The USGS collects fluvial sediment and geomorphic data and conducts related research at numerous sites across the Nation. This information is essential to informed solutions to sediment-related and overall water resource management issues.
The USGS Fluvial Sediment and Geomorphology Program is responsible for:
- promoting consistency and accuracy in fluvial sediment data collection within the USGS;
- developing policies, guidelines, tools, and training resources that support USGS sediment monitoring programs;
- providing technical assistance to USGS and partner agencies in sediment and geomorphic monitoring topics;
- developing and promoting new technologies and methods in sediment and geomorphic monitoring, to improve the value, accuracy, and availability of related data;
- and providing science leadership and coordinating with partner agencies and programs to help address national sediment problems.
These webpages provide information on our activities and resources which support the greater fluvial sediment and geomorphology community.
USGS Training Classes
Contact Molly Wood with questions about course availability and registration.
- Sediment Data Collection Techniques (SW1091): Course coordinator, Gary Johnson; Castle Rock, Washington; Typically offered in March, annually
- Geomorphic Analysis of Fluvial Systems (QW1169): Coordinator, Allen Gellis; Class location and time varies annually
- Sediment Records Computation and Interpretation (SW2096): Coordinator, Greg Koltun; Denver, Colorado; Class time varies annually
- Acoustic Index Method for Estimating Fluvial Suspended Sediment (USGS-H-17-037): Coordinator, Molly Wood; Minneapolis, Minnesota; Typically offered in summer, annually
- Field Methods for the Collection of Sediment and Water-Quality Samples with Large Samplers from Boats on Large Rivers (ID1837): Coordinator, Stan Skrobialowski; Vicksburg, Mississippi; Typically offered in January or February, annually
On-Demand Classes
- Sound Sediment Science: Online, self-paced course on an introduction to the acoustic index method for estimating fluvial suspended sediment
- Introduction to Suspended Sediment Sampling by Nolan, K. Michael, Gray, John R., and Glysson, G. Douglas, U.S. Geological Survey Scientific Investigations Report 2005-5077. The course was originally on a CD-ROM. The content was migrated to a digital, on-demand format and was updated on June 1, 2022. This course presents an introduction to methods currently used by the USGS to sample suspended-sediment concentrations and particle-size distribution in streams. USGS employees should complete the DOI Talent version.
Workshops and Conferences
- ACWI Subcommittee on Sedimentation Conferences and Workshops
- Consortium of Universities for the Advancement of Hydrologic Science, Inc. (CUAHSI) Upcoming Training Workshops
Policy Memos Related to Fluvial Sediment and Geomorphology
Surface Water
- sw2016.07 Policy and guidance for approval of surrogate regression models for computation of time series suspended-sediment concentrations and loads [763KB]
- sw2016.05 Availability of Techniques and Methods 3-C5, Sediment Acoustic Index Method for Computing Continuous Suspended-Sediment Concentrations [76KB]
- sw2015.01 Policy and Guidelines for Archival of Surface-Water, Groundwater, and Water-Quality Model Applications [400KB PDF]
- sw13.03 Guidelines for FISP Bag Sampler Intake Efficiency Tests and Operational Velocities [266KB PDF]
- sw12.05 Creation of Sediment Acoustic Leadership Team (SALT)
- sw10.03 Policy for the mandatory storage of discrete sediment data and selected metadata in the National Water Information System, and availability of SedLOGIN software to assist in data entry
- sw10.01 Publication of Techniques and Methods Report Book 3, Chapter C4 “Guidelines and Procedures for Computing Time-Series Suspended-Sediment Concentrations and Loads from In-Stream Turbidity-Sensor and Streamflow Data,” by Patrick P. Rasmussen, John R. Gray, G. Douglas Glysson, and Andrew C. Ziegler
- sw09.06 Availability of RESSED, a REServoir SEDimentation Website and Database for the United States
- sw04.02 The Graphical Constituent Loading Analysis System (GCLAS) for computing discharges of suspended sediment and other water-quality constituents
- sw04.01 Water Resources Discipline Policy on Storage and Publication of Fluvial-Sediment Data with Updated Method Codes
- sw03.06 Guidance for Bridge Scour Studies
- sw01.03 Collection and Use of Total Suspended Solids Data
- sw99.04 Guidelines from the 1998 Sediment Laboratory Chiefs Workshop
- sw99.02 Sediment and Ancillary Data on the World Wide Web
- sw99.01 Guidance for Collecting Discharge-Weighted Samples in Surface Water Using an Isokinetic Sampler
- sw98.05 A National Quality Assurance Program for Sediment Laboratories Operated or Used by the Water Resources Division
