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通过1991—2001年期间在青藏高原东部及周边地区的GPS测量,获得该地区不同参考框架下的地壳运动速度场,其测量的速度精度高于2mm/yr。印度板块与华北地块之间的地壳形变分为喜马拉雅及高原南部、高原中部(拉萨—格尔木)和高原北部(格尔木—金塔)三部分,它们分别吸收了印度板块与欧亚板块汇聚速率的43%、24%和32%。在欧亚框架下和相对于成都,印度板块和华南地块之间存在着以东喜马拉雅构造结为轴心的顺时针巨型涡旋构造———滇藏涡旋构造,运动速度分别为26～6mm/yr和24～7mm/yr,总体上从北东方向转变为南东和南西方向,有别于青藏高原中部的北东方向。滇藏涡旋和东喜马拉雅构造结的形成与南迦巴瓦 阿萨姆“犄角”的楔入作用有关。
Through the GPS measurements in the eastern and surrounding areas of the Qinghai-Tibetan Plateau during 1991-2001, the crustal movement velocity fields under different reference frames in the region are obtained, and the measured velocity accuracy is higher than 2mm / yr. The crustal deformation between the Indian plate and the North China block is divided into three parts: the Himalayas and the southern part of the plateau, the central part of the plateau (Lhasa-Golmud) and the northern part of the plateau (Golmud-Uttar Pradesh), which respectively absorb the convergence rate of the Indian and Eurasian plates 43%, 24% and 32%. Under the Eurasian framework and relative to Chengdu, between the Indian Plate and South China Block, there is a clockwise giant vortex structure centered on the east Himalayan structural knot --- the Yunnan-Tibet vortex structure with the moving velocity of 26 ~ 6mm / yr and 24 ~ 7mm / yr, respectively, changing from NE direction to NE direction and NW direction as a whole, which is different from the NE direction in the central part of the Qinghai-Tibet Plateau. The formation of the Yunnan-Tibet vortex and the East Himalayan structural knot is related to the wedging effect of the Assam of Namjagbarwa.