气候变化领域集成服务门户(CCPortal): Surface Warming During the 2018/Mars Year 34 Global Dust Storm

CCPortal

DOI	10.1029/2019GL083936
	Surface Warming During the 2018/Mars Year 34 Global Dust Storm
	Streeter P.M.; Lewis S.R.; Patel M.R.; Holmes J.A.; Kass D.M.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:9
英文摘要	The impact of Mars's 2018 Global Dust Storm (GDS) on surface and near-surface air temperatures was investigated using an assimilation of Mars Climate Sounder observations. Rather than simply resulting in cooling everywhere from solar absorption (average surface radiative flux fell 26 W/m2), the globally averaged result was a 0.9-K surface warming. These diurnally averaged surface temperature changes had a novel, highly nonuniform spatial structure, with up to 16-K cooling/19-K warming. Net warming occurred in low thermal inertia regions, where rapid nighttime radiative cooling was compensated by increased longwave emission and scattering. This caused strong nightside warming, outweighing dayside cooling. The reduced surface-air temperature gradient closely coupled surface and air temperatures, even causing local dayside air warming. Results show good agreement with Mars Climate Sounder surface temperature retrievals. Comparisons with the 2001 GDS and free-running simulations show that GDS spatial structure is crucial in determining global surface temperature effects. ©2019. The Authors.
英文关键词	Acoustic devices; Atmospheric temperature; Dust; Radiative Cooling; Storms; Surface properties; Global surface temperature; Long-wave emissions; Near surface air temperature; Running simulations; Surface air temperatures; Surface radiative flux; Surface temperature changes; Surface temperature retrieval; Absorption cooling; absorption; air temperature; cooling; dust storm; longwave radiation; Mars; observational method; surface temperature; warming; wave scattering
语种	英语
来源期刊	Geophysical Research Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/170370
作者单位	School of Physical Sciences, The Open University, Milton Keynes, United Kingdom; Space Science and Technology Department, Science and Technology Facilities Council, Rutherford Appleton Laboratory, Didcot, United Kingdom; Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, United States
推荐引用方式 GB/T 7714	Streeter P.M.,Lewis S.R.,Patel M.R.,et al. Surface Warming During the 2018/Mars Year 34 Global Dust Storm[J],2020,47(9).
APA	Streeter P.M.,Lewis S.R.,Patel M.R.,Holmes J.A.,&Kass D.M..(2020).Surface Warming During the 2018/Mars Year 34 Global Dust Storm.Geophysical Research Letters,47(9).
MLA	Streeter P.M.,et al."Surface Warming During the 2018/Mars Year 34 Global Dust Storm".Geophysical Research Letters 47.9(2020).