Evaluation of Operation IceBridge quick-look snow depth estimates on sea ice

King, Joshua, Howell, Stephen, Derksen, Chris, Rutter, Nick, Toose, Peter, Beckers, Justin, Haas, Christian, Kurtz, Nathan and Richter-Menge, Jacqueline (2015) Evaluation of Operation IceBridge quick-look snow depth estimates on sea ice. Geophysical Research Letters, 42 (21). pp. 9302-9310. ISSN 1944-8007

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Official URL: http://dx.doi.org/10.1002/2015GL066389

Abstract

We evaluate Operation IceBridge (OIB) ‘quick-look’ (QL) snow depth on sea ice retrievals using in situ measurements taken over immobile first-year ice (FYI) and multi-year ice (MYI) during March of 2014. Good agreement was found over undeformed FYI (-4.5 cm mean bias) with reduced agreement over deformed FYI (-6.6 cm mean bias). Over MYI, the mean bias was -5.7 cm but 54% of retrievals were discarded by the OIB retrieval process as compared to only 10% over FYI. Footprint scale analysis revealed a root mean square error (RMSE) of 6.2 cm over undeformed FYI with RMSE of 10.5 cm and 17.5 cm in the more complex deformed FYI and MYI environments. Correlation analysis was used to demonstrate contrasting retrieval uncertainty associated with spatial aggregation and ice surface roughness.

Item Type: Article
Uncontrolled Keywords: Snow on sea ice; Snow; Sea Ice; Operation IceBridge; Radar; Arctic
Subjects: F800 Physical and Terrestrial Geographical and Environmental Sciences
Department: Faculties > Engineering and Environment > Geography and Environmental Sciences
Depositing User: Nick Rutter
Date Deposited: 16 Oct 2015 12:01
Last Modified: 13 May 2017 23:05
URI: http://nrl.northumbria.ac.uk/id/eprint/24012

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