Wang Shi-gong
Lanzhou University
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Featured researches published by Wang Shi-gong.
Journal of Geographical Sciences | 2003
Wang Shi-gong; Wang Jinyan; Zhou Zijiang; Shang Kezheng; Yang De-bao; Zhao Zongsuo
The regional characteristics of dust events in China has been mainly studied by using the data of dust storm, wind-blown sand and floating dust from 338 observation stations through China from 1954 to 2000. The results of this study are as follows: (1) In China, there are two high frequent areas of dust events, one is located in the area of Minfeng and Hotan in the South Xinjiang Basin, the other is situated in the area of Minqin and Jilantai in the Hexi Region. Furthermore, the spatial distributions of the various types of dust events are different. The dust storms mainly occur in the arid and semiarid areas covering the deserts and the areas undergoing desertification in northern China. Wind-blown sand and floating-dust not only occur in the areas where dust storms occur, but also extend to the neighboring areas. The range of wind-blown sand extends northeastward and southeastward, but floating-dust mainly extends southeastward to the low-latitude region such as the East China Plain and the area of the middle and lower reaches of the Yangtze River. Compared with wind-blown sand, the floating-dust seldom occurs in the high latitude areas such as North Xinjiang and Northeast China. (2) The affected areas of dust storms can be divided into seven sub-regions, that is, North Xinjiang Region, South Xinjiang Region, Hexi Region, Qaidam Basin Region, Hetao Region, Northeastern China Region and Qinghai-Xizang (Tibet) Region. The area of the most frequent occurrence of dust storms and floating-dust is in South Xinjiang Region, and of wind-blown sand in the Hexi Region. In general, the frequency of dust events in all the seven regions shows a decreasing tendency from 1954 to 2000, but there are certain differences between various dust events in different regions. The maximum interannual change and variance of dust events during this time happened in South Xinjiang Region and Hexi Region. The dust events generally occur most frequently in April in most parts of China. The spring occurred days of dust events occupied 60–70% of the whole year in Hetao Region and Northeastern China Region. However, in South Xinjiang Region and North Xinjiang Region, which was less affected by monsoon climate, dust events may occur at any time of the year, less than 50% of the events in this region occur during spring. In the remaining three regions 50–60% of the dust events occur in spring of a year.The regional characteristics of dust events in China has been mainly studied by using the data of dust storm, wind-blown sand and floating dust from 338 observation stations through China from 1954 to 2000. The results of this study are as follows: (1) In China, there are two high frequent areas of dust events, one is located in the area of Minfeng and Hotan in the South Xinjiang Basin, the other is situated in the area of Minqin and Jilantai in the Hexi Region. Furthermore, the spatial distributions of the various types of dust events are different. The dust storms mainly occur in the arid and semiarid areas covering the deserts and the areas undergoing desertification in northern China. Wind-blown sand and floating-dust not only occur in the areas where dust storms occur, but also extend to the neighboring areas. The range of wind-blown sand extends northeastward and southeastward, but floating-dust mainly extends southeastward to the low-latitude region such as the East China Plain and the area of the middle and lower reaches of the Yangtze River. Compared with wind-blown sand, the floating-dust seldom occurs in the high latitude areas such as North Xinjiang and Northeast China. (2) The affected areas of dust storms can be divided into seven sub-regions, that is, North Xinjiang Region, South Xinjiang Region, Hexi Region, Qaidam Basin Region, Hetao Region, Northeastern China Region and Qinghai-Xizang (Tibet) Region. The area of the most frequent occurrence of dust storms and floating-dust is in South Xinjiang Region, and of wind-blown sand in the Hexi Region. In general, the frequency of dust events in all the seven regions shows a decreasing tendency from 1954 to 2000, but there are certain differences between various dust events in different regions. The maximum interannual change and variance of dust events during this time happened in South Xinjiang Region and Hexi Region. The dust events generally occur most frequently in April in most parts of China. The spring occurred days of dust events occupied 60–70% of the whole year in Hetao Region and Northeastern China Region. However, in South Xinjiang Region and North Xinjiang Region, which was less affected by monsoon climate, dust events may occur at any time of the year, less than 50% of the events in this region occur during spring. In the remaining three regions 50–60% of the dust events occur in spring of a year.
Plateau Meteorology | 2018
Kang Yanzhen; Jin Shuanglong; Peng Xindong; Yang Xu; Shang Kezheng; Wang Shi-gong
在2016年7月19-21日华北特大暴雨过程初步分析的基础上,采用中尺度数值模式WRF3.6.1中16种微物理参数化方案对该过程进行了数值模拟,并分为单参和双参两组对结果进行评估分析。结果表明,该过程为伴随低涡发展的强对流降水,持续时间长、范围广、总量大。大部分微物理方案对降水的分布模拟效果较好,能够再现此次特大暴雨过程;随模拟时间延长,方案间的差别变大,且单参方案对各量级降水的模拟差别比双参方案显著,方案间雨水混合比、固态水凝物以及垂直速度的差别均大于双参方案,整体效果不如双参方案。综合来看,SBU_YLin方案对于此次特大暴雨过程模拟效果最好,对降水量级和落区的模拟都接近实况。
Journal of Desert Research | 2006
Han Jing-jing; Wang Shi-gong; Shang Kezheng; Qi Bing; Shang Bao-yu
Journal of Desert Research | 2005
Zhao Qing-yun; Zhang Wu; Wang Shi-gong; Liu Xin-wei
Journal of Agro-Environment Science | 2009
Dong JiYuan; Wang Shi-gong; Shang Kezheng
Journal of Lanzhou University | 2012
Xiong Guang-jie; Wang Shi-gong
Journal of Desert Research | 2007
Yin Xiao-hui; Wang Shi-gong
China Environmental Science | 2013
Wang Shi-gong
Journal of Lanzhou University | 2012
Wang Shi-gong
Journal of Desert Research | 2011
Wang Shi-gong