Filters: Tags: Heat tracing (X)
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This is an outdated entry for the USGS Model Catalog. The current record for this model can be viewed with other models at https://data.usgs.gov/modelcatalog. This record will be removed on September 1, 2022. "VFLUX is a program that calculates one-dimensional vertical fluid flow (seepage flux) through saturated porous media, using heat transport equations. It uses temperature time series data measured by multiple temperature sensors in a vertical profile in order to calculate flux at specific times and depths. VFLUX is written as a MATLAB toolbox, a set of functions that run in the MATLAB environment." See 'Abstract': https://www.hydroshare.org/resource/4df337867d314620bd87b27c6732e6fe/ Model Name (Name of the...
This data release provides a recursive-estimation framework to infer groundwater/surface-water exchange based on temperature time series collected at different vertical depths below the sediment/water interface. A heat-transport problem was formulated as a state-space model (SSM), in which the spatial derivatives in the convection/conduction equation are approximated using finite differences. The SSM is calibrated to estimate time-varying specific discharge using the Extended Kalman Filter (EKF) and Extended Rauch-Tung-Striebel Smoother (ERTSS) algorithms. This data release contains both algorithms, synthetic and field-experimental data, as well as VFLUX model results (Neversink_obs.csv, VFLUX_results.csv) used...
Categories: Data;
Tags: Extended Kalman Filter,
Heat tracing,
Hydrology,
Rauch-Tung-Striebel Smoothing,
Sediment Water Interface,
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