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Based on the data of meteorological and hydrological collected from 1961 to 2004, the cause have been analyzed on the lowest runoff in the upper reaches of yellow River in recent years in this paper. The results indicate runoff recorded exhibited slight decrease trend from 1961 to 2004, but there is a notable decrease trend of runoff since 1990. It is noteworthy that low stream continued 15 years...
Based on the gridded monthly air temperature data and the sea surface temperature (SST) data, the influence of SST change on two global warning periods in the 20th century over the arid central Asia is analyzed. The results show that the SST anomaly produces obvious effect on temperature. The winter temperature of the arid central Asia is much warmer (cooler) when high positive (negative) SST anomaly...
In the present study, on the basis of the statistics and diagnosis methods, the sand-dust events of Northwest China are studied by the use of 135 stations monthly data from National Meteorological Information Center during 1960-2005. The 500 hPa height field and the sea surface temperature (SST) data are from NCEP/NCAR and NOAA, respectively. Results show that the climatic characteristics of sand-dust...
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