It’s official! The Vienna EGU 2018 Flow Regatta is going ahead. Here’s a link to the poster. Departure from AVC Center, Platz der Vereinten Nationen, close to underground station Kaisermühlen VIC at 8.30 AM. Transportation will be provided. The channel…
We are pleased to announce the long-awaited publication of our article: “Quantifying the Relation Between Electrical Conductivity and Salt Concentration for Dilution Gauging Via Dry Salt Injection”. From the press release: “This article provides new knowledge on the quantification…
It was a bright afternoon as I made my way across the prairies to Lethbridge. The sky loomed large and foreboding with the weight of the impending Q competition. The sharpest hydrometric minds in the country were converging to test…
Introduction This article will lead you through a salt dilution flow measurement using the QiQuac system. It is the same procedure using any other EC and temperature system, but the diagnostics and calculated Q will not be available in real-time. …
This article is a more detailed examination of the Sources of Uncertainty referenced in Quantifying and Controlling Error in Salt-Dilution Measurements. It is based on material presented most recently at the CWRA Conference in Lethbridge, Alberta, Canada, April 2017 (Lethbridge_Salt_Dilution_Uncertainty_V0.9). Injection…
This article is based on material presented at the AWRA Conference in Virginia, USA, Nov 2014 (AWRA_Salt_Dilution_CFT_V0.3) which was co-authored by Gabe Sentlinger (ARD), Mark Richardson (UBC), Andre Zimmerman (NHC), and John Fraser (ARD)†. Abstract The Calibration Factor – Temperature…
Introduction Salt-Dilution Instream Q (SDIQ) a method in which a known mass of salt is injected upstream of a conductivity probe and the conductivity signal measured. The technique has been used for decades. An introduction to the technique is described…
The following is adapted from “Introduction to Salt Dilution Gauging for Streamflow Measurement Part IV: The Mass Balance (or Dry Injection) Method” by Rob Hudson and John Fraser, with permission from the authors, published in Streamline Watershed Management Bulletin Vol.…
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