1 兰州交通大学测绘与地理信息学院，甘肃 兰州 730070；
2 地理国情监测技术应用国家地方联合工程研究中心，甘肃 兰州 730070；
3 甘肃省地理国情监测工程实验室，甘肃 兰州 730070
收稿日期: 2019-06-14
修回日期: 2019-09-20
网络出版日期: 2020-05-25
基金资助
国家重点研发计划资助项目(2017YFB0504203)；国家自然科学基金资助项目（41671447，41861055）；国家青年基金资助项目(41801395)；兰州交通大学优秀平台支持（编号201806）资助
Spatio-temporal analysis of gale concentration in Xinjiang
1 Faculty of Geomatics,Lanzhou Jiaotong University,Lanzhou 730070,Gansu,China;
2 NationalLocal Joint Engineering Research Center of Technologies and Applications for National Geographic State
Monitoring,Lanzhou 730070,Gansu,China; 3 Gansu Provincial Engineering Laboratory for National Geographic State Monitoring,Lanzhou 730070,Gansu,China
Received date: 2019-06-14
Revised date: 2019-09-20
Online published: 2020-05-25
王玉竹, 闫浩文, 王小平, 何毅
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新疆大风集中程度时空特征分析[J]. 干旱区地理, 2020
Based on gale data collected at 64 meteorological stations in Xinjiang,China between 2003 and 2017,the spatio-temporal characteristics of the concentration of gale days were studied by considering cumulative gale days,continuous gale days,gale concentration periods,and gale concentration degree as indicators.The results show as follows:(1) gale weather mainly occurs from April to July in Xinjiang,and the number of continuous gale days is usually 1-3 days.(2) In the past 15 years,the frequency of occurrence of gale weather has decreased gradually; the higher the frequency,the greater the decreasing range,but there is a trend towards extreme development in winter.(3) Gale weather is mainly concentrated in Northern and Eastern Xinjiang,and periods of more than three consecutive days of gale weather are mostly noted in the valleys of Northern Xinjiang.(4) The spatial distribution of gale weather in Xinjiang has gradually concentrated from 2003 to 2017,and the concentration period has also gradually advanced.(5) Gale weather is more scattered in the western part of Southern Xinjiang,the western part of Northern Xinjiang,and the central and eastern parts of Eastern Xinjiang,whereas the southern and northern parts of Southern Xinjiang are characterized by more concentrated gale weather.(6) Gale weather occurs relatively early in the southeast of Southern Xinjiang,the north of Northern Xinjiang and the northeast of Eastern Xinjiang,whereas gales occur relatively late in the northwest of Southern Xinjiang and west of Eastern Xinjiang.(7) The wind concentration degree and concentration period in Xinjiang exhibits an obvious aggregation phenomenon.The areas with the highest concentration are located in the south and middle of Southern Xinjiang,whereas areas with lower concentration are located in north and east Xinjiang.
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