DOI: 10.1175/JCLI-D-13-00047.1
Scopus记录号: 2-s2.0-84892496519
论文题名: Satellite-Based reconstruction of the tropical oceanic clear-sky outgoing longwave radiation and comparison with climate models
作者: Gastineau G. ; Soden B.J. ; Jackson D.L. ; O'Dell C.W.
刊名: Journal of Climate
ISSN: 8948755
出版年: 2014
卷: 27, 期: 2 起始页码: 941
结束页码: 957
语种: 英语
Scopus关键词: Coupled Model Intercomparison Project
; High resolution infrared radiation sounders
; Internal climate variability
; Multivariate regression
; Natural climate variabilities
; Outgoing longwave radiation
; Radiation measurements
; Stability uncertainties
; Atmospheric temperature
; Climatology
; Greenhouse effect
; Infrared radiation
; Regression analysis
; Satellites
; Tropics
; Uncertainty analysis
; Oceanography
; clear sky
; climate modeling
; climate variation
; longwave radiation
; marine atmosphere
; NOAA satellite
; satellite imagery
; sea surface temperature
; top of atmosphere
; tropical region
英文摘要: The changes of the outgoing longwave radiation (OLR) in clear-sky conditions have been calculated using High Resolution Infrared Radiation Sounder (HIRS) observations from 1979 to 2004. After applying corrections for satellite orbital drift and intercalibration of the HIRS/2 data from the NOAA satellites, the OLR is calculated from a multivariate regression over the tropical ocean region. The clear-sky OLR retrievals compare well with the observed top-of-atmosphere radiation measurements, although the precision and stability uncertainties are larger. While the tropical ocean surface temperature has risen by roughly 0.2Kfrom 1982 to 2004, the reconstructed OLR remains stable over the ocean. Consequently, there is an increase in the clear-sky greenhouse effect (GHE) of 0.80Wm-2 decade-1. This trend is shown to be larger than the uncertainty in the stability of the HIRS retrievals. The observations are compared with two phase 3 of the Coupled Model Intercomparison Project model ensembles: one ensemble includes both natural and anthropogenic forcings [the twentieth-century (20C) ensemble] and the other ensemble only contains natural climate variability (the control ensemble). The OLR trend in the 20C simulations tends to be more negative than observed, although a majority is found to be within the observational uncertainty. Conversely, the response of the clear-sky OLR to SST is shown to be very similar in observations and models. Therefore, the trend differences between the 20C simulations and observations are likely because of internal climate variability or uncertainties in the external forcings. The observed increase in GHE is shown to be inconsistent with the control ensemble, indicating that anthropogenic forcings are required to reproduce the observed changes in GHE. © 2014 American Meteorological Society. 资助项目: NASA, National Aeronautics and Space Administration
Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/50990
Appears in Collections: 气候变化事实与影响
There are no files associated with this item.
作者单位: LOCEAN/IPSL, Université Pierre et Marie Curie, Paris, France; Rosenstiel School of Marine and Atmospheric Sciences, University of Miami, Miami, FL, United States; CIRES, University of Colorado at Boulder, Boulder, CO, United States; Department of Atmospheric Science, Colorado State University, Fort Collins, CO, United States
Recommended Citation:
Gastineau G.,Soden B.J.,Jackson D.L.,et al. Satellite-Based reconstruction of the tropical oceanic clear-sky outgoing longwave radiation and comparison with climate models[J]. Journal of Climate,2014-01-01,27(2)