2017年春季以来青海省气候特征及其影响分析  

Climate Characteristics and Impact Analysis in Qinghai Province Since Spring of 2017

作　　者：海显莲[1] 靳世强[1] 曹释安[1] 戴升[2] 李甫[3] 

机构地区：[1]青海省气象台,青海西宁810001 [2]青海省气候中心 [3]青海省气象科学研究所

出　　处：《现代农业科技》2017年第21期217-219,共3页Modern Agricultural Science and Technology

摘　　要：利用青海省常规气象观测资料、农牧业土壤干旱监测资料、生态气象灾害及水体遥感卫星监测等资料,对2017年春季以来青海异常天气气候特征及其影响进行了分析。结果表明,降水量异常偏多,第一场透雨提前;气温阶段性偏低,10站次达寒潮标准,8站次达强降温标准;北极涛动大部分时间为负位相,是异常气候特征的主要原因;土壤墒情较好,低温使农作物生长期和牧草返青普遍推迟;青海湖至4月13日完全解冻,解冻期较2016年提前38 d,较近10年平均提前44 d,湖面面积达2001年以来同期最大值。Using meteorological obse^ration data, soil drought monitoring data of agriculture and animal husbandry, ecological and meteorological disaster monitoring satellite remote sensing data in Qinghai Province, the climate characteristics of abnormal weather and its influence since the spring of 2017 in Qinghai Province were analyzed. The results showed that the precipitation was more than the normal, the first soaking rain appeared in advance. The temperature decreased by stages,10 stations were up to the level of cold wave, 8 stations were up to the level of strong cooling. The arctic oscillation was negative phase in most of the time, which was the main reason of abnormal climate characteristics. The soil moisture was good, and the low temperature generally postponed the growth period of corps and returning green of grass. Qinghai Lake completely thawed on April 13th, which was 38 days earlier than that of 2016, and 44 days earlier than average of recent 10 years. The lake area reached the maximum since 2001 in the corresponding period.

关 键 词：气候特征 影响分析 青海省 2017年春季以来 

分 类 号：P466[天文地球—大气科学及气象学]