DOI: 10.1175/JCLI-D-16-0199.1
Scopus记录号: 2-s2.0-84995388266
论文题名: No access the impact of horizontal resolution on north american monsoon gulf of california moisture surges in a suite of coupled global climate models
作者: Pascale S. ; Bordoni S. ; Kapnick S.B. ; Vecchi G.A. ; Jia L. ; Delworth T.L. ; Underwood S. ; Anderson W.
刊名: Journal of Climate
ISSN: 8948755
出版年: 2016
卷: 29, 期: 21 起始页码: 7911
结束页码: 7936
语种: 英语
Scopus关键词: Atmospheric temperature
; Atmospheric thermodynamics
; Atmospherics
; Climate change
; Mechanical waves
; Moisture
; Moisture control
; Oceanography
; Precipitation (meteorology)
; Storms
; Surface waters
; Tropics
; Waves
; Coupled global climate model
; Geophysical fluid dynamics laboratories
; Global circulation model
; Hydrometeorology
; Intraseasonal variability
; Monsoons
; Precipitation anomalies
; Substantial reduction
; Climate models
英文摘要: The impact of atmosphere and ocean horizontal resolution on the climatology of North American monsoon Gulf of California (GoC) moisture surges is examined in a suite of global circulation models (CM2.1, FLOR, CM2.5, CM2.6, and HiFLOR) developed at the Geophysical Fluid Dynamics Laboratory (GFDL). These models feature essentially the same physical parameterizations but differ in horizontal resolution in either the atmosphere (≃200, 50, and 25 km) or the ocean (≃1°, 0.25°, and 0.1°). Increasing horizontal atmospheric resolution from 200 to 50 km results in a drastic improvement in the model's capability of accurately simulating surge events. The climatological near-surface flow and moisture and precipitation anomalies associated with GoC surges are overall satisfactorily simulated in all higher-resolution models. The number of surge events agrees well with reanalyses, but models tend to underestimate July-August surge-related precipitation and overestimate September surge-related rainfall in the southwestern United States. Large-scale controls supporting the development of GoC surges, such as tropical easterly waves (TEWs), tropical cyclones (TCs), and trans-Pacific Rossby wave trains (RWTs), are also well captured, although models tend to underestimate the TEW and TC magnitude and number. Near-surface GoC surge features and their large-scale forcings (TEWs, TCs, and RWTs) do not appear to be substantially affected by a finer representation of the GoC at higher ocean resolution. However, the substantial reduction of the eastern Pacific warm sea surface temperature bias through flux adjustment in the Forecast-Oriented Low Ocean Resolution (FLOR) model leads to an overall improvement of tropical-extratropical controls on GoC moisture surges and the seasonal cycle of precipitation in the southwestern United States. © 2016 American Meteorological Society. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/50107
Appears in Collections: 气候变化事实与影响
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作者单位: California Institute of Technology, Pasadena, CA, United States; NOAA/Geophysical Fluid Dynamics Laboratory, Princeton, NJ, United States; Atmospheric and Oceanic Sciences Program, Princeton University, Princeton, NJ, United States
Recommended Citation:
Pascale S.,Bordoni S.,Kapnick S.B.,et al. No access the impact of horizontal resolution on north american monsoon gulf of california moisture surges in a suite of coupled global climate models[J]. Journal of Climate,2016-01-01,29(21)