羌塘地区冰斗空间分布数据（第四纪）

圆状形态代表古冰川和古气候的特征。本研究对以大陆性气候为主的青藏高原（TP）中部的70个圆圈进行了定位和分析。结果表明，从西北到东南，冰斗的尺寸（即长度、宽度和面积）增加，而冰斗底板高度减小。一个可能的原因是印度夏季季风在东南部造成的高降水率。比较了南部江迪山区西部、中部和东部地区的冰斗数量和规模。这一比较表明，印度夏季季风的增强可以提高“冰斗密度”（即单位面积的冰斗数）的价值，促进冰川发展为山谷型，并限制冰斗的扩大。

Circular landforms serve as indicators of paleoglacial and paleoclimatic characteristics. In this study, 70 cirques in the central Tibetan Plateau (TP), a region dominated by continental climate, were georeferenced and analyzed. The results show that the dimensions (i.e., length, width and area) of the cirques increase from the northwest to the southeast, while the elevation of their floors decreases. One potential cause is the high precipitation rate induced by the Indian Summer Monsoon (ISM) in the southeastern region. The number and size of cirques in the western, central and eastern parts of the southern Jiangdi Mountains were compared. This comparison indicates that the intensification of the Indian Summer Monsoon can increase the value of "cirque density" (i.e., the number of cirques per unit area), promote the development of glaciers into valley-type glaciers, and restrict the expansion of cirques.