DOI: 10.1016/j.epsl.2017.10.048
Scopus记录号: 2-s2.0-85033553775
论文题名: Importance of depth and intensity of convection on the isotopic composition of water vapor as seen from IASI and TES δD observations
作者: Lacour J.-L. ; Risi C. ; Worden J. ; Clerbaux C. ; Coheur P.-F.
刊名: Earth and Planetary Science Letters
ISSN: 0012821X
出版年: 2018
卷: 481 起始页码: 387
结束页码: 394
语种: 英语
英文关键词: convection
; convective mixing
; infrared remote sensing
; stable water isotopes
; water cycle
; water vapor isotopologues
Scopus关键词: Boundary layers
; Heat convection
; Isotopes
; Natural convection
; Remote sensing
; Troposphere
; Convective mixing
; Infrared remote sensing
; Isotopologues
; Stable water isotopes
; Water cycle
; Water vapor
; atmospheric chemistry
; atmospheric convection
; IASI
; isotopic composition
; mixing
; precipitation intensity
; remote sensing
; stable isotope
; troposphere
; water vapor
英文摘要: We use tropical observations of the water vapor isotopic composition, derived from IASI and TES spaceborne measurements, to show that the isotopic composition of water vapor in the free troposphere is sensitive to both the depth and the intensity of convection. We find that for any given precipitation intensity, vapor associated with deep convection is isotopically depleted relative to vapor associated with shallow convection. The intensity of precipitation also plays a role as for any given depth of convection, the relative enrichment of water vapor decreases as the intensity of precipitation increases. Shallow convection, via the uplifting of enriched boundary layer air into the free troposphere and the convective detrainment, enriches the free troposphere. In contrast, deep convection is associated with processes that deplete the water vapor in the free troposphere, such as rain re-evaporation. The results of this study allow for a better identification of the parameters controlling the isotopic composition of the free troposphere and indicate that the isotopic composition of water vapor can be used to evaluate the relative contributions of shallow and deep convection in global models. © 2017 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/110174
Appears in Collections: 影响、适应和脆弱性 气候变化事实与影响
There are no files associated with this item.
作者单位: UPMC Univ. Paris 06, Université Versailles St-Quentin, LATMOS-IPSL, Paris, France; UPMC Univ. Paris 06, UMR8539, CNRS/INSU, LMD-IPSL, Paris, France; Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, United States; Spectroscopie de l'Atmosphère, Service de Chimie Quantique et Photophysique, Université Libre de Bruxelles (ULB), Brussels, Belgium
Recommended Citation:
Lacour J.-L.,Risi C.,Worden J.,et al. Importance of depth and intensity of convection on the isotopic composition of water vapor as seen from IASI and TES δD observations[J]. Earth and Planetary Science Letters,2018-01-01,481