Mathematics – Logic
Scientific paper
Apr 2003
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003eaeja.....5840b&link_type=abstract
EGS - AGU - EUG Joint Assembly, Abstracts from the meeting held in Nice, France, 6 - 11 April 2003, abstract #5840
Mathematics
Logic
Scientific paper
Long term Eddy Covariance (EC) measurements of CO2 and water vapour fluxes are recorded at the Anchor Station Tharandt since 1996 over a spruce stand near Dresden, Germany. Based on these measurements the energy and carbon exchange of the site is modelled using HIRVAC (High Resolution Vegetation Atmosphere Coupler). HIRVAC is based on the 1.5 dimensional planetary boundary layer model HUB (developed at the Humboldt University Berlin). It has a resolution of 120 model layers covering a range from 0-2km height. The model layers are coupled via the turbulent exchange using a k-approach. The planetary boundary layer model is coupled with the analytic photosynthesis module PSN6 (University of Bayreuth). Gas exchange data was used to define parameter functions of spruce (Picea abies), pine (Pinus sylvestris), grass and herbs. Recent work on the model included the implementation of a multi layer soil water model which is taken from the hydrological model BROOK90 and provides the option for a more detailed soil water modelling, considering up to 10 soil layers with different characteristics. An interception module is included using a storage cascade over all model layers within the canopy. HIRVAC is tested and run successfully for the Tharandt site, looking mainly at latent and sensible heat flux. Since the photosynthesis module PSN6 is included and the leaf gas exchange can be calculated, further studies aim to use the model for the calculation of carbon fluxes, as well. This is done using CO2 concentrations at ground level as input data. The first model results appear to be realistic and are presented in comparison with measured data of the Anchor Station Tharandt.
Baums A.-B.
Bernhofer Ch.
Goldberg Vladislav V.
No associations
LandOfFree
Quantifying the CO2-fluxes over a spruce stand with the coupled vegetation-boundary-layer model HIRVAC does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Quantifying the CO2-fluxes over a spruce stand with the coupled vegetation-boundary-layer model HIRVAC, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Quantifying the CO2-fluxes over a spruce stand with the coupled vegetation-boundary-layer model HIRVAC will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-843287