This example calculates the distribution of aqueous species in seawater and the saturation state of seawater relative to a set of minerals. To demonstrate how to expand the model to new elements, uranium is added to the aqueous model defined by phreeqc.dat.
Read MorePHREEQC version 3 is a computer program written in the C and C++ programming languages that is designed to perform a wide variety of aqueous geochemical calculations. PHREEQC implements several types of aqueous models: two ion-association aqueous models (the Lawrence Livermore National Laboratory model and WATEQ4F), a Pitzer specific-ion-interaction aqueous model, and the SIT (Specific ion Interaction Theory) aqueous model. Using any of these aqueous models, PHREEQC has capabilities for (1) speciation and saturation-index calculations; (2) batch-reaction and one-dimensional (1D) transport calculations with reversible and irreversible reactions.
Read MoreIf we want to talk about concentrations, solutes and contaminant transport in groundwater, we need to mention the Source/Sink concepts and natural concentrations in groundwater. Sources represent solute mass entering the system, which could be representing spills or natural lixiviation processes. Sinks are the zones where water with solute concentrations leave the system.
Read MoreTutorial about how to apply styles in QGIS.
Read MoreSimple tutorial about cross seccions with the Profile Tool plugin on QGIS.
Read MoreQuick tutorial to download Land Cover imagery from the Nasa Echo Reverb repository
Read MoreQuick tutorial for the simulation of a contaminant plume from a waste dump
Read MoreQuick tutorial to plot concentrations, generate contours and make ilustrations.
Read MoreQuick tutorial for the numerical modeling of groundwater flow regime for an andean basin.
Read MoreQuick tutorial to download Time Acumulated Precipitation from TRMM and IMERG
Read MoreTutorial to determine Elevation and Precipitation of Subbasins on QGIS
Read MoreTutorial to estimate Rainfall for a given Return Period with Python
Read MoreThis tutorial cover the following topics:
Open tables in SAGA GIS
Convert to points
Assign SRC / Spatial Reference: 32718
Ordinary Krigging of HCO3-
Quick tutorial for the configuration of a watershed on HEC-ResSim.
Read MoreAnalysis of Precipitation Trends with Jupyter Python
Read MoreMultispectral Analysis of Satellite Imagery with Python
Read MoreTutorial to create a MODFLOW Grid by shapefile and import elevation
Read MoreInteresting modeling exercise of groundwater well interference with MODFLOW. This tutorial is made from the ground up with the input files and a discussion over the results. Three pumping were considered with rates form 5 to 10 l/s. Simulation period was set up to 15 years and interference was analysed over 1, 3, 5,10 and 15 years.
Read MoreInteresting tutorial for the transformation of a 3D numerical groundwater flow model done with MODFLOW into a lightweight 2D model. The case of study is a groundwater flow model of tailing seepage done with horizontal discretization from 50 to 12.5m and 21 layers. The tutorial cover spatial object and dataset treatment together with some discussion on the model construction and discretization.
Read MoreContinue exploitation of groundwater in arid climates generates extreme scenarios of groundwater flow and storage. As pumping rate increase, inflows from recharge, storage and seawater increase. With time, seawater is introduced into the aquifer, reaching its wells and affecting water quality.
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