Starting Edge Data Collection in SonTek RSSL

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Detailed Description

In this video we will outline the process of entering the starting edge information in the SonTek RSSL software. Note: Use of trade names is for descriptive purposes only, and does not imply endorsement by the USGS. For additional videos in this series, visit the following link: https://www2.usgs.gov/humancapital/ecd/hydrotube/hydrotube-ADCP.html
 

Details

Image Dimensions: 480 x 360

Date Taken:

Length: 00:01:46

Location Taken: Augusta, ME, US

Transcript

Hi my name is Nick Stasulis and I work with the Maine Office of the New England Water Science Center. In this video we will outline the process of entering the starting edge information in the SonTek RSSL software.

Once the pre-measurement tests are complete, select the start a measurement icon in the lower left corner of the screen, or press F5. In the start edge dialog that appears, enter the starting bank. Then, enter the distance from the initial point, measured from a tagline, bridge marking, or cableway marking. The distance between stations can be also be entered if the distance is known and fixed, but always ensure you are confirming the distance from initial point with the tagline or other marking.

If there is a vertical or near vertical bank at the edge, you can enter a user input water depth. For a triangular bank, no entry is needed here. If a bank is vertical or near-vertical, also be sure to enter the velocity correction factor, which is based on the velocity from the next station you will collect data. Estimate the velocity at the bank and the velocity at your next intended station and enter a correction factor to account for the difference. For example, a correction of 0.5 would indicate the velocity at the bank is half of the velocity at the next station you’ll collect. Gage height information can also be entered.

While there is an option to edit extrapolation methods, it’s recommended you wait until data collection is complete before review, a process covered in a separate video in this series.

Once you are satisfied with the entries on this page, simply click Ok or hit enter to advance to the next station.