• Coupling hysteresis analysis with sediment and hydrological connectivity in three agricultural catchments in Navarre, Spain 

      Keesstra, Saskia D.; Davis, Jason; Masselink, Rens Hein; Casalí, Javier; Peeters, Edwin T.H.M.; Dijksma, Roel (Springer Verlag, 2019)   Artículo / Artikulua
      Purpose: Rain storm events mobilise large proportions of fine sediments in catchment systems. Sediments from agriculturalcatchments are often adsorbed by nutrients, heavy metals and other (in)organic pollutants that may ...
    • Runoff, nutrients, sediment and salt yields in an irrigated watershed in southern Navarre (Spain) 

      Merchán Elena, Daniel Upna; Casalí Sarasíbar, Javier Upna; Valle de Lersundi, Jokin del; Campo Bescós, Miguel Ángel Upna; Giménez Díaz, Rafael Upna; Preciado, Beatriz; Lafarga, Alberto (Elsevier, 2018)   Artículo / Artikulua
      The environmental impact of irrigated agriculture on water quality was assessed in Landazuria watershed (Navarre, northeast Spain), a 479.5 ha watershed with 53% of irrigated agricultural land. In the framework of a long-term ...
    • Sustainable unfired bricks manufacturing from construction anddemolition wastes 

      Seco Meneses, Andrés; Omer, Joshua; Marcelino Sádaba, Sara; Espuelas Zuazu, Sandra; Prieto Cobo, Eduardo (Elsevier, 2018)   Artículo / Artikulua
      The management of construction and demolition wastes is a huge challenge for most Governments. Thegreatest component of such wastes is concrete and masonry fragments or remains. Among the most com-mon approaches to ...
    • Technical and environmental characterization of hydraulic and alkaline binders 

      Espuelas Zuazu, Sandra; Echeverría, Angel María; Marcelino Sádaba, Sara; Prieto Cobo, Eduardo; Seco Meneses, Andrés (Elsevier, 2018)   Artículo / Artikulua
      Portland cement is a widely used binder in construction and building applications because of its good properties. Despite its convenience as construction material, the social demands and policies trends are requesting a ...
    • Comparison between capacitive and microstructured optical fiber soil moisture sensors 

      López Aldaba, Aitor Upna; López Torres, Diego Upna; Campo Bescós, Miguel Ángel Upna; López Rodríguez, José Javier; Yerro Lizarazu, David; Elosúa Aguado, César Upna; Arregui San Martín, Francisco Javier Upna; Auguste, Jean-Louis; Jamier, Raphael; Roy, Philippe; López-Amo Sáinz, Manuel Upna (MDPI, 2018)   Artículo / Artikulua  OpenAccess
      Soil moisture content has always been an important parameter to control because it is a deterministic factor for site-specific irrigation, seeding, transplanting, and compaction detection. In this work, a discrete sensor ...
    • On the assimilation set-up of ASCAT soil moisture data for improving streamflow catchment simulation 

      Loizu Maeztu, Javier Upna; Massari, Christian; Álvarez Mozos, Jesús Upna; Tarpanelli, Angelica; Brocca, Luca; Casalí Sarasíbar, Javier Upna (Elsevier, 2018)   Artículo / Artikulua
      Assimilation of remotely sensed surface soil moisture (SSM) data into hydrological catchment models has been identified as a means to improve stream flow simulations, but reported results vary markedly depending on the ...
    • Automatic detection of uprooted orchards based on orthophoto texture analysis 

      Ciriza Labiano, Raquel; Sola Torralba, Ion Upna; Albizua, Lourdes; Álvarez Mozos, Jesús Upna; González Audicana, María Upna (MDPI, 2017)   Artículo / Artikulua  OpenAccess
      Permanent crops, such as olive groves, vineyards and fruit trees, are important in European agriculture because of their spatial and economic relevance. Agricultural geographical databases (AGDBs) are commonly used by ...
    • Residual stresses with time-independent cyclic plasticity in finite element analysis of welded joints 

      Lostado Lorza, Rubén; Corral Bobadilla, Marina; Martínez Calvo, María Ángeles; Villanueva Roldán, Pedro Upna (MDPI, 2017)   Artículo / Artikulua  OpenAccess
      Due to the intense concentration of heat in a reduced area when Gas Metal Arc Welding (GMAW) is used to join mechanical components, the regions near the weld bead are subjected to severe thermal cycles. Firstly, the region ...
    • Understanding top management's decision-making on implementing project management systems: an exploratory study 

      Arraiza Irujo, Juan; Pérez Ezcurdia, Amaya Upna (Mechanical Engineering Faculty in Slavonski Brod, 2017)   Artículo / Artikulua  OpenAccess
      Top Management’s motivation to invest in improving their organisation’s Project Management processes and practices is arguably an important under-researched phenomenon. In this paper we present the results of an exploratory ...
    • Prediction of main potato compounds by NIRS 

