globalchange  > 气候减缓与适应
DOI: 10.1029/2018JC013786
Scopus记录号: 2-s2.0-85050406133
论文题名:
Shipboard Observations of the Meteorology and Near-Surface Environment During Autumn Freezeup in the Beaufort/Chukchi Seas
作者: Persson P.O.G.; Blomquist B.; Guest P.; Stammerjohn S.; Fairall C.; Rainville L.; Lund B.; Ackley S.; Thomson J.
刊名: Journal of Geophysical Research: Oceans
ISSN: 21699275
出版年: 2018
卷: 123, 期:7
起始页码: 4930
结束页码: 4969
语种: 英语
英文关键词: air-ice-ocean characterization ; air-ice-ocean interactions ; autumn freezeup
英文摘要: The collection and processing of shipboard air, ice, and ocean measurements from the Sea State field campaign in the Beaufort/Chukchi Seas in autumn 2015 are described and the data used to characterize the near-surface freezeup environment. The number of parameters measured or derived is large and the location and time of year are unique. Analysis was done of transits through the new, growing ice and of ice edge periods. Through differential surface energy fluxes, the presence of new, thin sea ice (<50 cm) produces lower tropospheric air temperatures in the ice interior that average ~4°C colder than those over open water near the ice edge, resulting in an ice edge baroclinic zone. This temperature difference doubles by late October and produces thermodynamic and dynamic feedbacks. These include off-ice, cold-air advection leading to enhanced surface heat loss averaging ~200 W/m2 over the open water, formation of low-level jets, suppression of the ice edge baroclinic zone, and enhanced ice drift. The interior ice growth rate is thermodynamically consistent with a surface heat loss of ~65 W/m2 to the atmosphere and a heat flux of several tens of W/m2 from the ocean below. Ice drift at times contributes to the southward advance of the autumn ice edge through off-ice winds. The ocean thermohaline structure is highly variable and appears associated with bathymetric features, small-scale upper-ocean eddies, and the growing ice cover. Lower salinity under the ice interior compared to the nearby ice edge is an upper-ocean impact of this thin ice cover. ©2018. American Geophysical Union. All Rights Reserved.
Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/113625
Appears in Collections:气候减缓与适应

Files in This Item:

There are no files associated with this item.


作者单位: Cooperative Institute for Research in Environmental Sciences, University of Colorado Boulder, Boulder, CO, United States; NOAA/ESRL/Physical Sciences Division, Boulder, CO, United States; Department of Meteorology, Naval Postgraduate School, Monterey, CA, United States; Institute for Arctic and Alpine Research, University of Colorado Boulder, Boulder, CO, United States; Applied Physics Laboratory, University of Washington, Seattle, WA, United States; Center for Southeastern Tropical Advanced Remote Sensing, University of Miami, Miami, FL, United States; Snow and Ice Geophysics Laboratory, UTSA, San Antonio, TX, United States

Recommended Citation:
Persson P.O.G.,Blomquist B.,Guest P.,et al. Shipboard Observations of the Meteorology and Near-Surface Environment During Autumn Freezeup in the Beaufort/Chukchi Seas[J]. Journal of Geophysical Research: Oceans,2018-01-01,123(7)
Service
Recommend this item
Sava as my favorate item
Show this item's statistics
Export Endnote File
Google Scholar
Similar articles in Google Scholar
[Persson P.O.G.]'s Articles
[Blomquist B.]'s Articles
[Guest P.]'s Articles
百度学术
Similar articles in Baidu Scholar
[Persson P.O.G.]'s Articles
[Blomquist B.]'s Articles
[Guest P.]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[Persson P.O.G.]‘s Articles
[Blomquist B.]‘s Articles
[Guest P.]‘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.