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Overview     
MetCor (Meteorological Correlation) is a free program used mainly for the computation of Potential Source Contribution Function (PSCF)[1] matrices which can be visualized by geographical informations system (GIS) software. Calculation of PSCF matrices is accomplished by analysis of data contained in geospatial coordinates. Geospatial coordinates can exist as endpoints in meteorological backward or forward trajectories. Data is added to these endpoints on the basis of a unique identifier given to points belonging to the same trajectory, which is the starting date and starting elevation.

Features:
-     support for NOAA HYSPLIT and CMC three-dimensional    
      trajectories
-     statistical tools for endpoint analysis
-     variable grid resolutions for PSCF matrices
-     highly flexible text-based method for adding data to    
      endpoints
-     can be used to plot multiple back trajectories as a matrix

1. Ashbaugh, L.L., Malm, W.C., Sadeh, W.,Z. (1985). A residence time probability analysis of sulfur concentrations at Grand Canyon National Park. Atmospheric Environment, 1967(19), 1263 - 1270.

Example and Screenshots
A PSCF matrix generated by MetCor and overlayed on the map of the world. With GIS software such as ArcView, the PSCF matrix can be rectified and transformed to conform to the shape of any desired map.                                  




A screenshot of MetCor's graphical user interface.