Inclusion of CO2 fluxes in a coupled mesoscale land surface and atmospheric model
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| Titles: | Main Title: Inclusion of CO2 fluxes in a coupled mesoscale land surface and atmospheric model Alternative Title: 5th report |
| Description: | Abstract: An essential part of a successful weather prediction with numerical models is an accurate simulation of the interaction of the land surface with the lower atmosphere. We use the model system TerrSysMP that couples the atmospheric model COSMO with the Community Land Model (CLM). TerrSysMP comprehensively simulates the exchange processes between the soil, the vegetation and the atmosphere in terms of water, carbon dioxide (CO2), heat and momentum fluxes. Field measurements on the regional scale indicate distinct spatio-temporal heterogeneities in the atmospheric CO2 concentration. This variability is caused by different plant types (e.g. agriculture, forest, grassland) that produce different net CO2 fluxes and by atmospheric transport. The net CO2 flux consists of the photosynthesis rate as an atmospheric sink as well as plant and soil respiration as sources for the atmospheric CO2 concentration. Additional to these natural fluxes, anthropogenic emissions influence the atmospheric CO2 concentration. The focus of this semi-annual report is on soil respiration. After some including words on soil respiration in Section 2, the parameterization of heterotrophic soil respiration with the Rothamsted Carbon Model (RothC) will be explained in Section 3. Section 4 shows results of sensitivity tests with the RothC model included in TerrSysMP and in the outlook (Section 5) the treatment of autotrophic respiration in CLM and a possible extention of the soil respiration parameterization with the carbon transport model SOILCO2 will be described. |
Responsible Party
| Creator: | Markus Übel (Author) |
| Publisher: | CRC/TR32 Database (TR32DB) |
| Publication Year: | 2014 |
Topic
| TR32 Topic: | Atmosphere |
| Related Subproject: | C4 |
| Subject: | Keyword: PhD Report |
File Details
| Filename: | Report4_Uebel_2013.pdf |
| Data Type: | Text - Text |
| File Size: | 3.5 MB |
| Date: | Created: 06.12.2013 |
| Mime Type: | application/pdf |
| Data Format: | |
| Language: | English |
| Status: | Completed |
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| Download Permission: | Only Project Members |
| General Access and Use Conditions: | According to the TR32DB data policy agreement. |
| Access Limitations: | According to the TR32DB data policy agreement. |
| Licence: | [TR32DB] Data policy agreement |
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Specific Information - Report
| Report Date: | 6th of December, 2013 |
| Report Type: | PhD Report |
| Report City: | Bonn, Germany |
| Report Institution: | Meteorological Institute, University Bonn |
Metadata Details
| Metadata Creator: | Anastasia Bauer |
| Metadata Created: | 23.07.2014 |
| Metadata Last Updated: | 23.07.2014 |
| Subproject: | C4 |
| Funding Phase: | 2 |
| Metadata Language: | English |
| Metadata Version: | V50 |
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| Page Visits: | 617 |
| Metadata Downloads: | 0 |
| Dataset Downloads: | 3 |
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