View : 34 Download: 8

Connecting early summer cloud-controlled sunlight and late summer sea ice in the Arctic

Title
Connecting early summer cloud-controlled sunlight and late summer sea ice in the Arctic
Authors
ChoiY.-S.KimB.-M.HurS.-K.S.-J.J.-H.HoC.-H.
Ewha Authors
최용상
SCOPUS Author ID
최용상scopus
Issue Date
2014
Journal Title
Journal of Geophysical Research: Atmospheres
ISSN
2169-897XJCR Link
Citation
vol. 119, no. 19, pp. 11087 - 11099
Keywords
Arctic sea icesolar radiation
Publisher
Blackwell Publishing Ltd
Indexed
SCI; SCIE; SCOPUS WOS scopus
Abstract
This study demonstrates that absorbed solar radiation (ASR) at the top of the atmosphere in early summer (May-July) plays a precursory role in determining the Arctic sea ice concentration (SIC) in late summer (August-October). The monthly ASR anomalies are obtained over the Arctic Ocean (65 °N-90 °N) from the Clouds and the Earth's Radiant Energy System during 2000-2013. The ASR changes primarily with cloud variation. We found that the ASR anomaly in early summer is significantly correlated with the SIC anomaly in late summer (correlation coefficient, r ≈ -0.8 with a lag of 1 to 4 months). The region exhibiting high (low) ASR anomalies and low (high) SIC anomalies varies yearly. The possible reason is that the solar heat input to ice is most effectively affected by the cloud shielding effect under the maximum TOA solar radiation in June and amplified by the ice-albedo feedback. This intimate delayed ASR-SIC relationship is not represented in most of current climate models. Rather, the models tend to over-emphasize internal sea ice processes in summer. © 2014. American Geophysical Union. All Rights Reserved.
DOI
10.1002/2014JD022013
Appears in Collections:
엘텍공과대학 > 환경공학전공 > Journal papers
Files in This Item:
001.pdf(2.42 MB)Download
Export
RIS (EndNote)
XLS (Excel)
XML


qrcode

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

BROWSE