| dc.contributor | Lagacherie, Philippe | |
| dc.contributor | Prevot, Laurent | |
| dc.contributor | Centre Internatinal d Etudes Superieures en Sciences Agronomiques | |
| dc.creator | Galleguillos-Torres, Mauricio | |
| dc.date | 2017-03-28T18:36:00Z | |
| dc.date | 2022-08-19T15:22:57Z | |
| dc.date | 2017-03-28T18:36:00Z | |
| dc.date | 2022-08-19T15:22:57Z | |
| dc.date | 2010 | |
| dc.date.accessioned | 2023-08-22T10:27:53Z | |
| dc.date.available | 2023-08-22T10:27:53Z | |
| dc.identifier | http://creativecommons.org/licenses/by-nc-nd/3.0/cl/ | |
| dc.identifier | https://hdl.handle.net/10533/180175 | |
| dc.identifier.uri | https://repositorioslatinoamericanos.uchile.cl/handle/2250/8339986 | |
| dc.description | Vineyard hydric status is recognized as an essential factor for wine-producing. At the field scale, research work allowed to clevelop different methods for hyclric status characterization. However, because of tedious implementation, these methods are useless at the watershed scale. whereas hydric status information at this scale is strongly needed. The main objective of this stud y is to spatialize vineyard hydric status over a Mediterranean watershed. The study site is located in the basse vallée ele la Peyne. a 65 km2 wine-producing area, that is representative of the Mediterranean vineyards. The general procedure lo achieve this objective was to spatialize actual evapotranspiration (ET), choose as an hydric status indicator, using two spatialiLed models (S-SEBl Roerin.k et al., 2000 and WDT. Moran el al., 1994) that were derived from therma l infrared remole sensing imagery (ASTER sensor). The results of these models were validated by comparison with local ET measurements and simulations. These simulations performed by a water transfer model HYDRUS- ID, (Simunek et al., 1998), represents an original valiclation method to obtain local ET over an importan! number of sites, at a minimal experimental cost. A sensibility study allowed to identify the robustness of these spatialized models to the experimental conditions. After checking that local ET simulations obtained by the HYDRUS-ID approach were correctly simulated, we showed that S-SEBT and WDI spatialized models allowed to estímate ET with satisfactory accuracies. The more empiric S-SEBI model produced better results than the WDI model (RMSE about 0.8 mm.d-1 and 1.1 mm.d-1 respectively). Further, the sensibility study showed that these spatialisation approaches were sensitive to experimental conditions, (spatial extent for S-SEBI and wind speed for WDI). Finally, these spatialisation results depicted for importan! ET spatio-temporal variability over the Peyne watershed. The spatial patterns retrieved by the two models are similar and seems to be strongly related to pedological and landscape characteristics within the study site. | |
| dc.description | PFCHA-Becas | |
| dc.description | Doctorado de Interior y Sociedad | |
| dc.description | 272p. | |
| dc.description | PFCHA-Becas | |
| dc.description | TERMINADA | |
| dc.format | application/pdf | |
| dc.language | fra | |
| dc.relation | instname: Conicyt | |
| dc.relation | reponame: Repositorio Digital RI2.0 | |
| dc.relation | instname: Conicyt | |
| dc.relation | reponame: Repositorio Digital RI2.0 | |
| dc.relation | handle/10533/108040 | |
| dc.relation | info:eu-repo/grantAgreement/PFCHA-Becas/RI20 | |
| dc.relation | info:eu-repo/semantics/dataset/hdl.handle.net/10533/93488 | |
| dc.rights | Atribución-NoComercial-SinDerivadas 3.0 Chile | |
| dc.rights | info:eu-repo/semantics/openAccess | |
| dc.title | Spatialisatión du statut hydrique de la vigne sur un bassin versant mediterraneen par teledetectión optique | |
| dc.type | Tesis Doctorado | |
| dc.type | info:eu-repo/semantics/doctoralThesis | |
| dc.type | info:eu-repo/semantics/publishedVersion | |
| dc.type | Tesis | |
| dc.coverage | París | |
