气候变化领域集成服务门户(CCPortal): Extreme Outliers in Lower Stratospheric Water Vapor Over North America Observed by MLS: Relation to Overshooting Convection Diagnosed From Colocated Aqua-MODIS Data

CCPortal

DOI	10.1029/2020GL090131
	Extreme Outliers in Lower Stratospheric Water Vapor Over North America Observed by MLS: Relation to Overshooting Convection Diagnosed From Colocated Aqua-MODIS Data
	Werner F.; Schwartz M.J.; Livesey N.J.; Read W.G.; Santee M.L.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:24
英文摘要	Convectively injected water vapor (H2O) in the North American (NA) summer lowermost stratosphere results in significant outliers in the 100-hPa H2O measurements from the Aura Microwave Limb Sounder (MLS). MLS statistics from 15 years confirm that the NA region contains over 60% of global 100-hPa H2O > 12 ppmv, despite having only ∼1.8% of all MLS observations. A profile sampled in August 2019 stands out, with (Formula presented.) ppmv, far exceeding the prior record and the median ∼4.5-ppmv abundance in NA. This particular outlier is associated with a large overshooting convective event (OCE) that spanned multiple U.S. states and persisted for several hours. Colocation of the MLS data over NA with cloud observations from Aqua's Moderate Resolution Imaging Spectroradiometer (MODIS) reveals the unique character of this case, as only 2.3% of MLS profiles are as close to an OCE and only 0.024% of OCEs cover as large an area within a 500-km perimeter of a profile. ©2020. The Authors.
英文关键词	Radiometers; Statistics; Cloud observations; Colocations; Convective events; Injected water; Lowermost stratosphere; Microwave limb sounder; Moderate resolution imaging spectroradiometer; North American; Water vapor; microwave limb sounder; MODIS; outlier; satellite data; stratosphere; water vapor; North America
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/169290
作者单位	Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, United States
推荐引用方式 GB/T 7714	Werner F.,Schwartz M.J.,Livesey N.J.,et al. Extreme Outliers in Lower Stratospheric Water Vapor Over North America Observed by MLS: Relation to Overshooting Convection Diagnosed From Colocated Aqua-MODIS Data[J],2020,47(24).
APA	Werner F.,Schwartz M.J.,Livesey N.J.,Read W.G.,&Santee M.L..(2020).Extreme Outliers in Lower Stratospheric Water Vapor Over North America Observed by MLS: Relation to Overshooting Convection Diagnosed From Colocated Aqua-MODIS Data.Geophysical Research Letters,47(24).
MLA	Werner F.,et al."Extreme Outliers in Lower Stratospheric Water Vapor Over North America Observed by MLS: Relation to Overshooting Convection Diagnosed From Colocated Aqua-MODIS Data".Geophysical Research Letters 47.24(2020).