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

Joshua King, Stephen Howell, Chris Derksen, Nick Rutter, Peter Toose, Justin Beckers, Christian Haas, Nathan Kurtz, Jacqueline Richter-Menge

Research output: Contribution to journalArticlepeer-review

25 Citations (Scopus)
7 Downloads (Pure)

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.
Original languageEnglish
Pages (from-to)9302-9310
JournalGeophysical Research Letters
Volume42
Issue number21
Early online date14 Oct 2015
DOIs
Publication statusPublished - 16 Nov 2015

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