# Water yield verification

**URL:** <https://community.naturalcapitalalliance.org/t/water-yield-verification/1847>\
**Category:** Software Support\
**Tags:** annual-water-yield\
**Created:** [April 18, 2021, 2:31pm UTC](https://community.naturalcapitalalliance.org/t/water-yield-verification/1847 "2021-04-18T14:31:00Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![sunsiqi](https://avatars.discourse-cdn.com/v4/letter/s/ecc23a/32.png) [@sunsiqi](https://community.naturalcapitalalliance.org/u/sunsiqi)\
**Post date:** [April 18, 2021, 2:31pm UTC](https://community.naturalcapitalalliance.org/t/water-yield-verification/1847/1 "2021-04-18T14:31:00Z")

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Hello, Community! Hope everyone is well!  
I have a question regarding the vertification of the result output by water yield model. What are the specific methods to verify this result? At present, I have the runoff data of hydrological stations, I wonder if I can use this data to verify it?Or is the annual runoff data of the hydrological station equivalent to the grid data of annual water output?  
Thanks a lot.

Sunsiqi

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**Author:** ![swolny](https://yyz1.discourse-cdn.com/flex031/user_avatar/community.naturalcapitalalliance.org/swolny/32/181_2.png) [@swolny](https://community.naturalcapitalalliance.org/u/swolny)\
**Post date:** [April 19, 2021, 2:12pm UTC](https://community.naturalcapitalalliance.org/t/water-yield-verification/1847/2 "2021-04-19T14:12:54Z")

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Hi @sunsiqi -

Yes, if you have long-term hydrological station data, you can use that to compare with the _wyield_ model results. Have you checked out the [Calibration of Water Yield Model](https://storage.googleapis.com/releases.naturalcapitalproject.org/invest-userguide/latest/reservoirhydropowerproduction.html#appendix-2-calibration-of-water-yield-model) section of the User Guide? It talks about this, and points to a couple of papers that provide detail about doing a sensitivity analysis first, so you know which model parameters to adjust during calibration. If you have specific questions about the process after reading these, let us know.

~ Stacie

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**Author:** ![sunsiqi](https://avatars.discourse-cdn.com/v4/letter/s/ecc23a/32.png) [@sunsiqi](https://community.naturalcapitalalliance.org/u/sunsiqi)\
**Post date:** [April 19, 2021, 2:47pm UTC](https://community.naturalcapitalalliance.org/t/water-yield-verification/1847/3 "2021-04-19T14:47:38Z")

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Thank you very much! I will look up the user Guide carefully.