How can I calculate average precipitation of a city when I have 7 different observation stations' datasets?

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Nanco Dolman

Dear Zülküf İbrahim Erkol , I can share you some things I learned from practice.

Compatible time series - Are the times series of precipitation data of the 7 observation stations comparable? Both in same dates (e.g. years), as well in same interval (e.g. 1 hour)?

Spatial distribution - The 7 observation stations are spatially distributed around the city like the precipitation. Perhaps you know or need to determine the respresentatiev areas per station. I assumed the observation stations are not in the city, although some cities have an urban rain gauge. The urban climate and precipitation chracteristic is different.

Average percipitation - What average percipitatoin are you looking for or is required? Annual, season, monthly or more like peak intensity, e.g. mm/hour. For this an extreme value analysis is needed, based on a statitic-distribution like Gumbel.

These mentioned aspects can help you in making your research question more specific and prepare you for an approach.

Inder Jeet

Average precipitation based on observation stations can be calculated with the help of:

Theissen Polygon method

Average mathematical method

Isohyetal method

Zülküf İbrahim Erkol

Sefa Nur Yesilyurt, it'd be better if you just could check out the answers and let me know whether or not you make any sense out of them.

Nanco Dolman Firstly, I'd like really to thank your for your comprehensive answer.

As of my precipitation datasets, mine are observed monthly precipitation rates.

Plus, all of them corresponds to the same dates and has the same interval. What path do you think I'm supposed to follow in my case.

Thanks in advance

Best

İbrahim ERKOL