[1]LIANG Feng,LIU Dandan,WANG Wanzhao,et al.Analysis on the Trend of Variation of Summer Precipitation in Northeast China During the Period from 1961 to 2013[J].Research of Soil and Water Conservation,2015,22(05):67-73.
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Analysis on the Trend of Variation of Summer Precipitation in Northeast China During the Period from 1961 to 2013
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
22
Number of periods:
2015 05
Page number:
67-73
Column:
Public date:
2015-10-28
- Title:
- Analysis on the Trend of Variation of Summer Precipitation in Northeast China During the Period from 1961 to 2013
- Keywords:
- northeast China; summer precipitation; variation trend; Mann-Kendall
- CLC:
- P467
- DOI:
- -
- Abstract:
- Based on daily precipitation data obtained from 84 meteorological stations in northeast China during the period from 1961 to 2013, we analyzed the summer precipitation characteristics, the features of precipitation days and intensity characteristics of different grades of summer precipitation events. The results indicated that both summer precipitation days and light rain days presented the significant decreasing trend, while light rain days decreased by -2.5～-1 days/decade during the period from 1961 to 2013. The moderate rain day tendency rate also showed the decline trend, especially in eastern and southern parts of northeast China. The heavy rain and rainstorm day tendency rates declined in the middle of Heilongjiang Province, northwest Jilin Province and Liaodong Peninsula, and it presented the rising trend in the other areas. In recent 53 years, the light rain intensity presented the slight increasing trend with 0～0.1 mm/decade in eastern and southern parts of northeast China. However, the intensity of moderate and heavy rain showed the decline trend in most areas. The variation coefficients of heavy rain and rainstorm days were greater than light rain and moderate rain days. It could be seen that heavy rain and rainstorm days became unstable. These changes will lead to the increasing risk of flood disaster in this region.
- References:
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1900-01-01