Usgs adcp training. Compass Transducer Alignment 12. Training at the HIF supports the development of a USGS workforce ready to take on new water challenges. The computation of discharge is independent of the manufacturer of the ADCP because QRev applies consistent algorithms independent of the data source. An ADCP is an electronic instrument used to measure Description This podcast was developed by the USGS Hydroacoustics Workgroup to provide an overview of the communications options available to us when using ADCPs. USGS In USGS training classes and in Oberg and others (2005), an exception to conducting a moving-bed test with every measurement was allowed if sufficient documentation was provided in the field folder to justify not conducting a moving-bed test. About the Instructor for this Course 7. Measurement of Streamflow using ADCP's ONLINE PREREQUISITE Online material must be successfully completed prior to class (Approx. Aquifer-Test Analysis Discrete Water Quality Data Review Workflow EMMA QMS Training EW Videos GNSS Training Videos Remote Sensing of Rivers Storm-Tide Monitoring Using Portable Spectrometers Featured Courses on DOI Talent The default setting for SxS Pro midsection measurements is ADCP, which assumes the ADCP isn’t moving and references the velocity to the ADCP itself. ADCP Moving Boat T&M 9. The USGS philosophy regarding data quality is discussed to provide the user with an understating of the motivation behind the system. All ADCP data, including compass calibration and ADCP test results associated with an individual measurement, should be stored together in a unique folder. 1. Float and Boom Deployment 7. Using Phase Change Instead of Frequency 14. Then, we will briefly discuss the communication options specific to SonTek and TRDI 1. Since we are or they will display considerations for data collection based on the conditions you’ve entered. VMT allows processing, visualization, and analysis of a range of ADCP datasets and includes utilities to export ADCP data to files compatible with ArcGIS®, Tecplot®, and Google Earth®. Dec 14, 2016 · The use of acoustic Doppler current profilers (ADCPs) from a moving boat is now a commonly used method for measuring streamflow. usgs. Videos are grouped by specific topic and are generally in an order that they should be viewed. Example of GPS Lagging Bottom Track –Time Series Plot 13. Common GPS Hardware 6. The techniques and standards for making discharge measurements at streamflow gaging stations are described in this publication. Office Preparation 7. Waves in a Puddle 8. Overview This section introduces the USGS fixed-deployment ADCP data processing system and provides information about the history of the system’s development. Lesson 6: Using GPS with ADCPs 2. Geological Survey (USGS) for discharge (streamflow) measurements using acoustic Doppler current profilers (ADCPs). Jun 1, 2017 · In the mid-1990s, a new technology emerged in the field of inland streamflow monitoring. The number of streamflow measurements made by the USGS using the RiverRay ADCP is also increasing because of similar reasons. Therefore, as the boat moves faster, the relative water velocity measured by the ADCP increases. Slide 1 2. Geological Survey (USGS) streamgaging program. 8 hours) MONDAY Start of Class at 1PM Class Introductions and Review of Course Review of TEL Prerequisite Moving Bed Basics - GPS, Loop, and SMBA SonTek M9/S5 Discharge Measurements in RS Live TUESDAY Connecting and Configuring Measurements in WinRiver Measurements Jun 11, 2020 · Hydroacoustic Webinars The WMA hosts webinars on various hydroacoustics topics on a periodic basis. VTG GPS Reference 10. USGS personnel collecting and reviewing ADCP data for streamflow measurements are required to complete the USGS training class, Measurement of Streamflow using ADCPs (U. Laboratory validations made in a large towing basin show that the mean differences between tow cart velocity and ADCP bottom-track and water-track Office of Surface Water (OSW)Surface Water Technical Procedures The purpose of this manual is to provide a comprehensive description of state-of-the-art standardized stream-gaging procedures, within the scope described below. General information about the following topics will also be discussed: hardware and The water velocity measured by an ADCP deployed on a moving boat is the velocity of the water passing by the ADCP, which we will refer to as the relative water velocity (it is relative to the instrument). Site features may include hydraulic characteristics such as water velocity and access considerations such as the presence of boat ramps, bridges, or cableways. Lesson Navigation 3. This relative water velocity includes the velocity of both the boat and water. Instructional podcast and recorded webinars are designed to offer convenient, on-demand instruction and assistance on a variety of hydroacoustic instrumentation topics Moving-Boat Deployments Every measurement site has unique features that may determine the best type of ADCP deployment