关键词: “地气图”方法, 旱涝预测, 西北区

Abstract:

Using the monthly soil temperature date in the depth of 3. 2m during 1980一2000 in 141 stations and theprecipitation date duri ng 1961一2000 in 160 stations ,through the earth一atmosphere chart method ,thepaper analyzed"geothermal vortexes"in Northwest China .The results show that "geothermal vortexes”in Northwest China have an average horizontal scale of 560km or so and a life span 4. 3 months approximately.  Moreover .the monthly precipitation totals are more than normal is well corre}onding to the "geothermal vortexes”,which strongly supports the conceptual model indicating the couple between the earth and the atmo}here proposed in reference[1][2].

Key words: earth一atomsphere chart method, dryness and wetness prediction , Northwest China