Çiçek, and Anthony P. Worby https://doi.org/10.3390/rs8070538

Sea ice draft measured by upward looking sonars in the Weddell Sea (Antarctica) Axel Behrendt, Wolfgang Dierking, Eberhard Fahrbach, and Hannelore Witte https://doi.org/10.1594/PANGAEA.785565

Polar Pathfinder Daily 25 km EASE-Grid Sea Ice Motion Vectors, Version 4 Mark Tschudi, Walter Meier, J. Stewart, Charles Fowler, and Jim Maslanik https://doi.org/10.5067/INAWUWO7QH7B

Snow Depth Distribution Over Sea Ice in the Southern Ocean from Satellite Passive Microwave Data, in Antarctic Sea Ice: Physical Processes, Interactions and Variability (https://www.cen.uni-hamburg.de/en/icdc/data/restricted-access/esa-cci-antarctic-snow) Thorsten Markus and Donald J. Cavalieri https://doi.org/10.1029/AR074p0019

Short summary

The differences between Envisat and ICESat sea ice thickness (SIT) reveal significant temporal and spatial variations. Our findings suggest that both overestimation of Envisat sea ice freeboard, potentially caused by radar backscatter originating from inside the snow layer, and the AMSR-E snow depth biases and sea ice density uncertainties can possibly account for the differences between Envisat and ICESat SIT.