【摘要】 <正> 天山乌鲁木齐河源1号冰川(下称为1号冰川)物质平衡,谢自楚、张金华等先后作过研究。本文在上述研究的基础上,结合最近三年(1979—1982年)的资料,并利用距1号冰川2.5公里,海拔高度3588.6米的天山气象站资料(1958年9月—1982年8月),试图讨论二十四年来1号冰川的物质平衡变化与气候的相互关系。更多还原

【Abstract】 The data of the last 24 years are summarized and the relationship between the mass balance changes of glacier No.l and climate is studied. It is shown that the mass balance of the glacier is controlled by positive accumulated temperature and annual precipition. The altitude of equilibrium line of this glacier is not only dependent on the annual precipitation but also on the annual mean temperature, the continued time of positive temperature period and the seasonal distribution of precipitation. A regression equation between the altitude of equilibrium line and the above elements is given. Based on annual changes of precipitation and the positive accumulated temperature, the climate in the’headwater region of Urumqi River may be divided into five types, i.e. dry-cold, dry-temperate, wet-cold, wet-temperate and temperate-wet patterns.更多还原