期刊
GEOPHYSICAL RESEARCH LETTERS
卷 42, 期 13, 页码 5594-5602出版社
AMER GEOPHYSICAL UNION
DOI: 10.1002/2015GL064373
关键词
warm-air advection; surface inversion; fog; surface energy balance; sea-ice melt; Arctic
资金
- Knut and Alice Wallenberg Foundation
- Swedish Research Council
- US Office of Naval Research
- US National Oceanic and Atmospheric Administration (NOAA)
- UK Natural Environment Research Council
- NERC [NE/K011820/1] Funding Source: UKRI
- Natural Environment Research Council [NE/K011820/1] Funding Source: researchfish
Direct observations during intense warm-air advection over the East Siberian Sea reveal a period of rapid sea-ice melt. A semistationary, high-pressure system north of the Bering Strait forced northward advection of warm, moist air from the continent. Air-mass transformation over melting sea ice formed a strong, surface-based temperature inversion in which dense fog formed. This induced a positive net longwave radiation at the surface while reducing net solar radiation only marginally; the inversion also resulted in downward turbulent heat flux. The sum of these processes enhanced the surface energy flux by an average of similar to 15Wm(-2) for a week. Satellite images before and after the episode show sea-ice concentrations decreasing from > 90% to similar to 50% over a large area affected by the air-mass transformation. We argue that this rapid melt was triggered by the increased heat flux from the atmosphere due to the warm-air advection.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据