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SAR Doppler Calibration and Application for Sea Ice Drift Estimation

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Title
SAR Doppler Calibration and Application for Sea Ice Drift Estimation
Other Titles
SAR 도플러 검교정과 해빙 이동 측정에의 응용
Authors
Park, Jeong-Won
Hansen, Morten
Korosov, Anton
Kim, Hyun-cheol
Issue Date
2019
Citation
Park, Jeong-Won, et al. 2019. SAR Doppler Calibration and Application for Sea Ice Drift Estimation. IEEE International Geosciences and Remote Sensing Symposium. Pacifico Yokohama. 2019.07.29~2019.08.02.
Abstract
We propose a Doppler calibration scheme that effectively removes errors come from attitude anomaly and antenna mispointing which are generic for all SAR sensors. The resulting calibrated Doppler signal of the entire ENVISAT ASAR ScanSAR data for one repeat cycle (35 days) showed well-balanced inter-swath measurements and largely reduced uncertainty without relying on bias correction using land reference. Sea ice drift in the Fram Strait was derived using both the offset-tracking and the Doppler estimation. An intercomparison of the time-averaged velocities showed overall high consistency with RMSE of 0.15 m/s.
URI
https://repository.kopri.re.kr/handle/201206/12637
Conference Name
IEEE International Geosciences and Remote Sensing Symposium
Conference Place
Pacifico Yokohama
Conference Date
2019.07.29~2019.08.02
Appears in Collections  
2019-2019, Research on analytical technique for satellite observation of Arctic sea ice (19-19) / Kim, Hyun-cheol (PE19120)
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