UAB Digital Repository of Documents 28 records found  1 - 10nextend  jump to record: Search took 0.01 seconds. 
1.
27 p, 2.5 MB Evaluation and aggregation properties of thermal Infra-Red-based evapotranspiration algorithms from 100 m to the km scale over a semi-arid irrigated agricultural area / Bahir, Malik (Université d'Avignon et des Pays de Vaucluse) ; Boulet, Gilles (Université de Toulouse) ; Olioso, Albert (Université d'Avignon et des Pays de Vaucluse) ; Rivalland, Vincent (Université de Toulouse) ; Gallego Elvira, Belén (NERC Centre for Ecology and Hydrology) ; Mira Sarrió, Maria (Universitat Autònoma de Barcelona. Departament de Geografia) ; Rodríguez, Julio César (Universidad de Sonora) ; Jarlan, Lionel (Université de Toulouse) ; Merlin, Olivier (Université de Toulouse)
Evapotranspiration (ET) estimates are particularly needed for monitoring the available water of arid lands. Remote sensing data offer the ideal spatial and temporal coverage needed by irrigation water management institutions to deal with increasing pressure on available water. [...]
2017 - 10.3390/rs9111178
Remote Sensing, Vol. 9, Issue 11 (November 2017) , art. 1178  
2.
14 p, 1.3 MB Spatiotemporally representative and cost-efficient sampling design for validation activities in wanglang experimental site / Yin, Gaofei (Chinese Academy of Sciences) ; Li, Ainong (Chinese Academy of Sciences) ; Verger Ten, Aleixandre (Centre de Recerca Ecològica i Aplicacions Forestals)
Spatiotemporally representative Elementary Sampling Units (ESUs) are required for capturing the temporal variations in surface spatial heterogeneity through field measurements. Since inaccessibility often coexists with heterogeneity, a cost-efficient sampling design is mandatory. [...]
2017 - 10.3390/rs9121217
Remote Sensing, Vol. 9, Issue 12 (December 2017) , art. 1217  
3.
24 p, 5.4 MB Improving mean minimum and maximum month-to-month air temperature surfaces using satellite-derived land surface temperature / Mira Sarrió, Maria (Universitat Autònoma de Barcelona. Departament de Geografia) ; Ninyerola i Casals, Miquel (Universitat Autònoma de Barcelona. Departament de Biologia Animal, de Biologia Vegetal i d'Ecologia) ; Batalla, Meritxell (Universitat Autònoma de Barcelona) ; Pesquer Mayos, Lluís (Centre de Recerca Ecològica i Aplicacions Forestals) ; Pons, Xavier (Universitat Autònoma de Barcelona. Departament de Geografia)
Month-to-month air temperature (T) surfaces are increasingly demanded to feed quantitative models related to a wide range of fields, such as hydrology, ecology or climate change studies. Geostatistical interpolation techniques provide such continuous and objective surfaces of climate variables, while the use of remote sensing data may improve the estimates, especially when temporal resolution is detailed enough. [...]
2017 - 10.3390/rs9121313
Remote Sensing, Vol. 9, Issue 12 (December 2017) , art. 1313  
4.
26 p, 20.7 MB Radiometric correction of simultaneously acquired Landsat-7/Landsat-8 and Sentinel-2A imagery using Pseudoinvariant Areas (PIA) : Contributing to the Landsat time series legacy / Padró Garcia, Joan-Cristian (Universitat Autònoma de Barcelona. Departament de Geografia) ; Pons, Xavier (Universitat Autònoma de Barcelona. Departament de Geografia) ; Aragonés, David (Estación Biológica de Doñana) ; Díaz-Delgado, Ricardo (Estación Biológica de Doñana) ; García, Diego (Estación Biológica de Doñana) ; Bustamante, Javier (Estación Biológica de Doñana) ; Pesquer Mayos, Lluís (Centre de Recerca Ecològica i Aplicacions Forestals) ; Domingo Marimon, Cristina (Centre de Recerca Ecològica i Aplicacions Forestals) ; González Guerrero, Óscar (Universitat Autònoma de Barcelona. Departament de Geografia) ; Cristóbal Rosselló, Jordi (University of Alaska Fairbanks) ; Doktor, Daniel (Helmholtz Centre for Environmental Research-UFZ) ; Lange, Maximilian (Helmholtz Centre for Environmental Research-UFZ)
The use of Pseudoinvariant Areas (PIA) makes it possible to carry out a reasonably robust and automatic radiometric correction for long time series of remote sensing imagery, as shown in previous studies for large data sets of Landsat MSS, TM, and ETM+ imagery. [...]
2017 - 10.3390/rs9121319
Remote Sensing, Vol. 9, Issue 12 (December 2017) , art. 1319  
5.
11 p, 1.9 MB Assessing ecosystem isoprene emissions by hyperspectral remote sensing / Balzarolo, Manuela (Centre de Recerca Ecològica i Aplicacions Forestals) ; Peñuelas, Josep (Centre de Recerca Ecològica i Aplicacions Forestals) ; Filella Cubells, Iolanda (Centre de Recerca Ecològica i Aplicacions Forestals) ; Portillo-Estrada, Miguel (University of Antwerp. Center of Excellence PLECO) ; Ceulemans, Reinhart (University of Antwerp. Center of Excellence PLECO)
This study examined the relationship between foliar isoprene emissions, light use efficiency and photochemical reflectance index (PRI) throughout the canopy profile and explored the contribution of xanthophyll cycle pigments versus other carotenoid pigments to the isoprene/PRI relationship. [...]
