Monitoring irrigation volumes using high resolution NDVI image time series : calibration and validation in the Kairouan plain - fdi:010072192 - Horizon

Horizon / Plein textes La base de ressources documentaires de l'IRD

IRD

Publications des scientifiques de l'IRD

Saadi S., Simonneaux Vincent, Boulet Gilles, Mougenot Bernard, Chabaane Z. L. (2015). Monitoring irrigation volumes using high resolution NDVI image time series : calibration and validation in the Kairouan plain. In : Neale C. M. U. (ed.), Maltese A. (ed.) Remote sensing for agriculture, ecosystems, and hydrology XVII. Bellingham : SPIE, (9637), art. no 963710 [15 p. en ligne] (Proceedings of SPIE : the International Society for Optical Engineering ; 9637). Conference on Remote Sensing for Agriculture Ecosystems and Hydrology : part of the International Symposium on Remote Sensing, 17., Toulouse (FRA), 2015/09/22-24. ISBN 978-1-62841-847-7

Accès réservé (Intranet IRD) Document en accès réservé (Intranet IRD)

Lien direct chez l'éditeur doi:10.1117/12.2195183

Titre
Monitoring irrigation volumes using high resolution NDVI image time series : calibration and validation in the Kairouan plain
Année de publication2015
Type de documentArticle référencé dans le Web of Science WOS:000367321800018
AuteursSaadi S., Simonneaux Vincent, Boulet Gilles, Mougenot Bernard, Chabaane Z. L.
InNeale C. M. U. (ed.), Maltese A. (ed.) Remote sensing for agriculture, ecosystems, and hydrology XVII
SourceBellingham : SPIE, 2015, art. no 963710 [15 p. en ligne] (Proceedings of SPIE : the International Society for Optical Engineering ; 9637). ISBN 978-1-62841-847-7
ColloqueConference on Remote Sensing for Agriculture Ecosystems and Hydrology : part of the International Symposium on Remote Sensing, 17., Toulouse (FRA), 2015/09/22-24
RésuméThe increasing availability of high resolution high repetitively VIS-NIR remote sensing, like the forthcoming Sentinel-2 mission to be launched in 2015, offers unprecedented opportunity to improve agricultural monitoring. In this study, regional evapotranspiration and crop water consumption were estimated over an irrigated area located in the Kairouan plain (central Tunisia) using the FAO-56 dual crop coefficient water balance model combined with NDVI image time series providing estimates of the actual basal crop coefficient (Kcb) and vegetation fraction cover. Three time series of high-resolution SPOT5 images have been acquired for the 2008-2009, 2011-2012 and 2012-2013 hydrological years. We also benefited from a SPOT4 time series acquired in the frame of the SPOT4-Take5 experiment. The SPOT5 images were radiometrically corrected, first, using the SMAC6s Algorithm, and then improved using invariant objects located on the scene. The method was first calibrated using ground measurements of evapotranspiration achieved using eddy-correlation devices installed on irrigated wheat and barley plots. For other crops for which no calibration data was available, parameters were taken from bibliography. Then, the model was run to spatialize irrigation over the whole area and a validation was done using cumulated seasonal water volumes obtained from ground survey for three irrigated perimeters. In a subsequent step, evapotranspiration estimates were obtained using a large aperture scintillometer and were used for an additional validation of the model outputs.
Plan de classementTélédétection [126] ; Hydrologie [062] ; Bioclimatologie [072] ; Economie et sociologie rurale [098]
LocalisationFonds IRD [F B010072192]
Identifiant IRDfdi:010072192
Lien permanenthttp://www.documentation.ird.fr/hor/fdi:010072192

Export des données

Disponibilité des documents

Télechargment fichier PDF téléchargeable

Lien sur le Web lien chez l'éditeur

Accès réservé en accès réservé

HAL en libre accès sur HAL


Accès aux documents originaux :

Le FDI est labellisé CollEx

Accès direct

Bureau du chercheur

Site de la documentation

Espace intranet IST (accès réservé)

Suivi des publications IRD (accès réservé)

Mentions légales

Services Horizon

Poser une question

Consulter l'aide en ligne

Déposer une publication (accès réservé)

S'abonner au flux RSS

Voir les tableaux chronologiques et thématiques

Centres de documentation

Bondy

Montpellier (centre IRD)

Montpellier (MSE)

Nouméa

Papeete

Niamey

Ouagadougou

Tunis

La Paz

Quito