Temporal and Spatial Distribution and Influencing Factor Analysis of Coastal Fogs in Zhejiang
- Article
- Figures
- Metrics
- Preview PDF
- Reference
- Related
- Cited by
- Materials
Abstract:
By use of the data of 33 coastal weather stations in Zhejiang from 1958 to 2012, the occurrence and dissipation characteristics of coastal fogs and the relationship between coastal fog and surface wind are analyzed. The results show that the annual mean number of fog days is over 10 days at 28 stations and the distribution in the whole coastal area is relatively uniform. The annual mean number of coastal fog days in Zhejiang is 517 days from 1971 to 2012, which presents obvious interannual characteristics. The coastal fog also has seasonal and monthly variation. The number of fog days is the greatest in spring and early summer. Coastal fogs have obvious diurnal variation: mainly form from 23:00 to 06:00 and dissipate from 06:00 to 10:00 Coastal fogs occur mostly under the southern wind condition with the wind speed being less 120 m/s. The weather situations corresponding the coastal fogs from 2005 to 2011 are analyzed. The main circulation patterns for fog occurrence include the western extratropical coldcore high, the surface inverted trough, the forepart of the stationary front or cold front, the bottom of weak high pressure, saddle field, and the southwest Japan Sea high.
Keywords:
Project Supported:
Clc Number:
You are thevisitors
Supported by:Beijing E-Tiller Technology Development Co., Ltd.
Supported by:Beijing E-Tiller Technology Development Co., Ltd.