Dr. José Antonio Sobrino Profile

Dr. José Antonio Sobrino

at Univ de València

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Publications (13)

Proceedings Article | 12 September 2021 Presentation + Paper

MORERA: latest Earth observation system to translate big data to agriculture

Ángel Alvaro, Jose Sobrino, Concepción Mira, Victoria Gonzalez-Dugo, Tomás Belenguer, Andrés Cifuentes, Javier Moreno

Proceedings Volume 11856, 1185603 (2021) https://doi.org/10.1117/12.2596842

KEYWORDS: Agriculture, Sensors, Artificial intelligence, Remote sensing, Evolutionary algorithms, Data modeling, Climate change, Calibration, Satellites, Nanoelectromechanical systems

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SPIE Journal Paper | 24 February 2015

New geo-portal for MODIS/SEVIRI image products with geolocation-based retrieval functionality

Jorge Sevilla, Yves Julien, Guillem Sòria, José Sobrino, Antonio Plaza

JARS, Vol. 9, Issue 01, 096079, (February 2015) https://doi.org/10.1117/12.10.1117/1.JRS.9.096079

KEYWORDS: MODIS, Image retrieval, Databases, Remote sensing, Sensors, Image sensors, Image filtering, Data storage, Image processing, Data processing

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A large number of remote sensing data sets have been collected in recent years by Earth observation instruments such as the moderate resolution imaging spectroradiometer (MODIS) aboard the Terra/Aqua satellite and the spinning enhanced visible and infrared imager (SEVIRI) aboard the geostationary platform Meteosat Second Generation. The advanced remote sensing products resulting from the analysis of these data are useful in a wide variety of applications but require significant resources in terms of storage, retrieval, and analysis. Despite the wide availability of these MODIS/SEVIRI products, the data coming from these instruments are spread among different locations and retrieved from different sources, and there is no common data repository from which the data or the associated products can be retrieved. We take a first step toward the development of a geo-portal for storing and efficiently retrieving MODIS/SEVIRI remote sensing products. The products are obtained using an automatic system that processes the data as soon as they are provided by the collecting antennas, and then the final products are uploaded with a one day delay in the geo-portal. Our focus in this work is on describing the design and efficient implementation of the geo-portal, which allows for a user-friendly and effective access to a full repository of MODIS/SEVIRI advanced products (comprising tens of terabytes of data) using geolocation retrieval capabilities. The geo-portal has been implemented as a web application composed of different layers. Its modular design provides quality of service and scalability (capacity for growth without any quality losing), allowing for the addition of components without the need to modify the entire system. On the client layer, an intuitive web browser interface provides users with remote access to the system. On the server layer, the system provides advanced data management and storage capabilities. On the storage layer, the system provides a secure massive storage service. An experimental evaluation of the geo-portal in terms of efficiency and product retrieval accuracy is also presented and discussed.

Proceedings Article | 23 October 2012 Paper

Critical analysis of the thermal inertia approach to map soil water content under sparse vegetation and changeable sky conditions

Antonino Maltese, Fulvio Capodici, Chiara Corbari, Giuseppe Ciraolo, Goffredo La Loggia, José Antonio Sobrino

Proceedings Volume 8531, 85310T (2012) https://doi.org/10.1117/12.975676

KEYWORDS: Soil science, Vegetation, Remote sensing, In situ remote sensing, Shortwaves, Thermal modeling, Diffusion, Francium, Thermal effects, Atmospheric modeling

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The paper reports a critical analysis of the thermal inertia approach to map surface soil water content on bare and sparsely vegetated soils by means of remotely sensed data. The study area is an experimental area located in Barrax (Spain). Field data were acquired within the Barrax 2011 research project. AHS airborne images including VIS/NIR and TIR bands were acquired both day and night time by the INTA (Instituto Nacional de Técnica Aeroespacial) between the 11^th and 13^rd of June 2011. Images cover a corn pivot surrounded by bare soil, where a set of in situ data have been collected previously and simultaneously to overpasses. To validate remotely sensed estimations, a preliminary proximity sensing set up has been arranged, measuring spectra and surface temperatures on transects by means of ASD hand-held spectroradiometer and an Everest Interscience radiometric thermometer respectively. These data were collected on two transects: the first one on bare soil and the second from bare to sparsely vegetated soil; soil water content in both transects ranged approximately between field and saturation values. Furthermore thermal inertia was measured using a KD2Pro probe, and surface water content of soil was measured using FDR and TDR probes. This ground dataset was used: 1) to verify if the thermal inertia method can be applied to map water content also on soil covered by sparse vegetation, and 2) to quantify a correction factor of the downwelling shortwave radiation taking into account sky cloudiness effects on thermal inertia assessment. The experiment tests both Xue and Cracknell approximation to retrieve the thermal inertia from a dumped value of the phase difference and the three-temperature approach of Sobrino to estimate the phase difference spatial distribution. Both methods were then applied on the remotely sensed airborne images collected during the following days, in order to obtain the spatial distribution of the surface soil moisture on bare soils and sparse vegetation coverage. Results verify that the thermal inertia method can be applied on sparsely vegetated soil characterized by fractional cover up to ~0.25 (maximum value within this experiment); a lumped value of the phase difference allows a good estimate of the thermal inertia, whereas the comparison with the three-temperature approach did not give conclusive responses because ground radiometric temperatures were not acquired in optimal conditions. Results also show that clear sky only at the time of the remote sensing acquisitions is not a sufficient condition to apply the thermal inertia method. A corrective coefficient taking into account the actual sky cloudiness throughout the day allows accurate estimates of the spatial distribution of the thermal inertia (r² ~ 0.9) and soil water content (r² ~ 0.7).

