# Regarding validation of model

**URL:** <https://community.naturalcapitalalliance.org/t/regarding-validation-of-model/6414>\
**Category:** Science, Research & Data\
**Tags:** sdr\
**Created:** [May 18, 2026, 1:59pm UTC](https://community.naturalcapitalalliance.org/t/regarding-validation-of-model/6414 "2026-05-18T13:59:35Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![Rajesh](https://avatars.discourse-cdn.com/v4/letter/r/8e7dd6/32.png) [@Rajesh](https://community.naturalcapitalalliance.org/u/Rajesh)\
**Post date:** [May 18, 2026, 1:59pm UTC](https://community.naturalcapitalalliance.org/t/regarding-validation-of-model/6414/1 "2026-05-18T13:59:35Z")

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I have run InVEST SDR model and i get output like total sediment export. Now i have problem with validation from where i validate model output values is there any specific field experiment we have to set or any other way to validate model in easy way. please rectify my query with immediate effect.  
Thank you

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**Author:** ![csimpson](https://avatars.discourse-cdn.com/v4/letter/c/76d3ee/32.png) [@csimpson](https://community.naturalcapitalalliance.org/u/csimpson)\
**Post date:** [May 18, 2026, 4:08pm UTC](https://community.naturalcapitalalliance.org/t/regarding-validation-of-model/6414/2 "2026-05-18T16:08:52Z")

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Hi @Rajesh and welcome to the forum!

If you have not already done so, I would recommend taking a look at the InVEST User’s Guide for SDR, and specifically the [Calibration/Comparison with Observed Data](https://storage.googleapis.com/releases.naturalcapitalproject.org/invest-userguide/latest/en/sdr.html#calibration-comparison-with-observed-data) section. This section references a [paper](https://www.sciencedirect.com/science/article/abs/pii/S0048969715004635?via%3Dihub) that gives more information.

In addition, if you search “validation” in this forum you’ll find posts that may be helpful.

Thanks!

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**Author:** ![Rajesh](https://avatars.discourse-cdn.com/v4/letter/r/8e7dd6/32.png) [@Rajesh](https://community.naturalcapitalalliance.org/u/Rajesh)\
**Post date:** [May 18, 2026, 4:54pm UTC](https://community.naturalcapitalalliance.org/t/regarding-validation-of-model/6414/3 "2026-05-18T16:54:32Z")

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i am forgot to tell you that which region i have apply this model there is no observed sedementation data and there is no or any other types of water gauge which record sediment export so for this region without any authentic source how i can validate model results ?

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**Author:** ![jesseG](https://yyz1.discourse-cdn.com/flex031/user_avatar/community.naturalcapitalalliance.org/jesseg/32/1068_2.png) [@jesseG](https://community.naturalcapitalalliance.org/u/jesseG)\
**Post date:** [May 18, 2026, 5:24pm UTC](https://community.naturalcapitalalliance.org/t/regarding-validation-of-model/6414/4 "2026-05-18T17:24:05Z")

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One possible approach for validating freshwater quality ecosystem service models in data-scarce regions is described in the study found at this URL:

`https://doi.org/10.1016/j.scitotenv.2025.180388` .

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**Author:** ![Rajesh](https://avatars.discourse-cdn.com/v4/letter/r/8e7dd6/32.png) [@Rajesh](https://community.naturalcapitalalliance.org/u/Rajesh)\
**Post date:** [May 19, 2026, 11:23am UTC](https://community.naturalcapitalalliance.org/t/regarding-validation-of-model/6414/5 "2026-05-19T11:23:49Z")

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This paper giving validation idea for NDR not for SDR ?