[tknight]

A quick update on this issue.

We have recently started hearing reports of users of RDI ADCPs having communication issues when using USB-Serial cables with FTDI driver versions greater than 2.12.36.4. They’ve seen the system tests end early and start live data readout, for example on a RioGrande the system test performs 17 tests instead of the full 23. There are no indications in WinRiverII that some of the tests are missing. Users have also reported data collection suddenly stopping and needing to power cycle the ADCP to regain communication.

[tknight]

Hi Nick,

Bathymetry for the mean cross-section is currently being exported as part of the XML file since QRev version 4.27. Starting with QRev 4.36 the velocity and temperature data based on MAP is now part of the XML. USGS uses Aquarius to store our field visit data which is limited to the data contained in the XML file. USGS is currently working on a Cross-Section database that will pull this data for every measurement in our database.

As Daniel mentioned, we are working on incorporating alpha and phi computations using SurfVelTool (https://code.usgs.gov/hydrologic-remote-sensing-branch/surface-velocity-tools/-/releases/1.0.0), now that it has been published, into QRev.

For more detailed cross-section creation (stitching multiple subsurveys together, adjusting multiple subsurveys to a common datum, comparing cross-sections, and computing channel characteristics) USGS is using AreaComp3. The application is currently in review and should be published later this year for official external use. AreaComp3 also has a tab for channel characteristics and documenting roughness by subsection so conveyance can be computed for the cross-section at specified stages.

[tknight]

USGS has experienced both issue 1 and 2 that James mentions above. We have also seen the issues listed below. We have communicated them to SonTek and they have addressed the issues.

• Handheld issues that are related to damage caused from the old handheld mount. SonTek redesigned the mount to increase the surface area better distributing the pressure reducing the damage (Image Attached).
• The eight screws on the probe (Image Attached) become loose over time and fall out. SonTek has increased their torque specs to prevent the issue in the future. A local fix would be to apply blue LockTight to the threads to help them stay in place.
• The Probe mounting stem falls off. SonTek fixed the issue by increase the weld strength to withstand 712 lbs of force from 265 lbs of force before breaking.

In the USGS we received many concerns from our field staff thinking the failure rate was high. When we pulled reports on HIF repairs we saw an increase in repairs over time, but it corresponded with an increase in the number of registered FlowTracker2 ADVs as FlowTracker1 ADVs were being replaced. When we compared the failure rate to FlowTracker1 ADVs in the past, it was similar.

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[tknight]

During the last couple meetings between the HaWG and ROWE, Jim has talked about the ADCPs they are selling. Supposably the software they are using can export the data in any of the data formats the other manufactures are using, but I have not seen the software nor the data output. ROWE is also producing their own trimarans. The price point on their ADCPs is competitive. I’ve attached some quotes from July 2022.

Here is their product page: https://rowetechinc.com/riverq/

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[tknight]

Hi Kevin,

Since the forum and webpage is now based in wordpress we could use a plugin to create a listserv. The free version has the option to update the listserv using csv files.

Mailing Group Listserv – WordPress plugin

 

 

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