Resultados globales: 5 registros encontrados en 0.02 segundos.
Artículos, Encontrados 5 registros
Artículos Encontrados 5 registros  
1.
12 p, 6.4 MB GEOV2 : Improved smoothed and gap filled time series of LAI, FAPAR and FCover 1 km Copernicus Global Land products / Verger, Aleixandre (Centre de Recerca Ecològica i d'Aplicacions Forestals) ; Sánchez-Zapero, Jorge (The Earth Observation Laboratory (EOLAB)) ; Weiss, Marie (Avignon Université. Institut National de Recherche pour l'Agriculture, l'Alimentation et l'Environnement) ; Descals, Adrià (Centre de Recerca Ecològica i d'Aplicacions Forestals) ; Camacho, Fernando (The Earth Observation Laboratory (EOLAB)) ; Lacaze, Roselyne (Hygeos) ; Baret, Frédéric (Avignon Université. Institut National de Recherche pour l'Agriculture, l'Alimentation et l'Environnement)
Essential vegetation variables including leaf area index (LAI), fraction of absorbed photosynthetic active radiation (FAPAR) and fraction of green vegetation cover (FCover) are produced and distributed in the Copernicus Global Land Service. [...]
2023 - 10.1016/j.jag.2023.103479
International Journal of Applied Earth Observation and Geoinformation, Vol. 123 (September 2023) , art. 103479  
2.
17 p, 1.4 MB A comparison of methods for smoothing and gap filling time series of remote sensing observations : application to MODIS LAI products / Kandasamy, Sivasathivel (Institut National de la Recherche Agronomique) ; Baret, Frédéric (Institut National de la Recherche Agronomique) ; Verger, Aleixandre (Centre de Recerca Ecològica i d'Aplicacions Forestals) ; Neveux, Philippe (Institut National de la Recherche Agronomique) ; Weiss, Marie (Institut National de la Recherche Agronomique)
Moderate resolution satellite sensors including MODIS (Moderate Resolution Imaging Spectroradiometer) already provide more than 10 yr of observations well suited to describe and understand the dynamics of earth's surface. [...]
2013 - 10.5194/bg-10-4055-2013
Biogeosciences, Vol 10, Issue 6 (June 2013) , p. 4055-4071  
3.
22 p, 863.2 KB Near real-time vegetation monitoring at global scale / Verger, Aleixandre (Centre de Recerca Ecològica i d'Aplicacions Forestals) ; Baret, Frédéric (Institut National de la Recherche Agronomique (França)) ; Weiss, Marie (Institut National de la Recherche Agronomique (França))
The NRT algorithm for near-real time estimation of global LAI, FAPAR, and FCOVER variables from SPOT/VEGETATION (VGT) satellite data is described here. It consists of three steps: 1) neural networks (NNT) (one for each variable) to provide instantaneous estimates from daily VGT-P reflectances; 2) a multistep filtering approach to eliminate data mainly affected by atmospheric effects and snow cover; and 3) Savitzky-Golay and climatology temporal smoothing and gap filling techniques to ensure consistency and continuity as well as short-term projection of the product dynamics. [...]
2014 - 10.1109/JSTARS.2014.2328632
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, Vol. 7, no. 8 (August 2014) , p. 3473-3481  
4.
29 p, 6.0 MB Quality assessment of PROBA-V LAI, fAPAR and fCOVER collection 300 m products of copernicus global land service / Fuster, Beatriz (Parc Cientific University of Valencia. Earth Observation Laboratory) ; Sánchez-Zapero, Jorge (Parc Cientific University of Valencia. Earth Observation Laboratory) ; Camacho, Fernando (Parc Cientific University of Valencia. Earth Observation Laboratory) ; García-Santos, Vicente (Parc Cientific University of Valencia. Earth Observation Laboratory) ; Verger, Aleixandre (Centre de Recerca Ecològica i d'Aplicacions Forestals) ; Lacaze, Roselyne (HYGEOS (Lille, França)) ; Weiss, Marie (Institut National de la Recherche Agronomique (França)) ; Baret, Frédéric (Institut National de la Recherche Agronomique (França)) ; Smets, Bruno (Vlaamse Instelling voor Technologisch Onderzoek)
The Copernicus Global Land Service (CGLS) provides global time series of leaf area index (LAI), fraction of absorbed photosynthetically active radiation (fAPAR) and fraction of vegetation cover (fCOVER) data at a resolution of 300 m and a frequency of 10 days. [...]
2020 - 10.3390/rs12061017
Remote sensing (Basel), Vol. 12, issue 6 (March 2020) , art. 1017  
5.
42 p, 1.2 MB GEOCLIM : a global climatology of LAI, FAPAR, and FCOVER from VEGETATION observations for 1999-2010 / Verger, Aleixandre (Centre de Recerca Ecològica i d'Aplicacions Forestals) ; Baret, Frédéric (Institut National de la Recherche Agronomique (França)) ; Weiss, Marie (Institut National de la Recherche Agronomique (França)) ; Filella, Iolanda (Universitat Autònoma de Barcelona. Departament de Biologia Animal, de Biologia Vegetal i d'Ecologia) ; Peñuelas, Josep (Universitat Autònoma de Barcelona. Departament de Biologia Animal, de Biologia Vegetal i d'Ecologia)
Land-surface modelling would benefit significantly from improved characterisation of the seasonal variability of vegetation at a global scale. GEOCLIM, a global climatology of leaf area index (LAI), fraction of absorbed photosynthetically active radiation (FAPAR)-both essential climate variables-and fraction of vegetation cover (FCOVER), is here derived from observations from the SPOT VEGETATION programme. [...]
2015 - 10.1016/j.rse.2015.05.027
Remote sensing of environment, Vol. 166 (Set. 2015) , p. 126-137  

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