2018 - 10.3390/rs10071086
Remote Sensing, Vol. 10, Núm. 7 (July 2018) , art. 1086  
6.
26 p, 7.2 MB Radiometric correction of Landsat-8 and Sentinel-2A scenes using drone imagery in synergy with field spectroradiometry / Padró Garcia, Joan-Cristian (Universitat Autònoma de Barcelona. Departament de Geografia) ; Muñoz, Francisco-Javier (HEMAV S.L.) ; Ávila, Luis Ávila (Universidad del Azuay. Instituto de Estudios de Régimen Seccional del Ecuador) ; Pesquer Mayos, Lluís (Centre de Recerca Ecològica i Aplicacions Forestals) ; Pons, Xavier (Universitat Autònoma de Barcelona. Departament de Geografia)
The main objective of this research is to apply unmanned aerial system (UAS) data in synergy with field spectroradiometry for the accurate radiometric correction of Landsat-8 (L8) and Sentinel-2 (S2) imagery. [...]
2018 - 10.3390/rs10111687
Remote Sensing, Vol. 10, Núm. 11 (November 2018) , art. 1687  
7.
23 p, 2.4 MB Characterisation of Functional-Trait Dynamics at High Spatial Resolution in a Mediterranean Forest from Sentinel-2 and Ground-Truth Data / Schauman, Santiago (Universidad Nacional de San Luis & CONICET. Grupo de Estudios Ambientales) ; Verger Ten, Aleixandre (Centre de Recerca Ecològica i Aplicacions Forestals) ; Filella Cubells, Iolanda (Centre de Recerca Ecològica i Aplicacions Forestals) ; Peñuelas, Josep (Centre de Recerca Ecològica i d'Aplicacions Forestals)
The characterisation of functional-trait dynamics of vegetation from remotely sensed data complements the structural characterisation of ecosystems. In this study we characterised for the first time the spatial heterogeneity of the intra-annual dynamics of the fraction of absorbed photosynthetically active radiation (FAPAR) as a functional trait of the vegetation in Prades Mediterranean forest in Catalonia, Spain. [...]
2018 - 10.3390/rs10121874
Remote sensing, Vol. 10, Núm 12 (November 2018) , art. 1874  
8.
27 p, 2.9 MB Potential of Photochemical reflectance index for indicating photochemistry and light use efficiency in leaves of European beech and Norway spruce trees / Kováč, Daniel (Global Change Research Institute CAS) ; Veselovská, Petra (Global Change Research Institute CAS) ; Klem, Karel (Global Change Research Institute CAS) ; Večeřová, Kristýna (Global Change Research Institute CAS) ; Ač, Alexander (Global Change Research Institute CAS) ; Peñuelas, Josep (Centre de Recerca Ecològica i Aplicacions Forestals) ; Urban, Otmar (Global Change Research Institute CAS)
Hyperspectral reflectance is becoming more frequently used for measuring the functions and productivity of ecosystems. The purpose of this study was to re-evaluate the potential of the photochemical reflectance index (PRI) for evaluating physiological status of plants. [...]
2018 - 10.3390/rs10081202
Remote Sensing, Vol. 10, Núm. 8 (July 2018) , art. 1202  
9.
Dual link image coding for earth observation satellites / Aulí Llinàs, Francesc (Universitat Autònoma de Barcelona. Departament d'Enginyeria de la Informació i de les Comunicacions) ; Marcellin, Michael W. (University of Arizona. Department of Electrical and Computer Engineering) ; Sánchez, Victor (University of Warwick. Department of Computer Science) ; Bartrina Rapesta, Joan (Universitat Autònoma de Barcelona. Departament d'Enginyeria de la Informació i de les Comunicacions) ; Hernandez-Cabronero, Miguel (University of Arizona. Department of Electrical and Computer Engineering)
The conventional strategy to download images captured by satellites is to compress the data on board and then transmit them via the downlink. It often happens that the capacity of the downlink is too small to accommodate all the acquired data, so the images are trimmed and/or transmitted through lossy regimes. [...]
2018 - 10.1109/TGRS.2018.2806082
IEEE transactions on geoscience and remote sensing, Vol. 56, issue 9 (September 2018) , p. 5083-5096  
10.
Multilevel split regression wavelet analysis for lossless compression of remote sensing data / Álvarez-Cortés, Sara (Universitat Autònoma de Barcelona. Departament d'Enginyeria de la Informació i de les Comunicacions) ; Bartrina Rapesta, Joan (Universitat Autònoma de Barcelona. Departament d'Enginyeria de la Informació i de les Comunicacions) ; Serra Sagristà, Joan (Universitat Autònoma de Barcelona. Departament d'Enginyeria de la Informació i de les Comunicacions)
Spectral redundancy is a key element to be exploited in compression of remote sensing data. Combined with an entropy encoder, it can achieve competitive lossless coding performance. One of the latest techniques to decorrelate the spectral signal is the regression wavelet analysis (RWA). [...]
2018 - 10.1109/LGRS.2018.2850938
Geoscience and remote sensing letters, Vol. 15 issue 10 (Oct. 2018) , p. 1540-1544  

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