What do USGS Hydrologic Technicians do on the job? This video features five different Hydrologic Technicians from Washington Water Science Center and Nevada Water Science Center sharing some of their work. This video was sponsored by the USGS Hydrologic Data Advisory Committee.
Videos
What do USGS Hydrologic Technicians do on the job? This video features five different Hydrologic Technicians from Washington Water Science Center and Nevada Water Science Center sharing some of their work. This video was sponsored by the USGS Hydrologic Data Advisory Committee.
This video describes how to survey high-water marks and cross-sections for indirect measurements. Included are tips and tricks for getting across non-wadeable sections of the stream.
This video describes how to survey high-water marks and cross-sections for indirect measurements. Included are tips and tricks for getting across non-wadeable sections of the stream.
This video describes the field selection of roughness coefficients, or Manning's "n" values. Both the comparative (photos) and analytical (Cowan's) methods are discussed.
This video describes the field selection of roughness coefficients, or Manning's "n" values. Both the comparative (photos) and analytical (Cowan's) methods are discussed.
This video describes how to use SAC-GUI in the field to plot high-water mark profiles. Plotting high-water marks in the field is required for most indirect measurement techniques
This video describes how to use SAC-GUI in the field to plot high-water mark profiles. Plotting high-water marks in the field is required for most indirect measurement techniques
This video covers the theory behind a slope-area indirect measurement, the most common type of indirect measurement used in the USGS.
This video covers the theory behind a slope-area indirect measurement, the most common type of indirect measurement used in the USGS.
This video goes into detail about where to flag high-water marks and how to survey a slope-area measurement. A simple one-setup Total Station survey is demonstrated.
This video goes into detail about where to flag high-water marks and how to survey a slope-area measurement. A simple one-setup Total Station survey is demonstrated.
This video describes the high-water marks needed along with cross-section locations for critical depth indirect measurements. Critical depth computations are those performed when flow goes through a critical flow regime at a drop, such as at a waterfall.
This video describes the high-water marks needed along with cross-section locations for critical depth indirect measurements. Critical depth computations are those performed when flow goes through a critical flow regime at a drop, such as at a waterfall.
This video describes the survey requirements for culvert indirect measurements, specifically how to measure various aspects of the culvert itself. This video provides a general overview of how to survey culvert attributes, such as the invert and length.
This video describes the survey requirements for culvert indirect measurements, specifically how to measure various aspects of the culvert itself. This video provides a general overview of how to survey culvert attributes, such as the invert and length.
This video discusses how to measure various aspects of non-standard culverts, such as mitered culverts. Using the slope-area method inside a culvert is also discussed.
This video discusses how to measure various aspects of non-standard culverts, such as mitered culverts. Using the slope-area method inside a culvert is also discussed.
This video details how to survey indirect measurements with GNSS. Both RTN and RTK setups are discussed, along with tips and tricks and troubleshooting.
This video details how to survey indirect measurements with GNSS. Both RTN and RTK setups are discussed, along with tips and tricks and troubleshooting.
This video describes the survey requirements for culvert indirect measurements, including high-water mark and cross-section locations.
This video describes the survey requirements for culvert indirect measurements, including high-water mark and cross-section locations.
This video demonstrates how to measure various aspects of pipe and pipe-arch culverts for culvert indirect measurements. The video includes tips and tricks for measuring the geometry, corrugations, and entrance types including rounded or beveled entrances.
This video demonstrates how to measure various aspects of pipe and pipe-arch culverts for culvert indirect measurements. The video includes tips and tricks for measuring the geometry, corrugations, and entrance types including rounded or beveled entrances.
This video shows how to survey a slope-conveyance indirect measurement using a conventional optical or digital level.
This video shows how to survey a slope-conveyance indirect measurement using a conventional optical or digital level.
This video demonstrates how to select an appropriate location for an indirect measurement. Theory and initial reconnaissance are discussed.
This video demonstrates how to select an appropriate location for an indirect measurement. Theory and initial reconnaissance are discussed.
This video details how to measure various aspects of a box culvert for a culvert indirect measurement. The video includes tips and tricks for measuring the geometry, wingwall angles, and entrance types including rounded or beveled entrances.
This video details how to measure various aspects of a box culvert for a culvert indirect measurement. The video includes tips and tricks for measuring the geometry, wingwall angles, and entrance types including rounded or beveled entrances.
This video provides an introduction to the slope-conveyance method of indirect measurement. Theory and background are described as well as high-water mark and cross-section placement.
This video provides an introduction to the slope-conveyance method of indirect measurement. Theory and background are described as well as high-water mark and cross-section placement.
Video shows periphyton growth along the nearshore of Lake Tahoe.
This video provides an overview of the different indirect measurement methods used by the USGS, as well as a brief description of what you'll need to survey for each.
This video provides an overview of the different indirect measurement methods used by the USGS, as well as a brief description of what you'll need to survey for each.
In this video, you will learn what and where to survey for a road overflow or broad-crested weir indirect measurement.
In this video, you will learn what and where to survey for a road overflow or broad-crested weir indirect measurement.
This video describes the survey requirements for indirect measurements with multiple components, like flow going through a culvert and over a road on top of the culvert at the same time.
This video describes the survey requirements for indirect measurements with multiple components, like flow going through a culvert and over a road on top of the culvert at the same time.
This video describes the notes and other metadata that need to be recorded during indirect measurement surveys.
This video describes the notes and other metadata that need to be recorded during indirect measurement surveys.