Recent Submissions

  • Hydrological signatures based on event runoff coefficients in rural catchments of the Iberian Peninsula 

    Taguas, Encarnación V.; Nadal-Romero, Estela; Ayuso, José L.; Casalí Sarasíbar, Javier Upna; Cid, Patricio; Dafonte, Jorge; Canatário-Duarte, Antonio; Ferreira, Carla S.S.; Giménez Díaz, Rafael Upna; Giráldez, Juan V.; Gómez-Macpherson, Helena; Gómez, Jose A.; González-Hidalgo, J. Carlos; Lana Renault, Noemí; Lucía, Ana; Mateos, Luciano; Pérez, Rafael; Rodríguez-Blanco, M. Luz; Schnabel, Susanne; Serrano-Muela, M. Pilar; Taboada-Castro, M. Mercedes; Taboada-Castro, M. Teresa; Zabaleta, Ane (Wolters Kluwer, 2017)   Artículo / Artikulua  OpenAccess
    Hydrological signatures are indices that help to describe the behavior of catchments. These indices can also be used to transfer information from gauged to ungauged catchments. In this study, different approaches were ...
  • Assessment of soil factors controlling ephemeral gully erosion on agricultural fields 

    Ollobarren Del Barrio, Paul; Campo-Bescós, Miguel Upna; Giménez Díaz, Rafael Upna; Casalí Sarasíbar, Javier Upna (Wiley, 2017)   Artículo / Artikulua  OpenAccess
    The soil factor is crucial in controlling and properly modeling the initiation and development of ephemeral gullies (EGs). Usually, EG initiation has been related to various soil properties (i.e. sealing, critical shear ...
  • Assessing soil properties controlling interrill erosion: an empirical approach under Mediterranean conditions 

    Ollobarren del Barrio, Paul; Giménez Díaz, Rafael Upna; Campo-Bescós, Miguel Upna (Wiley, 2017)   Artículo / Artikulua  OpenAccess
    Soil erodibility is a complex phenomenon that comprises a number of different soil properties. However, most current (empirical) erodibility indices are based on only a few soil properties. A feasible soil characterization ...
  • Evaluation of 2D models for the prediction of surface depression storage using realistic reference values 

    Giménez Díaz, Rafael Upna; Mezkiritz Barberena, Irantzu; Campo-Bescós, Miguel Upna; Álvarez-Mozos, Jesús Upna; González-Audicana, María Upna; Martínez de Aguirre Escobar, Alejandro Upna; Casalí Sarasíbar, Javier Upna (Wiley, 2016)   Artículo / Artikulua  OpenAccess
    Depression storage (DS) is the maximum storage of precipitation and runoff in the soil surface at a given slope. The DS is determined by soil roughness that in agricultural soils is largely affected by tillage. The direct ...
  • Factors controlling sediment export in a small agricultural watershed in Navarre (Spain) 

    Giménez Díaz, Rafael Upna; Casalí Sarasíbar, Javier Upna; Grande Esteban, Ildefonso Upna; Díez Beregaña, Javier; Campo-Bescós, Miguel Upna; Álvarez-Mozos, Jesús Upna; Goñi Garatea, Mikel Upna (Elsevier, 2012)   Artículo / Artikulua  OpenAccess
    It is recognised that the hydrological and erosion processes in watersheds are very much conditioned by the (inter)action of a number of variables. This paper covers a 15-year period of studying those factors that have ...
  • Demonstrating correspondence between decision-support models and dynamics of real-world environmental systems 

    Huffaker, Ray; Muñoz Carpena, Rafael; Campo-Bescós, Miguel Upna; Southworth, Jane (Elsevier, 2016)   Artículo / Artikulua  OpenAccess
    There are increasing calls to audit decision-support models used for environmental policy to ensure that they correspond with the reality facing policy makers. Modelers can establish correspondence by providing empirical ...
  • Watering or buffering? Runoff and sediment pollution control from furrow irrigated fields in arid environments 

    Campo-Bescós, Miguel Ángel Upna; Muñoz Carpena, Rafael; Kiker, Gregory A.; Bodah, Brian W.; Ullman, Jeffrey L. (Elsevier, 2015)   Artículo / Artikulua  OpenAccess
    Surface irrigated agriculture in arid and semi-arid regions contributes to downstream environmental degradation. Changes in irrigation system operational scenarios (ISOS) can represent an economic alternative to reduce ...
  • Comparison between capacitive and microstructured optical fiber soil moisture sensors 

    López Aldaba, Aitor Upna; López Torres, Diego Upna; Campo-Bescós, Miguel 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 ...
  • Gully geometry: what are we measuring? 

