ALP 16

5. Instumentation
5.1. References for instruments
Stream Gage (http:Hga. water .usgs.gov /edu /measureflow.html)
Onset Loggers and software (http: / /www.onsetcomp.com /water - level- loeeer)
Sontek Argonaut SW (http://www.sontek.com/argonautsw.ph
FlowTracker (http://www.sontek.com/flowtracker.php_)
StreamPro (http://www.rdinstruments.com/streami3ro.asox)
5.2. Instrumentation at CR213
Three instruments will be installed at CR213 culvert; a staff gage, a pressure transducer, and a SonTek
Argonaut SW. The instrumentation at CR213 will need to be installed prior to flow releases. The staff
gage and the pressure transducer will be installed on the wingwall on the upstream end of the culvert.
A second pressure transducer will need to be housed somewhere nearby to measure atmospheric
pressure. The Argonaut will be installed on the bed of the culvert near the upstream end. The Argonaut
will be removed at the end of the flow test (once the flow is too shallow for the instrument to measure
discharge). The staff gage and pressure transducer will be left for future use.
The staff gage will be monitored visually during the test release so that equilibrium conditions can be
determined. The pressure transducer will collect pressure (which can be converted to a stage) at a
specified time interval. We could collect very frequently (on the order of minutes) during the flow
release test, and less frequently after the test in order to monitor storm /snowmelt runoff. The Sontek
Argonaut will be able to measure depth, velocity, and discharge. The Argonaut measurements will be
compared to the discharge measurements made at CR213 using the Flowtracker or StreamPro (see
section 5.3) for validation.
5.3. Mobile Measurements
Discharge measurements can be made using the StreamPro or FlowTracker depending on field
conditions at various flows to provide immediate information regarding discharge, flow losses, and gains
in Basin Creek. Each team (see section 4.1.5) will have one StreamPro and one FlowTracker. The
StreamPro will be the more efficient method of measuring discharge In Upper Basin Creek at flow which
are contained within the channel (no overbank flows). The StreamPro may be able to measure
discharge near CR213 depending on flow depth, to help develop the stage discharge relationship at the
CR213 culvert. At lower flows, the FlowTracker will be used to measure discharge. The measurements
made at CR213 will be compared to the discharge measurements made using the SonTek Argonaut (see
section 5.2). Flow measurements made in Lower Basin Creek at locations other than at CR213 will most
likely need to be made using the Flow Tracker due to channel conditions.