摘要
2013年8月15—17日辽宁地区出现特大暴雨过程,对当地造成了重大的经济损失。利用探空资料、地面实测资料及ECWMF再分析资料,通过分析高低空天气形势、水汽条件以及垂直运动条件,对"8·16"暴雨在辽宁不同地区的雨强和持续性进行了分析。结果表明,大中尺度环流场为该次暴雨提供了十分有利的背景条件,高空急流和低空切变提供良好的动力抬升条件,地形和局地水汽量是不同地区雨强和雨量存在差别的重要因子,整个天气过程清原县总降水量最大、持续时间最长,造成了巨大的损失;小时最大雨强出现在黑山县为108.2 mm。该次暴雨对辽宁地区的农牧业生产产生巨大损失,辽宁省农业受灾情况严重,其中,黑山县农牧渔业直接经济损失达到2.12亿元人民币;西丰县农牧渔业损失达2.745亿元人民币;抚顺市农作物受灾面积1 803.47 hm^2,对农业生产造成的直接经济损失为2 366万元人民币;新宾县农作物受灾总面积5 244.3 hm^2、成灾面积4 387 hm^2、绝收面积1 341.5 hm^2、毁坏耕地面积890.3 hm^2,死亡大牲畜135头、羊50只。
The terrential rain which occurred in Liaoning region during 15 to 17 August 2013 caused significant economic losses to the local area. This experiment analyzed rainfall intensity and persistence of ＂8·16＂ heavy rain in different regions of Liaoning Province based on analyzing high and low-altitude weather conditions, water vapor conditions and vertical movement conditions by using the sounding data, ground data and ECWMF reanalysis data. The results showed that the large-scale and mesoscale circulation field provided a favorable background condition for the terrential rain, the high-altitude jet stream and the low-altitude shear provided good dynamic lifting conditions. The terrain and regional water vapor were important factors associated with the differences of rainfall intensity and precipitation in different regions. During the whole weather process, the highest total rainfall amount and the longest persistence duration were observed in Qinyuan County, which resulted in a huge loss; the hour maximum rainfall intensity was found in Heishan County which reached up to 108.2 mm. The heavy rain caused huge losses to the agricultural and animal husbandry production in Liaoning region. The direct economic loss of agriculture, animal husbandry and fishery in Heishan County reached up to 212 million Yuan; the economic loss of agriculture, animal husbandry and fishery in Xifeng County was 274.5 million Yuan; the affected area of crops in Fushun City was 1 803.47 hm^2, and the direct economic loss to agricultural production was 23.66 million Yuan; the total affected area of crops in Xinbin County was 5 244.3 hm^2, the disaster area was 4 387 hm^2, the total harvest failure area was 1 341.5 hm^2, the destroyed cultivated land area was 890.3 hm2, and 135 livestock and 50 sheep died.
作者
常姝婷
徐玉秀
常松
CHANG Shu-ting;XU Yu-xiu;CHANG Song(College of Atmospheric Sciences,Lanzhou University,Lanzhou 730000,China;Meteorological Bureau of Jinzhou,Jinzhou 121299,China;Meteorological Bureau of Beizhen,Beizhen 121300,China)
出处
《畜牧与饲料科学》
2018年第10期57-64,68,共9页
Animal Husbandry and Feed Science
关键词
最大雨强
降水持续性
大气环流形势
水汽条件
垂直运动条件
农牧业生产
maximum rainfall intensity
rainfall persistence
atmospheric circulation situation
water vapor conditions
vertical movement conditions
agricultural and animal husbandry production
