极地研究

极地研究 ›› 2010, Vol. 21 ›› Issue (2-English): 160-166.DOI: 10.3724/SP.J.1085.2010.00160

• 研究论文 • 上一篇    下一篇

The climate background and synoptic situation of fog at Great Wall Station, Antarctica

Xu Cong(许淙)* , Yang Qinghua(杨清华) and Xue Zhenhe(薛振和)
  

  1. National Marine Environmental Forecasting Center, Beijing 100081, China
  • 收稿日期:2010-06-29 修回日期:2010-10-13 出版日期:1960-06-30 发布日期:1960-06-30
  • 通讯作者: Xu Cong

The climate background and synoptic situation of fog at Great Wall Station, Antarctica

Xu Cong(许淙)* , Yang Qinghua(杨清华) and Xue Zhenhe(薛振和)
  

  1. National Marine Environmental Forecasting Center, Beijing 100081, China
  • Received:2010-06-29 Revised:2010-10-13 Online:1960-06-30 Published:1960-06-30
  • Contact: Xu Cong

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摘要：

Based on the observed and NCEP reanalysis data from 1985 to 2006, the climate background and synoptic situation of fog at Great Wall Station were analyzed. It is shown that the seasonal variation of fog is controlled by the change of general circulation and local pressure field. Three favorable typical synoptic situations for fog development are found, the Front-of-A-Depression type, the Saddle-Shaped-Field type and the Passing-Weak-Cyclone type. The first one is the most important situation. Advection cooling fog is dominant at Great Wall Station, but there are other kinds of fog as well. As a result, some helpful principles for local fog forecasting are given.

关键词: sea fog, synoptic situation, Great Wall Station, Antarctic

Abstract:

Based on the observed and NCEP reanalysis data from 1985 to 2006, the climate background and synoptic situation of fog at Great Wall Station were analyzed. It is shown that the seasonal variation of fog is controlled by the change of general circulation and local pressure field. Three favorable typical synoptic situations for fog development are found, the Front-of-A-Depression type, the Saddle-Shaped-Field type and the Passing-Weak-Cyclone type. The first one is the most important situation. Advection cooling fog is dominant at Great Wall Station, but there are other kinds of fog as well. As a result, some helpful principles for local fog forecasting are given.

Key words: sea fog, synoptic situation, Great Wall Station, Antarctic