globalchange  > 气候变化与战略
DOI: 10.5194/tc-14-251-2020
论文题名:
Brief communication: Conventional assumptions involving the speed of radar waves in snow introduce systematic underestimates to sea ice thickness and seasonal growth rate estimates
作者: Mallett R.D.C.; Lawrence I.R.; Stroeve J.C.; Landy J.C.; Tsamados M.
刊名: Cryosphere
ISSN: 19940416
出版年: 2020
卷: 14, 期:1
起始页码: 251
结束页码: 260
语种: 英语
英文关键词: calibration ; CryoSat ; estimation method ; ice thickness ; model validation ; radar ; satellite altimetry ; scattering ; sea ice ; snow ; wave propagation ; wave velocity ; Arctic
英文摘要: Pan-Arctic sea ice thickness has been monitored over recent decades by satellite radar altimeters such as CryoSat-2, which emits Ku-band radar waves that are assumed in publicly available sea ice thickness products to penetrate overlying snow and scatter from the ice-snow interface. Here we examine two expressions for the time delay caused by slower radar wave propagation through the snow layer and related assumptions concerning the time evolution of overlying snow density. Two conventional treatments introduce systematic underestimates of up to 15 cm into ice thickness estimates and up to 10 cm into thermodynamic growth rate estimates over multi-year ice in winter. Correcting these biases would impact a wide variety of model projections, calibrations, validations and reanalyses. © 2020 Author(s).
Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/164529
Appears in Collections:气候变化与战略

Files in This Item:

There are no files associated with this item.


作者单位: Centre for Polar Observation and Modelling, Earth Sciences, University College London, London, United Kingdom; National Snow and Ice Data Center, University of Colorado, Boulder, CO, United States; Centre for Earth Observation Science, University of Manitoba, Winnipeg, MB, Canada; School of Geographical Sciences, University of Bristol, Bristol, United Kingdom

Recommended Citation:
Mallett R.D.C.,Lawrence I.R.,Stroeve J.C.,et al. Brief communication: Conventional assumptions involving the speed of radar waves in snow introduce systematic underestimates to sea ice thickness and seasonal growth rate estimates[J]. Cryosphere,2020-01-01,14(1)
Service
Recommend this item
Sava as my favorate item
Show this item's statistics
Export Endnote File
Google Scholar
Similar articles in Google Scholar
[Mallett R.D.C.]'s Articles
[Lawrence I.R.]'s Articles
[Stroeve J.C.]'s Articles
百度学术
Similar articles in Baidu Scholar
[Mallett R.D.C.]'s Articles
[Lawrence I.R.]'s Articles
[Stroeve J.C.]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[Mallett R.D.C.]‘s Articles
[Lawrence I.R.]‘s Articles
[Stroeve J.C.]‘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.