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[1]LIU Pengfei,LIU Dandan,LIANG Feng,et al.Comparison the Adaptability of CFSR, MERRA, NCEP Reanalysis Precipitation Data and Observation in Northeast China[J].Research of Soil and Water Conservation,2018,25(04):215-221.

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Comparison the Adaptability of CFSR, MERRA, NCEP Reanalysis Precipitation Data and Observation in Northeast China

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 25 Number of periods: 2018 04 Page number: 215-221 Column: Public date: 2018-06-13

Title:: Comparison the Adaptability of CFSR, MERRA, NCEP Reanalysis Precipitation Data and Observation in Northeast China

Author(s):: LIU Pengfei¹, LIU Dandan¹, LIANG Feng¹, WANG Wanzhao², YU Yue¹, GUO Baihui¹, YU Fangjian¹, BI Minglin¹; 1. Chaoyang Meteorological Administration, Chaoyang, Liaoning 122000, China;
2. Institute of Meteorological Sciences of Liaoning Province, Shenyang 110166, China

Keywords:: reanalysis data; CFSR; MERRA; NCEP; northeast China; precipitation

CLC:: P468;P426.6

DOI:: -

Abstract:: Based on monthly precipitation data of 84 weather stations in northeast China from 1980 to 2010, we compared the differences of precipitation between reanalysis data and observation by using correlation analysis, deviation comparison and climate tendency. The results show that the three analysis data-sets (CFSR, MERRA and NCEP) can reflect the distribution of precipitation in northeast China. But CFSR and MERRA are better than NCEP in describing the details of precipitation. At the annual scale, the variation ranges of CFSR and MERRA are closer to observation data than NCEP, while the difference between MERRA annual precipitation and observation is smallest, which is 42.4 mm. It is found that there are some differences in significant correlation between three reanalysis data-sets and observed data. Firstly, the correlation of CFSR and observed data in spring, summer and autumn is better than winter. However, the correlation of MERRA and observed data is better in spring and autumn. Secondly, the correlation between CFSR, MERRA and observed data is better than NCEP in spring, summer and autumn. But in winter, MEERA and NCEP are better than CFSR. At the monthly scale, the mean absolute deviation of MERRA and observed data is the smallest among three data-sets, which is 17.5 mm. And the mean absolute deviations between CFSR, NCEP and observed data are 20.7 mm and 22.6 mm.

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