Reference airflow field data creation device, method, program, and substance diffusion state prediction system

摘要

PPROBLEM TO BE SOLVED: To facilitate processing for determining air current factors and reduce the time for creating an air current database. PSOLUTION: The standard air current field data creation apparatus 10 creates standard air current field data for use in a mass diffusion forecasting apparatus 20 for forecasting the diffusion of a mass in an area of interest including a point of interest. The standard air current field data creation apparatus 10 includes: a topographic data extraction section 11 for extracting topographic data in the area of interest when the area of interest is input; a building rectangular approximation extraction section 12 for extracting information on buildings in the area of interest, approximating building outline data on the outline of the buildings to a rectangle, and outputting the approximation result as building data; and an air current calculation section 13 for calculating an air current field in the wind direction of a predetermined direction on the basis of the topographic data extracted by the topographic data extraction section 11 and the building data output from the building rectangular approximation extraction section 12. PCOPYRIGHT: (C)2010,JPO&INPIT