Evaluating the influence of plant-specific physiological parameterizations on the partitioning of land surface energy fluxes
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| Title: | Main Title: Evaluating the influence of plant-specific physiological parameterizations on the partitioning of land surface energy fluxes |
| Description: | Abstract: Plant physiological properties have a significant influence on the partitioning of radiative forcing, the spatial and temporal variability of soil water and soil temperature dynamics, and the rate of carbon fixation. Because of the direct impact on latent heat fluxes, these properties may also influence weather generating processes, such as the evolution of the atmospheric boundary. In this work, crop-specific physiological characteristics, retrieved from detailed field measurements, are included in the biophysical parameterization of the Terrestrial Systems Modeling Platform (TerrSysMP). The measured set of parameters for two typical European mid-latitudinal crops (sugar beet and winter wheat) is validated using eddy covariance measurements over multiple years from three measurement sites located in the North Rhine-Westphalia region, Germany. Comparison with observations and a simulation utilizing the generic crop type shows clear improvements when using the crop-specific physiological characteristics of the plant. In particular, the increase of latent heat fluxes in conjunction with decreased sensible heat fluxes as simulated by the two crops leads to an improved quantification of the diurnal energy partitioning. An i independent analysis carried out using estimates of gross primary production reveals that the better agreement between observed and simulated latent heat adopting the plant-specific physiological properties largely stems from an improved simulation of the photosynthesis process. Finally, to evaluate the effects of the crop-specific parameterizations on the atmospheric boundary layer dynamics, we perform a series of semi-idealized land-atmosphere coupled simulations by hypothesizing three cropland configurations. The use of a mixing-diagram approach highlights the different heat and moisture budgets of the atmospheric boundary layer when using the crop-specific physiological properties. |
| Identifier: | 10.1175/JHM-D-14-0153.1 (DOI) |
Responsible Party
| Creators: | Mauro Sulis (Author), Matthias Langensiepen (Author), Prabhakar Shrestha (Author), Anke Schickling (Author), Clemens Simmer (Author), Stefan Kollet (Author) |
| Publisher: | American Meteorological Society |
| Publication Year: | 2014 |
Topic
| TR32 Topic: | Vegetation |
| Related Subproject: | Z4 |
| Subject: | Keyword: Energy Balance |
| Geogr. Information Topic: | Climatology/Meteorology/Atmosphere |
File Details
| Filename: | Sulis_2015_JHM.pdf |
| Data Type: | Text - Article |
| File Size: | 1.6 MB |
| Date: | Submitted: 15.08.2014 |
| Mime Type: | application/pdf |
| Data Format: | |
| Language: | English |
| Status: | Completed |
Constraints
| Download Permission: | Free |
| 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 - Publication
| Publication Status: | Published |
| Review Status: | Peer reviewed |
| Publication Type: | Article |
| Article Type: | Journal |
| Source: | Journal of Hydrometeorology |
| Issue: | 2 |
| Volume: | 16 |
| Number of Pages: | 17 (517 - 533) |
Metadata Details
| Metadata Creator: | Mauro Sulis |
| Metadata Created: | 18.09.2014 |
| Metadata Last Updated: | 18.09.2014 |
| Subproject: | Z4 |
| Funding Phase: | 2 |
| Metadata Language: | English |
| Metadata Version: | V50 |
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| Page Visits: | 948 |
| Metadata Downloads: | 0 |
| Dataset Downloads: | 7 |
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