Artículos

Artículos Encontrados 32 registros  anterior11 - 20siguientefinal  ir al registro: La búsqueda tardó 0.01 segundos. 
11.
9 p, 4.0 MB Evaluation and normalization of topographic effects on vegetation indices / Chen, Rui (Southwest Jiaotong University) ; Yin, Gaofei (Centre de Recerca Ecològica i d'Aplicacions Forestals) ; Liu, Guoxiang (Southwest Jiaotong University) ; Li, Jing (Chinese Academy of Sciences. Institute of Remote Sensing and Digital Earth) ; Verger, Aleixandre (Centre de Recerca Ecològica i d'Aplicacions Forestals)
The normalization of topographic effects on vegetation indices (VIs) is a prerequisite for their proper use in mountainous areas. We assessed the topographic effects on the normalized difference vegetation index (NDVI), the enhanced vegetation index (EVI), the soil adjusted vegetation index (SAVI), and the near-infrared reflectance of terrestrial vegetation (NIRv) calculated from Sentinel-2. [...]
2020 - 10.3390/rs12142290
Remote sensing (Basel), Vol. 12, Issue 14 (July 2020) , art. 2290  
12.
6 p, 1.5 MB A threshold method for robust and fast estimation of land-surface phenology using Google Earth Engine / Descals, Adrià (Centre de Recerca Ecològica i d'Aplicacions Forestals) ; Verger, Aleixandre (Centre de Recerca Ecològica i d'Aplicacions Forestals) ; Yin, Gaofei (Centre de Recerca Ecològica i d'Aplicacions Forestals) ; Peñuelas, Josep (Centre de Recerca Ecològica i d'Aplicacions Forestals)
Cloud-based platforms are changing the way of analyzing remotely sensed data by providing high computational power and rapid access to massive volumes of data. Several types of studies use cloud-based platforms for global-scale analyses, but the number of land-surface phenology (LSP) studies that use cloud-based platforms is low. [...]
2021 - 10.1109/JSTARS.2020.3039554
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, Vol. 14 (2021) , p. 601-606  
13.
10 p, 1.2 MB A broadband green-red vegetation index for monitoring gross primary production phenology / Yin, Gaofei (Centre de Recerca Ecològica i d'Aplicacions Forestals) ; Verger, Aleixandre (Centre de Recerca Ecològica i d'Aplicacions Forestals) ; Descals, Adrià (Centre de Recerca Ecològica i d'Aplicacions Forestals) ; Filella, Iolanda (Centre de Recerca Ecològica i d'Aplicacions Forestals) ; Peñuelas, Josep (Centre de Recerca Ecològica i d'Aplicacions Forestals)
The chlorophyll/carotenoid index (CCI) is increasingly used for remotely tracking the phenology of photosynthesis. However, CCI is restricted to few satellites incorporating the 531nm band. This study reveals that the Moderate Resolution Imaging Spectroradiometer (MODIS) broadband green reflectance (band 4) is significantly correlated with this xanthophyll-sensitive narrowband (band 11) (R2 = 0:98, p < 0:001), and consequently, the broadband green-red vegetation index GRVI-computed with MODIS band 1 and band 4-is significantly correlated with CCI-computed with MODIS band 1 and band 11 (R2 = 0:97, p < 0:001). [...]
2022 - 10.34133/2022/9764982
Journal of Remote Sensing, Vol. 2022 (March 2022) , art. 9764982  
14.
21 p, 10.6 MB Monitoring the responses of deciduous forest phenology to 2000-2018 climatic anomalies in the Northern Hemisphere / Bórnez Mejías, Kevin (Centre de Recerca Ecològica i d'Aplicacions Forestals) ; Verger, Aleixandre (Centre de Recerca Ecològica i d'Aplicacions Forestals) ; Descals, Adrià (Centre de Recerca Ecològica i d'Aplicacions Forestals) ; Peñuelas, Josep (Centre de Recerca Ecològica i d'Aplicacions Forestals)
Monitoring the phenological responses of deciduous forests to climate is important, due to the increasing frequency and intensity of extreme climatic events associated with climate change and global warming, which will in turn affect vegetation seasonality. [...]
2021 - 10.3390/rs13142806
Remote sensing (Basel), Vol. 13, Issue 14 (February 2021) , art. 2806  
15.
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  
16.
13 p, 8.2 MB Improved estimates of arctic land surface phenology using Sentinel-2 time series / Descals, Adrià (Centre de Recerca Ecològica i d'Aplicacions Forestals) ; Yin, Gaofei (Centre de Recerca Ecològica i d'Aplicacions Forestals) ; Peñuelas, Josep (Centre de Recerca Ecològica i d'Aplicacions Forestals) ; Verger, Aleixandre (Centre de Recerca Ecològica i d'Aplicacions Forestals)
The high spatial resolution and revisit time of Sentinel-2A/B tandem satellites allow a potentially improved retrieval of land surface phenology (LSP). The biome and regional characteristics, however, greatly constrain the design of the LSP algorithms. [...]
