globalchange  > 科学计划与规划
DOI: 10.1002/2015GL063266
论文题名:
Urbanization causes increased cloud base height and decreased fog in coastal Southern California
作者: Williams A.P.; Schwartz R.E.; Iacobellis S.; Seager R.; Cook B.I.; Still C.J.; Husak G.; Michaelsen J.
刊名: Geophysical Research Letters
ISSN: 0094-8916
EISSN: 1944-8647
出版年: 2015
卷: 42, 期:5
起始页码: 1527
结束页码: 1536
语种: 英语
英文关键词: climate change ; coastal California ; fog ; stratus ; urban heat island
Scopus关键词: Atmospheric temperature ; Boundary layers ; Clouds ; Fog ; California ; Dew point depression ; Energy and water balance ; Interannual variation ; Marine boundary layers ; Stratus ; Urban heat island ; Urban Heat Island Effects ; Climate change ; boundary layer ; climate change ; cloud cover ; energy balance ; fog ; heat island ; marine atmosphere ; stratus ; urbanization ; water budget ; California ; United States
英文摘要: Subtropical marine stratus clouds regulate coastal and global climate, but future trends in these clouds are uncertain. In coastal Southern California (CSCA), interannual variations in summer stratus cloud occurrence are spatially coherent across 24 airfields and dictated by positive relationships with stability above the marine boundary layer (MBL) and MBL height. Trends, however, have been spatially variable since records began in the mid-1900s due to differences in nighttime warming. Among CSCA airfields, differences in nighttime warming, but not daytime warming, are strongly and positively related to fraction of nearby urban cover, consistent with an urban heat island effect. Nighttime warming raises the near-surface dew point depression, which lifts the altitude of condensation and cloud base height, thereby reducing fog frequency. Continued urban warming, rising cloud base heights, and associated effects on energy and water balance would profoundly impact ecological and human systems in highly populated and ecologically diverse CSCA. © 2015. American Geophysical Union. All Rights Reserved.
URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84925863139&doi=10.1002%2f2015GL063266&partnerID=40&md5=aaa6b65b9da65b0362e0248dddf71180
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/8532
Appears in Collections:科学计划与规划
气候变化与战略

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作者单位: Lamont-Doherty Earth Observatory, Columbia University, Palisades, NY, United States

Recommended Citation:
Williams A.P.,Schwartz R.E.,Iacobellis S.,et al. Urbanization causes increased cloud base height and decreased fog in coastal Southern California[J]. Geophysical Research Letters,2015-01-01,42(5).
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