DOI: 10.1002/2016GL070263
论文题名: ENSO regulation of far- and mid-infrared contributions to clear-sky OLR
作者: Kahn B.H. ; Huang X. ; Stephens G.L. ; Collins W.D. ; Feldman D.R. ; Su H. ; Wong S. ; Yue Q.
刊名: Geophysical Research Letters
ISSN: 0094-8747
EISSN: 1944-8478
出版年: 2016
卷: 43, 期: 16 起始页码: 8751
结束页码: 8759
语种: 英语
英文关键词: clear sky
; ENSO
; far infrared
; tropics
; upper troposphere
; water vapor
Scopus关键词: Atmospheric pressure
; Climatology
; FIR filters
; Infrared devices
; NASA
; Nickel
; Tropics
; Troposphere
; Velocity
; Clear sky
; ENSO
; Far infrared
; Geophysical fluid dynamics laboratories
; Outgoing longwave radiation
; Thermodynamic profiles
; Upper troposphere
; Upper tropospheric water vapors
; Water vapor
英文摘要: NASA Aqua-derived thermodynamic profiles, calculated spectral clear-sky outgoing longwave radiation (OLR), and vertical velocity fields from meteorological reanalyses are combined to determine the relative proportion of the far-infrared (FIR) and mid-infrared (MIR) spectral contributions to the total clear-sky OLR during different phases of El Niño–Southern Oscillation (ENSO). In the ascending branch of the tropical circulation, the spatial variance of upper tropospheric water vapor is shown to be larger during La Niña than El Niño and is consistent with zonal symmetry changes in the tropical waveguide and associated tropical-extratropical mixing. In the descending branch, upper tropospheric water vapor shows weaker coupling to lower layers that is evidenced by changes in the ratio of FIR to MIR in the clear-sky OLR. Diagnostics from the Geophysical Fluid Dynamics Laboratory AM3 model simulation are generally similar to satellite data, but the ratio of FIR to MIR is 5–10% larger with respect to dynamic regime. ©2016. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84983387760&doi=10.1002%2f2016GL070263&partnerID=40&md5=1b215b68ac06a1bed2efdbbf02bc2b32
Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/9710
Appears in Collections: 科学计划与规划 气候变化与战略
There are no files associated with this item.
作者单位: Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, United States
Recommended Citation:
Kahn B.H.,Huang X.,Stephens G.L.,et al. ENSO regulation of far- and mid-infrared contributions to clear-sky OLR[J]. Geophysical Research Letters,2016-01-01,43(16).