Inter-comparison of satellite sea ice motion with drifting buoy data

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

In this study, three low-resolution and three medium-resolution ice motion products were compared to ice-tethered profiler (ITP) global positioning system (GPS) data over a 2 year period. The ice motion products were the Advanced Microwave Scanning Radiometer Earth Observing System (AMSR-E), merged Advanced Scatterometer + Special Sensor Microwave/Imager (ASCAT + SSM/I), advanced synthetic aperture radar (ASAR), and Advanced Very High Resolution Radiometer (AVHRR) ice motion data. The results show that the data quality of six satellite products is better than or close to expected values. The error distributions of the satellite ice motion generally have high kurtosis and heavy tails and are not normally distributed. Low-resolution ice motion generally shows large errors in the Fram Strait. AVHRR summer ice motion shows a larger bias, probably affected by inaccurate cloud masking, while the large errors in ASAR ice motion mainly occur due to occasional geolocation errors of near-real-time ASAR images used for ice motion retrieval. Inter-comparison between satellite ice motion products with different time intervals is also discussed.
Original languageEnglish
Pages (from-to)8741-8763
Number of pages23
JournalInternational Journal of Remote Sensing
Volume34
Issue number24
Early online date15 Oct 2013
DOIs
Publication statusPublished - 2013
Externally publishedYes

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data buoy
sea ice
ice
synthetic aperture radar
AVHRR
ASCAT
comparison
SSM-I
profiler
EOS
data quality
radiometer
strait
GPS

Cite this

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title = "Inter-comparison of satellite sea ice motion with drifting buoy data",
abstract = "In this study, three low-resolution and three medium-resolution ice motion products were compared to ice-tethered profiler (ITP) global positioning system (GPS) data over a 2 year period. The ice motion products were the Advanced Microwave Scanning Radiometer Earth Observing System (AMSR-E), merged Advanced Scatterometer + Special Sensor Microwave/Imager (ASCAT + SSM/I), advanced synthetic aperture radar (ASAR), and Advanced Very High Resolution Radiometer (AVHRR) ice motion data. The results show that the data quality of six satellite products is better than or close to expected values. The error distributions of the satellite ice motion generally have high kurtosis and heavy tails and are not normally distributed. Low-resolution ice motion generally shows large errors in the Fram Strait. AVHRR summer ice motion shows a larger bias, probably affected by inaccurate cloud masking, while the large errors in ASAR ice motion mainly occur due to occasional geolocation errors of near-real-time ASAR images used for ice motion retrieval. Inter-comparison between satellite ice motion products with different time intervals is also discussed.",
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Inter-comparison of satellite sea ice motion with drifting buoy data. / Hwang, Byongjun.

In: International Journal of Remote Sensing, Vol. 34, No. 24, 2013, p. 8741-8763.

Research output: Contribution to journalArticle

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AU - Hwang, Byongjun

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