Using the autumn temperature and precipitation dada during 1959-1998 in Xinjiang, the basic features of autumn climate change in Tianshan mountainous area are analyzed and compared with those in the southern and northern Xinjiang. The main results obtained are as follows: (1) The similarity of warm-cold stage of autumn mean temperature between Tianshan mountainous area and the northern Xinjiang is better than those between Tianshan mountainous area and the southern Xinjiang. But the wet-dry stage of autumn precipitation in Tianshan mountainous area and the northern Xinjiang is different from those in the southern and northern Xinjiang. (2) The synchronous change of spatial distribution of autumn mean temperature is the best in the northern Xinjiang, the worst in the southern Xinjiang and better in Tianshan mountainous area. The synchronous change of spatial distribution of autumn precipitation is the best in the southern Xinjiang, the worst in Tianshan mountainous area and better the northern Xinjiang. ⑶ From the 1960s to the 1990s, autumn mean temperature shows wavy warming in Tianshan mountainous area and continuously increasing trend in the southern and northern Xinjiang. Autumn mean temperature is the highest in the 1990s,and 1.0℃,0.7℃,0.2℃ above the mean for 1961-1990 for Tianshan mountainous area, the southern Xinjiang and the northern Xinjiang respectively. Autumn precipitation in the 1980s is the most for the three large regions, and 17%, 16%, 34% above the mean for 1961-1990 for Tianshan mountainous area, the northern Xinjiang and the southern Xinjiang respectively. Autumn precipitation is all bellow the average for 1961-1990 for the three large regions in the 1960s, 1970s, and 1990s.
YUAN Yu-Jiang, WEI Wen-Shou, MU Gui-Jin
. Features of Autumn Climate Change in Tianshan Mountainous Area for the Recent 40 Years and Comparison with Those in the Southern and Northern Xinjiang[J]. SCIENTIA GEOGRAPHICA SINICA, 2004
, 24(6)
: 674
-679
.
DOI: 10.13249/j.cnki.sgs.2004.06.674
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