DOI: 10.1002/jgrd.50652
论文题名: The variability of California summertime marine stratus: Impacts on surface air temperatures
作者: Iacobellis S.F. ; Cayan D.R.
刊名: Journal of Geophysical Research Atmospheres
ISSN: 21698996
出版年: 2013
卷: 118, 期: 16 起始页码: 9105
结束页码: 9122
语种: 英语
Scopus关键词: Clouds
; Solar radiation
; Surface properties
; Temperature distribution
; Marine boundary layers
; Nighttime temperatures
; Surface air temperatures
; Surface observation
; Surface temperature anomalies
; Surface temperature variation
; Surface temperatures
; Temperature fluctuation
; Atmospheric temperature
; air temperature
; albedo
; boundary layer
; satellite imagery
; summer
; temperature effect
; timescale
; California
; Pacific Ocean
; Pacific Ocean (North)
; United States
英文摘要: This study investigates the variability of clouds, primarily marine stratus clouds, and how they are associated with surface temperature anomalies over California, especially along the coastal margin. We focus on the summer months of June to September when marine stratus are the dominant cloud type. Data used include satellite cloud reflectivity (cloud albedo) measurements, hourly surface observations of cloud cover and air temperature at coastal airports, and observed values of daily surface temperature at stations throughout California and Nevada. Much of the anomalous variability of summer clouds is organized over regional patterns that affect considerable portions of the coast, often extend hundreds of kilometers to the west and southwest over the North Pacific, and are bounded to the east by coastal mountains. The occurrence of marine stratus is positively correlated with both the strength and height of the thermal inversion that caps the marine boundary layer, with inversion base height being a key factor in determining their inland penetration. Cloud cover is strongly associated with surface temperature variations. In general, increased presence of cloud (higher cloud albedo) produces cooler daytime temperatures and warmer nighttime temperatures. Summer daytime temperature fluctuations associated with cloud cover variations typically exceed 1°C. The inversion-cloud albedo-temperature associations that occur at daily timescales are also found at seasonal timescales. © 2013. Her Majesty the Queen in Right of Canada. American Geophysical Union.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/63387
Appears in Collections: 影响、适应和脆弱性 气候减缓与适应
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作者单位: Scripps Institution of Oceanography, University of California, San Diego, 9500 Gilman Dr., San Diego, CA 92093-0224, United States; U.S. Geological Survey, San Diego, CA, United States
Recommended Citation:
Iacobellis S.F.,Cayan D.R.. The variability of California summertime marine stratus: Impacts on surface air temperatures[J]. Journal of Geophysical Research Atmospheres,2013-01-01,118(16)