Multimedia Gallery

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.
 

Mike Poland, Scientist-in-Charge of the Yellowstone Volcano Observatory, describes activity at Yellowstone during the month of June, 2019.
 

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 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. 
 

Title: USGS Fire Science: Understanding why wildlands burn and what can be done about it

• Wildfires are expensive, dangerous, and have massive impacts on people and ecosystems, yet ecosystems evolved with wildland fire. 
• USGS fire scientists help understand what factors affect wildland fire occurrence, intensity, spread, and effects. 
• What can

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 select an appropriate location for an indirect measurement. Theory and initial reconnaissance are discussed. 

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

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. 
 

Tribes have been actively engaged in efforts to anticipate and respond to climate impacts on their natural and cultural resources. And yet, some tribes have faced difficulties initiating and completing the critical first step of the climate adaptation planning process: an assessment of locally-specific climate risks that accounts for the unique priorities, values, and

This video provides basic information about the HydroLink Tool to get you up and running with the basic tool capabilities.
 

This animation takes the viewer down the Glen Canyon from Bullfrog Bay to the Rincon, in the Glen Canyon National Recreation Area. New high resolution multibeam bathymetry collected by the USGS in 2018 shows the submerged portions of Glen Canyon. 
 

The Marsh Arabs of southeastern Iraq have spent millennia traversing the waterways at the confluence of the Tigris and Euphrates rivers. The recent history of those wetlands, however, has been one of forced loss and uneven recovery. 

The marshes once stretched across nearly 5,800 square miles. This Landsat 5 image from 1986 shows lush vegetation and dark waters both

Mike Poland, Scientist-in-Charge of the Yellowstone Volcano Observatory, describes activity at Yellowstone during the month of May, 2019.
 

This is an animation showing the changing conditions of USGS streamgages from January 1, 2019 to June 1, 2019. The conditions shown range from the driest condition seen at a gage (red open circles) to the wettest (blue closed circles). There is also a purple ring added to indicate gages that are flooding. During the animation, three locations in TN broke record water

Recorded June 1, 2019 - August 18, 2019

Video shows a series of photos taken every hour during daylight hours in the summer of 2019. The camera looks westward along the coastal bluffs of Barter Island, located on Alaska’s North Slope. A pole on the bluff, visible in the first half of the video, once supported another video camera that was aimed at

Title: New Mapping of the Rodgers Creek Fault: It's longer and more complex than we thought

• Remote sensing technology reveals surface traces of the fault covered by trees and buildings.
• Greater fault length and linkages to neighboring faults make larger earthquakes possible. 
• Fault complexity has implications for hazards from ground shaking

LP360 is a family of tools for visualizing, manipulating and editing point cloud data and are offered both as an extension for ArcGIS, and as a standalone desktop platform for Window. By the end of this lesson, you will be able to open LiDAR point cloud LAS data files in the LP360 Viewer, visualize the data in 2-D and 3-D, change the visualization using toolbar functions,

Global Mapper is a software package for visualizing, analyzing, manipulating, and exporting a wide variety of GIS data. By the end of this lesson, you will be able to open LiDAR point cloud LAS data files in Global Mapper, turn on all or specific LiDAR point Classes, visualize the data in 2-D and 3-D, and change the visualization using toolbar functions.
 

USGS Storm Tide Sensors are specialized scientific instruments used to measure the depth and duration of storm surge during coastal storms. The data these sensors collect before, during and after a storm will help public officials assess storm damage, and improve computer models used to forecast storm surge and coastal change. FEMA and other federal, state and local