气候变化领域集成服务门户(CCPortal): Lead detection in Arctic sea ice from CryoSat-2: Quality assessment, lead area fraction and width distribution

CCPortal

DOI	10.5194/tc-9-1955-2015
	Lead detection in Arctic sea ice from CryoSat-2: Quality assessment, lead area fraction and width distribution
	Wernecke A.; Kaleschke L.
发表日期	2015
ISSN	19940416
卷号	9 期号:5
英文摘要	Leads cover only a small fraction of the Arctic sea ice but they have a dominant effect on the turbulent exchange between the ocean and the atmosphere. A supervised classification of CryoSat-2 measurements is performed by a comparison with visual MODIS scenes. For several parameters thresholds are optimized and tested in order to reproduce this prior classification. The maximum power of the waveform shows the best classification properties amongst them, including the pulse peakiness. The sea surface height is derived and its spread is clearly reduced for a classifier based on the maximum power compared to published ones. Lead area fraction estimates based on CryoSat-2 show a major fracturing event in the Beaufort Sea in 2013. The resulting Arctic-wide lead width distribution follows a power law with an exponent of 2.47 ± 0.04 for the winter seasons from 2011 to 2014, confirming and complementing a regional study based on a high-resolution SPOT image. © 2015 Author(s).
学科领域	CryoSat; lead; MODIS; qualitative analysis; sea ice; sea surface height; SPOT; threshold; waveform analysis; Arctic Ocean; Arctic Ocean; Beaufort Sea
语种	英语
scopus关键词	CryoSat; lead; MODIS; qualitative analysis; sea ice; sea surface height; SPOT; threshold; waveform analysis; Arctic Ocean; Arctic Ocean; Beaufort 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/119796
作者单位	Institute of Oceanography, University of Hamburg, Bundesstrasse 53, Hamburg, 20146, Germany
推荐引用方式 GB/T 7714	Wernecke A.,Kaleschke L.. Lead detection in Arctic sea ice from CryoSat-2: Quality assessment, lead area fraction and width distribution[J],2015,9(5).
APA	Wernecke A.,&Kaleschke L..(2015).Lead detection in Arctic sea ice from CryoSat-2: Quality assessment, lead area fraction and width distribution.Cryosphere,9(5).
MLA	Wernecke A.,et al."Lead detection in Arctic sea ice from CryoSat-2: Quality assessment, lead area fraction and width distribution".Cryosphere 9.5(2015).