期刊
GEOPHYSICAL RESEARCH LETTERS
卷 43, 期 3, 页码 1287-1295出版社
AMER GEOPHYSICAL UNION
DOI: 10.1002/2015GL067081
关键词
low cloud; coastal fog; coastal climate; coastal California; seasonal cycle; summer
资金
- RESC by NASA Headquarters under the NASA Earth and Space Science Fellowship Program [NNX12AN44H]
- NOAA Coastal and Ocean Climate Applications (COCA) program [NA15OAR4310114]
- S.F.I.
- D.R.C. [500-10-041]
- NSF through Climate Education Partners [DUE-1239797]
- DOI's Southwest Climate Science Center activities
- NOAA's California and Nevada Applications Program [NA11OAR4310150]
- Direct For Education and Human Resources
- Division Of Graduate Education [1239797] Funding Source: National Science Foundation
A new satellite-derived low cloud retrieval reveals rich spatial texture and coherent space-time propagation in summertime California coastal low cloudiness (CLC). Throughout the region, CLC is greatest during May-September but has considerable monthly variability within this summer season. On average, June is cloudiest along the coast of southern California and northern Baja, Mexico, while July is cloudiest along northern California's coast. Over the course of the summer, the core of peak CLC migrates northward along coastal California, reaching its northernmost extent in late July/early August, then recedes while weakening. The timing and movement of the CLC climatological structure is related to the summer evolution of lower tropospheric stability and both its component parts, sea surface temperature and potential temperature at 700hPa. The roughly coincident seasonal timing of peak CLC with peak summertime temperatures translates into the strongest heat-modulating capacity of CLC along California's north coast.
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