摘要
利用美国国家气候数据中心NCDC提供的大连站1973—2010年间的每日地面观测概要数据统计分析了大连低能见度(<4 km)的年月分布、持续时间等特征,探讨了大连低能见度与天气现象、相对湿度、日平均风速等因素的关系。并利用韩国气象局KMA提供的2006—2010年每日天气图,对大连低能见度出现时的天气形势进行了归纳分析。
Based on the global surface summary of day product data at Dalian station provided by the National Climatic Data Center （NCDC） from 1973 to 2010, the characteristics of annual and monthly distribution and duration of low atmospheric visibility （ 〈 4km） were analyzed. The influenced factors, such as weather phenome- non, relative humidity and daily-averaged wind speed, were discussed as well. Moreover, synoptic chart of Meteo- rological Administration Korea （KMA） from 2006 to 2010 was used to analyze the synoptic situation when at- mospheric visibility at Dalian was lower than 4km.
出处
《海洋预报》
2011年第5期44-49,共6页
Marine Forecasts
关键词
低能见度
气候特征
雾
天气型
low atmospheric visibility
climate characteristic
fog
weather type
