I have three location points with weather data. It's a 10-year composite of temperature values which means I only have three values for three locations for ten years. The distance between points is approximately 100 kilometers.
I want to interpolate these points to create a temperature map for the area. So, which method should I use and how?
Best Answer
Would your map be better than using the average temperature for the whole area? Unless you know that there is a physical reason why temperature differences occur I would use the average value everywhere, and not make an interpolation. It may well be that the prediction is more accurate if you do that than if you use an interpolated map. Local differences may be causing the temperature changes rather than a large scale spatial trend.
What do you need the map for?
Where is your study area located? Are you sure you cannot get other data for the area?