Calibrating spatial interaction models without trip matrix data in Spatial modelling.
This paper examines an alternative calibration method which does not require the trip matrix data but only trip end data. The parameter estimation and trip prediction of the trip end calibration and conventional trip matrix calibration methods
Calibrating urban residential location models 5: a comparison of trip-end and trip-interchange calibration methods
Les deux méthodes donnent les mêmes valeurs paramétriques, mais les variances des valeurs estimées sont plus fortes pour la calibration par la fin du trajet que pour la calibration par les correspondances. Test sur des valeurs simulées.
Comparison of taxon calibrations, modern analogue techniques, and forest-stand simulation models for the quantitative reconstruction of past vegetation : a critique
Amérique du Nord ; Calibration taxonomique ; Géographie physique ; Modèle ; Méthodologie ; Palynologie ; Paléo-environnement ; Végétation
Calibration of Landsat data for sparsely vegetated semi-arid rangelands
Teste des méthodes de calibration multivariée à partir de mesures au sol et d'images Landsat, sur des régions semi-arides de buissons à Chénopodes (Sud australien). - (CB)
Reply to - comparison of taxon calibrations, modern analogue techniques, and forest-stand simulation models for the quantitative reconstruction of past vegetation : a critique by A. M. Solomon
Amérique du Nord ; Calibration taxonomique ; Géographie physique ; Modèle ; Méthodologie ; Palynologie ; Paléo-environnement ; Végétation
Les turbidimètres utilisés en association avec une calibration entre les concentrations en suspensions et la turbidité peuvent résoudre le problème de collecte des données dans les cours d'eau et le calcul de la charge totale.
Calibration of cellular automata by using neural networks for the simulation of complex urban systems
Calibration ; Geographical information system ; Neural network ; Probability ; Simulation ; Spatial dynamics ; Urban development ; Urban network ; Urban system
Calibration of piezoelectric bedload impact sensors in the Pitzbach mountain stream
Field monitoring of bedload transport and particle entrainment : calibration efforts and new developments. Special issue
The aim of this paper is to analyse the calibration of the piezoelectric bedload impact sensor (PBIS) system with the detailed sediment observations carried out in 1994 and 1995 in the Pitzbach mountain stream in Austria. They discuss these results
Problems in the calibration of an acoustic device for the observation of bedload transport
the necessary continuous or frequent record of variations at a single section. Acoustic techniques have the potential to overcome this deficiency, but their application has been very limited. Some of the problems of calibrating an acoustic device in the field
and in a laboratory flume are discussed and a possible circuit design described which might minimize calibration difficulties by automatically subtracting the noise generated by flow turbulence. (The AA).
Comparison of taxon calibrations, modern analogue techniques, and forest-stand simulation models for the quantitative reconstruction of past vegetation
Comparaison des trois méthodes quantitatives de reconstitution de la végétation comprenant les calibrations du pourcentage dominant, les coefficients de dissemblance entre les assemblages polliniques modernes et fossiles et la simulation des
successions forestières à long terme. La calibration taxonomique donne les meilleurs résultats car elle est basée sur les relations fondamentales de la production et de la dispersion polliniques.
Calibrating pollen data in climatic terms: improving the methods
Multiple linear regression of modern climate and pollen data allows the development of statistical calibration functions that transform percentages of certain pollen types into quantitative estimates of climatic variables, and these functions, when
applied to Holocene pollen data, yield estimates of climatic variables for past times. We outline the steps to be followed in calculating calibration functions. We used available computer programs for most of this study. In addition, we developed new
used data from the lower peninsula of Michigan to develop a calibration function for July mean temperature and then used Holocene pollen data from central lower Michigan to estimate past temperatures.