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

被引：31

作者：

King, Joshua ^{[1
]}

Howell, Stephen ^{[1
]}

Derksen, Chris ^{[1
]}

Rutter, Nick ^{[2
]}

Toose, Peter ^{[1
]}

Beckers, Justin F. ^{[3
]}

Haas, Christian ^{[3
,4
]}

Kurtz, Nathan ^{[5
]}

Richter-Menge, Jacqueline ^{[6
]}

机构：

[1] Environm Canada, Climate Res Div, Toronto, ON, Canada

[2] Northumbria Univ, Dept Geog, Newcastle Upon Tyne NE1 8ST, Tyne & Wear, England

[3] Univ Alberta, Dept Earth & Atmospher Sci, Edmonton, AB, Canada

[4] York Univ, Dept Earth & Space Sci & Engn, Toronto, ON M3J 2R7, Canada

[5] NASA, Goddard Space Flight Ctr, Hydrospher & Biospher Sci Lab, Greenbelt, MD 20771 USA

[6] Engn Res & Dev Ctr, Cold Reg Res & Engn Lab, Hanover, NH USA

来源：

GEOPHYSICAL RESEARCH LETTERS | 2015年 / 42卷 / 21期

关键词：

THICKNESS RETRIEVAL; RADAR; CRYOSAT-2; FREEBOARD; BAND; IMPACT; SHEBA;

D O I：

10.1002/2015GL066389

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

We evaluate Operation IceBridge (OIB) "quick-look" snow depth on sea ice retrievals using in situ measurements taken over immobile first-year ice (FYI) and multiyear 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.

引用

页码：9302 / 9310

页数：9

共 49 条

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[3] Snow depth of the Weddell and Bellingshausen sea ice covers from IceBridge surveys in 2010 and 2011: An examination
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Maksym, T.
JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS, 2014, 119 (07) : 4141 - 4167
[4] Intercomparison of snow depth retrievals over Arctic sea ice from radar data acquired by Operation IceBridge
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Kurtz, Nathan T.
Brucker, Ludovic
Ivanoff, Alvaro
Newman, Thomas
Farrell, Sinead L.
King, Joshua
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Webster, Melinda A.
Paden, John
Leuschen, Carl
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Harbeck, Jeremy
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CRYOSPHERE, 2017, 11 (06): : 2571 - 2593
[5] A First Assessment of IceBridge Snow and Ice Thickness Data Over Arctic Sea Ice
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Kurtz, Nathan
Connor, Laurence N.
Elder, Bruce C.
Leuschen, Carlton
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[6] A Textural Approach to Improving Snow Depth Estimates in the Weddell Sea
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[7] Arctic Sea Ice Freeboard Estimation and Variations From Operation IceBridge
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IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING, 2022, 60
[8] Arctic sea ice freeboard from IceBridge acquisitions in 2009: Estimates and comparisons with ICESat
Kwok, R.
Cunningham, G. F.
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Krabill, W. B.
JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS, 2012, 117
[9] Arctic sea ice freeboard from AltiKa and comparison with CryoSat-2 and Operation IceBridge
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[10] An Attempt to Improve Snow Depth Retrieval Using Satellite Microwave Radiometry for Rough Antarctic Sea Ice
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Ozsoy, Burcu
REMOTE SENSING, 2019, 11 (19)

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