濮阳近40年干热风特征和成因分析及防御

The Reason Analysis and Defense of Dry-Hot Wind’s Characters in Recent Forty Years of Puyang City

提高干热风预报服务水平和小麦生产防灾减灾能力,增加农民收入是笔者研究的目的;根据小麦干热风指标系统,利用统计学方法、天气学原理与方法,对1969—2008年濮阳的资料进行普查,得出不同强度的干热风日的年际变化、各旬出现频率和干热风年型出现情况,从1969—2004年178个干热风个例中进行环流背景分析,得出形成干热风的3种系统类型,提出7种防御措施;根据2005—2008年在濮阳的实验,小麦干热风预报准确率93.2%,加上防御措施得当,濮阳小麦连年丰收。

The author＇s researcher purposes is boost service levels for Dry-Hot Wind will be forecasted, ability for Defend disaster and reduced disaster to produce wheat, and increases income for farmers; Given the types Changes for every years of different intensity of dry-hot wind days, appears frequency for each period of 10 days And emerges types years of Dry-Hot Wind while investigated the data since 1969 to 2008 of Puyang city, According to study index systems of Wheat Dry-Hot Wind, utilized Statistics ＇s method ,and use Meteorology＇ Principle and manners; Give to three System types that its shaped by Dry-Hot Wind, poses seven defend measures While analyzed 178 Dry-Hot Wind with background of circulation since 1969 to 2004; To forecast accurately Could be 93.2%, according to exercise in Puyang since 2005 to 2008, the wheat got harvest with defend measures Efficiently.