Nevada Water Science Center

Multimedia

Select NVWSC photos are available below. For additional photos of NVWSC science, follow our social media accounts: 

Twitter: @USGS_Nevada 

Instagram: @USGS_Nevada

Facebook: USGS Science in Nevada

Filter Total Items: 76
July 8, 2019

Survey Requirements for Critical Depth Indirect Measurements

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. 
 

July 2, 2019

Survey Requirements for Culvert Indirect Measurements - Culvert Survey

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.
 

June 30, 2019

Surveying Indirect Measurements with GNSS

This video details how to survey indirect measurements with GNSS. Both RTN and RTK setups are discussed, along with tips and tricks and troubleshooting.
 

June 30, 2019

Survey Requirements for Non-Standard Culverts

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. 
 

June 25, 2019

Survey Requirements for Culvert Indirect Measurements - Overview

This video describes the survey requirements for culvert indirect measurements, including high-water mark and cross-section locations. 
 

June 24, 2019

Survey Requirements for Pipe Culverts

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.
 

June 21, 2019

Surveying Slope-Conveyance Indirect Measurement

This video shows how to survey a slope-conveyance indirect measurement using a conventional optical or digital level. 
 

June 21, 2019

Site Selection for Indirect Discharge Measurements

This video demonstrates how to select an appropriate location for an indirect measurement. Theory and initial reconnaissance are discussed. 

June 20, 2019

Survey Requirements for Box Culverts

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.
 

June 12, 2019

Introduction to the Slope-Conveyance Method

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. 
 

August 17, 2018

Overview of Indirect Measurements - Survey Requirements

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.