# Coupling of the unsaturated zone to the saturated zone

**URL:** <https://discourse.opengeosys.org/t/coupling-of-the-unsaturated-zone-to-the-saturated-zone/539>\
**Category:** ogs-users\
**Tags:** ogs6\
**Created:** [June 16, 2020, 2:24am UTC](https://discourse.opengeosys.org/t/coupling-of-the-unsaturated-zone-to-the-saturated-zone/539 "2020-06-16T02:24:46Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![XiaowenSun](https://discourse.opengeosys.org/letter_avatar_proxy/v4/letter/x/71e660/32.png) [@XiaowenSun](https://discourse.opengeosys.org/u/XiaowenSun)\
**Post date:** [June 16, 2020, 2:24am UTC](https://discourse.opengeosys.org/t/coupling-of-the-unsaturated-zone-to-the-saturated-zone/539/1 "2020-06-16T02:24:46Z")

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Hi,all

I want to build a coupling of the unsaturated zone to the saturated zone model and explore the effects of the mineralization and denitrification reactions involved on groundwater(from the surface to subsurface), but I haven’t found the benchmarks for the similar model. Is there some examples I can follow?

Best Regards  
Xiaowen

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**Author:** ![johannes.boog](https://discourse.opengeosys.org/letter_avatar_proxy/v4/letter/j/7ea924/32.png) [@johannes.boog](https://discourse.opengeosys.org/u/johannes.boog)\
**Post date:** [June 16, 2020, 11:32am UTC](https://discourse.opengeosys.org/t/coupling-of-the-unsaturated-zone-to-the-saturated-zone/539/2 "2020-06-16T11:32:07Z")

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Hi @XiaowenSun,

I am not aware of such an example but that doesn’t mean there is none. You may want to have a look to the OGS Benchmark [books](https://www.opengeosys.org/categories/books/).

Good luck!

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**Author:** ![XiaowenSun](https://discourse.opengeosys.org/letter_avatar_proxy/v4/letter/x/71e660/32.png) [@XiaowenSun](https://discourse.opengeosys.org/u/XiaowenSun)\
**Post date:** [June 17, 2020, 1:04am UTC](https://discourse.opengeosys.org/t/coupling-of-the-unsaturated-zone-to-the-saturated-zone/539/3 "2020-06-17T01:04:22Z")

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Dear johannes

Thank you for your hint!

Regards  
Xiaowen