Mid-Section Measurements - Guidance
The USGS has developed guidance to help ensure that data collected by USGS personnel are consistent and of high quality. The guidance consists of policy specified in technical memorandums (and referenced reports) and other best practices that are provided in published reports, papers, hydroacoustic updates, and information provided on this web site.
OSW Technical Memo 2004.04--Policy on the use of the FlowTracker for discharge measurements (pdf)
Other Best PracticesNEW! Guidelines for measuring discharge under ice using ADCPs: The Water Survey of Canada has prepared a helpful report, titled, "Standard Operating Procedures for under-ice discharge measurements using ADCPs". The report was prepared by Paul Campbell, Water Survey of Canada. Version 2, March 2015
Methods: When using Hydroacoustics to perform mid-section method discharge measurements most "best practices" used for mechanical meter discharge measurements still apply. These practices, including site selection, are well documented in Water Supply Paper 2175 Measurement and Computation of Streamflow.
Forms: Use of forms and checklists are a good way to help prevent oversights in preparation, collection and processing of data. Several forms are available for download below.
- USGS Discharge measurement form in Word and PDF formats. This form can be ordered from the USGS Hydroloigic Instrumentation Facility (HIF)
- Discharge measurement quality assurance and OSW review form.
- FlowTracker quick sheet on discharge measurements.