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    • A modified downscaling approach to estimate SMOS soil moisture at high resolution (300 M) using Copernicus Sentinel 3 NDVI 

      Pablos Hernández, Miriam; Portal González, Gerard; Camps Carmona, Adriano José; Vall-Llossera Ferran, Mercedes Magdalena; González-Haro, Cristina; Portabella Arnus, Marcos (Institute of Electrical and Electronics Engineers (IEEE), 2023)
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      A modification of the Barcelona Expert Center (BEC) algorithm to downscale the Soil Moisture and Ocean Salinity (SMOS) soil moisture (SM) to 300 m spatial resolution is presented. It maintains the same functional relationship ...

    • A new space technology for ocean observation: the SMOS mission 

      Font Ferré, Jordi; Ballabrera Poy, Joaquim; Camps Carmona, Adriano José; Corbella Sanahuja, Ignasi; Duffo Ubeda, Núria; Durán Martínez, Israel; Emelianov Kolomitski, Mikhail; Enrique González, Luis; Fernández Gallego, Pedro; Gabarró Prats, Carolina; González, Cristina; González, Veronica; Gourrion, J.; Guimbard, S.; Hoareau, N.; Julià, A; Kalaroni, S.; Konstantinidou, Anna; Aretxabaleta, L.; Martínez, Justino; Miranda, Jorge Miguel; Monerris Belda, Alessandra; Montero, Sergio; Mourre, B.; Pablos Hernández, Miriam; Pérez Villar, Fernando; Piles Guillem, Maria; Portabella, M.; Sabia, R.; Salvador, Joaquin; Talone, Marco; Torres Torres, Francisco; Turiel Martínez, Antonio; Vall-Llossera Ferran, Mercedes Magdalena; Villarino Villarino, Ramón (2012)
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      Capability for sea surface salinity observation was an important gap in ocean remote sensing in the last few decades of the 20th century. New technological developments during the 1990s at the European Space Agency led to ...

    • A random forest approach for soil moisture estimation at 60 meters spatial resolution 

      Portal González, Gerard; Vall-Llossera Ferran, Mercedes Magdalena; López Martínez, Carlos; Camps Carmona, Adriano José; Pablos Hernández, Miriam; Chaparro Danon, David; Irawan, Amir Mustofa; Alonso González, Alberto; Jagdhuber, Thomas (Institute of Electrical and Electronics Engineers (IEEE), 2023)
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      A Random Forest (RF) regression-tree method to derive high-resolution (60 m) surface soil moisture maps is proposed in this study. The developed methodology integrates multi-source synergies by incorporating information ...

    • A sensitivity study of land surface temperature to soil moisture using in-situ and spaceborne observations 

      Pablos Hernández, Miriam; Piles Guillem, Maria; Sanchez, Nilda; Gonzalez Gambau, Verónica; Vall-Llossera Ferran, Mercedes Magdalena; Camps Carmona, Adriano José; Martinez Fernandez, Jose (Institute of Electrical and Electronics Engineers (IEEE), 2014)
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      Surface Soil Moisture (SSM) affects the soil surface energy balance and thus affects the Land Surface Temperature (LST), and viceversa. Currently, LST and SSM are remotely sensed using TIR sensors and L-band radiometers, ...

    • A spatially consistent downscaling approach for SMOS using an adaptive window 

      Portal González, Gerard; Vall-Llossera Ferran, Mercedes Magdalena; Piles de la Fuente, María Pilar; Camps Carmona, Adriano José; Chaparro Danon, David; Pablos Hernández, Miriam; Rossato, Luciana (Institute of Electrical and Electronics Engineers (IEEE), 2017)
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      The ESA's Soil Moisture and Ocean Salinity (SMOS, 2009-2017) is the first mission using L-band radiometry to monitor the Earth's global surface soil moisture (SM). After more than 7 years in orbit, many studies have ...

    • Airborne GNSS-R, thermal and optical data relationships for soil moisture retrievals 

      Sánchez, Nilda; Alonso Arroyo, Alberto; González Zamora, Ángel; Martinez Fernandez, Jose; Camps Carmona, Adriano José; Vall-Llossera Ferran, Mercedes Magdalena; Pablos Hernández, Miriam; Herrero Jimenez, Carlos M. (Institute of Electrical and Electronics Engineers (IEEE), 2015)
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      New remote sensing techniques based on the analysis of the Earth's surface-reflected signal from the Global Navigation Satellite Systems (GNSS-Reflectometry, or GNSS-R in short) are emerging. Soil moisture and vegetation ...

