http://www.cnr.it/ontology/cnr/individuo/prodotto/ID76716

Practical application of the surface renewal method (Abstract/Poster in atti di convegno)

Type

Prodotto della ricerca (Classe)
Abstract/Poster in atti di convegno (Classe)

Label

Practical application of the surface renewal method (Abstract/Poster in atti di convegno) (literal)

Anno

2006-01-01T00:00:00+01:00 (literal)

Alternative label

SNYDER R.L., SPANO D., DUCE P., PAW K.T. (2006)
Practical application of the surface renewal method
in 27th Conference on Agricultural and Forest Meteorology, San Diego, CA, 22-25 May 2006
(literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori

SNYDER R.L., SPANO D., DUCE P., PAW K.T. (literal)

Pagina inizio

111149 (literal)

Pagina fine

111149 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url

https://ams.confex.com/ams/BLTAgFBioA/webprogram/Paper111149.html (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#titoloVolume

Proceedings of the 27th Conference on Agricultural and Foret Meteorology (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali

1 (literal)

Note

Abstract (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni

University of California, Atmospheric Science, Davis, CA, USA Università di Sassari, Dipartimento di Economia e Sistemi Arborei CNR-IBIMET, Sassari (literal)

Titolo

Practical application of the surface renewal method (literal)

Abstract

One of the biggest problems in irrigation management is the lack of good, information on crop evapotranspiration (ETc), which is commonly estimated as the product of reference evapotranspiration (ETo) that accounts for weather variation and a crop coefficient factor (Kc) that adjusts for crop and management factors. Although ETc can be measured using lysimeters, eddy covariance, Bowen ratio, etc., the cost and complexity have discouraged agronomists and engineers from using these methods for long-term, seasonal measurements. Each of the measurement methods has good and bad points as well as limitations; however, the clear lack of good Kc information indicates that they are not widely accepted and used. The surface renewal (SR) method was first presented by Paw U and Brunet in the early 1990s, and it was later refined in several field experiments to eliminate the need for use of a computer to collect the field data. The method involves collecting high frequency temperature data that are analyzed with a structure function to quantify ramp characteristics that are common in the temperature traces. Now the data are easily collected, processed, and archived within a data-logger in the field. Like all methods, SR has its downfalls - the main problem being that it must be calibrated in the field using a sonic anemometer. In this paper, we will discuss our experiences with the practical application of the SR method to determine seasonal Kc curves and possible methods to simplify the calibration requirement. (literal)

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