Reference number : GC-2017-Q4-01880, amendment number : , agreement type : G, recipient legal name : Weijs, Steven (The University of British Columbia), recipient country : CA, recipient province : nan, recipient city : British Columbia|Colombie-Britannique, recipient postal code : nan, program name english : Engage Grants for universities, program name french : Subventions d'engagement partenarial pour les universités, program purpose english : Accurate information about how much water flows through our rivers is essential for planning of hydropower_x000D_
production, drinking water supply, flood management, and ensuring a sound habitat for Salmonids and other_x000D_
fish. In steep mountain streams, many of the techniques that are used to determine the streamflow are not easy_x000D_
to perform. One of the techniques that does give a good estimate of the streamflow is salt dilution gauging. In_x000D_
this technique, a known small quantity of ordinary kitchen salt is added to the river. A few hundred meters_x000D_
downstream, it is then measured how salty the water is, by measuring how easily it conducts electricity. The_x000D_
less salty the water is, the more water was flowing through the stream diluting the salt. With some calculations_x000D_
the quantity of water flowing through the stream can be determined quite accurately._x000D_
How accurately the estimates are is currently a source of debate. Since important decisions depend on it, we_x000D_
want to know how accurate this method is in various circumstances (for example flood flows or low flows_x000D_
during a dry summer), and how the accuracy depends on the quantity of salt added._x000D_
In this research we will develop better methods to put a number on the accuracy of the measurements, so that_x000D_
data collected in many small streams can be confidently added to the database of information about our_x000D_
streams. This benefits many sectors and allows us to keep a sharp eye on one of our most precious natural_x000D_
resources., program purpose french : Accurate information about how much water flows through our rivers is essential for planning of hydropower_x000D_
production, drinking water supply, flood management, and ensuring a sound habitat for Salmonids and other_x000D_
fish. In steep mountain streams, many of the techniques that are used to determine the streamflow are not easy_x000D_
to perform. One of the techniques that does give a good estimate of the streamflow is salt dilution gauging. In_x000D_
this technique, a known small quantity of ordinary kitchen salt is added to the river. A few hundred meters_x000D_
downstream, it is then measured how salty the water is, by measuring how easily it conducts electricity. The_x000D_
less salty the water is, the more water was flowing through the stream diluting the salt. With some calculations_x000D_
the quantity of water flowing through the stream can be determined quite accurately._x000D_
How accurately the estimates are is currently a source of debate. Since important decisions depend on it, we_x000D_
want to know how accurate this method is in various circumstances (for example flood flows or low flows_x000D_
during a dry summer), and how the accuracy depends on the quantity of salt added._x000D_
In this research we will develop better methods to put a number on the accuracy of the measurements, so that_x000D_
data collected in many small streams can be confidently added to the database of information about our_x000D_
streams. This benefits many sectors and allows us to keep a sharp eye on one of our most precious natural_x000D_
resources., agreement title english : Uncertainty estimation for salt dilution gauging for streamflow measurements, agreement title french : Uncertainty estimation for salt dilution gauging for streamflow measurements, agreement number : EGP, agreement value : 25000.0, agreement start date : 2018-03-07, agreement end date : nan, description english : nan, description french : nan, expected results english : nan, expected results french : nan, additional information english : Grant or Award spanning more than one fiscal year (2017-2018 to 2018-2019)., additional information french : Subvention ou bourse octroyée s'appliquant à plus d'un exercice financier (2017-2018 à 2018-2019)., owner organization : nserc-crsng, owner organization title : Natural Sciences and Engineering Research Council of Canada | Conseil de recherches en sciences naturelles et en génie du Canada