    Casalí Sarasíbar, Javier Upna; Giménez Díaz, Rafael Upna; Campo-Bescós, Miguel Ángel Upna (European Geosciences UnionCopernicus Publications, 2015)   Artículo / Artikulua  OpenAccess
    Much of the research on (ephemeral) gully erosion comprises the determination of the geometry of these eroded channels, especially their width and depth. This is not a simple task due to uncertainty generated by the wide ...
  • Evaluación de la producción de sedimentos y calidad de las aguas en cuencas agrarias de Navarra 

    Giménez Díaz, Rafael Upna; Casalí Sarasíbar, Javier Upna; Díez Beregaña, Javier (Universidad de La Rioja, 2012)   Artículo / Artikulua  OpenAccess
    The Government of Navarre (Spain) established a series of experimental watersheds on different sites of its territory in order to assess the impact of the agricultural activities on the environment. Hydrological/meteorological ...
  • Coupling hysteresis analysis with sediment and hydrological connectivity in three agricultural catchments in Navarre, Spain 

    Keesstra, Saskia D.; Davis, Jason; Masselink, Rens Hein; Casalí Sarasíbar, Javier Upna; 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 ...
  • 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 ...
  • Evaluación multitemporal de métodos de corrección topográfica mediante el uso de imágenes sintéticas multiespectrales 

    Sola Torralba, Ion Upna; Álvarez Mozos, Jesús Upna; González Audicana, María Upna; Torres Escribano, José Luis Upna (Asociación Española de Teledetección, 2014)   Artículo / Artikulua  OpenAccess
    En este trabajo se presentan los resultados de la evaluación multitemporal de varios métodos de corrección topográfica (TOC), cuya bondad se determina de forma cuantitativa mediante el uso de imágenes sintéticas multiespectrales ...
  • Synthetic images for evaluating topographic correction algorithm 

    Sola Torralba, Ion Upna; González Audicana, María Upna; Álvarez Mozos, Jesús Upna; Torres Escribano, José Luis Upna (IEEE, 2013)   Artículo / Artikulua  OpenAccess
    In the last years, many topographic correction (TOC) methods have been proposed to correct the illumination differences between the areas observed by optical remote sensors. Although the available number of TOC methods is ...
  • Influence of surface roughness sample size for C-band SAR backscatter applications on agricultural soils 

    Martínez de Aguirre Escobar, Alejandro Upna; Álvarez Mozos, Jesús Upna; Lievens, Hans; Verhoest, Niko E. C.; Giménez Díaz, Rafael Upna (IEEE, 2017)   Artículo / Artikulua  OpenAccess
    Soil surface roughness determines the backscatter coefficient observed by radar sensors. The objective of this letter was to determine the surface roughness sample size required in synthetic aperture radar applications and ...
  • Influence of surface roughness measurement scale on radar backscattering in different agricultural soils 

    Martínez de Aguirre Escobar, Alejandro Upna; Álvarez Mozos, Jesús Upna; Lievens, Hans; Verhoest, Niko E. C. (IEEE, 2017)   Artículo / Artikulua
    Soil surface roughness strongly affects the scattering of microwaves on the soil surface and determines the backscattering coefficient (σ 0 ) observed by radar sensors. Previous studies have shown important scale issues ...
  • Assessing hillslope-channel connectivity in an agricultural catchment using rare-earth oxide tracers and random forests models 

    Masselink, Rens Hein; Temme, A. J. A. M.; Giménez Díaz, Rafael Upna; Casalí Sarasíbar, Javier Upna; Keesstra, Saskia 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 ...
  • 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 ...

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