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How can I determine the rainfall depth for an event over the watershed, if I just have two stations, S1 and S2, that are outside the catchment?

Methods I have thought of were to take the average of S1 & S2 or just to use the Theissen polygon method. If anyone has another idea or previous experience with this situation your help would be appreciated.

How i can determine the rainfall depth for an event over the watershed ? If just i have S1 and S2 stations (two stations) outside the catchment.

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  • $\begingroup$ I thought to take average of S1 & S2 or just to use Theissen polygon method ? Please if you have another idea or previous experience with this situation help us with your answer. Regards $\endgroup$
    – hindreen mohammed
    Mar 1, 2020 at 18:14
  • $\begingroup$ earthscience.stackexchange.com/questions/17020/… $\endgroup$
    – user1066
    Mar 2, 2020 at 7:36
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    $\begingroup$ Your map needs a scale. I don't know how you will make polygons with only 2 stations. $\endgroup$
    – haresfur
    Mar 2, 2020 at 8:14
  • $\begingroup$ I meant if there is a way for this situation ? Regardless the scale and calculations procedure $\endgroup$
    – hindreen mohammed
    Mar 2, 2020 at 12:42

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