METREX 확산실험 자료를 이용한 INPUFF모델의 평가

초록

The Metropolitan Tracer Experiment(METREX) was performed over the Washington, D.C. area using two inert,non- ~ December 1984). Two perfluoro-carbon gas tracers(PDCH, PMCH) were released simultaneously at intervals of every 36 hours for 6 hours, regard-less of the meteorological conditions in metropolitan area. Samples were collected continuously for 8 hours at acentral downtown and two adjacent suburban locations. Monthly air samples were collected at 93 sites across theThe purpose of this study is to simulate INPUFF and ISCST model using METREX data, and to compare calcu-lated and observed concentrations. In the case of INPUFF simulation, two meteorological input data were used.One is result data from wind eld model which was calculated by diagnostic wind model (DWM), the other isand July, 1984; they include (1) INPUFF model using DWM data (2) INPUFF model using single meteorologicaldata (3) ISCST model.The monthly average concentration data were used for statistic analysis and to draw their horizontal distributionpatterns. Eight-hour-averaged concentration was used to describe movement of puff during the episode period.The results showed that the concentrations calculated by puff model (INPUFF) were better than plume model(ISCST). In the case of puff model(INPUFF), a model run using wind field data produced better results than thatderived by single meteorological data.

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