- sw97.04 Distribution of Water-Resources Investigations Report 96-4310, Method for Rapid Estimation of Scour at Highway Bridges Based on Limited Site Data, by Stephen R. Holnbeck and Charles Parrett
- sw96.11 Initiation of a Sediment Laboratory Quality Assurance Project
- sw96.10 Distribution of "Channel Scour at Bridges in the United States", by Mark N. Landers and David S. Mueller (Federal Highway Administration Publication FHWA RD 95 184), and of "Bridge-Scour Data Management System User's Manual," by Mark N. Landers, David S. Mueller, and Gary R. Martin (U.S. Geological Survey Open-File Report 95-754)
- sw96.08 Sixth Federal Interagency Conference Proceedings
- sw96.07 Sediment Laboratory Procedures
- sw95.10 Consolidation of Sediment Laboratories
- sw95.09 Endorsement of Sediment Records Calculation Program (SEDCALC)
- sw95.06 Distribution of "Evaluation of pipet and x-ray procedures for determining particle-size distributions of sediment," Federal Interagency Project Report KK
- sw95.01 Information Concerning the Federal Interagency Sedimentation Project
- sw94.04 Compilation of memorandums and other materials concerning office procedures for sediment records, supplementing sw92.08
- sw93.21 Policy and technical guidance for conversion of sediment concentration from parts per million (ppm) to milligrams per liter (mg/L)
- sw93.11 Water Resources Division (WRD) Policy on Publication of Sediment Size Data Determined by use of the Sedigraph
- sw93.10 Test Results for the Deca (Cone) Splitter
- sw93.08 Recommendations for use of retransformation methods in regression models used to estimate sediment loads ("The bias correction problem")
- sw93.04 Correction to Office of Surface Water Technical Memorandum No. 93.01
- sw93.01 Summary of Documentation that Describes Instrumentation and Field Methods for Collecting Sediment Data
- sw92.08 PROGRAMS & PLANS--Compilation of memorandums related to sediment
- sw92.06 PUBLICATIONS--New parameter codes for bedload data
- sw92.05 PROGRAMS AND PLANS--Policy on suspended sediment filers--The asbestos mat shall not be used. The Whatman 934 AH shall be used
- sw92.03 PROGRAMS AND PLANS--Guidelines for the Transmittal of Bridge-Scour Information to Cooperators
- sw91.15 PROGRAMS AND PLANS--Guidelines for the Analyses of Sediment Data
- sw91.11 TRAINING--Certification Training for Sediment Laboratories
- sw91.10 PROGRAMS AND PLANS--Dendrogeomorphic Techniques
- sw91.02 REPORTS--References to Sediment Reports
- sw90.08 PROGRAMS AND PLANS--Policy and Guidelines for the Collection and Publication of Bedload Data (sw90.08.att HISTORICAL BACKGROUND)
- sw90.07 PUBLICATIONS--Transmittal of Report, "Twelve Selected Computer Stream Sedimentation Models Developed in the United States"
- sw90.06 PUBLICATIONS--Notes on Sedimentation Activities, Calendar Year 1988
- sw90.05 PROGRAMS AND PLANS--Transport Modeling System Announced
- sw89.10 "Use of Surface-Geophysical Methods to Assess Riverbed Scour at Bridge Piers"
- sw88.17 Distribution of Open-File Report "Field Methods for Measurement of Fluvial Sediment" and the Proposed Water Resources Division
- sw88.01 PUBLICATIONS--Notes on Sedimentation Activities, Calendar Year 1986
- sw87.07 "Pilot Study for Collection of Bridge Scour Data"
- sw87.02 PUBLICATIONS--Notes on Sedimentation Activities, Calendar Years 1985 and 1986
- sw86.06 EQUIPMENT--DH-81 Suspended-Sediment Sampler
Water Resources Division
- WRD82.28 Acceptability and Use of Water-Quality Analytical Methods
Water Quality
- qw81.02 EQUIPMENT AND SUPPLIES: Operation and availability--D-77 Water-Quality Sampler
- qw80.18 Equipment and Supplies: Samplers--Problems with installation of plastic nozzles on samplers
- qw80.17 EQUIPMENT AND SUPPLIES--New sample splitter for water-quality samples
- qw80.06 EQUIPMENT AND SUPPLIES--Samplers; color-coded nozzles for sediment samplers
- qw80.03 EQUIPMENT & SUPPLIES: Samplers--P-61 and P-63 Point-Integrating Sediment Samplers
- qw78.03 EQUIPMENT & SUPPLIES -- Churn Splitters
- qw77.08 PUBLICATIONS: Open-File Report, Relationship of Sediment Discharge to Streamflow
- qw77.03 EQUIPMENT & SUPPLIES: DH-75 Suspended-Sediment Sampler
- qw76.17 WATER QUALITY--Sampling mixtures of water and suspended sediment in streams
- qw72.13 PUBLICATION -- TWRI Book 3, Chapter C3, Computations of fluvial-sediment discharge, by George Porterfield
- qw72.04 PROGRAMS AND PLANS--Instructions for use of sediment samplers for the collection of samples to be analyzed for organic substances
- qw71.09 PROGRAMS AND PLANS--Guidelines for sampling and analysis of water-quality constituents associated with solids
- qw71.05 PROGRAMS AND PLANS - Sampling and analysis of water-quality constituents associated with suspended solids
Below are additional information and resources associated with this program.
