With the sea surface observations from ICOADS for the years 1960-2002, the conditions of coohng, evaporauon anu water vapol transportation are analyzed and compared for the formation of seasonal sea fog in April-July ...With the sea surface observations from ICOADS for the years 1960-2002, the conditions of coohng, evaporauon anu water vapol transportation are analyzed and compared for the formation of seasonal sea fog in April-July in the Huanghai Sea. It is found that sea surface cooling is always existent during the fog seasons while sea surface evaporation only appears in April-June in the Huanghai Sea. Local evaporation alone is not sufficient to form fogs though it may lead to light ones. Water vapor transported from the low-latitudes accomplished by specific synoptic systems is the most important condition for sea fog formation. In general, the moistening effect is more important than the cooling one.展开更多
The synoptic analysis of sea fog in western Antarctic sea region is made based on the observation data in the Chinese Antarctic station, Great Wall Station, from December 1994 to November 1995, and the facsimile weath...The synoptic analysis of sea fog in western Antarctic sea region is made based on the observation data in the Chinese Antarctic station, Great Wall Station, from December 1994 to November 1995, and the facsimile weather charts issued by Chile. It is found that more than 90% fog in this region is the advection cooling fog. Also, the synoptic mechanism of the fog creation and distinction is discussed by analyzing the pressure field, the temperature field and the upperlevel stratification. Finally, the focus of attention in forecasting fog is pointed out.展开更多
本文利用PAFOG(Parameterized Fog Model)一维模式研究了2012年8月12日发生在美国阿拉斯加巴罗的一次平流雾过程,通过引入温湿平流项,分析了平流过程对PAFOG模拟北极雾能力的影响。结果显示,引入温湿平流项后可以帮助PAFOG更好的模拟了...本文利用PAFOG(Parameterized Fog Model)一维模式研究了2012年8月12日发生在美国阿拉斯加巴罗的一次平流雾过程,通过引入温湿平流项,分析了平流过程对PAFOG模拟北极雾能力的影响。结果显示,引入温湿平流项后可以帮助PAFOG更好的模拟了大气的温湿剖面、辐射冷却的强度和出现时间,从而更好的模拟雾的消散过程和垂直结构,使得雾的模拟更加合理。展开更多
文摘With the sea surface observations from ICOADS for the years 1960-2002, the conditions of coohng, evaporauon anu water vapol transportation are analyzed and compared for the formation of seasonal sea fog in April-July in the Huanghai Sea. It is found that sea surface cooling is always existent during the fog seasons while sea surface evaporation only appears in April-June in the Huanghai Sea. Local evaporation alone is not sufficient to form fogs though it may lead to light ones. Water vapor transported from the low-latitudes accomplished by specific synoptic systems is the most important condition for sea fog formation. In general, the moistening effect is more important than the cooling one.
文摘The synoptic analysis of sea fog in western Antarctic sea region is made based on the observation data in the Chinese Antarctic station, Great Wall Station, from December 1994 to November 1995, and the facsimile weather charts issued by Chile. It is found that more than 90% fog in this region is the advection cooling fog. Also, the synoptic mechanism of the fog creation and distinction is discussed by analyzing the pressure field, the temperature field and the upperlevel stratification. Finally, the focus of attention in forecasting fog is pointed out.
文摘本文利用PAFOG(Parameterized Fog Model)一维模式研究了2012年8月12日发生在美国阿拉斯加巴罗的一次平流雾过程,通过引入温湿平流项,分析了平流过程对PAFOG模拟北极雾能力的影响。结果显示,引入温湿平流项后可以帮助PAFOG更好的模拟了大气的温湿剖面、辐射冷却的强度和出现时间,从而更好的模拟雾的消散过程和垂直结构,使得雾的模拟更加合理。
