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[1]LIU Dandan,LIANG Feng,WANG Wanzhao,et al.Spatial and Temporal Variations of Precipitation in Northeast China from 1901 to 2010 Based on GPCC Data[J].Research of Soil and Water Conservation,2017,24(02):124-131.

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Spatial and Temporal Variations of Precipitation in Northeast China from 1901 to 2010 Based on GPCC Data

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 24 Number of periods: 2017 02 Page number: 124-131 Column: Public date: 2017-04-28

Title:: Spatial and Temporal Variations of Precipitation in Northeast China from 1901 to 2010 Based on GPCC Data

Author(s):: LIU Dandan¹, LIANG Feng¹, WANG Wanzhao², GUO Baihui¹, YU Yue¹, YU Fangjian¹, SU Hua¹; 1. Chaoyang Meteorological Administration, Chaoyang, Liaoning 122000, China;
2. Institute of Meteorological Sciences of Liaoning Province, Shenyang 110166, China

Keywords:: GPCC data; northeast China; spatial and temporal variation

CLC:: P467

DOI:: -

Abstract:: Precipitation is one of the most important part for global energy and water cycle as well as the key problem for study of climate change and variability. However, there are some uncertainties of precipitation change while comparing with the widespread and sustained global warming trend. The results show that precipitation had significant regional differences and decadal variability in recent 50 years of China. Since the late 1970s summer precipitation has being decreasing in north China and the Yellow River Basin. But in the middle and lower Yangtze River Basin to south China precipitation is significantly increasing. These factors lead to the spatial pattern of flooding in the south and drought in the north. However, we found that lots of research works for precipitation are limited in recent 50 or 60 years because of the length of observed data. Aiming at these problems, domestic and foreign research institutions paid great efforts to create some longer sequence global grid precipitation datasets, and used these datasets to carry out a lot of innovation research. So in this paper, the variation of precipitation was studied from 1901 to 2010 in northeast China by using GPCC data. The results indicated that GPCC data showed significant correlation with the station data. GPCC show that the precipitation from 1901 to 2010 is slight increasing in northeast China, and it displays similar spatial distribution of precipitation to station data. There are two relative drier periods from 1901 to 2010. The first period is from 1901 to 1930, and the other one is from 1971 to 2010, while the relative wet period is from 1931 to 1970. There is decreasing trend of autumn in 1901—2010, but precipitation is increasing in the other seasons. GPCC data have the annual, decadal and multi-decadal time scales cycle. Finally, we hope this study can help deepen understanding of the climate change in northeast China, and provide reference for research on climate, ecology and hydrology by using the other relevant data as well.

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