Scheda di dettaglio – i prodotti della ricerca
| Dato | Valore |
|---|---|
| Title | ACTUAL EVAPOTRANSPIRATION BY USE OF MODIS DATA |
| Abstract | The aim of this research is to assess a technique to retrieve actual evapotranspiration (ET) maps from remote sensing images by the combination of two different procedures. The first one, known as triangle method, computes the evapotranspiration fraction (EF) defined as the ratio LE/Rn, where Rn is the net radiation at the surface and LE is the latent heat flux. LE is directly proportional to ET. In order to retrieve LE, and consequently the surface evapotranspiration, a second procedure computes the net radiation of the investigated area. Therefore, by inversion, it is possible to obtain an estimate of the ET. |
| Source | IGARSS 2012IEEE International Geoscience and Remote Sensing Symposium proceedings (Print), pp. 6689–6692 |
| Keywords | Actual evapotranspirationNet RadiationRemote SensingPrecision Farming |
| Journal | IEEE International Geoscience and Remote Sensing Symposium proceedings (Print) |
| Editor | IEEE Service Center [distributor],, Piscataway, NJ, Stati Uniti d'America |
| Year | 2012 |
| Type | Contributo in atti di convegno |
| Authors | Matarrese, Raffaella; Portoghese, Ivan; Vurro, Michele; Soldo, Pietro |
| Text | 299639 2012 ISI Web of Science WOS 000313189406166 Actual evapotranspiration Net Radiation Remote Sensing Precision Farming ACTUAL EVAPOTRANSPIRATION BY USE OF MODIS DATA Matarrese, Raffaella; Portoghese, Ivan; Vurro, Michele; Soldo, Pietro CNR IRSA The aim of this research is to assess a technique to retrieve actual evapotranspiration ET maps from remote sensing images by the combination of two different procedures. The first one, known as triangle method, computes the evapotranspiration fraction EF defined as the ratio LE/Rn, where Rn is the net radiation at the surface and LE is the latent heat flux. LE is directly proportional to ET. In order to retrieve LE, and consequently the surface evapotranspiration, a second procedure computes the net radiation of the investigated area. Therefore, by inversion, it is possible to obtain an estimate of the ET. The validation of these variables, net radiation and evapotranspiration derived from MODIS data, has been undertaken on the Capitanata area, Southern Italy, by comparison of model results with in situ measurements provided by the Consorzio per la Bonifica della Capitanata di Foggia. IGARSS 2012 Internazionale Contributo in atti di convegno IEEE Service Center distributor , 2153 6996 IEEE International Geoscience and Remote Sensing Symposium proceedings Print IEEE International Geoscience and Remote Sensing Symposium proceedings Print IEEE Int. Geosci. Remote Sensing Symp. proc. Print IEEE International Geoscience and Remote Sensing Symposium proceedings / Print IGARSS Print IEEE IGARSS Print ivan.portoghese PORTOGHESE IVAN raffaella.matarrese MATARRESE RAFFAELLA michele.vurro VURRO MICHELE |