The subsurface-land surface-atmosphere connection under convective conditions

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Title:Main Title: The subsurface-land surface-atmosphere connection under convective conditions
Description:Abstract: The dynamics of the free groundwater table influence land surface soil moisture and energy balance components, and is therefore also linked to atmospheric processes. In this study, the sensitivity of the atmosphere to groundwater table dynamics induced heterogeneity in land surface processes is examined under convective conditions. A fully coupled subsurface-land surface-atmosphere model is applied over a 150x150 km study area located in Western Germany and ensemble simulations are performed over two convective precipitation events considering two separate model configurations based on groundwater table dynamics. Ensembles are generated by varying the model atmospheric initial conditions following the prescribed ensemble generation method by the German Weather Service in order to account for the intrinsic, internal atmospheric variability. The results demonstrate that especially under strong convective conditions, groundwater table dynamics affect atmospheric boundary layer height, convective available potential energy, and precipitation via the coupling with land surface soil moisture and energy fluxes. Thus, this study suggests that systematic uncertainties may be introduced to atmospheric simulations if groundwater table dynamics are neglected in the model.
Identifier:10.1016/j.advwatres.2015.06.003 (DOI)
Citation Advice:M. Rahman , M. Sulis , S.J. Kollet , The subsurface-land surface- atmosphere connection under convective conditions, Advances in Water Resources (2015), doi: 10.1016/j.advwatres.2015.06.003
Responsible Party
Creators:A.S.M. Mostaquimura Rahman (Author), Mauro Sulis (Author), Stefan Kollet (Author)
Publisher:Elsevier
Publication Year:2015
Topic
TR32 Topic:Atmosphere
Related Subproject:D7
Subjects:Keywords: Land-Atmosphere Interaction, Atmospheric Modelling
File Details
Filename:manuscript_paper2.pdf
Data Type:Text - Article
File Size:913 KB
Date:Available: 07.11.2014
Mime Type:application/pdf
Data Format:PDF
Language:English
Status:Completed
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General Access and Use Conditions:According to the TR32DB data policy agreement.
Access Limitations:According to the TR32DB data policy agreement.
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Publication Status:Accepted
Review Status:Peer reviewed
Publication Type:Article
Article Type:Journal
Source:Advances in Water Resources
Number of Pages:42 (1 - 42)
Metadata Details
Metadata Creator:A.S.M.Mostaquimur Rahman
Metadata Created:24.06.2015
Metadata Last Updated:24.06.2015
Subproject:D7
Funding Phase:2
Metadata Language:English
Metadata Version:V50
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