[1051] - Evaluating the influence of plant-specific physiological parameterizations on the partitioning of land surface energy fluxes

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Sulis, M., Langensiepen, M., Shrestha, P., Schickling, A., Simmer, C., Kollet, S., 2015. Evaluating the influence of plant-specific physiological parameterizations on the partitioning of land surface energy fluxes. Journal of Hydrometeorology, 16 (2), 517 - 533. DOI: 10.1175/JHM-D-14-0153.1.
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Title(s):Main Title: Evaluating the influence of plant-specific physiological parameterizations on the partitioning of land surface energy fluxes
Description(s):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(s):DOI: 10.1175/JHM-D-14-0153.1
Responsible Party
Creator(s):Author: Mauro Sulis
Author: Matthias Langensiepen
Author: Prabhakar Shrestha
Author: Anke Schickling
Author: Clemens Simmer
Author: Stefan Kollet
Publisher:American Meteorological Society
TR32 Topic:Vegetation
Subject(s):CRC/TR32 Keywords: Energy Balance
Topic Category:ClimatologyMeteorologyAtmosphere
File Details
File Name:Sulis_2015_JHM.pdf
Data Type:Text
File Size:1677 kB (1.638 MB)
Date(s):Date Submitted: 2014-08-15
Mime Type:application/pdf
Data Format:PDF
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
North:-no map data
Measurement Region:RurCatchment
Measurement Location:--RurCatchment--
Specific Informations - Publication
Article Type:Journal
Source:Journal of Hydrometeorology
Number Of Pages:17
Page Range:517 - 533
Metadata Details
Metadata Creator:Mauro Sulis
Metadata Created:2014-09-18
Metadata Last Updated:2014-09-18
Funding Phase:2
Metadata Language:English
Metadata Version:V40
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