近54 a中国西北地区来气温和降水的时空变化特征

doi:10.13866/j.azr.2018.01.09

Abstract

Abstract: Based on the data of temperature and precipitation observation collected from 191 surface meteorological stations in Northwest from 1961 to 2014，using many methods such as linear trend, running means, the accumulative anomalies and IDW to study the temporal and spatial characteristics of temperature and precipitation of Northwestern China. The results showed that the average temperature appears rising trend and the rate of rise is most significant in winter. The trend of maximum temperature extremes and minimum temperature extremes are the same as average temperature which are manifesting rising trend. The amount of precipitation also increasing and the trend is more significant in recent years. Precipitation mainly occurs in summer ，in particular ，the winter rainfall has been increasing rapidly since enter into 21^st century. The high annual temperature is concentrated on southern Xin Jiang，southeast of Qilian Mountains .What’s more，the most significant warming areas are located in Junggar Basin and the southwest of Tian Shan . Precipitation showed a decreasing trend from east to west. Abundant precipitation concentrate on the northeastern Qilian Mountains while there is little precipitation in the South Xinjiang and the western Tarim Basin and north Xin Jiang are the most significant wetter areas. From the temporal and spatial characteristics of temperature and precipitation, the northwest of china is translating into warm and wet.

Key words: Temperature, Precipitation, Characteristics of climate change, temporal and spatial

SHANG Sha-Sha, LIAN Li-Shu, MA Ting, ZHANG Kun, HAN Tuo. The temporal and spatial characteristics of Temperature and Precipitation in Northwestern China in Recent 54 Years[J]., 2018, 35(01): 68-76.

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The temporal and spatial characteristics of Temperature and Precipitation in Northwestern China in Recent 54 Years

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