Interpolation by regularized spline with tension: I. Theory and implementation

Mitášová, Helena; Mitáš, Luboš

doi:10.1007/bf00893171

Cited by 346 publications

(84 citation statements)

References 15 publications

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“…The equations for computation of these parameters and their interpretation are fully described in Mitášová & Mitáš (1993) and Mitášová & Hofierka (1993). Slope angles are computed in degrees (0-90).…”

Section: Elevation Slope and Drainage Networkmentioning

confidence: 99%

Late Quaternary fault activity in the Western Carpathians: evidence from the Vikartovce Fault (Slovakia)

Vojtko¹,

Marko²,

Preusser³

et al. 2011

Geologica Carpathica

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Abstract:The Cenozoic structure of the Western Carpathians is strongly controlled by faults. The E-W striking Vikartovce fault is one of the most distinctive dislocations in the region, evident by its geological structure and terrain morphology. This feature has been assumed to be a Quaternary reactivated fault according to many attributes such as its perfect linearity, faceted slopes, the distribution of travertines along the fault, and also its apparent prominent influence on the drainage network. The neotectonic character of the fault is documented herein by morphotectonic studies, longitudinal and transverse valley profile analyses, terrace system analysis, and mountain front sinuosity. Late Pleistocene activity of the Vikartovce fault is now proven by luminescence dating of fault-cut and uplifted alluvial sediments, presently located on the crest of the tilted block. These sediments must slightly pre-date the age of river redirection. Considering the results of both luminescence dating and palynological analyses, the change of river course probably occurred during the final phase of the Riss Glaciation (135 ± 14 ka). The normal displacement along the fault during the Late Quaternary has been estimated to about 105-135 m, resulting in an average slip rate of at least 0.8-1.0 mm · yr -1 . The present results identify the Vikartovce fault as one of the youngest active faults in the Central Western Carpathians.

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Section: Elevation Slope and Drainage Networkmentioning

confidence: 99%

Late Quaternary fault activity in the Western Carpathians: evidence from the Vikartovce Fault (Slovakia)

Vojtko¹,

Marko²,

Preusser³

et al. 2011

Geologica Carpathica

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“…The RTK sampling locations were determined by iteratively increasing the spacing between intersecting nodes derived from existing (USGS 10-m national elevation data) contour lines, drainage network lines, and ridge lines until root-mean-square-error of the interpolated surface stabilized. A gridded elevation model (1-m horizontal spacing) was generated via regularized splines in tension (RST) interpolation, allowing for increased smoothness of the elevation surface where GPS observations were of lower (~10 cm) vertical precision (Mitasova and Mitas, 1993).…”

Section: Digital Terrain Modelingmentioning

confidence: 99%

Terrain-Shape Indices for Modeling Soil Moisture Dynamics

Beaudette

Dahlgren²,

O’Geen³

2013

Soil Science Society of America Journal

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“…A partir de las coordenadas geográficas de las estaciones meteorológicas, cada variable climática se ha interpolado a todo el territorio a una resolución de 10 km. Se ha elegido para la interpolación el método de mínima curvatura (Briggs, citado en Mitásová & Mitas, 1993). Este método presenta ventajas frente a otros utilizados en interpolaciones similares (Sánchez Palomares et al, 1999), puesto que ajusta a la variable una ecuación con la que se describe una superficie ondulada.…”

Section: Metodologíaunclassified

Predicción de la potencialidad de los bosques esclerófilos españoles mediante redes neuronales artificiales

Garzón¹,

Ruiz²,

Dios³

et al. 2003

GRAELLSIA

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RESUMENEncinares y alcornocales son dos de las formaciones esclerófilas más importantes de la Iberia mediterránea. Para conocer cual es su potencialidad en el territorio español se ha empleado un modelo generado mediante redes neuronales artificiales con un algoritmo de retropropagación de errores que conduce la información siempre hacia delante. Las variables bioclimáticas empleadas como predictores son: altitud, continentalidad, insolación, precipitación total, temperatura media anual, temperatura media de las mínimas del mes más frío y temperatura media de las máximas del mes más cálido, con una resolución de 10 km. Las redes neuronales se perfilan como una herramienta de gran poder predictivo. Se aprecian patrones de respuesta diferente para las formaciones estudiadas. Mientras que para la encina se simula un área potencial continua y extensa, para el alcornoque se obtiene un área fragmentada y restringida, que se ajusta bastante a su presencia actual. La principal discrepancia del modelo presentado con esquemas de vegetación potencial anteriores radica en la ausencia de encinares y alcornocales en zonas térmicas del Levante y sur peninsular. Palabras clave: vegetación potencial, redes neuronales artificiales, Quercus ilex, Quercus suber, encina, alcornoque ABSTRACT Predicting spanish sclerophyllous forests potentiality using artificial neural networksHolm oak and cork oak forests are between the most important sclerophyllous formations in the Mediterranean Iberia. In order to study their potentiality, an artificial neural network model, with a feedforward BP algorithm, has been applied. The elevation, continentality, insolation, annual rainfall, annual mean temperature, mean temperature of the coldest month and mean temperature of the warmest month are the used bioclimatic variables with a 10 km resolution. The neural networks seem a highly predictive powerful tool. Different patterns in the response of the studied forests have been shown. The holm oak presents a continuous and wide potential simulate range. Meanwhile the cork oak potential area is fragmented and restricted, in accordance with its actual distribution area. The lack of both forests in the eastern and southern warm zones of Iberian Peninsula is the main discrepancy with previous potential vegetation proposals.

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Interpolation by regularized spline with tension: I. Theory and implementation

Cited by 346 publications

References 15 publications

Late Quaternary fault activity in the Western Carpathians: evidence from the Vikartovce Fault (Slovakia)

Late Quaternary fault activity in the Western Carpathians: evidence from the Vikartovce Fault (Slovakia)

Terrain-Shape Indices for Modeling Soil Moisture Dynamics

Predicción de la potencialidad de los bosques esclerófilos españoles mediante redes neuronales artificiales

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