气候变化领域集成服务门户(CCPortal): Retrieval of sea ice drift in the Fram Strait based on data from Chinese satellite HaiYang (HY-1D)

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DOI	10.5194/tc-18-1419-2024
	Retrieval of sea ice drift in the Fram Strait based on data from Chinese satellite HaiYang (HY-1D)
	Lu, Dunwang; Liu, Jianqiang; Shi, Lijian; Zeng, Tao; Cheng, Bin; Wu, Suhui; Wang, Manman
发表日期	2024
ISSN	1994-0416
EISSN	1994-0424
起始页码	18
结束页码	3
卷号	18 期号:3
英文摘要	Melting of sea ice in the Arctic has accelerated due to global warming. The Fram Strait (FS) serves as a crucial pathway for sea ice export from the Arctic to the North Atlantic Ocean. Monitoring sea ice drift (SID) in the FS provides insight into how Arctic sea ice responds to the climate change. The SID has been retrieved from Sentinel-1 synthetic aperture radar (SAR), Advanced Very High Resolution Radiometer (AVHRR), Moderate Resolution Imaging Spectroradiometer (MODIS), and Advanced Microwave Scanning Radiometer for EOS (AMSR-E), and further exploration is needed for the retrieval of SID using optical imagery. In this paper, we retrieve SID in the FS using the Chinese HaiYang1-D (HY-1D) satellite equipped with the Coastal Zone Imager (CZI). A multi-template matching technique is employed to calculate the cross-correlation, and subpixel estimation is used to locate displacement vectors from the cross-correlation matrix. The dataset covering March to May 2021 was divided into hourly and daily intervals for analysis, and validation was performed using Copernicus Marine Environment Monitoring Service (CMEMS) SAR-based product and International Arctic Buoy Programme (IABP) buoy. A comparison with the CMEMS SID product revealed a high correlation with the daily interval dataset; however, due to the spatial and temporal variability in the sea ice motion, differences are observed with the hourly interval dataset. Additionally, validation with the IABP buoys yielded a velocity bias of - 0.005 m s - 1 and RMSE of 0.031 m s - 1 for the daily interval dataset, along with a flow direction bias of 0.002 rad and RMSE of 0.009 rad, respectively. For the hourly interval dataset, the velocity bias was negligible (0 m s - 1 ), with a RMSE of 0.036 m s - 1 , while the flow direction bias was 0.003 rad, with a RMSE of 0.010 rad. In addition, during the validation with buoys, we found that the accuracy of retrieving the SID flow direction is distinctly interrelated with the sea ice displacement.
语种	英语
WOS研究方向	Physical Geography ; Geology
WOS类目	Geography, Physical ; Geosciences, Multidisciplinary
WOS记录号	WOS:001192378500001
来源期刊	CRYOSPHERE
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/304371
作者单位	National Marine Environmental Forecasting Center; National Satellite Ocean Application Service; Ministry of Natural Resources of the People's Republic of China; Finnish Meteorological Institute
推荐引用方式 GB/T 7714	Lu, Dunwang,Liu, Jianqiang,Shi, Lijian,et al. Retrieval of sea ice drift in the Fram Strait based on data from Chinese satellite HaiYang (HY-1D)[J],2024,18(3).
APA	Lu, Dunwang.,Liu, Jianqiang.,Shi, Lijian.,Zeng, Tao.,Cheng, Bin.,...&Wang, Manman.(2024).Retrieval of sea ice drift in the Fram Strait based on data from Chinese satellite HaiYang (HY-1D).CRYOSPHERE,18(3).
MLA	Lu, Dunwang,et al."Retrieval of sea ice drift in the Fram Strait based on data from Chinese satellite HaiYang (HY-1D)".CRYOSPHERE 18.3(2024).