Sediment Sampling and Data Processing
Sediment Surrogate Techniques
Sediment Laboratories
Sediment Acoustics
USGS sediment data can be retrieved through our national databases and data dissemination tools:
USGS Surface-Water Data for the Nation
Real-time, daily, peak-flow, field measurements, and statistics of current and historical data that describe stream levels, streamflow (discharge), reservoir and lake levels, surface-water quality, and rainfall across the U.S. Surface-water data are collected and stored as either discrete field-water-level measurements or as continuous time-series data from automated recorders.
The following are selected, key publications on sediment data collection and analysis activities. See the Related Science tab for more detailed lists of publications related to specific sediment programs.
Sediment acoustic index method for computing continuous suspended-sediment concentrations
Guidelines and Procedures for Computing Time-Series Suspended-Sediment Concentrations and Loads from In-Stream Turbidity-Sensor and Streamflow Data
A guide to the proper selection and use of federally approved sediment and water-quality samplers
Introduction to suspended-sediment sampling
National Field Manual for the Collection of Water-Quality Data. U.S. Geological Survey Techniques of Water-Resources Investigations, Book 9
Field methods for measurement of fluvial sediment
Computation of fluvial-sediment discharge
Sediment-transport curves
USGS sediment data can be retrieved through our national databases and data dissemination tools:
NWIS Current Water Data for the Nation (Real-Time Data)
The USGS provides real-time or near-real-time conditions water data at sites across the Nation. Current data typically are recorded at 15- to 60-minute intervals, stored onsite, and then transmitted to USGS offices every 1 to 4 hours, depending on the data relay technique used. Recording and transmission times may be more frequent during critical events.
Water Quality Portal
The Water Quality Portal integrates and provides access to publicly available water-quality data from databases such as USGS NWIS and BioData, EPA STORET, and USDA-ARS STEWARDS through a single search interface.
Below are partners associated with this program.
- Overview
The USGS collects fluvial sediment and geomorphic data and conducts related research at numerous sites across the Nation. This information is essential to informed solutions to sediment-related and overall water resource management issues.
The USGS Fluvial Sediment and Geomorphology Program is responsible for:
- promoting consistency and accuracy in fluvial sediment data collection within the USGS;
- developing policies, guidelines, tools, and training resources that support USGS sediment monitoring programs;
- providing technical assistance to USGS and partner agencies in sediment and geomorphic monitoring topics;
- developing and promoting new technologies and methods in sediment and geomorphic monitoring, to improve the value, accuracy, and availability of related data;
- and providing science leadership and coordinating with partner agencies and programs to help address national sediment problems.
These webpages provide information on our activities and resources which support the greater fluvial sediment and geomorphology community.
USGS Training Classes
Contact Molly Wood with questions about course availability and registration.
