College of Construction Engineering��Jilin University��Changchun 130026��China

Glacier-lake outburst debris flow ( GLODF) ��unique in high altitude mountains where modern glacier is active��is significantly large in its scale of time and space��and strong in power of destroy�� Following the world's becoming warmer��GLODF frequency gradually rises�� In late years��quantitative estimation methodologies has been put into use of mass GLODF estimations�� To improve former methodologies��this article suggests that the glacier ( or the massif) on the trailing edge and the moraine dam are the two major systems providing independent glacier lake outburst possibilities�� Bucket Effect exists in GLODF issues�� Therefore focusing on the relatively unstable one of the above two provides better accuracy in estimation on GLODF possibility�� Thus��this article summarizes method of presort through specific GLODF evaluation��