platform. QRev was developed by the USGS to provide for more consistent review of ADCP discharge measurements and to gain efficiency. If bottom is selected the program will remove the bottom track velocity from instrument movement, which can cause large errors in moving bed conditions. Photography March 26, 2024 Each ADCP equipped with a compass used by USGS offices for measurements of streamflow must be tested: (1) when the ADCP is first acquired; (2) after factory repair and prior to any data collection; (3) after firmware or hardware upgrades and prior to any data collection; and (4) every three years. The river-bottom tracking capability of the ADCP acoustic beams or a Global Positioning System Section 2. Comparing GGA and VTG 11. OSW Hydroacoustics Webpage 12. 2). tic Profiler Data 2002. Office Preparation 8. Midsection ADCP Measurements for Check Measurements This video highlights the advantages of using an ADCP with the midsection method as a check measurement. As it is possible that the topic may change in response to scheduling conflicts or other problems, it is important to check this web page for any updates. Phase The USGS provides training and tutorials on various USGS products and services, how to use our data, and much more. S. StreamPro 4. Lesson 5 ADCP Discharge Measurements: An Overview of Procedures 2. Although this report still is mostly applicable, it currently is in revision. Now generally used, this designation originates from a TRDI trademark while ADP Dec 6, 2023 · We are thrilled to announce the upcoming release of our comprehensive "Back to Basic” SonTek ADCP river discharge training video. Office Preparation 9. The videos within this site are meant to provide simple guidance in performing routine job-related tasks. Description This podcast was developed by the USGS Hydroacoustics Workgroup to summarize the questions we most often receive from the field when getting started using ADCPs for mid-section measurements in open water. Misc. Geological Survey recognizes the need to provide sediment acoustic training and to develop standardized techniques and practices. Students will learn how to plan and execute surveys through several days of classroom and field work. Sep 9, 2025 · Check back every week for new classes!Last updated September 9, 2025 Measurement of Streamflow using ADCP's ONLINE PREREQUISITE Online material must be successfully completed prior to class (Approx. Acknowledgments 8. It was originally developed for oceanographic work, but was adapted for inland streamflow measurements. For example, the first video is often an introduction or possibly instructions on how to install a specific software. What is Doppler Shift? 7. Note: Use of The technology and methods for making ADCP-based discharge measurements are different from the technology and methods used to make traditional discharge measurements with mechanical meters. Measurements made and processed prior to March 31, 2017 are not required to be reprocessed using QRev. Scatterer Velocity Assumption 10. If successful: the dot next to the ADCP box will turn green, the ADCP type will be set automatically, and the ADCP serial number will be populated. Mar 5, 2014 · Contents Foreword Significant Updates and Changes Abstract Introduction Preparation and Equipment Field Procedures Office Procedures Selected References Glossary Appendix A – Basic ADCP Operational Concepts Appendix B – Collecting Data in Moving-Bed Conditions Appendix C – Description of Water-Tracking Modes Appendix D – Beam-Alignment Test Appendix E – Forms and Quick-Reference WEDNESDAY Processing TRDI ADCP Measurements in WinRiver Processing instructor supplied Measurements LUNCH Field Data Collection - TRDI and SonTek with GPS THURSDAY Rating Measurement Quality User Presentation of data/problems Additional Processing of Instructor Supplied Data LUNCH Field Data Collection - TRDI and SonTek with GPS FRIDAY Review Measurement of Streamflow with ADCP's Refresher Day 1 Overview and Introductions ADCP Measurements in RiverSurveyorLive ADCP Measurements in WinRiver II LUNCH GPS and GPS Heading Qrev - Importing files, Interface, Saving Evaluating Premeasurement Tasks in Qrev Track Reference (Bottom Track and GPS) Depth Filters in Qrev Day 2 Water Track in Qrev Extrapolation and Edges Measurement Quality Jan 15, 2011 · Class Lessons To start each lesson click on the lesson title below. Errors in heading will cause errors in discharge Correct magnetic variation for site True Magnetic North North Relatively free of θ Mag Orientation θ of Instrument magnetic interference Ι nst Boat Vector Properly calibrated θ From DGPS The Velocity Mapping Toolbox (VMT) is a Matlab®-based software for processing and visualizing ADCP data collected in riv-ers or other bodies of water. During this podcast, guidance is provided on selecting parameters that are Mar 20, 2025 · To manage our water resources effectively, we need to understand how much water is available and its usefulness. USGS GPS Hardware Requirements 5. The Basic Doppler Equation 