globalchange  > 影响、适应和脆弱性
DOI: 10.5194/tc-9-1797-2015
Scopus记录号: 2-s2.0-84941643874
论文题名:
Inter-comparison and evaluation of sea ice algorithms: Towards further identification of challenges and optimal approach using passive microwave observations
作者: Ivanova N; , Pedersen L; T; , Tonboe R; T; , Kern S; , Heygster G; , Lavergne T; , Sørensen A; , Saldo R; , Dybkjær G; , Brucker L; , Shokr M
刊名: Cryosphere
ISSN: 19940416
出版年: 2015
卷: 9, 期:5
起始页码: 1797
结束页码: 1817
语种: 英语
英文关键词: algorithm ; calibration ; microwave radiometer ; polar region ; sea ice ; sea surface ; seasonal variation ; sensitivity analysis ; water vapor
英文摘要: Sea ice concentration has been retrieved in polar regions with satellite microwave radiometers for over 30 years. However, the question remains as to what is an optimal sea ice concentration retrieval method for climate monitoring. This paper presents some of the key results of an extensive algorithm inter-comparison and evaluation experiment. The skills of 30 sea ice algorithms were evaluated systematically over low and high sea ice concentrations. Evaluation criteria included standard deviation relative to independent validation data, performance in the presence of thin ice and melt ponds, and sensitivity to error sources with seasonal to inter-annual variations and potential climatic trends, such as atmospheric water vapour and water-surface roughening by wind. A selection of 13 algorithms is shown in the article to demonstrate the results. Based on the findings, a hybrid approach is suggested to retrieve sea ice concentration globally for climate monitoring purposes. This approach consists of a combination of two algorithms plus dynamic tie points implementation and atmospheric correction of input brightness temperatures. The method minimizes inter-sensor calibration discrepancies and sensitivity to the mentioned error sources. © Author(s) 2015.
Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/75247
Appears in Collections:影响、适应和脆弱性
气候变化与战略

Files in This Item:

There are no files associated with this item.


作者单位: Nansen Environmental and Remote Sensing Center, Bergen, Norway; Danish Meteorological Institute, Copenhagen, Denmark; University of Hamburg, Hamburg, Germany; University of Bremen, Bremen, Germany; Norwegian Meteorological Institute, Oslo, Norway; Technical University of Denmark, Lyngby, Denmark; NASA Goddard Space Flight Center, Cryospheric Sciences Laboratory, Code 615, Greenbelt, MD, United States; Universities Space Research Association, Goddard Earth Sciences Technology and Research Studies and Investigations, Columbia, MD, United States; Environment CanadaON, Canada

Recommended Citation:
Ivanova N,, Pedersen L,T,et al. Inter-comparison and evaluation of sea ice algorithms: Towards further identification of challenges and optimal approach using passive microwave observations[J]. Cryosphere,2015-01-01,9(5)
Service
Recommend this item
Sava as my favorate item
Show this item's statistics
Export Endnote File
Google Scholar
Similar articles in Google Scholar
[Ivanova N]'s Articles
[, Pedersen L]'s Articles
[T]'s Articles
百度学术
Similar articles in Baidu Scholar
[Ivanova N]'s Articles
[, Pedersen L]'s Articles
[T]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[Ivanova N]‘s Articles
[, Pedersen L]‘s Articles
[T]‘s Articles
Related Copyright Policies
Null
收藏/分享
所有评论 (0)
暂无评论
 

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.