2020 - 10.3390/rs12223738
Remote sensing (Basel), Vol. 12, Issue 22 (November 2020) , art. 3738  
17.
17 p, 5.2 MB Evaluation of VEGETATION and PROBA-V Phenology Using PhenoCam and Eddy Covariance Data / Bórnez Mejías, Kevin (Centre de Recerca Ecològica i d'Aplicacions Forestals) ; Richardson, Andrew D. (Northern Arizona University. School of Informatics, Computing and Cyber Systems) ; Verger, Aleixandre (Centre de Recerca Ecològica i d'Aplicacions Forestals) ; Descals, Adrià (Centre de Recerca Ecològica i d'Aplicacions Forestals) ; Peñuelas, Josep (Centre de Recerca Ecològica i d'Aplicacions Forestals)
High-quality retrieval of land surface phenology (LSP) is increasingly important for understanding the effects of climate change on ecosystem function and biosphere-atmosphere interactions. We analyzed four state-of-the-art phenology methods: threshold, logistic-function, moving-average and first derivative based approaches, and retrieved LSP in the North Hemisphere for the period 1999-2017 from Copernicus Global Land Service (CGLS) SPOT-VEGETATION and PROBA-V leaf area index (LAI) 1 km V2. [...]
2020 - 10.3390/rs12183077
Remote sensing (Basel), Vol. 12, Issue 18 (September 2020) , p. 3077  
18.
14 p, 911.1 KB Divergent estimates of forest photosynthetic phenology using structural and physiological vegetation indices / Yin, Gaofei (Centre de Recerca Ecològica i d'Aplicacions Forestals) ; Verger, Aleixandre (Centre de Recerca Ecològica i d'Aplicacions Forestals) ; Filella, Iolanda (Centre de Recerca Ecològica i d'Aplicacions Forestals) ; Descals, Adrià (Centre de Recerca Ecològica i d'Aplicacions Forestals) ; Peñuelas, Josep (Centre de Recerca Ecològica i d'Aplicacions Forestals)
The accurate estimation of photosynthetic phenology using vegetation indices (VIs) is important for measuring the interannual variation of atmospheric CO2 concentrations, but the relative performances of structural and physiological VIs remain unclear. [...]
2020 - 10.1029/2020GL089167
Geophysical Research Letters, Vol. 47, issue 18 (Sep. 2020) , e2020GL0891672020  
19.
11 p, 8.1 MB Land surface phenology from VEGETATION and PROBA-V data. Assessment over deciduous forests / Bórnez Mejías, Kevin (Centre de Recerca Ecològica i d'Aplicacions Forestals) ; Descals, Adrià (Centre de Recerca Ecològica i d'Aplicacions Forestals) ; Verger, Aleixandre (Centre de Recerca Ecològica i d'Aplicacions Forestals) ; Peñuelas, Josep (Centre de Recerca Ecològica i d'Aplicacions Forestals)
Land surface phenology has been widely retrieved although no consensus exists on the optimal satellite dataset and the method to extract phenology metrics. This study is the first comprehensive comparison of vegetation variables and methods to retrieve land surface phenology for 1999-2017 time series of Copernicus Global Land products derived from SPOT-VEGETATION and PROBA-V data. [...]
2020 - 10.1016/j.jag.2019.101974
International journal of applied earth observation and geoinformation, Vol. 84 (Feb. 2020) , art. 101974  
20.
18 p, 4.5 MB Retrieval of high spatiotemporal resolution leaf area index with Gaussian processes, wireless sensor network, and satellite data fusion / Yin, Gaofei (Southwest Jiaotong University. Faculty of Geosciences and Environmental Engineering) ; Verger, Aleixandre (Centre de Recerca Ecològica i d'Aplicacions Forestals) ; Qu, Yonghua (Beijing Normal University. Institute of Remote Sensing Science and Engineering) ; Zhao, Wei (Chinese Academy of Sciences. Institute of Mountain Hazards and Environment) ; Xu, Baodong (Huazhong Agricultural University. Macro Agriculture Research Institute) ; Zeng, Yelu (Carnegie Institution for Science (Washington, Estats Units d'Amèrica). Department of Global Ecology) ; Liu, Ke (Sichuan Academy of Agricultural Science. Institute of Remote Sensing Application) ; Li, Jing (Chinese Academy of Sciences. Institute of Remote Sensing and Digital Earth) ; Liu, Qinhuo (Chinese Academy of Sciences. Institute of Remote Sensing and Digital Earth)
Many applications, including crop growth and yield monitoring, require accurate long-term time series of leaf area index (LAI) at high spatiotemporal resolution with a quantification of the associated uncertainties. [...]
2019 - 10.3390/rs11030244
Remote sensing (Basel), Vol. 11, Issue 3 (February 2019) , art. 244  

Artículos : Encontrados 32 registros   anterior11 - 20siguientefinal  ir al registro:
Vea también: autores con nombres similares
61 Verger, Antoni
17 Verger, Antoni,
61 verger, Antoni
¿Le interesa recibir alertas sobre nuevos resultados de esta búsqueda?
Defina una alerta personal vía correo electrónico o subscríbase al canal RSS.