- Sediment Data Collection Techniques (SW1091): Course coordinator, Gary Johnson; Castle Rock, Washington; Typically offered in March, annually
- Geomorphic Analysis of Fluvial Systems (QW1169): Coordinator, Allen Gellis; Class location and time varies annually
- Sediment Records Computation and Interpretation (SW2096): Coordinator, Greg Koltun; Denver, Colorado; Class time varies annually
- Acoustic Index Method for Estimating Fluvial Suspended Sediment (USGS-H-17-037): Coordinator, Molly Wood; Minneapolis, Minnesota; Typically offered in summer, annually
- Field Methods for the Collection of Sediment and Water-Quality Samples with Large Samplers from Boats on Large Rivers (ID1837): Coordinator, Stan Skrobialowski; Vicksburg, Mississippi; Typically offered in January or February, annually
On-Demand Classes
- Sound Sediment Science: Online, self-paced course on an introduction to the acoustic index method for estimating fluvial suspended sediment
- Introduction to Suspended Sediment Sampling by Nolan, K. Michael, Gray, John R., and Glysson, G. Douglas, U.S. Geological Survey Scientific Investigations Report 2005-5077. The course was originally on a CD-ROM. The content was migrated to a digital, on-demand format and was updated on June 1, 2022. This course presents an introduction to methods currently used by the USGS to sample suspended-sediment concentrations and particle-size distribution in streams. USGS employees should complete the DOI Talent version.
Workshops and Conferences
- ACWI Subcommittee on Sedimentation Conferences and Workshops
- Consortium of Universities for the Advancement of Hydrologic Science, Inc. (CUAHSI) Upcoming Training Workshops
Policy Memos Related to Fluvial Sediment and Geomorphology
Surface Water
- sw2016.07 Policy and guidance for approval of surrogate regression models for computation of time series suspended-sediment concentrations and loads [763KB]
- sw2016.05 Availability of Techniques and Methods 3-C5, Sediment Acoustic Index Method for Computing Continuous Suspended-Sediment Concentrations [76KB]
- sw2015.01 Policy and Guidelines for Archival of Surface-Water, Groundwater, and Water-Quality Model Applications [400KB PDF]
- sw13.03 Guidelines for FISP Bag Sampler Intake Efficiency Tests and Operational Velocities [266KB PDF]
- sw12.05 Creation of Sediment Acoustic Leadership Team (SALT)
- sw10.03 Policy for the mandatory storage of discrete sediment data and selected metadata in the National Water Information System, and availability of SedLOGIN software to assist in data entry
- sw10.01 Publication of Techniques and Methods Report Book 3, Chapter C4 “Guidelines and Procedures for Computing Time-Series Suspended-Sediment Concentrations and Loads from In-Stream Turbidity-Sensor and Streamflow Data,” by Patrick P. Rasmussen, John R. Gray, G. Douglas Glysson, and Andrew C. Ziegler
- sw09.06 Availability of RESSED, a REServoir SEDimentation Website and Database for the United States
- sw04.02 The Graphical Constituent Loading Analysis System (GCLAS) for computing discharges of suspended sediment and other water-quality constituents
- sw04.01 Water Resources Discipline Policy on Storage and Publication of Fluvial-Sediment Data with Updated Method Codes
- sw03.06 Guidance for Bridge Scour Studies
- sw01.03 Collection and Use of Total Suspended Solids Data
- sw99.04 Guidelines from the 1998 Sediment Laboratory Chiefs Workshop
- sw99.02 Sediment and Ancillary Data on the World Wide Web
- sw99.01 Guidance for Collecting Discharge-Weighted Samples in Surface Water Using an Isokinetic Sampler
- sw98.05 A National Quality Assurance Program for Sediment Laboratories Operated or Used by the Water Resources Division
- sw97.04 Distribution of Water-Resources Investigations Report 96-4310, Method for Rapid Estimation of Scour at Highway Bridges Based on Limited Site Data, by Stephen R. Holnbeck and Charles Parrett
- sw96.11 Initiation of a Sediment Laboratory Quality Assurance Project
- sw96.10 Distribution of "Channel Scour at Bridges in the United States", by Mark N. Landers and David S. Mueller (Federal Highway Administration Publication FHWA RD 95 184), and of "Bridge-Scour Data Management System User's Manual," by Mark N. Landers, David S. Mueller, and Gary R. Martin (U.S. Geological Survey Open-File Report 95-754)
