山頂と平衡線(EL)との高度領域的な位置関係 : ヨーロッパアルプスでの事例研究I

概要

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Altitudes of EL (Equilibrium line), i.e., ELAs in the European Alps are dispersed above timberline, suggesting that they are in close association with the altitude of mountain summit On the other hand, mountains clad with glacier belong to either of two altitudinal morphogenetic zones, i.e., Subzone IIa(3,354m≦H<4,054m) or Subzone IIb(2,654m≦H<3,354m) in descending order. By a regression analysis, it has revealed that the ELAs of mountains belonging to the former zone are not influenced by mountain summits, while those of mountains belonging to the latter zones are governed by mountain summits. This fact indicates that the ELAs of mountains belonging to Subzone II a can be converted into temperature data, and also that the altitudinal threshold of mountain summits in which the character of ELAs is decided, is 3,354m.
信州短期大学の論文
2004-12-25