Based on climatic data of precipitation and temperature of 77 meteorological stations covering 1958-2001 in the northwestern China(the area is within the north of 35°N and west of 105°E in China) as well as the NCAR/NCEP reanalyzed data,and by using the methods of regressive analysis and composition analysis,the inter-annual variation of the precipitation over the northwestern China as well as its relationship with global warming were studied.
The very eddy at 500 hPa over the Northern Hemisphere is obvious and shallow, the west Pacific subtropic high is strong, there is a convergence of anomaly field of summer vector wind at 700 hPa over northwestern China, the main negative anomaly center of summer OLR is also over northwestern China, and the negative anomaly of SST is mainly over the east equatorial Pacific Ocean.
The northern forests of China are mainly included two northern forest regions in the Northeast and the Northwest of China.
Two NOAA-AVHRR five-band images, taken at Shapotou northwest of China when soil surface temperature approximated to the highest and lowest of the region, were applied in combination with the ground surface information measured synchronously.
Xinjiang, the largest province region in China, is located in the northwest of China.
A study on landscape mosaic structure in urban-rural area in Northwest of China with RS and GIS
Study of the intensity attenuation law in the East China Plain and the northwest of China