[1]REN Xiuzhen,XU Guanglai,LIU Yongting,et al.Characteristics of Spatiotemporal Variation of Climate in Anhui Province in Recent 56 Years[J].Research of Soil and Water Conservation,2018,25(05):287-294.
Copy
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
25
Number of periods:
2018 05
Page number:
287-294
Column:
Public date:
2018-09-06
- Title:
-
Characteristics of Spatiotemporal Variation of Climate in Anhui Province in Recent 56 Years
- Author(s):
-
REN Xiuzhen1,2, XU Guanglai1,2, LIU Yongting1,2, YANG Xiancheng1,2
-
1. School of Geography and Tourism, Anhui Normal University, Wuhu, Auhui 241002, China;
2. Anhui Key Laboratory of Natural Disaster Process and Prevention, Wuhu, Auhui 241002, China
-
- Keywords:
-
climate change; ENSO; temporal and spatial variation; Anhui Province
- CLC:
-
P467
- DOI:
-
-
- Abstract:
-
Based on historical data (1960-2015) on daily temperature and precipitation obtained from 17 meteorological stations in Anhui Province and 9 meteorological stations around Anhui Province, we made a comprehensive investigation of the change characteristics of the climate using climate tendency method, Mann-Kendall test method, moving t-test and cross wavelet method, and the relationship between the ENSO and climate factors was discussed. The results showed that, firstly, annual average temperature rose obviously, maximum variation was 0.3℃/10 a in spring; precipitation increased slightly, but the seasonal variation was larger, especially in summer and winter; in spring, summer, autumn and winter, the rise of the annual temperature was significant, the large rise of monthly temperature occurred in May, June, October and February, respectively, while the precipitation change occurred in April, August, September and January, respectively; secondly, the temperature in the central region was higher than that in the south and the north, and the low temperature zone was found in the Huangshan area; the temperature changes in all areas in spring were significant, and the summer changes were not obvious; the precipitation decreased with the increase of latitude, and the Huangshan Mountain area was the region with the high precipitation; and the trend of winter and summer was obvious in different regions; thirdly, abrupt change of average annual temperature occurred in 1994, significant rise in temperature was 0.8℃ after abrupt change; the abrupt changes occurred in the three seasons except the summer, the average spring temperature change was most obvious and significantly increased by 1.1℃ after abrupt change. The abrupt change of precipitation occurred in the spring and autumn period, no abrupt changes were found in the summer and winter; finally, the temperature, precipitation and ENSO cycle had a significant cycle of 3~5 years, mainly concentrated in the 1960s, 1980s and 1990s, and the annual precipitation cycle relatively lagged compared with the average annual temperature cycle.