气候变化领域集成服务门户(CCPortal): Near-Global Variability of Stratospheric Water Vapor Observed by SAGE III/ISS

CCPortal

DOI	10.1029/2020JD034274
	Near-Global Variability of Stratospheric Water Vapor Observed by SAGE III/ISS
	Park M.; Randel W.J.; Damadeo R.P.; Flittner D.E.; Davis S.M.; Rosenlof K.H.; Livesey N.; Lambert A.; Read W.
发表日期	2021
ISSN	2169897X
卷号	126 期号:7
英文摘要	The Stratospheric Aerosol and Gas Experiment III instrument on the International Space Station (SAGE III/ISS) has been making high quality solar occultation measurements of stratospheric water vapor since June 2017. Here we evaluate the large-scale geophysical variability of the SAGE III/ISS water vapor measurements for the first 3 years of observations (2017–2020) as part of data validation for retrieval version 5.1 (v5.1). Detailed comparisons of SAGE III/ISS v5.1 with the Aura Microwave Limb Sounder (MLS) version 5 retrievals show overall excellent agreement in terms of seasonal mean structure and large-scale variability. SAGE III/ISS data capture the well-known seasonal variations in water vapor including the vertically propagating “tape recorder” in the tropics and lower stratospheric maxima linked to the NH summer monsoons. The high vertical resolution (∼2 km) measurements from SAGE III/ISS demonstrate contributions of the monsoons to the wet phase of “tape recorder” during the Northern Hemisphere (NH) summer. Interannual variations over the short data record are also consistent between SAGE III/ISS and MLS in the stratosphere between 16 and 30 km. We furthermore evaluate large-scale variations in relative humidity (RH) derived from the high vertical resolution SAGE III/ISS water vapor measurements, highlighting the detailed seasonal behavior and links to thermal structure near the tropical tropopause. Spatial distributions of RH at the cold point tropopause (CPT) show a close link between high RH and the minimum CPT temperature in both the NH winter and summer, consistent with temperature control of water vapor near the tropopause. © 2021. American Geophysical Union. All Rights Reserved.
英文关键词	MLS; relative humidity; SAGE III/ISS; satellite; stratosphere; water vapor
语种	英语
来源期刊	Journal of Geophysical Research: Atmospheres
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/185327
作者单位	National Center for Atmospheric Research (NCAR), Atmospheric Chemistry Observations and Modeling (ACOM), Boulder, CO, United States; National Aeronautics and Space Administration (NASA), Langley Research Center, Hampton, VA, United States; National Oceanic and Atmospheric Administration (NOAA), Chemical Sciences Laboratory, Boulder, CO, United States; Jet Propulsion Laboratory (JPL), California Institute of Technology, Pasadena, CA, United States
推荐引用方式 GB/T 7714	Park M.,Randel W.J.,Damadeo R.P.,et al. Near-Global Variability of Stratospheric Water Vapor Observed by SAGE III/ISS[J],2021,126(7).
APA	Park M..,Randel W.J..,Damadeo R.P..,Flittner D.E..,Davis S.M..,...&Read W..(2021).Near-Global Variability of Stratospheric Water Vapor Observed by SAGE III/ISS.Journal of Geophysical Research: Atmospheres,126(7).
MLA	Park M.,et al."Near-Global Variability of Stratospheric Water Vapor Observed by SAGE III/ISS".Journal of Geophysical Research: Atmospheres 126.7(2021).