I want to extract meteorological data of a point which are 3 meteorological stations around it. I found that ArcGis has the capability to do it by interpolation. My essential data is wind speed , wind direction and cloud cover which interpolation method or any other method is useful for my case?

  • 2
    How far apart are the stations? Wind data don't interpolate usefully for distances greater than a few kilometres due to terrain and roughness effects.
    – scruss
    Dec 9 '13 at 13:35
  • There is a free/open source wind model that can model the effect of terrain on wind fields. You can use a csv file to input weather station data. You need a digitial elevation model of the area of interest, and you can download that using the program. See: windninja.firemodels.org
    – user10353
    Dec 9 '13 at 19:51
  • the stations distances are about 40 kilometers and the interpolating methods that I've done by ArcGis was not logic. and the other problem is that my data is hourly and I couldn't extract sufficient information from its output. I'll try the model you suggested. thank you
    – user24735
    Dec 21 '13 at 12:45

This document could help you choose the interpolation method, but i would suggest SAGA GIS as alternative for ArcGIS for its strong support for interpolations.

  • thank you so much. I'll read the document and try SAGA GIS too.
    – user24735
    Dec 21 '13 at 12:46

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