Diagnostic analysis of observed and numerically simulated cloud and precipitation structures during pre-ERICAA preliminary 140-km simulation of a rapid cyclogenesis, using the Limited Area Mesoscale Prediction System (LAMPS) is discussed. A three-dimensional version of LAMPS used in the simulation is described, along with a trajectory model utilizing the three-hourly output history files from the LAMPS model. Preliminary integrations of the LAMPS code as well as passive microwave digital data from SSM/I aboard the DMSP satellite are used for exploring the evolving baroclinic structure and moisture field of the cyclone event. A trajectory analysis of the model histories reveals a significant role for preconditioning of the low-level upstream air, which is then drawn into the ascending warm conveyor belt ahead of the storm.
Document ID
19910037957
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Perkey, Donald J. (Drexel Univ. Philadelphia, PA, United States)
Doty, Kevin G. (Drexel University Philadelphia, PA, United States)
Robertson, Franklin R. (NASA Marshall Space Flight Center Huntsville, AL, United States)
Date Acquired
August 15, 2013
Publication Date
January 1, 1989
Subject Category
Meteorology And Climatology
Meeting Information
Meeting: Conference on Weather Analysis and Forecasting