Some statistic characteristics of ''Underground Hot Vortex'' in China during 1980-1993 .1. Spatial-temporal distribution of Underground Hot Vortex

被引:9
作者
Tang, MC
Gao, XQ
机构
[1] Lanzhou lnstitute of Plateau Atmospheric Physics,
来源
SCIENCE IN CHINA SERIES D-EARTH SCIENCES | 1997年 / 40卷 / 06期
关键词
Underground Hot Vortex; spatial-temporal distribution; crustal deformation; China;
D O I
10.1007/BF02877683
中图分类号
P [天文学、地球科学];
学科分类号
07 ;
摘要
Using ground temperature data from meteorological stations as well as earthquake, ground tilt and precipitation data, the spatial-temporal distribution of ''Underground Hot Vortex'' (UHV) in China was analyzed in derail. The results show that concerning an ''Underground Hot Vortex'' cell, its life-span is 3-8 seasons, 1.5 years on average; the mean horizontal scale is 600 km and its characteristic velocity is about 400 km/a; UHV is likely to appear in some areas where the crustal movement is intense and the absolute value of vertical deformation rate is relatively high; its activity could hardly be detected in the area where the crust is stable and the vertical deformation is weak; most of ''Underground Hot Vortex Groups'' originate; from the edge of Indian Plate, then migrate eastwards with a leaping-frog style. 5-10 years are needed for their arrival in the eastern border of China. Their horizontal migrating velocity is 200-500 km/a which is nearly equal to the characteristic velocity of a single UHV.
引用
收藏
页码:561 / 568
页数:8
相关论文
共 12 条
  • [1] LI YT, 1989, ADV GEOPHYSICS CHINA, P336
  • [2] Ma X., 1989, LITHOSPHERIC DYNAMIC
  • [3] MA ZL, 1993, GEOL EARTHQUAKE, V15, P127
  • [4] Tang M. C., 1991, ADV EARTH SCI, V6, p10
  • [5] Tang Maocang, 1994, PLATEAU METEOROLOGY, V13, P178
  • [6] TANG MC, 1994, PLATAU METEOROLOGY, V13, P35
  • [7] TANG MC, 1995, ADV EARTH SCI, V10, P47
  • [8] TANG MC, 1993, ADV GEOPHYS, V8, P60
  • [9] Tang MC., 1992, PAPERS 1 S CHINA QIN, P42
  • [10] WANG BL, 1993, CHINESE SCI BULL, V38, P1013