夏季6-8月（22.5-32.5°N，85-105°E）区域和（22.5-32.5°N，55-75°E）区域200 hPa位势高度之差，定义为南亚高压东西移动指数（Wei et al，2014）；（27.5-32.5°N，50-100°E）区域和（22.5-27.5°N，50-100°E）区域200hPa位势高度之差，定义为南亚高压南北偏移指数（魏维等，2012）；（20-27.5°N，85-115°E）区域和（27.5-35°N，50-80°E）区域200hPa位势高度之差，定义为南亚高压西北-东南指数（Wei et al，2015）。
指数文件下载：sahShiftIndexJJA.txt
参考文献：
Wei W, Zhang R, Wen M, et al., 2014: Impact of Indian summer monsoon on the South Asian High and its influence on summer rainfall over China. Climate Dynamics, 43: 1257-1269.
Wei W, Zhang R, Wen M, et al., 2015: Interannual variation of the South Asian high and its relation with Indian and East Asian summer monsoon rainfall. Journal of Climate, 28: 2623-2634.
魏维, 张人禾, 温敏, 2012: 南亚高压的南北偏移与我国夏季降水的关系. 应用气象学报, 23(6): 650-659.
Wei W, Zhang R, Wen M, et al., 2014: Impact of Indian summer monsoon on the South Asian High and its influence on summer rainfall over China. Climate Dynamics, 43: 1257-1269.
Wei W, Zhang R, Wen M, et al., 2015: Interannual variation of the South Asian high and its relation with Indian and East Asian summer monsoon rainfall. Journal of Climate, 28: 2623-2634.
魏维, 张人禾, 温敏, 2012: 南亚高压的南北偏移与我国夏季降水的关系. 应用气象学报, 23(6): 650-659.