西宁地区界限温度变化特征分析  

Analysis of the Change Characteristic of Critical Temperature in Xining

作　　者：黄晨 马辉 洪震坤 HUANG Chen;MA Hui;HONG Zhenkun(Xining Meteorological Bureau,Xining,Qinghai Province,810016 China;Hainan Prefecture Meteorological Bureau,Hainan Tibetan Autonomous Prefecture,Qinghai Province,813000 China;Zadoi County Meteorological Bureau,Yushu,Qinghai Province,815300 China)

机构地区：[1]西宁市气象局,青海西宁810016 [2]海南州气象局,青海海南州813000 [3]杂多县气象局,青海玉树815300

出　　处：《科技资讯》2024年第7期186-188,共3页Science & Technology Information

摘　　要：通过分析研究了青海省西宁市1960—2018年近59年的界限温度初、终日,界限温度期间持续日数变化趋势,界限温度初、终日以及期间持续日数与年平均气温的相关性和界限温度期间的积温变化趋势。得出了以下结论:(1)界限温度初日整体呈提前趋势,终日整体呈推后趋势,这就表明随着气温升高,界限温度日数增加,根据各界限温度的初终日变化来看,西宁地区春秋季整体呈增暖趋势;(2)伴随温度的升高,界限温度初终日之间的天数也随之增加;(3)通过分析有效积温和活动积温,根据气候倾向率变化看,大通增温最为明显,湟中次之,湟源最低。This paper analyzes and studies the variation trend of the initial and final days of critical temperature and the duration of days during the critical temperature period,the correlation between the initial and final days of critical temperature and the duration of days during the critical temperature period and annual average temperature,and the variation trend of acumulated temperature during the critical temperature period in the past 59 years from 1960 to 2018 in Xining City,Qinghai Province,and draws the following conclusions.(1)The initial day of critical temperature showed a tendency to advance overall,and its final day showed a tendency to delay overall,which showed the days of critical temperature increased with the rising of temperature.According to the variation of the initial and final days of each critical temperature,it showed a tendency to warm in spring and autumn in Xining overall.(2)As temperature rose,and the days between the initial day and final day of critical temperature increased.(3)Through the analysis of the effective accumulated temperature and the active accumulated temperature,and according to the variation of the climate inclination rate,it can be seen that the warming of Datong was the most obvious,followed by Huangzhong,and Huangyuan was the lowest.

关 键 词：界限温度 趋势分析 有效积温 活动积温 

分 类 号：S161.22[农业科学—农业气象学]