METHOD FOR DEMARCATING A GEOGRAPHICAL TRANSITION ZONE

The present invention discloses a method for demarcating a geographical transition zone, and relates to the technical field of geography. The method includes: selecting a climate index for demarcating a transition zone; performing spatial interpolation of the climate index by a geostatistical analysis method in geography; then finding an average position of a changing isoline of each climate index by an average - standard deviation method in statistics; and finally obtaining a dividing line of the transition zone and a range of a climate stable region, a sensitive region and an anomalous region in the transition zone. The present invention finds an overall change in the climate indexes over the years from a year-by-year change based on a long-term series of historical meteorological observation data. The method overcomes the deficiency that conventional calculations using a multi-year average miss an extreme year, and the method is more comprehensive and objective. 1 of 17 Process climate index data Visually represent a processing result Extract an isoline of each climate index, and determine an average line of each climate index Determine a standard deviation line, assign a value to each region, and eliminate an unstable climate index Add assigned layers together to obtain a range of a geographical transition zone