http://www.cnr.it/ontology/cnr/individuo/prodotto/ID92763

Using SAR and LAM Wind Fields to Investigate the Effects of Land/Atmosphere Interaction (Contributo in atti di convegno)

Type

Prodotto della ricerca (Classe)
Contributo in atti di convegno (Classe)

Label

Using SAR and LAM Wind Fields to Investigate the Effects of Land/Atmosphere Interaction (Contributo in atti di convegno) (literal)

Anno

2010-01-01T00:00:00+01:00 (literal)

Alternative label

S. Zecchetto; F. De Biasio; M. M. Miglietta; W. Biamino (2010)
Using SAR and LAM Wind Fields to Investigate the Effects of Land/Atmosphere Interaction
in The 2010 European Space Agency Living Planet Symposium, Bergen, NORWAY, June-July 2010
(literal)

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

S. Zecchetto; F. De Biasio; M. M. Miglietta; W. Biamino (literal)

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

Proceedings of the ESA Living Planet Symposium 2010, Bergen, Norway2010 (ESA SP-686, June-July 2010) (literal)

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

686 (literal)

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

686 (literal)

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

Al simposio sono stati presentati un poster, un intervento orale nella sezione \"sar winds\" ed un articolo nei proceedings. (literal)

Note

G (literal)

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

1-3 : Consiglio Nazionale delle Ricerche, Istituto di Scienze dell'Atmosfera e del Clima / 4 : Università degli Studi del Piemonte Orientale Amedeo Avogadro, Dipartimento di Scienze dell'Ambiente e della Vita. (literal)

Titolo

Using SAR and LAM Wind Fields to Investigate the Effects of Land/Atmosphere Interaction (literal)

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

978-92-9221-250-6 (literal)

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

H. Lacoste-Francis (literal)

Abstract

Modern satellite-borne synthetic aperture radar (SAR) images provide datasets at exceptionally high spatial resolutions, appropriate for investigating the mesoscale phenomena in the marine atmospheric boundary layer. Due to the still unsolved problems in the methodologies of wind field retrieval, and the poor temporal coverage at mid-latitudes offered by present SARs, the use of such wind fields is still limited. A fruitful application concerns the combined use of SAR and the hindcasts provided by limited area models, to study the effects of the land/atmosphere interaction. This has been carried out over an area, about 400 km by 400 km wide, around the Crete island in the eastern Mediterranean Sea, a region subject to complex wind patterns, due to the interaction of the almost steady northerly Etesian wind with the orography of the many islands in the region. The Weather Research \& Forecasting (WRF) atmospheric model has been used to hindcast the wind field at a horizontal resolution of 1 km over the area imaged by an Envisat ASAR image, from which the wind field has been extracted using a methodology based on the two-dimensional continuous wavelet transform. The 10 m wind fields resulting from the numerical simulations, carried out using different diffusion and boundary layer parameterization schemes, have been compared to the SAR-derived one, in order to select the most appropriate scheme, to analyze the correspondence of the observed and the simulated wind structures, and to evaluate the differences in direction and speed. Such a comparison has shown the possible benefits for both the modelling and SAR-wind extraction activities. (literal)

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