气候变化领域集成服务门户(CCPortal): Comparing C- and L-band SAR images for sea ice motion estimation

CCPortal

DOI	10.5194/tc-9-357-2015
	Comparing C- and L-band SAR images for sea ice motion estimation
	Lehtiranta J.; Siiriä S.; Karvonen J.
发表日期	2015
ISSN	19940416
卷号	9 期号:1
英文摘要	Pairs of consecutive C-band synthetic-aperture radar (SAR) images are routinely used for sea ice motion estimation. The L-band radar has a fundamentally different character, as its longer wavelength penetrates deeper into sea ice. L-band SAR provides information on the seasonal sea ice inner structure in addition to the surface roughness that dominates C-band images. This is especially useful in the Baltic Sea, which lacks multiyear ice and icebergs, known to be confusing targets for L-band sea ice classification. In this work, L-band SAR images are investigated for sea ice motion estimation using the well-established maximal cross-correlation (MCC) approach. This work provides the first comparison of L-band and C-band SAR images for the purpose of motion estimation. The cross-correlation calculations are hardware accelerated using new OpenCL-based source code, which is made available through the author's web site. It is found that L-band images are preferable for motion estimation over C-band images. It is also shown that motion estimation is possible between a C-band and an L-band image using the maximal cross-correlation technique. © Author(s) 2015.
学科领域	estimation method; ice movement; iceberg; image analysis; sea ice; surface roughness; synthetic aperture radar; Atlantic Ocean; Baltic Sea
语种	英语
scopus关键词	estimation method; ice movement; iceberg; image analysis; sea ice; surface roughness; synthetic aperture radar; Atlantic Ocean; Baltic Sea
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/119953
作者单位	Finnish Meteorological Institute, Marine Research Programme, Helsinki, PB 503 00101, Finland
推荐引用方式 GB/T 7714	Lehtiranta J.,Siiriä S.,Karvonen J.. Comparing C- and L-band SAR images for sea ice motion estimation[J],2015,9(1).
APA	Lehtiranta J.,Siiriä S.,&Karvonen J..(2015).Comparing C- and L-band SAR images for sea ice motion estimation.Cryosphere,9(1).
MLA	Lehtiranta J.,et al."Comparing C- and L-band SAR images for sea ice motion estimation".Cryosphere 9.1(2015).