The subsurface-land surface-Atmospheric feedback under a range of land cover conditions
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| Title: | Main Title: The subsurface-land surface-Atmospheric feedback under a range of land cover conditions |
| Description: | Abstract: The aim of this project is to understand the effects of vegetation on the coupling between groundwater, energy fluxes, and the atmospheric boundary layer. The study will focus on the sensitivity of these feedbacks to a range of land cover conditions. The model used for the study will be the coupled subsurface-surfaceatmospheric modeling platform developed in TR32 (Parflow-CLM-COSMO), and real catchment data (for the Rur catchment) will be used for this purpose. The aspects for the research will be: 1) what is the role of vegetation on transition zones of strongest coupling between water table and energy fluxes at the land surface? 2) What is the role of vegetation on the connection between water table dynamics and the atmospheric boundary layer? 3) How does this role change over diurnal and seasonal timescales? The methodology for this study is divided into two phases. The first phase will focus on vegetation effects on subsurface – surface coupling using the model (Parflow-CLM). Results from Phase I will be used to initialize the subsurface-land surface components of the fully coupled simulations of Phase II. In Phase II, the task will focus on the vegetation effects on subsurface – surface-atmospheric coupling using the model (Parflow-CLM-COSMO). During both phases a sensitivity analysis on vegetation parameters in CLM will be performed. Results will be compared to observations and previous studies, and will help draw conclusions on which regions within a watershed exhibit stronger vegetation effects on the coupling, and also during which times. This will enable us to determine vegetation parameters which have a large effect on these coupled processes and thus will need to be taken into account in future developments of vegetation parameterizations in CLM. |
Responsible Party
| Creator: | Yen-Sen Lu (Author) |
| Publisher: | CRC/TR32 Database (TR32DB) |
| Publication Year: | 2013 |
Topic
| TR32 Topic: | Atmosphere |
| Related Subproject: | C4 |
| Subject: | Keyword: PhD Report |
File Details
| Filename: | Report1_Lu_2012.pdf |
| Data Type: | Text - Text |
| File Size: | 1.9 MB |
| Date: | Available: 20.04.2012 |
| Mime Type: | application/pdf |
| Data Format: | |
| Language: | English |
| Status: | Completed |
Constraints
| Download Permission: | Only Project Members |
| General Access and Use Conditions: | For internal use only. |
| Access Limitations: | For internal use only. |
| Licence: | [TR32DB] Data policy agreement |
Geographic
Specific Information - Report
| Report Date: | 20th of April, 2012 |
| Report Type: | PhD Report |
| Report City: | Bonn, Germany |
| Report Institution: | Meteorological Institute, University Bonn |
| Number of Pages: | 7 (1 - 7) |
| Further Information: | TR32 Student Report Phase II |
Metadata Details
| Metadata Creator: | Yen-Sen Lu |
| Metadata Created: | 04.12.2013 |
| Metadata Last Updated: | 04.12.2013 |
| Subproject: | C4 |
| Funding Phase: | 2 |
| Metadata Language: | English |
| Metadata Version: | V50 |
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| Page Visits: | 656 |
| Metadata Downloads: | 0 |
| Dataset Downloads: | 0 |
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