An Analytical Framework to Investigate Groundwater-Atmosphere Interactions Influenced by Soil Properties

Vogelbacher, Anastasia, Aminzadeh, Milad, Madani, Kaveh and Shokri, Nima, (2024). An Analytical Framework to Investigate Groundwater-Atmosphere Interactions Influenced by Soil Properties. Water Resources Research, 60(4), 1-14

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  • Sub-type Journal article
    Author Vogelbacher, Anastasia
    Aminzadeh, Milad
    Madani, Kaveh
    Shokri, Nima
    Title An Analytical Framework to Investigate Groundwater-Atmosphere Interactions Influenced by Soil Properties
    Appearing in Water Resources Research
    Volume 60
    Issue No. 4
    Publication Date 2024-04-01
    Place of Publication Florida
    Publisher AGU
    Start page 1
    End page 14
    Language eng
    Abstract The interaction between climate and groundwater forms a complex, coupled system that affects land-atmosphere feedback processes and thus local climatic parameters. We propose an analytical framework that integrates local groundwater information and soil hydrophysical characteristics to identify regions with bidirectional (two-way) coupling where groundwater is influenced by climatic factors (e.g., precipitation) and may affect local climate (e.g., through surface fluxes). The framework capitalizes on the concept of the evaporation characteristic length to quantify the hydraulic connection of groundwater to the soil surface. To evaluate the framework, we calculate the maximum depth of hydraulic connection (D max) between groundwater and the soil surface in Hamburg, Germany. For regions with D max exceeding the groundwater depth (d), a bidirectional mode of coupling is defined, while D max < d implies a unidirectional coupling mode. Our results indicate that climate driven evaporation changes potentially alter the coupling between groundwater and climate depending on soil texture. Moreover, soil hydraulic properties and shallow groundwater tables could play a crucial role in shifting land-atmosphere feedback processes by influencing the coupling mode. This research provides insights into the groundwater-climate interactions under various climatic conditions and soil textures which could contribute to sustainable land-use management practices, particularly in regions characterized by bidirectional coupling.
    Keyword Interactive Climate and ground water
    local groundwater
    Soil hydraulic
    Saturated hydraulic conductivity
    land-atmosphere feedback
    Climatic factors
    sustainable land-use
    Copyright Holder The Author(s)
    Copyright Year 2024
    Copyright type Creative commons
    DOI 10.1029/2023WR036643
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    Created: Fri, 13 Sep 2024, 04:00:45 JST by Haideh Beigi on behalf of UNU INWEH