Numerical study on the effects of underlying surface forcing on torrential rain process over beijing-tianjin-hebei region. J Appl Meteor Sci, 1999, 10(4): 436-444.
Citation:
Numerical study on the effects of underlying surface forcing on torrential rain process over beijing-tianjin-hebei region. J Appl Meteor Sci, 1999, 10(4): 436-444.
Numerical study on the effects of underlying surface forcing on torrential rain process over beijing-tianjin-hebei region. J Appl Meteor Sci, 1999, 10(4): 436-444.
Citation:
Numerical study on the effects of underlying surface forcing on torrential rain process over beijing-tianjin-hebei region. J Appl Meteor Sci, 1999, 10(4): 436-444.
Numerical Study on the Effects of Underlying Surface Forcing on Torrential Rain Process over Beijing-Tianjin-Hebei Region
1.
1) (Air Force Research Institute of Meteorology, Beijing 10085); 2) (Air Force Institute of Meteorology, Nanjing 211101); 3) (Nanjing Institute of Meteorology, Nanjing 210044)
The torrential rain process on July 23, 1992 over Beijing-Tianjin-Hebei region is simulated by using the model MM4. With the model products of high temporal and spatial resolution, some kinds of numerical experiments employing numerical models Mass & MM4 are designed here to demonstrate the effects of underlying surface mechanical and thermal forcing on the torrential rain process. It is pointed out that the strong upward motion associated with surface convergence forced by underlying surface is the trigger mechanism of the torrential rain process.
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