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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?

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    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
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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.

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  • 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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