Accuracy of Temperature and Precipitation Reproduction in Russia with Global Climate Archives

E. L. Zhil’tsova and O. A. Anisimov

Four climate archives at the regular grid points organized on the basis of interpolation and model reanalysis of observational data are considered. The regional differences between the air temperature and precipitation fields are estimated, the comparison with the observational data at 455 weather stations over the Russian territory and adjacent countries is considered. It is noted that global archives give biased estimates of the monthly and seasonal precipitation amount, annual mean air temperature and temperature sums of the warm and cold seasons. The maps of errors of climate characteristics for each of the archives are calculated and compiled, probable reasons for poor accuracy are analyzed.