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[1]YANG Lu,ZHANG Bingbing,WANG Qi,et al.Spatiotemporal Distribution of Evaporation in Jilin Province[J].Research of Soil and Water Conservation,2019,26(01):197-202.

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Spatiotemporal Distribution of Evaporation in Jilin Province

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 26 Number of periods: 2019 01 Page number: 197-202 Column: Public date: 2019-02-28

Title:: Spatiotemporal Distribution of Evaporation in Jilin Province

Author(s):: YANG Lu¹, ZHANG Bingbing¹, WANG Qi², WANG Yanping³, GAO Lili¹, SHI Kuiqiao¹; 1. Jinzhou Ecology and Agriculture Meteorological Center, Jinzhou, Liaoning 121001, China;
2. Institute of Meteorology Science of Jilin Province, Changchun 130062, China;
3. Meteorological Information Network Center of Jilin Province, Changchun 130062, China

Keywords:: climate change; variation trend of evaporation; Gaoqiao formula; Jilin Province

CLC:: P412.13

DOI:: -

Abstract:: Base on the daily meteorological observation data from 1971 to 2010 in Jilin Province, the spatial and temporal distribution characteristics were analyzed in the pan evaporation and actual evaporation by using the accumulated anomaly, climate tendency coefficient, climatic trend rate and Gaoqiao formula methods. The results were as follows. The pan evaporation rate decreased significantly from 1971 to 2010, especially in spring. In the other three seasons, the rate showed a weak increasing tendency. In terms of space, the pan evaporation in Jilin Province was decreasing in the eastern part and parts of the central region and increasing in the western part. However, there were certain changes in different seasons. The actual evaporation accounted for 25% of the pan evaporation in Jilin Province with a slight increasing trend over time. Among the many meteorological factors affecting the pan evaporation, the major factors were wind speed and daily temperature difference. The actual evaporation showed the significant response to the precipitation and daily temperature difference, the daily temperature difference was the more significant factor affecting the actual evaporation.

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