TAG: USGS

USGS, scientists test drone-based river analysis

June 4, 2019By
2019 Aquatic Airshow participants at Androscoggin River in Auburn, Maine, on May 1. (Photo: Mario Martin-Alciati, USGS)

The U.S. Geological Survey (USGS) and independent scientists gathered in Auburn, Maine, to evaluate the use of sensor-mounted unmanned aircraft systems (UAS) to gauge stream stage, velocity, bathymetry and discharge. The technology is being evaluated and modeled to determine whether it will support the fast, accurate and safe measurement of rivers, especially when they are flooded or contain floating trees,... read more

The story of GIS at DHS: From Manhattan to Katrina

May 8, 2019By and
Photo:

Part 1 In a rare historic moment, Congress understood geospatial technology’s important role would be key to support the new Department of Homeland Security. Written by Nate Smith; edited and co-written by William Tewelow, GISP If it doesn’t kill you it makes you stronger, but therein is the rub: You first have to avoid dying. Nothing sharpens the mind like... read more

Scientists map fast-moving fault off Alaska

August 7, 2018By

U.S. researchers have completed the first high-resolution, comprehensive mapping of one of the fastest moving underwater tectonic faults in the world, located in southeastern Alaska. The mapping information will help communities in coastal Alaska and Canada better understand and prepare for the risks from earthquakes and tsunamis that can occur when faults suddenly move. Since 2015, scientists have been gathering... read more

US wildfires mapped and placed in context

August 3, 2018By
This Esri Storymap provides a quick snapshot of the raging fires across the United States. (Screenshot: Esri)

An Esri Storymap provides a quick snapshot of the raging fires across the United States and provides context to the severity of the California fires. The interactive map can be explored by panning and zooming. Click on a fire and information about that particular fire is displayed including the start date, containment and links to the latest news and social information.... read more

Quantum Spatial lidar surveys provide volcano eruption insights

August 1, 2018By
Looking southwest towards Leilani Estates with Fissure 8 erupting in the background. (Image: Ron Chapple/GEO 1)

High-resolution lidar surveys help first responders, scientists and government agencies monitor Kilauea conditions and predict future lava flows. Independent geospatial data firm Quantum Spatial Inc. (QSI) has conducted high-resolution lidar surveys of areas surrounding the Kilauea volcano eruption in Hawaii. The emergency response effort was part of the U.S. Geological Survey’s (USGS) Rapid Response Imagery Products (RRIP) in support of the... read more

Esri book highlights analyzing, mapping surface water features

June 26, 2018By

Esri has published its latest book, “GIS for Surface Water: Using the National Hydrography Dataset,” by Jeff Simley, which details how to use geographic information system (GIS) technology to visualize and analyze data sets. Simley is an award-winning cartographer and the former lead of the Hydrography Program at the United States Geological Survey (USGS). The book examines the complexities of... read more

Dewberry to update lidar for Puerto Rico and US Virgin Islands after hurricane

June 6, 2018By

The U.S. Geological Survey (USGS) has selected Dewberry, a privately held professional services firm, to collect and process Quality Level 1 topographic lidar data of Puerto Rico, including the islands of Culebra, Vieques and Isla de Mona; and the U.S. Virgin Islands of St. Croix, St. John and St. Thomas. The new data will be used to identify the impact... read more

USGS map locates lava flows before an eruption

December 1, 2017By
Map: USGS

New U.S. Geological Survey (USGS) maps show areas that could be affected by Mauna Loa lava flows — information critical for response planning. Each zone identifies a segment of the volcano that could erupt lava and send flows downslope. The volcano has erupted 33 times since 1843. Typically, eruptions began in the summit caldera, with a curtain of fire (a... read more

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Satellite imagery aids rescue efforts for Hurricanes Harvey, Irma and Maria

November 28, 2017By

Free and rapid imagery was provided through the USGS Hazard Data Distribution System. The calls for assistance started days before Hurricane Harvey came barreling across America’s doorstep this summer. First responders and government officials needed answers to prepare and protect communities. How strong is this storm going to be? What kind of damage occurred on its path through the Caribbean?... read more

USGS tool allows users to explore mountains worldwide

October 24, 2017By

A new tool that gives users a detailed view of the world’s mountains is now available from the U.S. Geological Survey (USGS). The Global Mountain Explorer can help users ranging from hikers to scientists, resource managers and policy makers seeking information on these prominent yet often understudied landscapes. Mountains occupy from 12 to 31 percent of the land surface of the Earth,... read more