Variations of snow and ice in the past and at present on a global and regional scale
To study the role of snow and ice in the global watercycle and in the world climatic system, research methods should be further standardized and inform from different region integrated. Representing these field of research, the International Commission on Snow and Ice (ICSI) has already made some guideline studies on the runoff prediction and evaluation. The present document summarizes the latest achievements in snow and ice research undertaken in view of the main objectives of the International Hydrological Program.