| Page Properties |
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| 1.Poster Title | Including variable soil thickness in ALMv2 |
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| 2.Authors | |
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| 3.Group | Land |
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| 4.Experiment | Watercycle |
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| 5.Poster Category | Future Direction |
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| 6.Submission Type | poster |
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| 7.Poster Link | |
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| 8.Lightning Talk Slide | Brunke_One-Slide_Poster_VARSOIL_XZ |
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| View file |
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| name | ACME_Future_VarSoil_UA_Poster-June2016-2.pdf |
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| page | 2016-06-07 ACME Project All-Hands Meeting Posters |
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| height | 400 |
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Abstract
Currently, the ACME Land Model (ALM), like the Community Land Model, has a constant depth (~3.8 m) that is hydrologically active with a poorly-defined unconfined aquifer somewhere below this. Recently, we developed a global estimate of bedrock depth at a horizontal resolution of ~30 arcsec (or about 1 km) (Pelletier et al. 2016) that allowed us to implement variable soil thickness into the Community Land Model version 4.5 (CLM4.5) (Brunke et al. 2016). Such an implementation allowed the unconfined aquifer to be removed, as the aquifer would be physically represented within the soil column. In CLM4.5, baseflow was the most impacted, while other fluxes such as surface runoff and latent heat flux were minimally impacted. Soil temperature was also substantially impacted due to changes in the thermal properties assumed and to the presence of water.
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