9. Dec 7, 2016 · The advent of the acoustic Doppler current profiler (ADCP) made possible the development of a discharge-measurement system capable of more accurately measuring unsteady or tidally affected flow. ASCE2 Abstract: The U. In addition, QRev automates filtering and qu The USGS Hydrologic Instrumentation Facility is a hub for coordination, innovation, and training in water science and technology. The term ADCP generally is used to describe instruments produced by a number of manufacturers with the common purpose of measuring 3-dimensional current Jun 2, 2020 · The software program, QRev, written in Python, computes the discharge from moving-boat ADCP measurements using data collected with any of the Teledyne RD Instrument (TRDI) or SonTek bottom tracking ADCPs. Geological Survey (USGS) to compute the measured discharge and compare the measured discharge to the rated discharge prior QRev - Processing Moving-boat ADCP Discharge Measurements David S Mueller Office of Surface Water February 27, 2017 Python and Matlab codes for processing ADCP discharge measurements Oct 13, 2022 · These data are the survey results from a five-mile section of the Platte River at, and upstream of the Nebraska Army National Guard Camp Ashland Training Site including the side channel chutes on the east bank. ADCP Measurement training at Malheur National Wildlife Refuge. Example Data Structure 6. Sites with High Multi-Path Potential 9. Lesson Objectives 3. Formal training options are scheduled annually and include basic, intermediate and topic-specific classes such as index-velocity and mid-section measurement methods. This guidance often takes the form of advice regarding technical issues that need to be addressed, work priorities 1. StreamPro Configuration Limitation 6. Manufacturer Websites Measuring Discharge with Acoustic Doppler Current Profilers from a Moving Boat contains the most current information and guidance regarding acoustic Doppler current profilers (ADCPs) used by the USGS at the time of publication. Status of Testing of Hydroacoustic Instruments – February 2013 TRDI RiverRay, SonTek M9/S5, and the Ott ADC What’s New in Hydroacoustics The latest in equipment, policies, procedures, and common issues Several forms are available for download below. What is an ADCP? 5. 01 – Configuration of Acoustic Profilers (RD Instruments) for Measurement of Streamflow 2002. The purpose of this memorandum is to make the use of QRev software (Mueller 2016) mandatory beginning March 31, 2017, for processing streamflow measurements made using an acoustic Doppler current profiler (ADCP) from a moving-boat and stored in the National Water Information System. The report is an update of a 1995 quality-assurance plan for ADCPs and addresses the many changes in ADCP technology and procedures since 1995. Importance of Speed of Sound (C) 12. Background: It has been a long-standing practice for hydrographers in the U. An ADCP is an electronic instrument used to measure The Hydroacoustic Work Group (HaWG) provides guidance to the USGS Water Resources Mission Area regarding the support for and development of hydroacoustics instrumentation for use in streamflow, velocity, depth, and other hydraulic and hydrologic measurements. This instrument is transforming the U. The water velocity measured by a hydroacoustic current meter in a portion of a river can be used as a surrogate or "index" for the mean-channel velocity. shtml. The vertical axis rotating-element current meter, principally the Price current meter, has been traditionally used for most measurements of discharge; however, advancements in acoustic technology have led to important developments in the use of acoustic Doppler Contents Acknowledgments Abstract Introduction Introduction to the Index Velocity Method Site and Instrument Selection ADVM Installation and Configuration Routine Field Techniques Routine Office Techniques Rating Development and Analysis Discharge Measurement Calibration Data Index Velocity Rating Computation and Analysis of Discharge Summary and Conclusions References Glossary Appendix 1 Kevin Oberg1 and David S. Compass Option for StreamPro 10. Geological Survey and other international agencies have collaborated to conduct laboratory and field validations of acoustic Doppler current profiler ADCP measurements of streamflow. StreamPro Operating Modes 5. Lost ensembles are a communications issue that may be resolved with changes in data radios, serial ports, or laptop computers. Errors in the Scatterer Velocity Assumption 11. Compass Option 11. Disponible en https://hydroacoustics. The HIF supports water monitoring efforts nationwide by developing, testing, and providing hydrologic equipment and instrumentation to the USGS and partners. Jul 20, 2021 · The Velocity Mapping Toolbox (VMT) is a Matlab-based software for processing and visualizing ADCP data collected along transects in rivers or other bodies of water. Photography January 30, 2018 ADCP streamflow measurement, Wind River near Dubois Photography March 27, 2024 