Current Webinar and Workshop Series

NASH is pleased to present a series of webinars and workshops on new research, technologies, and best practices related to water science and hydrometric data. Whether you’re interested in water for personal or professional reasons, there is something here for you!

Take a look at the schedule below and sign-up early, before space runs out!

Interested in presenting at a NASH webinar or workshop?

The NASH is always looking for speakers who are interested in sharing their work or ideas on stream hydrometry. Do you have some interesting insights into water research, policy or international best practices that you’d like to share? Send us your ideas by filling out the form below and we’ll follow-up.

2022 Webinar and Workshop Schedule

Webinar and Workshop Title Date
Introduction to Hydrometric Monitoring and Flow Regatta, Canmore, AB June 4-5
Salt Dilution Hydrometric Monitoring Course, Vancouver, BC November 29

Salt Dilution Hydrometric Monitoring Course


Date: November 29, 2022

Time: 09:00 AM – 05:00 PM Pacific

Place: 2929 East 22nd Ave, Renfrew Creek, Vancouver, BC

Sign up here:  * Workshop currently fully registered –

Email NASH@CWRA.ORG for waitlist


Hydrology studies provide insights into the processes of rivers and lakes and aid water managers in decision making. Understanding the basics of hydrometrics is key to understanding the dynamic hydrological water cycle. This course is designed to help both the novice and qualified professionals understand measurement techniques for dilution discharge gauging and develop best practices. 

Learning Objectives:

The emphasis of this course is on Standard Operating Procedures (SOPs) used in hydrometric data collection. The course will focus on field techniques used in dilution discharge data collection. Course material will follow the ECCC, USGS, and BC RISC Hydrometric Standards commonly applied in data collection across all industries and sectors

Emphasis will be given to the following topics. 

  • Site selection for injection and probe placement  
  • Dilution gauging theory and equation break-down
  • Stream features 2𝜋 X the natural width of channel theory
  • Hydraulic control, C, a (pzf) and n values 
  • Point of zero flow and thalweg 
  • Pool/Glide/Riffle/Run 
  • Downstream factors such as culverts, side channels, confluences. 
  • Discharge uncertainty determination/data grading 
  • Cf-t determination and calibration
  • Collection methods (point velocity vs bulk velocity vs surface velocity vs dilution velocity) 
  • Natural channels, weirs and flumes, pipe and culvert flows 
  • 4 methods of discharge data collection (ADV, ADCP, Tracer, Velocimetry) 

The classroom portion of this course will focus on the edifying data review of the collected dilution discharge data including quality assurance and quality control of the collected data. We will review the collected dilution data from three locations highlighting incomplete mixing, complete mixing, and mid section method. Instruments to be showcased include YSI, QiQuac, and Sommer. Discussions on the uncertainty in the data collected and understanding the appropriate data grading of the datasets. Further data review of discharge data highlighting common errors in data collection and review. A summary of the field workshop with discussions on site selection options, field calibrations, and best practices.

This course will be conducted with a field component held on Tuesday, November 29th, 2022 from 09:00 to 12:00 followed up with a classroom portion from 12:00 to 17:00. Pizza lunch provided. Venue is located at 2929 East 22nd Ave; room 112. Morning meet-up at the covered park near the main entrance of the facility.

Participants are encouraged to bring their own dilution and calibrations kits to measure flows and compare their results to the pack. Rain or shine event! 


Derek Brzoza, AScT – President of NASH – Rain To River Consulting

Gabe Sentlinger, B.Sc., M.A.Sc., P.Eng – Fathom Scientific

Dan Moore, PhD, P.Geo – University of British Columbia

Jane Bachman, P.Geo  – NHC Associate Geoscientist

Christoph Sommer – Sommer Messtechnik

Andre Zimmermann, P.Geo – NHC Principal

August Ustare, A.Sc.T. – Swiftwater Consulting