Modeling energy and mass fluxes over a vineyard using the ACASA model (Abstract/Poster in atti di convegno)

Type
Label
  • Modeling energy and mass fluxes over a vineyard using the ACASA model (Abstract/Poster in atti di convegno) (literal)
Anno
  • 2012-01-01T00:00:00+01:00 (literal)
Alternative label
  • Serena Marras, Veronica Bellucco, Dave Pyles, Matthias Falk, Costantino Sirca, Pierpaolo Duce, Richard L Snyder, Kyaw Tha Paw U, Donatella Spano (2012)
    Modeling energy and mass fluxes over a vineyard using the ACASA model
    in 2012 Fall Meeting, AGU, San Francisco, 3-7 Dicembre 2012
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Serena Marras, Veronica Bellucco, Dave Pyles, Matthias Falk, Costantino Sirca, Pierpaolo Duce, Richard L Snyder, Kyaw Tha Paw U, Donatella Spano (literal)
Note
  • Abstract (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • University of Sassari, Sassari, SS, Italy. CMCC, Euro-Mediterranean Centre for Climate Change, Sassari, Italy. CNR-IBIMET, National Research Council-Institute of Biometeorology, Sassari, Italy. University of California, Davis, CA, United States. (literal)
Titolo
  • Modeling energy and mass fluxes over a vineyard using the ACASA model (literal)
Abstract
  • Energy and mass fluxes are widely monitored over natural ecosystems by the Eddy Covariance (EC) towers within the FLUXNET monitoring network. Only a few studies focused on EC measurements over tree crops and vines, and there is a lack of information useful to parameterize crop and flux models over such systems. The aim of this study was to improve our knowledge about the performance of the land surface model ACASA (Advanced Canopy-Atmosphere-Soil Algorithm) in estimating energy, water, and carbon fluxes over a typical Mediterranean vineyard located in Southern Sardinia (Italy). ACASA estimates turbulent fluxes per 20 canopy layers (10 layers within and 10 above the canopy) and 15 soil layers, using third-order closure equations. CO2 fluxes are estimated using a combination of Ball-Berry and Farquhar equations. The model parameters derived from literature, from a previous work conducted in Tuscany (Italy) and from direct measurements collected in the experimental site of this study. An Eddy Covariance measurement tower was installed to continuously monitor sensible and latent heat, and CO2 fluxes, in conjunction with a net radiometer, and soil heat flux plates from June 2009. A meteorological station was also set up for ancillary measurements. Model performance was evaluated by RMSE and linear regression statistics. Results for the energy balance components and CO2 exchanges will be presented. Detailed analysis was devoted to evaluate the model ability in estimating the vineyard evapotranspiration. This term of the energy balance is, in fact, important for farmers since they are mainly interested in quantify crop water requirements for a better irrigation management. (literal)
Editore
Prodotto di
Autore CNR
Insieme di parole chiave

Incoming links:


Prodotto
Autore CNR di
Editore di
Insieme di parole chiave di
data.CNR.it