      López-Maestresalas, Ainara Upna; Pérez Roncal, Claudia; Tierno, Roberto; Arazuri Garín, Silvia Upna; Ruiz de Galarreta, José Ignacio Upna; Jarén Ceballos, Carmen Upna (AIDIC, 2017)   Artículo / Artikulua  OpenAccess
      Potato (Solanum tuberosum, L) compounds are generally determined by analytical methods including gasliquid chromatography (GLC), HPLC and UV-VIS spectrophotometry. These methods require a lot of time and are destructive. ...
    • A multi-year analysis of traffic accidents involving agricultural tractors 

      Arnal Atarés, Pedro Upna; López-Maestresalas, Ainara Upna; Arazuri Garín, Silvia Upna; Mangado, Jesús Upna; Jarén Ceballos, Carmen Upna (AIDIC, 2017)   Artículo / Artikulua  OpenAccess
      The agricultural sector in Spain is responsible for a high rate of accidents every year, and many of them are traffic accidents. Tractors are a relatively rare sight on roads, meaning that the incidence of accidents involving ...
    • Assessing hillslope-channel connectivity in an agricultural catchment using rare-earth oxide tracers and random forests models 

      Masselink, R. J. H.; Temme, A. J. A. M.; Giménez Díaz, Rafael Upna; Casalí Sarasíbar, Javier Upna; Keesstra, S. D. (Universidad de la Rioja, 2017)   Artículo / Artikulua  OpenAccess
      Soil erosion from agricultural areas is a large problem because of off-site effects like the rapid filling of reservoirs. To mitigate the problem of sediments from agricultural areas reaching the channel, reservoirs and ...
    • Monitoring water vapour with GNSS during a heavy rainfall event in the Spanish Mediterranean area 

      Priego, E.; Jones, J.; Porres, M. J.; Seco Meneses, Andrés (Taylor & Francis, 2017)   Artículo / Artikulua  OpenAccess
      The Spanish Mediterranean area is periodically affected by torrential rainfall events during autumn. In September 2012, one of these episodes took place with up to 50 mm of rain in a 1-hour period and with more than 300 ...
    • Magnesium oxide as alternative binder for unfired clay bricks manufacturing 

      Espuelas Zuazu, Sandra; Omer, Joshua; Marcelino Sádaba, Sara; Echeverría, Angel María; Seco Meneses, Andrés (Elsevier, 2017)   Artículo / Artikulua
      Replacement of fired bricks by unfired ones could be an effective way to reduce the building industryenvironmental footprint: Their manufacture not only requires less energy and natural resources but alsogenerates less waste. ...
    • Multi-criteria evaluation of topographic correction methods 

      Sola Torralba, Ion Upna; González Audicana, María Upna; Álvarez Mozos, Jesús Upna (Elsevier, 2016)   Artículo / Artikulua  OpenAccess
      In the last decades, several topographic correction methods (TOC) have been proposed, but there is not an agreement on the best method. Furthermore, different evaluation criteria have been used in the past, and there is ...
    • Evaluation of TOPLATS on three Mediterranean catchments 

      Loizu Maeztu, Javier Upna; Álvarez Mozos, Jesús Upna; Casalí Sarasíbar, Javier Upna; Goñi Garatea, Mikel Upna (Elsevier, 2016)   Artículo / Artikulua  OpenAccess
      Physically based hydrological models are complex tools that provide a complete description of the different processes occurring on a catchment. The TOPMODEL-based Land-Atmosphere Transfer Scheme (TOPLATS) simulates water ...
    • Evaluation of surface roughness parameters in agricultural soils with different tillage conditions using a laser profile meter 

      Martínez de Aguirre Escobar, Alejandro Upna; Álvarez Mozos, Jesús Upna; Giménez Díaz, Rafael Upna (Elsevier, 2016)   Artículo / Artikulua  OpenAccess
      Surface roughness crucially affects the hydrological and erosive behaviours of soils. In agricultural areas surface roughness is directly related to tillage, whose action strongly affects the key physical properties of ...
    • On the added value of quad-pol data in a multi-temporal crop classification framework based on RADARSAT-2 imagery 

      Larrañaga, Arantzazu Upna; Álvarez Mozos, Jesús Upna (MDPI, 2016)   Artículo / Artikulua  OpenAccess
      Polarimetric SAR images are a rich data source for crop mapping. However, quad-pol sensors have some limitations due to their complexity, increased data rate, and reduced coverage and revisit time. The main objective of ...
    • The added value of stratified topographic correction of multispectral images 

      Sola Torralba, Ion Upna; González Audicana, María Upna; Álvarez Mozos, Jesús Upna (MDPI, 2016)   Artículo / Artikulua  OpenAccess
      Satellite images in mountainous areas are strongly affected by topography. Different studies demonstrated that the results of semi-empirical topographic correction algorithms improved when a stratification of land covers ...
    • Effects of spatial sampling interval on roughness parameters and microwave backscatter over agricultural soil surfaces 

      Barber, Matías Ernesto; Grings, Francisco Matías; Álvarez Mozos, Jesús Upna; Piscitelli, Marcela; Perna, Pablo Alejandro; Karszenbaum, Haydee (MDPI, 2016)   Artículo / Artikulua  OpenAccess
      The spatial sampling interval, as related to the ability to digitize a soil profile with a certain number of features per unit length, depends on the profiling technique itself. From a variety of profiling techniques, ...