沙漠与绿洲气象2018，Vol.12Issue(1)：21-28,8.DOI:10.12057/j.issn.1002-0799.2018.01.004
乌鲁木齐城市热岛强度的日变化和季节特征
The Daily Temperature Characteristics of the Intensity of Urban Heat Island in Urumqi and Seasonal Changes
摘要
Abstract
Based on hourly temperature data set of 28 automatic observation stations in Urumqi from 2013 to 2014,the diurnal and seasonal variations of temperature in Urumqi are analyzed.The results show that:(1)The highest frequency of maximum(minimum)daily temperatures appeared in 17:00(8:00)Beijing time,with the frequency over 20%(30%).(2)The maximum(minimum) value of intensity of the urban heat island usually occurred at night(day),with the maximum (minimum)value is about 1.5(0.3)℃ at 7:00 am(16:00 pm).(3)The appearance time of the maximum temperature in the rural was the same as that in the urban.The appearance time of the minimum temperature in the rural was the same as that in the urban except in winter.(4)For the three stages of intensity of the urban heat island:the UHII shows increase between 8 O'clock and 17 O'clock,and shows rapid increase from 17 O'clock to 22 O'clock,then stable in strong phases after 22 O'clock.(5)The largest(lowest)value of pentad average for the UHII occurred in the 72th (67th)pentad,with the value was 1.53(0.33)℃.(6)Generally speaking,the strength of urban heat island was stronger in night of spring(April),and relatively weaker in summer(July).The UHII was weakest in the day time of autumn(September).The UHII was the strongest in winter(January) than that in other seasons.关键词
城市热岛/乌鲁木齐/气温/日变化/季节变化Key words
urban heat island/Urumqi/temperature/intraday changes/seasonal changes分类
天文与地球科学引用本文复制引用
瓦力江·瓦黑提,任国玉,孙秀宝..乌鲁木齐城市热岛强度的日变化和季节特征[J].沙漠与绿洲气象,2018,12(1):21-28,8.基金项目
国家自然科学基金面上项目"城市化对中国地面气温日差的影响"(41575003). （41575003）
