Browsing by Author "Pablos Hernández, Miriam"Més informacióMés informació

Now showing items 1-20 of 44

    • 60-m resolution soil moisture estimation based on a multisensor feedforward neural network model 

      Portal González, Gerard; Vall-Llossera Ferran, Mercedes Magdalena; López Martínez, Carlos; Camps Carmona, Adriano José; Pablos Hernández, Miriam; Alonso González, Alberto; Jagdhuber, Thomas; Irawan, Amir Mustofa (Institute of Electrical and Electronics Engineers (IEEE), 2024)
      Article
      Open Access
      Understanding soil moisture (SM) at high spatio-temporal resolution provides crucial insights across various societal disciplines due to its direct impact on environmental and natural disaster monitoring, weather forecasting, ...

    • A feedforward neural network for ESA CCI soil moisture disaggregation 

      Portal González, Gerard; Vall-Llossera Ferran, Mercedes Magdalena; López Martínez, Carlos; Camps Carmona, Adriano José; Alonso González, Alberto; Irawan, Amir Mustofa; Pablos Hernández, Miriam (Institute of Electrical and Electronics Engineers (IEEE), 2024)
      Conference report
      Open Access
      This study presents a methodology for disaggregating the ESA Climate Change Initiative (CCI) Soil Moisture (SM) maps from 0.25° to a 60 m grid, using a feedforward neural network. This technique is applied over an area of ...

    • 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)
      Conference report
      Open Access
      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)
      Article
      Restricted access - publisher's policy
      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)
      Conference report
      Open Access
      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)
      Conference report
      Restricted access - publisher's policy
      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)
      Conference report
      Restricted access - publisher's policy
      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)
      Conference lecture
      Restricted access - publisher's policy
      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)
      Conference lecture
      Restricted access - publisher's policy
      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)
      Article
      Open Access
      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)
      Article
      Open Access
      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 ...

    • Bayesian network analysis of land-atmosphere interactions affecting burned areas in India during the 2022 South Asia heatwave 

      Irawan, Amir Mustofa; Vall-Llossera Ferran, Mercedes Magdalena; López Martínez, Carlos; Camps Carmona, Adriano José; Chaparro Danon, David; Portal González, Gerard; Pablos Hernández, Miriam; Alonso González, Alberto (Institute of Electrical and Electronics Engineers (IEEE), 2024)
      Conference lecture
      Open Access
      This study addresses discerning causal relationships in complex systems, a key aspect of interpretable machine learning. It focuses on the unusual and intense early summer weather in South Asia during April and May 2022 ...

    • 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)
      Conference lecture
      Open Access
      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)
      Conference lecture
      Open Access
      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)
      Doctoral thesis
      Open Access
      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)
      Article
      Open Access
      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)
      Article
      Open Access
      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)
      Conference report
      Open Access
      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)
      Article
      Open Access
      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)
      Article
      Open Access
      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 ...