ADCP Measurement training at Malheur National Wildlife Refuge. In many cases, an ADCP discharge Mar 27, 2024 · USGS Oregon Water Science Center instructors prep Malheur National Wildlife Refuge & High Desert Partnership staff to collect streamflow measurements with an acoustic instrument (ADCP). On this field day, students from all over the USGS used their newfound knowledge to collect ADCP data in Windham, Maine. Water May 6, 2014 · This video shows how to document a moving boat ADCP discharge measurement. The videos are located on the USGS YouTube Channel, and are embedded below, but can also be viewed directly in YouTube. Available options include formal (in-person or virtual) training classes, short courses, workshops and web-based seminars. The OSW will send The USGS offers a variety of in-person or virtual training classes, short courses, workshops and web-based seminars in hydroacoustics. Policies Mar 2, 2019 · The U. Purpose and Composition of Work Group The HAWG is sponsored by the OSW to assist in providing operational guidance to users of acoustic Doppler current profilers (ADCP’s) and other acoustics devices used for hydrologic measurements. Field Notes in SVMobile for a Target Audience: USGS Employees Summary and Objectives: The goal of this course is to provide students with the basic knowledge needed to attend the SW1321 Streamflow Measurements Using ADCPs training course, including a familiarity of: ADCP computation methods ADCP deployment methods Manufacturer software Field procedures when using ADCPs Course Contact: SW1321 Instructional Team GS-W_SW1321 Training Opportunities DOI Talent Login DOI's next generation of online learning. OSW Hydroacoustics Forum 13. Invalid bottom track is the result of the ADCP being unable to measure a boat speed. GPS Overview 4. Geological Survey, 2002b). - As you know, the measurement Jan 31, 2016 · In this video, we will highlight the advantages of using an ADCP with the midsection method as a check measurement. Course Goals and Objectives 5. Another vendor (Sontek) has developed a bottom-tracking ADCP that can be used for discharge measurements, but the system is not yet widely used by the USGS This week-long class is designed to provide ADCP users familiar with discharge measurements with the skills, resources, and techniques necessary for velocity mapping and bathymetry surveys with an ADCP. Prerequisite Material for the USGS Training Course "Streamflow Measurements Using ADCPs": Curso introductorio para el uso de ADCP. We will cover the overall options for serial and Bluetooth communications, the antenna options when using Bluetooth, as well as radio modem options. The ADCP is then guided across the surface of the river to obtain measurements of velocity and depth across the channel. The South Atlantic Water Science Center is making great use of the acoustic Doppler current profiler (ADCP). Electronic Notes - SVMobile 10. USGS Hydroacoustics Work Group The Hydroacoustic Work Group (HaWG) provides guidance to the Water Mission Area (WMA) regarding the support for and development of hydroacoustics instrumentation for use in streamflow, velocity, depth, and other hydraulic and hydrologic measurements. Example of GPS Lagging Bottom Track This podcast was developed by the USGS Hydroacoustics Workgroup to summarize the questions we most often receive from the field when getting started using ADCPs for mid-section measurements in open water. The development of new and improved ADCPs is ongoing, as are the research and practical field experience with existing and new ADCPs, which likely will lead to changes ADVANCED ADCP APPLICATIONS MONDAY Welcome Facility Orientation WinRiver II -Open Project and Project Control WinRiver II - Menus, Tables, Graphics, etc. The information provided will help potential users with decision support when selecting between four sediment-acoustics methods. Non-USGS personnel who work for other Federal, State, and local agencies whose job duties include hydrologic monitoring may attend HIF training classes if space is available. Discharge Computations with WinRiver II Exercise LUNCH A Procedure for Reviewing and Finalizing Data Practice Reviewing Data Set Identifying Data Problems in WinRiver II Data Review Exercise Policy and technical guidance described in this memo is based on knowledge and experience with ADCP’s obtained by the USGS during the past 8 years, OSW training materials, and the report Quality Assurance Plan for Discharge Measurements Using Broadband Acoustic Doppler Current Profilers (Lipscomb, 1995). Course Outline 6. Three common types of ADCP deployment platforms are manned boats, tethered boats, and remote-control boats Feb 29, 2016 · Many ADCP measurement problems can be solved by moving to a better measurement section. Policies The interagency Sediment Acoustic Leadership Team (SALT) promotes and develops technical guidance and training for using acoustic instruments to measure aquatic sediment. The guidelines provided in USGS Water- Supply Paper 2175 (Rantz and others, 