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This app is intended to measure discharge using a slug injection of salt, it requires data recorded with a HoBo conductivity logger and the amount of salt diluted. Also, a correction coefficient of the response of conductivity against NaCl.
We often do these measurements in the field, so I adapted an existing code to a Shiny app for Rstudio, which allows an interactive and easy use to calculate discharge just touching few numbers on the screen. The interface looks like this:
The calculations are based on this publication "Moore, R. D. "Slug injection using salt in solution." Streamline Watershed Management Bulletin 8.2 (2005): 1-6." If you are interested about the method have a look at it!
Basically, just uploading the .csv file and touching few numbers to select the peak and the background conductivity, it calculates the Discharge and the time of the peak, which we use to estimate the water travel time in streams. Then you can save the plot with the name and site that you studied.
If you didn't do a calibration in the field, with stream water and its temperature, I have a small function to estimate the conversion factor of Conductivity to NaCl. To read more about it check this other git I have: https://github.com/gmrocher/Sal_Cond_Temp/wiki