[GRASS-web] Suggestions for improving the Green-Ampt infiltration model

[Veronica Andreo]

Dear Dawey,

Thanks for your email

Perhaps you can write to the author of itzi or create an issue in the
repository as well: https://bitbucket.org/itzi-model/itzi/src/master/.
AFAICT from the documentation, itzi is built upon GRASS GIS functionality
but the drainage modeling/simulation is not GRASS.

Have a nice day!
Veronica

El sáb, 7 ene 2023 a las 13:46, 程大伟 (<cheng198493 at chd.edu.cn>) escribió:

> Dear Sir or Madam
>
>
>
> According to the information retrieval, Green-Ampt infiltration model
> (1911) is used by the Itzï. However, our recent research found that the
> inverted saturation zone front surface depth calculated by Green-Ampt
> infiltration model (1911) does not have reasonable physical significance,
> that is, the inverted saturation zone front surface depth calculated by the
> mathematical model being negative value is contrary to the inverted
> saturation zone front surface depth specified by the physical model being
> positive value, as shown in Figure 1 (in the attachment). Cheng et
> al.(2021) discusses this problem in detail in Section 6.2 and suggests
> using Eq.(9) in section 3.2.1 as a revised model. The solution of Eq.(9) is
> Eq.(11) for a constant recharge rate W in Section 3.2.2 or Eq.(15) for a
> time-dependent recharge rate W in Section 3.2.3, respectively.
>
>
>
> We hope that the software will be more widely used by scholars and
> engineers.
>
> To honor the software developers.
>
>
>
> *Reference：*
>
> Cheng, D., H. Zhan, j. LI, and D. Cheng (2021), Characteristics of
> Inverted Saturated Zone under Unclogged Streams, Journal of Hydrology, 597,
> 126288.
>
>
>
>
>
>
> *Dawei Cheng*
>
> *School of water and environment，Chang’an University,*
>
> * Xi'an, Shaanxi, China*
>
> *Tel:+86 13324510358*
>
>
>
>
> _______________________________________________
> grass-web mailing list
> grass-web at lists.osgeo.org
> https://lists.osgeo.org/mailman/listinfo/grass-web
>
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