Representing lateral groundwater flow from  land to river in Earth system models

Liao, Chang; Leung, L. Ruby; Fang, Yilin; Tesfa, Teklu; Negron-Juarez, Robinson

doi:https://doi.org/10.5194/gmd-18-4601-2025

Articles | Volume 18, issue 14

https://doi.org/10.5194/gmd-18-4601-2025

© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/gmd-18-4601-2025

© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 18, issue 14

Model description paper

|

29 Jul 2025

Model description paper |

| 29 Jul 2025

Representing lateral groundwater flow from land to river in Earth system models

Chang Liao, L. Ruby Leung, Yilin Fang, Teklu Tesfa, and Robinson Negron-Juarez

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Feb 2025	27	11	41	79
Mar 2025	18	18	60	96
Apr 2025	40	25	46	111
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Cumulative views and downloads (calculated since 30 Oct 2024)

Month	HTML	PDF	XML	Total
Oct 2024	40	4	1	45
Nov 2024	62	17	6	85
Dec 2024	84	33	3	120
Jan 2025	28	11	1	40
Feb 2025	27	11	41	79
Mar 2025	18	18	60	96
Apr 2025	40	25	46	111
May 2025	22	10	2	34
Jun 2025	25	15	5	45
Jul 2025	113	30	4	147
Aug 2025	124	30	10	164

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Short summary

Understanding horizontal groundwater flow is important for understanding how water moves through the ground. Current climate models often simplify this process because they do not have information about the land surface that is detailed enough. Our study developed a new model that divides the land surface into hillslopes to better represent how groundwater flows. This model can help improve predictions of water availability and how it affects ecosystems.