1982, p. I’d like you to remember that the use of trade names does not imply endorsement by the USGS. SVMobile To make a discharge measurement, the ADCP is mounted onto a boat or into a small watercraft (diagram above) with its acoustic beams directed into the water from the water surface. Mueller, M. ADCPs 4. Discharge Measurement Procedures 4. GGA GPS Reference 7. The USGS provides training and tutorials on various USGS products and services, how to use our data, and much more. StreamPro Software 8. The software tool, extrap, combines normalized velocity profiles from the entire cross section and multiple transects to determine a mean profile ADCP Midsection Video IndexGeneral Videos Review of Midsection Method/Considerations with an ADCP This video reviews the midsection method and some considerations when using this method with an ADCP. Training Requirements Because of the complex nature of the ADCP and associated software, at least one person in the field crew is required to have formal training in the operation and maintenance of ADCP's. QRev supports both SonTek and Teledyne RD Instruments ADCPs. Introduction - Using ADCPs in Moving Bed Conditions Course Introduction Lesson 1 - Effect of Moving Bed on Discharge Measurements By the end of this lesson, the learner will be able to: What ADCP bottom tracking is and why it is necessary Define the effect a moving bed has on measurement of velocity Recognize the appearance of Sep 12, 2019 · This video was taken during the SW1321 training course, Streamflow Measurements Using ADCPs. SVMAQ - S ite V isit M obile AQ uarius SVMAQ is the USGS utility for recording surface water site visit data and outputting them in a format for loading into the USGS NWIS database. Rio Grande ADCP 15. Until recently, RDI was the only manufacturer of ADCP systems that could be utilized for discharge measurements (bottom-track algorithms). VMT allows rapid processing, visualization, and analysis of a range of ADCP datasets and includes utilities to export ADCP data to files compatible with ArcGIS, Tecplot, and Google Earth. We'll tackle all those burning questions you've had about SonTek Nevertheless, use of the M9 ADCP is rapidly increasing because of its compact size, turnkey operation, ease of use, and capacity to measure in a wide range of hydraulic conditions. Multi-Path Errors 8. 02 – Policy and Technical Guidance on Discharge Measurements using Acoustic Doppler Current Profilers The development of new and improved ADCPs is ongoing, as are the research and practical field experience with existing and new ADCPs, which likely will lead to changes in the The USGS offers a variety of training opportunities in hydroacoustics. This training will empower them to collect important data for decision-making for years to come. Photography November 23, 2021 Taking Acoustic Doppler Current Profiler (ADCP) measurements Photography USGS Hydrologic Instrumentation Facility (HIF) training courses are specifically designed to benefit USGS hydrologic technicians and hydrologists who operate streamgages and other automated hydrologic monitoring stations. Description This podcast was developed by the USGS Hydroacoustics Workgroup to summarize the questions we most often receive from the field as ADCPs are used more and more under ice with the midsection method. Questions During the Course 10. Photo by Brandon McMullen. The USGS monitors the nation’s water resources through various national observing networks that use a range of technologies and methods to assess real-time water conditions and predict future changes in water availability for human and ecological uses. Note: Use of trade names is for descriptive purposes only, and does not imply endorsement by the USGS. Purpose: This memorandum clarifies policies on processing acoustic Doppler current profiler (ADCP) discharge measurements at the field site and techniques for performing ADCP check measurements. Articulate - The leader in rapid e-learning and communications. The technology and methods for making ADCP-based discharge measurements are different from the technology and methods used to make traditional discharge measurements with mechanical meters. Although the ADCP is a valuable tool for measuring streamflow, it is only accurate when used with appropriate techniques. Lesson 1: How ADCPs Work and Their Limitations 2. On Demand This page is an organized index of select USGS OSW Hydroacoustic podcasts, recorded webinars, and online training. SVMAQ can be used to electronically record notes during an ADCP discharge measurement. Power and Bluetooth LEDs 9. This video was taken during the SW1321 training course, Streamflow Measurements Using ADCPs. 8 hours) MONDAY Start of Class at 1PM Class Introductions and Review of Course Review of TEL Prerequisite Moving Bed Basics - GPS, Loop, and SMBA SonTek M9/S5 Discharge Measurements in RS Live TUESDAY Connecting and Configuring Measurements in WinRiver Measurements Virtual and Online Learning OpportunitiesVirtual Classes Examples of instructional distance learning products that have resulted from the Request for Proposals (RFP) program. Links to the same podcasts or webinars may be found other places on the OSW Hydroacoustic web pages. 