DOI: 10.1175/JCLI-D-11-00442.1
Scopus记录号: 2-s2.0-84865087836
论文题名: Mean biases, variability, and trends in air-sea fluxes and sea surface temperature in the CCSM4
作者: Bates S.C. ; Fox-Kemper B. ; Jayne S.R. ; Large W.G. ; Stevenson S. ; Yeager S.G.
刊名: Journal of Climate
ISSN: 8948755
出版年: 2012
卷: 25, 期: 22 起始页码: 7781
结束页码: 7801
语种: 英语
Scopus关键词: Air sea flux
; Air temperature
; Atmosphere-ocean interactions
; Community climate system model
; Coupled models
; Data sets
; Freshwater fluxes
; Future models
; Hydrological cycles
; Interannual
; Model evaluation
; Planetary boundary layers
; Sea surface temperature (SST)
; Sea-surface conditions
; Sensible and latent heat fluxes
; Short-wave radiation
; Specific humidity
; Time-scales
; Atmospheric humidity
; Atmospheric thermodynamics
; Boundary layers
; Climate models
; Errors
; Frequency bands
; Oceanography
; Atmospheric temperature
; air-sea interaction
; atmosphere-ocean coupling
; boundary layer
; climate modeling
; latent heat flux
; sea surface temperature
; sensible heat flux
英文摘要: Air-sea fluxes from the Community Climate System Model version 4 (CCSM4) are compared with the Coordinated Ocean-Ice Reference Experiment (CORE) dataset to assess present-day mean biases, variability errors, and late twentieth-century trend differences. CCSM4 is improved over the previous version, CCSM3, in both air-sea heat and freshwater fluxes in some regions; however, a large increase in net shortwave radiation into the ocean may contribute to an enhanced hydrological cycle. The authors provide a new baseline for assessment of flux variance at annual and interannual frequency bands in future model versions and contribute a new metric for assessing the coupling between the atmospheric and oceanic planetary boundary layer (PBL) schemes of any climate model. Maps of the ratio of CCSM4 variance to CORE reveal that variance on annual time scales has larger error than on interannual time scalesand that different processes cause errors in mean, annual, and interannual frequency bands. Air temperature and specific humidity in the CCSM4 atmospheric boundary layer (ABL) follow the sea surface conditions much more closely than is found in CORE. Sensible and latent heat fluxes are less of a negative feedback to sea surface temperature warming in the CCSM4 than in theCOREdata with the model's PBL allowing for more heating of the ocean's surface. © 2012 American Meteorological Society. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/52170
Appears in Collections: 气候变化事实与影响
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作者单位: National Center for Atmospheric Research, Boulder, CO, United States; Cooperative Institute for Research in Environmental Sciences, University of Colorado, Boulder, CO, United States; Woods Hole Oceanographic Institution, Woods Hole, MA, United States; International Pacific Research Center, University of Hawaii at Manoa, Honolulu, HI, United States
Recommended Citation:
Bates S.C.,Fox-Kemper B.,Jayne S.R.,et al. Mean biases, variability, and trends in air-sea fluxes and sea surface temperature in the CCSM4[J]. Journal of Climate,2012-01-01,25(22)