- sw96.08 Sixth Federal Interagency Conference Proceedings
- sw96.07 Sediment Laboratory Procedures
- sw95.10 Consolidation of Sediment Laboratories
- sw95.09 Endorsement of Sediment Records Calculation Program (SEDCALC)
- sw95.06 Distribution of "Evaluation of pipet and x-ray procedures for determining particle-size distributions of sediment," Federal Interagency Project Report KK
- sw95.01 Information Concerning the Federal Interagency Sedimentation Project
- sw94.04 Compilation of memorandums and other materials concerning office procedures for sediment records, supplementing sw92.08
- sw93.21 Policy and technical guidance for conversion of sediment concentration from parts per million (ppm) to milligrams per liter (mg/L)
- sw93.11 Water Resources Division (WRD) Policy on Publication of Sediment Size Data Determined by use of the Sedigraph
- sw93.10 Test Results for the Deca (Cone) Splitter
- sw93.08 Recommendations for use of retransformation methods in regression models used to estimate sediment loads ("The bias correction problem")
- sw93.04 Correction to Office of Surface Water Technical Memorandum No. 93.01
- sw93.01 Summary of Documentation that Describes Instrumentation and Field Methods for Collecting Sediment Data
- sw92.08 PROGRAMS & PLANS--Compilation of memorandums related to sediment
- sw92.06 PUBLICATIONS--New parameter codes for bedload data
- sw92.05 PROGRAMS AND PLANS--Policy on suspended sediment filers--The asbestos mat shall not be used. The Whatman 934 AH shall be used
- sw92.03 PROGRAMS AND PLANS--Guidelines for the Transmittal of Bridge-Scour Information to Cooperators
- sw91.15 PROGRAMS AND PLANS--Guidelines for the Analyses of Sediment Data
- sw91.11 TRAINING--Certification Training for Sediment Laboratories
- sw91.10 PROGRAMS AND PLANS--Dendrogeomorphic Techniques
- sw91.02 REPORTS--References to Sediment Reports
- sw90.08 PROGRAMS AND PLANS--Policy and Guidelines for the Collection and Publication of Bedload Data (sw90.08.att HISTORICAL BACKGROUND)
- sw90.07 PUBLICATIONS--Transmittal of Report, "Twelve Selected Computer Stream Sedimentation Models Developed in the United States"
- sw90.06 PUBLICATIONS--Notes on Sedimentation Activities, Calendar Year 1988
- sw90.05 PROGRAMS AND PLANS--Transport Modeling System Announced
- sw89.10 "Use of Surface-Geophysical Methods to Assess Riverbed Scour at Bridge Piers"
- sw88.17 Distribution of Open-File Report "Field Methods for Measurement of Fluvial Sediment" and the Proposed Water Resources Division
- sw88.01 PUBLICATIONS--Notes on Sedimentation Activities, Calendar Year 1986
- sw87.07 "Pilot Study for Collection of Bridge Scour Data"
- sw87.02 PUBLICATIONS--Notes on Sedimentation Activities, Calendar Years 1985 and 1986
- sw86.06 EQUIPMENT--DH-81 Suspended-Sediment Sampler
Water Resources Division
- WRD82.28 Acceptability and Use of Water-Quality Analytical Methods
Water Quality
- qw81.02 EQUIPMENT AND SUPPLIES: Operation and availability--D-77 Water-Quality Sampler
- qw80.18 Equipment and Supplies: Samplers--Problems with installation of plastic nozzles on samplers
- qw80.17 EQUIPMENT AND SUPPLIES--New sample splitter for water-quality samples
- qw80.06 EQUIPMENT AND SUPPLIES--Samplers; color-coded nozzles for sediment samplers
- qw80.03 EQUIPMENT & SUPPLIES: Samplers--P-61 and P-63 Point-Integrating Sediment Samplers
- qw78.03 EQUIPMENT & SUPPLIES -- Churn Splitters
- qw77.08 PUBLICATIONS: Open-File Report, Relationship of Sediment Discharge to Streamflow
- qw77.03 EQUIPMENT & SUPPLIES: DH-75 Suspended-Sediment Sampler
- qw76.17 WATER QUALITY--Sampling mixtures of water and suspended sediment in streams
- qw72.13 PUBLICATION -- TWRI Book 3, Chapter C3, Computations of fluvial-sediment discharge, by George Porterfield
- qw72.04 PROGRAMS AND PLANS--Instructions for use of sediment samplers for the collection of samples to be analyzed for organic substances
- qw71.09 PROGRAMS AND PLANS--Guidelines for sampling and analysis of water-quality constituents associated with solids
- qw71.05 PROGRAMS AND PLANS - Sampling and analysis of water-quality constituents associated with suspended solids
- Science
Below are additional information and resources associated with this program.