05 November 13, 2014 SUBJECT: Compass Upgrade for All USGS Owned SonTek RiverSurveyor M9 and S5 ADCPs ADCP: Acoustic Doppler current profiler - The acronym is used to identify any type of instrument that obtains profiles of water velocity by transmitting sound of known frequency into the water and measuring the Doppler shift of reflections from scatterers, which are assumed to be passively moving with the water. Midsection Review Screencast Series June 2015 These screencast videos were created to be brief, and focus on specific topics related to the field review and processing of midsection ADCP data collected in TRDI SxS Pro and SonTek RiverSurveyor Stationary Live. Identifying StreamPro Site Specific Interference 13. Hydroacoustics is a rapidly changing field and these webinars are designed to provide training and updates to USGS users. Data Handling and Storage 5. Mean-channel velocities computed using index velocity methods can be used to generate records of river streamflow. The manual is intended for use as a training guide and reference text, primarily for hydraulic engineers and technicians in the U. SVMobile – Staging ADCP Measurements 11. Sound Waves 6. In most cases, an ADCP discharge-measurement system is dramatically faster than conventional discharge-measurement systems and has comparable or better accuracy. Selecting GPS Update and Baud Rates 12. Resources 11. Prerequisite Material for the SW1321 Streamflow Measurements Using ADCPs Training Course 2. The ADCP measures water currents with sound, using a principle of sound waves What’s New in Hydroacoustics The latest in equipment, policies, procedures, and common issues QRev Goals USGS standard processing algorithms Apply same algorithms to data independent of manufacture of ADCP Use the best data available Manufactures’ software often ignore usable data due to their approach to handling invalid data Use the best interpolation methods with available data to estimate values for invalid data ABSTRACT This report describes the quality-assurance measures implemented by the U. The USGS offers a variety of training opportunities in hydroacoustics. e sure to Welcome, this podcast was developed by the USGS Hydroacoustics Work Group to help users master the WinRiver II Measurement Wizard when using a Rio Grande ADCP. Temperature Drop Example 13. StreamPro Modes 14. All videos are closed captioned. Aligning ADCP and GPS compass heading used to align GPS boat speed with ADCP water speeds. Water Mode 1 16. Jun 23, 2020 · QRev is a software package for processing streamflow measurements made using an acoustic Doppler current profiler (ADCP) from a moving-boat. U. ABSTRACT This report describes the quality-assurance measures implemented by the U. About the Course 4. Note: YouTube adjusts the quality of your Policy and technical guidance described in this memo is based on knowledge and experience with ADCP’s obtained by the USGS during the past 8 years, OSW training materials, and the report Quality Assurance Plan for Discharge Measurements Using Broadband Acoustic Doppler Current Profilers (Lipscomb, 1995). Available Formats MPEG-4 (MP4) Transcript (PDF) QRev - Processing Moving-boat ADCP Discharge Measurements David S Mueller Office of Surface Water February 27, 2017 The USGS collects flow data at the breach in the Great Salt Lake causeway with an RD Instruments (RDI) 1200 Workhorse Sentinel ADCP mounted on a boom that is mounted to a 12-foot inflatable boat (fig. gov/training/SW1321TEL. Geological Survey, but the manual is also appropriate for use by other stream-gaging practitioners Policy and technical guidance described in this memo is based on knowledge and experience with ADCP’s obtained by the USGS during the past 8 years, OSW training materials, and the report Quality Assurance Plan for Discharge Measurements Using Broadband Acoustic Doppler Current Profilers (Lipscomb, 1995). Selection of the appropriate extrapolation methods for computing the discharge in the unmeasured top and bottom parts of a moving-boat acoustic Doppler current profiler (ADCP) streamflow measurement is critical to the total discharge computation. Glossary - added Appendix A – Updated for newer instruments, including discussion of phased array transducers. SonTek ADVMs are capable of measuring a variety of parameters that may be used to compute discharge at an index-velocity streamflow station. Policies Description This podcasts demonstrates how to program a Sutron Satlink Data Collection Platform (DCP) to record data from a SonTek Argonaut acoustic Doppler velocity meter or ADVM. 139) should be followed when using an ADCP, except for those guidelines that relate to depth and velocity requirements for current-meter measurements. S STEPS TO UPGRADE YOUR ADCP OSW Informational and Technical Note 2015. nd3 eruw3 ml bws y2hv5j 6mejsh aaq dge18rv 08i 4tee2r