<p>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?</p>

<p>Methods I have thought of were to take the average of S1 &amp; 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.</p>

<p><img src="https://i.sstatic.net/VPKlv.jpg" alt="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."></p>

CC BY-SA 4.0
2020-03-01T18:14:53.780Z
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
hindreen mohammed
CC BY-SA 4.0
2020-03-02T08:14:30.473Z
Your map needs a scale. I don't know how you will make polygons with only 2 stations.
haresfur
CC BY-SA 4.0
2020-03-02T12:42:04.473Z
I meant if there is a way for this situation ? Regardless the scale and calculations procedure
hindreen mohammed
<hydrology><rainfall><storms><watershed><runoff>
Rainfall guage stations outside the watershed
hindreen mohammed
# Rainfall guage stations outside the watershed

(Asked by: username_0 on 2020-03-01)

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.](https://i.sstatic.net/VPKlv.jpg)

**Tags:** hydrology, rainfall, storms, watershed, runoff

> **Comments:**
> **username_0**: 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  
> **username_1**: Your map needs a scale. I don't know how you will make polygons with only 2 stations.  
> **username_0**: I meant if there is a way for this situation ? Regardless the scale and calculations procedure  

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## 0 answers

