Attribute Analysis of Aridity Variability in North Xinjiang, China

作者：Wu, Yanfeng; Zhang, Guangxin^*; Shen, Hong; Xu, Y. Jun; Bake, Batur

来源：Advances in Meteorology, 2016, 2016: 9610960.

DOI：10.1155/2016/9610960

• POTENTIAL EVAPOTRANSPIRATION CHANGES
• CLIMATE-CHANGE
• SPATIOTEMPORAL CHARACTERISTICS
• WATER-RESOURCES
• INDEX
• PRECIPITATION
• SENSITIVITY
• RUNOFF
• TEMPERATURES
• VARIABLES

Identifying the dominant meteorological factors affecting aridity variability can improve our understanding of climate change and its future trend in arid and semiarid regions. This study investigated the spatiotemporal aridity variability in North Xinjiang, China, from 1961 to 2013, based on the UNESCO aridity index (precipitation/potential evapotranspiration), and analyzed its association with meteorological factors. The results suggest that North Xinjiang is becoming more humid with an increasing trend in aridity index. Precipitation, temperature, and relative humidity have positive correlation with aridity, and evapotranspiration, sunshine hours, and wind speed have negative correlation with aridity. Wind speed and sunshine hours have a higher sensitivity and more contribution to aridity. This study provides an understanding of the effect of recent climate change on drought in northwest China.

• 出版日期2016
• 单位新疆农业大学; 中国科学院