Proceedings Article | 20 October 2005 Paper

Global vegetation monitoring through multitemporal analysis of pathfinder AVHRR land database

Yves Julien, José Sobrino, Malena Zaragoza, Juan Cuenca, Mónica Gómez, Juan-Carlos Jiménez-Muñoz, Mireia Romaguera, Qingfeng Shen, Guillem Sòria

Proceedings Volume 5976, 59761F (2005) https://doi.org/10.1117/12.626809

KEYWORDS: Vegetation, Databases, Image classification, Satellites, Algorithm development, Climate change, Climatology, Aerosols, Spatial resolution, Clouds

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Proceedings Article | 24 February 2004 Paper

Land cover dynamic analysis over the Mediterranean Basin by means of remotely sensed and climate data

Jauad El Kharraz, Jose Sobrino, L. Morales, Juan Carlos Jimenez-Munoz, Guillem Soria, Monica Gomez, Mireia Romaguera

Proceedings Volume 5232, (2004) https://doi.org/10.1117/12.511265

KEYWORDS: Climatology, Vegetation, Satellites, Databases, Environmental sensing, Remote sensing, Data centers, Data modeling, Data archive systems, Resistance

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Proceedings Article | 24 February 2004 Paper

Characterization of thermal parameters in support of the SIFLEX campaign

Guillem Soria, Jose Sobrino, Juan Carlos Jimenez-Munoz, Jauad El Kharraz, Monica Gomez, Mireia Romaguera, Juan Cuenca

Proceedings Volume 5232, (2004) https://doi.org/10.1117/12.511459

KEYWORDS: Luminescence, Temperature metrology, Radiometry, Reflectivity, Thermography, Infrared radiation, Calibration, Sensors, Vegetation, Environmental sensing

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Proceedings Article | 9 February 2001 Paper

Surface temperature retrieval from MODIS data

Jose Sobrino, J. El-Kharraz, Z.-L. Li, Zhengming Wan

Proceedings Volume 4169, (2001) https://doi.org/10.1117/12.417105

KEYWORDS: MODIS, Satellites, Atmospheric sensing, Temperature metrology, Atmospheric modeling, Radiative transfer, Earth's atmosphere, Atmospheric particles, Data modeling, Satellite imaging

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Proceedings Article | 23 January 2001 Paper

Algorithms for estimating surface temperature from ATSR-2 data

Jose Sobrino, S. Reillo, S. Laporta, Juan Cuenca

Proceedings Volume 4171, (2001) https://doi.org/10.1117/12.413933

KEYWORDS: Actinium, Temperature metrology, Atmospheric sensing, Algorithms, Computer simulations, Satellites, Sensors, Statistical analysis, Radon, Ions

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Proceedings Article | 19 January 2001 Paper

Temperature and emissivity retrieval from DAIS data: application to the DAISEX campaigns in Colmar (France) and Barrax (Spain)

Jose Sobrino, S. Laporta, S. Reillo, Francoise Nerry

Proceedings Volume 4170, (2001) https://doi.org/10.1117/12.413907

KEYWORDS: Temperature metrology, Soil science, Algorithm development, Sensors, Airborne remote sensing, Spectroscopy, Computer simulations, Stereolithography, Data modeling, Ozone

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Proceedings Article | 14 December 1998 Paper

Net radiation of the Iberian Peninsula from NOAA-AVHRR data

Emilia Hurtado, Jose Sobrino

Proceedings Volume 3495, (1998) https://doi.org/10.1117/12.332684

KEYWORDS: Solar radiation, Satellites, Atmospheric modeling, Meteorology, Atmospheric corrections, Data modeling, Temperature metrology, Shortwaves, Sensors, Solar radiation models

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Proceedings Article | 14 December 1998 Paper

Correction for aerosol effects on satellite sea surface temperature measurements

Jose Sobrino, Laura Dempere-Marco, Eric Vermote, Juan Cuenca

Proceedings Volume 3495, (1998) https://doi.org/10.1117/12.332693

KEYWORDS: Aerosols, Atmospheric modeling, Atmospheric particles, Satellites, Sensors, Temperature metrology, Atmospheric corrections, Absorption, Algorithm development, Climatology

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Proceedings Article | 11 December 1998 Paper

New approach to thermal inertia determination using NOAA-AVHRR data: application to the Iberian Peninsula

Jose Sobrino, Mohamed El Kharraz, Emilia Hurtado

Proceedings Volume 3499, (1998) https://doi.org/10.1117/12.332745

KEYWORDS: Temperature metrology, Satellites, Thermal modeling, In situ metrology, Earth observing sensors, Visible radiation, Databases, Resistance, Data modeling, Sensors

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Proceedings Article | 11 December 1998 Paper

Experimental investigation of the angular variation of emissivity in the thermal infrared band

Jose Sobrino, Juan Cuenca, Mohamed El Kharraz, Laura Dempere-Marco

Proceedings Volume 3499, (1998) https://doi.org/10.1117/12.332778

KEYWORDS: Infrared radiation, Thermography, Radiometry, Temperature metrology, Error analysis, Satellites, Remote sensing, Sensors, Climatology, Electroluminescence

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Showing 5 of 13 publications

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