A STUDY ON THE ENERGY AND WATER CYCLES OVER CHANGJIANG-HUAIHE RIVER BASINS DURING THE 1991 HEAVY RAIN PERIODS
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Abstract
After analysis of the global water vapor background during the 1991 heavy rain over Changjiang-Huaihe(Jianghuai) River Basins(simply called JRB), the energy and water budgets over the JRB heavy rain region are given at tention, and main conclusions are gotten as follows:(1) The mechanism of water vapor transport is that, on one side, plentiful water vapor in stationary eddy mode transports to JRB from Bengal Bay and South China Sea, on the other side, the JRB moisture transports to north in transienteddy mode which may be related to meso-scale and meso-scale systems occurring frequently in JRB, and they make part of the JRB plentiful moisture influx drop in precipitation and the others transport to high latitude region(lesser moisture region) in order to maintain the global water vapor balance.
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