Sediment Sampling and Data Processing
USGS collects sediment samples at thousands of locations across the U.S. using nationally consistent methods.Sediment Surrogate Techniques
USGS develops and uses “surrogate” techniques to estimate sediment at times when it can’t be physically measured through samples.Sediment Laboratories
The USGS maintains sediment laboratories in several Water Science Centers and offices across the country.Sediment Acoustics
The U.S. Geological Survey recognizes the need to provide sediment acoustic training and to develop standardized techniques and practices. - Data
USGS sediment data can be retrieved through our national databases and data dissemination tools:
USGS Surface-Water Data for the Nation
Real-time, daily, peak-flow, field measurements, and statistics of current and historical data that describe stream levels, streamflow (discharge), reservoir and lake levels, surface-water quality, and rainfall across the U.S. Surface-water data are collected and stored as either discrete field-water-level measurements or as continuous time-series data from automated recorders.
- Publications
The following are selected, key publications on sediment data collection and analysis activities. See the Related Science tab for more detailed lists of publications related to specific sediment programs.
Sediment acoustic index method for computing continuous suspended-sediment concentrations
Suspended-sediment characteristics can be computed using acoustic indices derived from acoustic Doppler velocity meter (ADVM) backscatter data. The sediment acoustic index method applied in these types of studies can be used to more accurately and cost-effectively provide time-series estimates of suspended-sediment concentration and load, which is essential for informed solutions to many sediment-Guidelines and Procedures for Computing Time-Series Suspended-Sediment Concentrations and Loads from In-Stream Turbidity-Sensor and Streamflow Data
In-stream continuous turbidity and streamflow data, calibrated with measured suspended-sediment concentration data, can be used to compute a time series of suspended-sediment concentration and load at a stream site. Development of a simple linear (ordinary least squares) regression model for computing suspended-sediment concentrations from instantaneous turbidity data is the first step in the compA guide to the proper selection and use of federally approved sediment and water-quality samplers
The Federal Interagency Sedimentation Project (FISP) was created in 1939 to unify and standardize the research and development activities of Federal agencies involved in fluvial sediment studies1,2. Research and development conducted by the FISP originally focused on hydraulic and mechanical aspects of sediment sampling. The mission of the FISP has expanded to provide, identify, and evaluate toolsIntroduction to suspended-sediment sampling
Knowledge of the amount and timing of sediment transport in streams is important to those directly or indirectly responsible for developing and managing water and land resources. Such data are often used to judge the health of watershed and the success or failure of activities designed to mitigate adverse impacts of sediment on streams and stream habitats. This training class presents an introductNational Field Manual for the Collection of Water-Quality Data. U.S. Geological Survey Techniques of Water-Resources Investigations, Book 9
The mission of the Water Resources Discipline of the U.S. Geological Survey (USGS) is to provide the information and understanding needed for wise management of the Nation's water resources. Inherent in this mission is the responsibility to collect data that accurately describe the physical, chemical, and biological attributes of water systems. These data are used for environmental and resource asField methods for measurement of fluvial sediment
This chapter describes equipment and procedures for collection and measurement of fluvial sediment. The complexity of the hydrologic and physical environments and man's ever-increasing data needs make it essential for those responsible for the collection of sediment data to be aware of basic concepts involved in processes of erosion, transport, deposition of sediment, and equipment and proceduresComputation of fluvial-sediment discharge
This report is one of a series concerning the concepts, measurement, laboratory procedures, and computation of fluvial-sediment discharge. Material in this report includes procedures and forms used to compile and evaluate particle-size and concentration data, to compute fluvial-sediment discharge, and to prepare sediment records for publication.Sediment-transport curves
The process of developing a sediment transport curve is discussed with respect to the choice of dependent and independent variables, procedures for developing a transport curve, and the effects that seasons, major sediment transporting events, and timing of peaks can have on the shape of sediment transport curves. Examples of the visual fit, linear regression, and group average methods are given. - Web Tools
USGS sediment data can be retrieved through our national databases and data dissemination tools:
NWIS Current Water Data for the Nation (Real-Time Data)
The USGS provides real-time or near-real-time conditions water data at sites across the Nation. Current data typically are recorded at 15- to 60-minute intervals, stored onsite, and then transmitted to USGS offices every 1 to 4 hours, depending on the data relay technique used. Recording and transmission times may be more frequent during critical events.
Water Quality Portal
The Water Quality Portal integrates and provides access to publicly available water-quality data from databases such as USGS NWIS and BioData, EPA STORET, and USDA-ARS STEWARDS through a single search interface.
- Partners
Below are partners associated with this program.