    • An airborne GNSS-R field experiment over a vineyard for soil moisture estimation and monitoring 

      Alonso Arroyo, Alberto; Camps Carmona, Adriano José; Sanchez, Nilda; Pablos Hernández, Miriam; González Zamora, Ángel; Martinez Fernandez, Jose; Vall-Llossera Ferran, Mercedes Magdalena; Pascual, D. (Institute of Electrical and Electronics Engineers (IEEE), 2015)
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      The Light Airborne Reflectometer for GNSS-R Observations (LARGO) is an airborne instrument designed for measuring the coherent reflectivity from different soils. In this work, an improved version of LARGO has been used in ...

    • Analyzing spatio-temporal factors to estimate the response time between SMOS and in-situ soil moisture at different depths 

      Herbert, Christoph Josef; Pablos Hernández, Miriam; Vall-Llossera Ferran, Mercedes Magdalena; Camps Carmona, Adriano José; Martinez Fernandez, Jose (Multidisciplinary Digital Publishing Institute (MDPI), 2020-08-13)
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      A comprehensive understanding of temporal variability of subsurface soil moisture (SM) is paramount in hydrological and agricultural applications such as rainfed farming and irrigation. Since the SMOS (Soil Moisture and ...

    • Assessment of multi-scale SMOS and SMAP soil moisture products across the Iberian Peninsula 

      Portal González, Gerard; Jagdhuber, Thomas; Vall-Llossera Ferran, Mercedes Magdalena; Camps Carmona, Adriano José; Pablos Hernández, Miriam; Entekhabi, Dara; Piles, María (Multidisciplinary Digital Publishing Institute (MDPI), 2020-02-01)
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      In the last decade, technological advances led to the launch of two satellite missions dedicated to measure the Earth’s surface soil moisture (SSM): the ESA’s Soil Moisture and Ocean Salinity (SMOS) launched in 2009, and ...

    • Burned area prediction in Southern Asia using machine learning with land and atmospheric parameters 

      Irawan, Amir Mustofa; Vall-Llossera Ferran, Mercedes Magdalena; López Martínez, Carlos; Camps Carmona, Adriano José; Chaparro Danon, David; Portal González, Gerard; Pablos Hernández, Miriam (Institute of Electrical and Electronics Engineers (IEEE), 2023)
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      In the work a random forest model has been implemented as an interpretable machine learning tool in the effort to estimate the burned areas caused by fire outbreaks in India, Pakistan, and Myanmar in April and May 2022. ...

    • Correlated triple collocation to estimate SMOS, SMAP and ERA5-Land soil moisture errors 

      Pablos Hernández, Miriam; Turiel Martínez, Antonio; Vall-Llossera Ferran, Mercedes Magdalena; Camps Carmona, Adriano José; Portabella, Marcos (Institute of Electrical and Electronics Engineers (IEEE), 2021)
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      The novel Correlated Triple Collocation (CTC) analysis allows to assess three different data sources of similar spatial resolutions, but with two of them being correlated. In this study, the CTC was applied to estimate the ...

    • Earth remote sensing with SMOS, Aquarius and SMAP missions 

      Pablos Hernández, Miriam (Universitat Politècnica de Catalunya, 2016-10-03)
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      The first three of a series of new generation satellites operating at L-band microwave frequencies have been launch in the last decade. L-band is particularly sensitive to the presence of water content in the scene under ...

    • From experimental campaigns to BEC - CP34 salinity products: Tribute to the Contributions of prof. Font to the SMOS Mission 

      Camps Carmona, Adriano José; Gabarró Prats, Carolina; Vall-Llossera Ferran, Mercedes Magdalena; Blanch Boris, Sebastián; Aguasca Solé, Alberto; Torres Torres, Francisco; Corbella Sanahuja, Ignasi; Duffo Ubeda, Núria; Turiel, Antonio; Portabella, Marcos; Ballabrera-Poy, Joaquim; González-Gambau, Verónica; Martínez, Justino; Villarino Villarino, Ramón; Enrique, Luis; Monerris Belda, Sandra; Bosch, Xavier; Sabia, Roberto; Talone, Marco; Piles Guillem, Maria; Pablos Hernández, Miriam; Valencia, Enric (2016-09-01)
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      This article summarizes some of the activities in which Jordi Font, research professor and head of the Department of Physical and Technological Oceanography, Institut de Ciències del Mar (CSIC, Spanish National Research ...

