DOI: 10.1002/2014GL060572
论文题名: Evaluating climate model performance in the tropics with retrievals of water isotopic composition from Aura TES
作者: Field R.D. ; Kim D. ; LeGrande A.N. ; Worden J. ; Kelley M. ; Schmidt G.A.
刊名: Geophysical Research Letters
ISSN: 0094-9851
EISSN: 1944-9582
出版年: 2014
卷: 41, 期: 16 起始页码: 6030
结束页码: 6036
语种: 英语
Scopus关键词: Boundary layers
; Isotopes
; NASA
; Tropics
; Troposphere
; General circulation model
; Isotopic composition
; Isotopic distributions
; Model performance
; Planetary boundary layers
; Tropical troposphere
; Tropospheric emission spectrometers
; Water isotope
; Climate models
; Aura (satellite)
; boundary layer
; climate modeling
; instrumentation
; isotopic composition
; mass movement
; parameterization
; simulation
; tropical environment
英文摘要: We evaluate the NASA Goddard Institute for Space Studies ModelE2 general circulation model over the tropics against water isotope (HDO/H2 O) retrievals from the Aura Tropospheric Emission Spectrometer. Observed isotopic distributions are distinct from other observable quantities and can therefore act as an independent constraint. We perform a small ensemble of simulations with physics perturbations to the cumulus and planetary boundary layer schemes. We examine the degree to which model-data agreement could be used to constrain a select group of internal processes in the model, namely, condensate evaporation, entrainment strength, and updraft mass flux. All are difficult to parameterize but exert strong influence over model performance. We find that the water isotope composition is more sensitive to physics changes than precipitation, temperature, or relative humidity in the lower and upper tropical tropospheres. Among the processes considered, this is most closely, and fairly exclusively, related to midtropospheric entrainment strength. Our study indicates that water isotope observations could provide useful constraints on model parameterizations. © 2014. American Geophysical Union. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84906284244&doi=10.1002%2f2014GL060572&partnerID=40&md5=2c903f37d2d285ce80086579245776e6
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/7115
Appears in Collections: 气候减缓与适应
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作者单位: NASA Goddard Institute for Space Studies, New York, NY, United States
Recommended Citation:
Field R.D.,Kim D.,LeGrande A.N.,et al. Evaluating climate model performance in the tropics with retrievals of water isotopic composition from Aura TES[J]. Geophysical Research Letters,2014-01-01,41(16).