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Listar por palabra clave "Estimation method"

Mostrando ítems 1-9 de 9

Assesment of a 4-input artificial neural network for ETo etimation through data set scanning

Martí Pérez, Pau Carles; Manzano Juarez, Juan; Royuela, Alvaro (Springer Verlag (Germany), 2011-05)

Evapotranspiration is a complex and non-linear phenomenon that depends on the interaction of several climatic parameters. As an alternative to traditional techniques, artificial neural networks (ANNs) are highly appropriate ...
Can the discharge of a hyperconcentrated flow be estimated from paleoflood evidence?

Bodoque, JM; Eguíbar Galán, Miguel Ángel; Diez-Herrero, A; Gutierrez-Perez, I; Ruiz-Villanueva, V (American Geophysical Union (AGU), 2011)

Many flood events involving water and sediments have been characterized using classic hydraulics principles, assuming the existence of critical flow and many other simplifications. In this paper, hyperconcentrated flow ...
Estimating flash flood discharge in an ungauged mountain catchment with 2D hydraulic models and dendrogeomorphic palaeostage indicators

Ballesteros Canovas, J. A.; Eguíbar Galán, Miguel Ángel; Bodoque del Pozo, José María; Díez-Herrero, A; Stoffel, M; Gutierrez-Pérez, I. (Wiley: 12 months, 2010)

There is still wide uncertainty about past flash-flood processes in mountain regions owing to the lack of systematic databases on former events. This paper presents a methodology to reconstruct peak discharge of flash ...
Estimation of shrub biomass by airborne LiDAR data in small forest stands

Estornell Cremades, Javier; Ruiz Fernández, Luis Ángel; Velázquez Martí, Borja; Fernández Sarriá, Alfonso (Elsevier, 2011-11-01)

The presence of shrub vegetation is very significant in Mediterranean ecosystems. However, the difficulty involved in shrub management and the lack of information about behavior of this vegetation means that these areas ...
Improving parameter estimates obtained from thermal response tests: Effect of ambient air temperature variations

Bandos, Tetyana; Montero Reguera, Álvaro Enrique; Fernández de Córdoba Castellá, Pedro José; Urchueguía Schölzel, Javier Fermín (Elsevier, 2011-06)

[EN] This paper presents a method of subtracting the effect of atmospheric conditions from thermal response test (TRT) estimates by using data on the ambient air temperature. The method assesses effective ground thermal ...
Methods for estimating the size of Google Scholar

Orduña Malea, Enrique; Ayllon, Juan M.; Martín-Martín, Alberto; Delgado-López-Cózar, Emilio (SpringerAkadémiai Kiadó, 2015-09)

The emergence of academic search engines (mainly Google Scholar and Microsoft Academic Search) that aspire to index the entirety of current academic knowledge has revived and increased interest in the size of the academic ...
Multivariate statistical monitoring of ETo: A new approach for estimation in nearby locations using geographical inputs

Martí Pérez, Pau Carles; Zarzo Castelló, Manuel (ELSEVIER SCIENCE BV, 2012)

[EN] The standard equation used to calculate reference evapotranspiration (ET o) requires many parameters that are not available or reliable in most cases. Alternative equations have been developed in the literature relying ...
Reference evapotranspiration estimation without local climatic data

Martí Pérez, Pau Carles; González Altozano, Pablo; Gasque Albalate, Maria (Springer Verlag (Germany), 2011-11)

[EN] The Penman-Monteith equation for reference evapotranspiration (ET o) estimation cannot be applied in many situations, because climatic records are totally or partially not available or reliable. In these cases, empirical ...
Selection of cloudless sky conditions by applying solar globalultraviolet irradiance measurements

Serrano, María-Antonia; Boscá Berga, José Vicente (Elsevier, 2013-10)

Taking advantage of UV (295 385 nm) irradiance measurements is one of the objectives of this paper. A newindex termed kt″ is established for this band. This newindexworks as a zenith angle independent clearness ...