    • From field experiments to salinity products: a tribute to the contributions of Jordi Font to the SMOS mission 

      Camps Carmona, Adriano José; Gabarró Prats, Carolina; Vall-Llossera Ferran, Mercedes Magdalena; Blanch Boris, Sebastián; Aguasca Solé, Alberto; Torres Torres, Francisco; Corbella Sanahuja, Ignasi; Duffo Ubeda, Núria; Turiel Martínez, Antonio; Portabella, Marcos; Ballabrera Poy, Joaquim; González Gambau, V.; Martinez, Justino; Villarino Villarino, Ramón; Monerris Belda, Sandra; Bosch Lluís, Xavier; Sabia, Roberto; Talone, Marco; Piles Guillem, Maria; Pablos Hernández, Miriam; Valencia Domènech, Enric (2016-09-01)
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      This article summarizes some of the activities in which Jordi Font, research professor and head of the Department of Physical and Technological Oceanography, Institut de Ciències del Mar (CSIC, Spanish National Research ...

    • FSSCat Mission description and first scientific results of the FMPL-2 onboard 3CAT-5/A 

      Camps Carmona, Adriano José; Muñoz Martin, Joan Francesc; Ruiz De Azúa Ortega, Juan Adrián; Fernandez Capon, Lara Pilar; Pérez Portero, Adrián; Llaveria Godoy, David; Herbert, Christoph Josef; Pablos Hernández, Miriam; Golkar, Alessandro; Gutiérrez Peña, Antonio (Institute of Electrical and Electronics Engineers (IEEE), 2021)
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      FSSCat, the “Federated Satellite Systems/ 3 Cat-5” mission was the winner of the 2017 ESA S^3 (Sentinel Small Satellite) Challenge and overall winner of the Copernicus Masters competition. FSSCat consists of two 6 unit ...

    • FSSCat: The Federated Satellite Systems 3Cat Mission: Demonstrating the capabilities of CubeSats to monitor essential climate variables of the water cycle 

      Camps Carmona, Adriano José; Muñoz Martin, Joan Francesc; Ruiz De Azúa Ortega, Juan Adrián; Fernandez Capon, Lara Pilar; Pérez Portero, Adrián; Llaveria Godoy, David; Herbert, Christoph Josef; Pablos Hernández, Miriam; Golkar, Alessandro; Gutiérrez Peña, Antonio (Institute of Electrical and Electronics Engineers (IEEE), 2022-12)
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      The Federated Satellite Systems/ 3 Cat-5 (FSSCat) mission was the winner of the European Space Agency (ESA) Sentinel Small Satellite (S 3 ) Challenge and overall winner of the 2017 Copernicus Masters competition. It consisted ...

    • Ice thickness effects on Aquarius brightness temperatures over Antarctica 

      Pablos Hernández, Miriam; Piles Guillem, Maria; Gonzalez Gambau, Verónica; Camps Carmona, Adriano José; Vall-Llossera Ferran, Mercedes Magdalena (2015-04-01)
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      The Dome-C region, in the East Antarctic Plateau, is regarded as an ideal natural laboratory for calibration/validation of space-borne microwave radiometers. At L-band, the thermal stability of this region has been confirmed ...

    • Impact of day/night time land surface temperature in soil moisture disaggregation algorithms 

      Pablos Hernández, Miriam; Piles Guillem, Maria; Sánchez, Nilda; Vall-Llossera Ferran, Mercedes Magdalena; Martinez Fernandez, Jose; Camps Carmona, Adriano José (2016-09-15)
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      Since its launch in 2009, the ESA’s SMOS mission is providing global soil moisture (SM) maps at ~40 km, using the first L-band microwave radiometer on space. Its spatial resolution meets the needs of global applications, ...

    • Impact of incidence angle diversity on SMOS and sentinel-1 soil moisture retrievals at coarse and fine scales 

      Portal González, Gerard; Vall-Llossera Ferran, Mercedes Magdalena; Piles Guillem, María; Jagdhuber, Thomas; Camps Carmona, Adriano José; Pablos Hernández, Miriam; López Martínez, Carlos; Das, Narendra; Entekhabi, Dara (Institute of Electrical and Electronics Engineers (IEEE), 2022-01-01)
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      Incidence angle diversity of space-borne radiometer and radar systems operating at low microwave frequencies needs to be taken into consideration to accurately estimate soil moisture (SM) across spatial scales. In this ...

    • Incidence angle diversity on L-band microwave radiometry and its impact on consistent soil moisture retrievals 

      Portal González, Gerard; Vall-Llossera Ferran, Mercedes Magdalena; Jagdhuber, Thomas; Camps Carmona, Adriano José; Pablos Hernández, Miriam; Piles Guillem, María (Institute of Electrical and Electronics Engineers (IEEE), 2021)
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      Incidence angle diversity of space-borne L-band radiometers needs to be taken into account for a consistent estimation of surface soil moisture (SM). In this study, the Land Parameter Retrieval Model (LPRM) is applied to ...