摘要
用乌鲁木齐市气象站1951—2015年逐日气温资料,以日最高气温及其升温幅度为指标,整理出乌鲁木齐市近65 a升温过程数据库。升温过程分为5个等级,分析了各级升温过程发生频数、持续日数、过程不同时段升温幅度、过程最高气温、过程最高气温距平偏高幅度等要素气候特征。1951—2015年,乌鲁木齐市出现升温过程5677次,平均每年87.3次。升温过程的持续日数平均为2.14 d,其中持续1 d的过程占43.0%。1951—2015年,乌鲁木齐市过程升温幅度平均为5.76℃;过程最大24、48和72 h升温幅度平均值分别为3.72、6.12和8.23℃;过程最高气温平均值为14.52℃,带有显著的季节背景特征;过程最大日气温距平的平均值为2.93℃。
Using the daily temperature data at Urumqi meteorological station during 1951-2015 and defining an index based on the daily maximum temperature and its increasing magnitude, the database of temperature rising processes in Urumqi city for recent 65 years was established. The climatic characteristics, such as the frequency of rising process, consecutive days and increasing magnitude were investigated at different 5 levels of temperature rising processes, There were 5677 temperature rising processes, and averaged 87.3 temperature rising processes each year during 1951-2015. The averaged consecutive days of temperature rising process were 2.14 days with 43.0% of the processes lasting one day. The averaged increasing magnitude of temperature rising processes was 5.76℃ . The maximum increasing magnitude of temperature rising processes in 24 h, 48 h and 72 h was 3.72 ℃ ,6.12 ℃ and 8.23℃ respectively . The averaged maximum temperature of the temperature rising processes was 14.52 ℃ and its maximum daily temperature anomaly was 2.93 ℃.
作者
毛炜峄
张祖莲
MAO Weiyi ZHANG Zulian(Institute of Desert Meteorology, China Meteorological Administration, Urumqi 830002, China Center of Central Asia Atmospheric Science Research, Urumqi 830002, China Information Centre of Xinjiang Xingnong Net,Xinjiang Meteorological Bureau, Urumqi 830002, China)
出处
《沙漠与绿洲气象》
2016年第6期11-18,共8页
Desert and Oasis Meteorology
基金
中央级公益性科研院所基本科研业务费专项资金项目(IDM201502)"新疆区域降温过程及极端低温事件的年
季定量评估研究及应用"资助
关键词
升温过程
频数
持续日数
强度
乌鲁木齐
temperature rising process
frequency
consecutive days
intensity
Urumqi
