现代农业科技Issue(19)：270-273,4.
1963-2002年南通地区旱涝天气气候事件的类型及其预兆
Type of Climate Events of Meteorological Drought and Weathersign of Nantong Area in 1963-2002
曹乃和 1张鹏 1曹成 1张开进 1赵阳 1刘娟 1曹阳 1陈建军1
作者信息
- 1. 江苏省如皋市气象局，江苏如皋 226572
- 折叠
摘要
Abstract
Aimed at the climate events of meteorological drought of Nantong Area in 1963-2002,using the ground meteorological observation data of 8 stations in the corresponding period ,the percentage of precipitation anomaly was calculated.According to the classification of meteorological drought category of China,grade was divided.Using the 500 hPa historical weather map information of 08 am (Beijing Time),based on the synoptic meteorology principles ,the characteristics and causes of drought and flood events was analyzed and weather types were divided ,the main factors of its cause was proved.The results showed that meteorological drought weather events was closely linked with rainfall anomaly losses and abundant.Riggering droughts and major weather systems were the West Pacific subtropical high ridge west ,the mainland warm high (refer to Yunnan,Guizhou,South China Sea,high pressure and high pressure)and the South Branch of the westerly trough and typhoons.Drought occurred in the subtropical ridge westward extension of the adiabatic warming in the sink area and the westerly trough divergence ,the floods had westerly trough in the southern branch of the continuous rain inter striker area ,heavy rainfall and typhoon storm area.El Nino and La Nina drought and flood events and climate events of Nantong area had a certain correlation.temperature departure percentage under monthly scale between December in the last year to March in the same year had 150,180 days corresponding rhythm with drought weather events from June to August.关键词
旱涝天气/类型/预兆/江苏南通/1963-2002年Key words
drought weather/type/weathersign/Nantong Jiangsu/1963-2002分类
天文与地球科学引用本文复制引用
曹乃和,张鹏,曹成,张开进,赵阳,刘娟,曹阳,陈建军..1963-2002年南通地区旱涝天气气候事件的类型及其预兆[J].现代农业科技,2013,(19):270-273,4.
