PART II: Using the Electroneutrality Principle to Verify the Accuracy of Water Quality Samples in AquaChem

January 29th, 2015|Categories: AquaChem, Water Quality Analysis|Tags: , |

As mentioned in my previous blog post, electroneutrality (E.N.) is a powerful tool to find errors in major ion analyses. Histograms are an efficient way of presenting and reviewing E.N. values. A histogram divides the active data into ranges and plots the number of points (i.e. samples) in each range. AquaChem enables you to easily create [...]

PART I: Using the Electroneutrality Principle to Verify the Accuracy of Water Quality Samples in AquaChem

October 1st, 2014|Categories: AquaChem, Water Quality Analysis|Tags: , |

The electroneutrality principle is a very useful principle and one of the foundations of water chemistry. This principle states that the sum of positive and negative charges within the water must balance to zero. This principle is also very useful when working with groundwater samples. Below are two good examples of how AquaChem water quality analysis [...]

PEST in VMOD Flex – A Preview of What’s to Come

October 16th, 2012|Categories: Groundwater Modeling, Visual MODFLOW Flex|Tags: , |

Historically, PEST is a topic that has intimidated beginner-novice modelers, due to the steep learning curve and lack of an intuitive GUI. PEST requires several steps to be completed in a specific sequence, in order to achieve a successful run and meaningful results. If you don’t mind editing text files, you might be able to get [...]

Video: The New Geochemistry Extension in Hydro GeoAnalyst 2012

September 17th, 2012|Categories: AquaChem, Hydro GeoAnalyst, Water Quality Analysis|Tags: , , |

The new geochemistry extension in Hydro GeoAnalyst enables users to easily expand their water quality data analyses with over 25 geochemical plots, water standard exceedance reports, trend and statistical analyses, PHREEQC geochemical modeling and much more. The geochemistry extension is powered by AquaChem which integrates seamlessly with Hydro GeoAnalyst and its SQL Server environmental database. The following video [...]

How to Create Geologic Cross Sections in Hydro GeoAnalyst

September 17th, 2012|Categories: Hydro GeoAnalyst|Tags: , |

Many geologic and hydrogeologic site investigations require a detailed analysis of the available lithological data, and the drafting and interpretation of cross sections. Hydro GeoAnalyst's built-in Cross Section Editor can be used to perform these tasks. The Cross Section Editor provides a set of easy-to-use tools that allow you to easily interpret subsurface data including geological [...]

How to Create Water Level Time Series Plots in AquaChem

August 13th, 2012|Categories: AquaChem, Water Quality Analysis|Tags: , |

Using AquaChem you can easily show the evolution of chemical or physical parameters over time for a given sampling point. The time series plot is a standard technique for interpreting hydrochemical and hydrogeological processes and in particular temporal trends in natural waters. The following steps show you how to create water level time series plots in [...]

10 Model Design Tasks Made Easier with Visual MODFLOW Flex

June 8th, 2012|Categories: Groundwater Modeling, Visual MODFLOW Flex|Tags: , |

The conceptual approach to groundwater modeling offers many advantages over traditional numerical modeling. For example, when designing your model you have complete freedom to make numerous changes and modifications without being constrained by grid cells. This results in significant savings in both time and effort. Here are 10 common groundwater model design tasks made easier with [...]

Exchanging Data and Models Between Visual MODFLOW Flex and VMOD Classic

June 1st, 2012|Categories: Groundwater Modeling, Visual MODFLOW Flex|Tags: , , |

As more of you adopt Visual MODFLOW Flex for your groundwater modeling projects, we’re receiving questions about how to exchange data and model files between Visual MODFLOW Flex and VMOD Classic interfaces. There are some features that are still being developed for Visual MODFLOW Flex, such as PEST, Transport, and MODFLOW-SURFACT. In order to use these [...]

An Easier Way to Share Environmental Data and Collaborate Online

May 28th, 2012|Categories: Environmental Data Management, Hydro GeoAnalyst|Tags: , , |

Sharing your environmental data with colleagues, whether they're down the hall or across the globe, can be a time consuming and frustrating endeavor. Large file sizes, incompatible formatting, or inability to access the appropriate software can make collaborating on projects a nightmare. Hydro GeoAnalyst now offers online sharing, allowing you to share your data quickly, easily [...]