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river-model from vicenç acuña implemented in javascript by lluís bosch

Home Page: http://ecoadvisor.icra.cat/river-model/run/

JavaScript 59.63% HTML 40.37%

river-model's Introduction

river-model (V. Acuña, [email protected]. Implementat per L. Bosch, [email protected])

Model d'un sol tram de riu. Es pot fer servir per crear un nou model on es puguin connectar entre sí per modelar un riu o una xarxa de rius.

Inputs:

símbol unitat descripció
wb m amplada a llera mitjana
wt m amplada a bankful mitjana
Db m distància entre llera i bankfull mitjana
S m/m pendent de la llera: obtingut amb resolució mínima de 30m de pixel, i estimant la pendent per un tram d'1 km
n ø coeficient de manning (n) s'obté de regressió entre Qi i HRi també es pot usar el mètode de Verzano et al per determinar n, o usar el valor 0.0358, que és la mitjana europea.
Li m longitud tram (m)
Di m fondària concreta (m)
Ti ºC temperatura

Outputs:

símbol unitat descripció
angle rad Angle entre la llera i el màxim del canal (bankful)
Dt m Fondària màxima
wi m Amplada de la llera inundada
Ai m2 Àrea transversal inundada
wpi m Perímetre humit inundat
HRi m Radi hidràulic
Qi m3/s Cabal en m3/s
Qi_MLd ML/d Cabal en ML/d
HRTi min Temps mig de residència de l'aigua
Vi m/min Velocitat mitjana
Si m2 Superfície inundada

Les concentracions de contaminants del tram de riu formen part d'un altre model. Un exemple que es pot fer servir és: https://github.com/icra/uct-icra-model/blob/master/src/state-variables.js

símbol unitat descripció
S_VFA mg/L Biodegradable Soluble Organics (BSO) (volatile fatty acids)
S_FBSO mg/L Biodegradable Soluble Organics (BSO) (fermentable organics)
X_BPO mg/L Biodegradable Particulate Organics (BPO)
X_UPO mg/L Unbiodegradable Particulate Organics (UPO)
S_USO mg/L Unbiodegradable Soluble Organics (USO)
X_iSS mg/L Inert Suspended Solids (sand)
S_NH4 mg/L Inorganic Free Saline Ammonia (NH4)
S_PO4 mg/L Inorganic OrthoPhosphate (PO4)
S_NOx mg/L Inorganic Nitrite and Nitrate (NO2 + NO3) (not part of TKN)
S_O2 mg/L Dissolved Oxygen
X_OHO mg/L Ordinary Heterotrophic Organisms (expressed as COD) influent OHO should always be 0 (model assumption)
X_PAO mg/L Polyphosphate Accumulating Organisms (expressed as COD) influent PAO should always be 0 (model assumption)

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