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Filter Total Items: 119
Gordon Swann crab fishing
Date Published: September 19, 2018
Status: Completed

Gordan Alfred Swann

Gordon Alfred Swann was born in Palisade, CO, September 21, 1931. After serving in the U.S. Navy from 1952 to 1956, he received a Ph.D. from the University of Colorado in 1962 as one of the pioneers in a study of the Precambrian geology of the Front Range of Colorado. His career in the U.S. Geological Survey (USGS) began in Denver in 1963 working on a Defense Department...

Dave Roddy
Date Published: September 19, 2018
Status: Completed

Dave Roddy

Dave Roddy was a world-renowned scientist at the forefront of investigators studying impact and explosion craters. His field mapping of Flynn Creek was the first mapping detailed enough to demonstrate the impact origin of an ancient structure in North America. David was an authority on the Meteor Crater impact structure, east of Flagstaff. Dave's work has assisted in the...

Ray Batson
Date Published: September 19, 2018
Status: Completed

Raymond Milner Batson

Ray Batson was born in Lincoln, Nebraska, on 8 July 1931. His lifelong passion for flying surfaced early. In high school he worked at Stapleton Airfield in Denver refueling planes in order to pay for flying lessons, and obtained his private pilot’s license. After a year of study at Regis College, he enlisted in the United States Air Force and served a two-year tour of duty as...

Don Wilhelms
Date Published: September 19, 2018
Status: Completed

Don Wilhelms

With his geologic mapping of the Moon, Don Wilhelms set the methods and standards for planetary mapping. He is author of Geologic History of the Moon (1987, USGS Professional Paper 1348) and To a Rocky Moon, A Geologist's History of Lunar Exploration (1993, University of Arizona Press), as well as many other science publications and planetary geologic maps. Don helped train...

Harrison Schmitt during Ceremony
Date Published: September 19, 2018
Status: Completed

Harrison H. Schmitt

Jack Schmitt joined the Astrogeology team as a geologist at the Flagstaff Science Center in 1964, having recently earned a doctorate degree from Harvard University. In addition to assisting in the geologic mapping of the Moon, he led the Lunar Field Geological Methods project. When NASA announced a special recruitment for scientist-astronauts in late 1964, Schmitt...

Gene Shoemaker
Date Published: September 17, 2018
Status: Completed

Gene Shoemaker - Founder of Astrogeology

He once said he considered himself a scientific historian, one whose mission in life is to relate geologic and planetary events in a perspective manner. A modest statement coming from a legend of a man who almost single-handedly created planetary science as a discipline distinct from astronomy. He brought together geologic principles to the mapping of planets, resulting in...

Moon Engineer Special Study Generalized Photogeologic Map
Date Published: September 17, 2018
Status: Completed

1961: USGS Astrogeology's First Published Map

The race to the moon began on August 17, 1958, and the Soviet Union won. This isn't the opening line of an alternate history story; rather, it is an acknowledgment that more than one moon race took place. The first, with the goal of launching a small automated spacecraft to the moon, began with the liftoff of the Able 1 lunar orbiter, a 38-kilogram U.S. Air Force (USAF) probe...

RPIF Logo
Date Published: September 12, 2018
Status: Active

Regional Planetary Image Facility (RPIF)

The NASA/USGS Astrogeology Regional Planetary Information Facility (RPIF), located in the Shoemaker Building (Building 6) on the USGS Campus in Flagstaff, Arizona, is a facility of the USGS Astrogeology Science Center. The Astro RPIF houses in 3000 square feet of climate-controlled space more than 100,000 lunar and planetary maps, a reference library, an ever-growing photo and...

Contacts: Kay Garsnett
Lorem ipsum dolor sit amet
Date Published: August 5, 2018
Status: Active

Global Hyperspectral Imaging Spectroscopy of Agricultural-Crops & Vegetation (GHISA)

This webpage showcases the key research advances made in hyperspectral remote sensing of agricultural crops and vegetation over the last 50 years. There are three focus areas:

Zebra Mussels on rock
Date Published: July 23, 2018
Status: Active

BOR environmental DNA sampling for invasive mussels at USGS gages

As part of an ongoing project funded by the Bureau of Reclamation and lead by the Idaho Water Sciences Center (IDWSC) and Northern Rocky Mountain Research Center (NOROCK), the Upper Midwest Environmental Sciences Center (UMESC) will analyze environmental DNA samples collected at gage stations directly downstream of multiple reservoirs throughout the Columbia River Basin. The goal of this...

Contacts: Jon Amberg
Image: Demonstration Wetland at Henderson, Nevada
Date Published: July 5, 2018
Status: Active

Assessment of Infiltration and Recharge due to Wetland Restoration in a Semiarid Ecosystem- Laura M. Norman

This intern will work with an exciting team of scientists to develop novel approaches to assess wetland restoration. Methods include documenting baseline conditions and monitoring site evolution, hydrologic modeling, using shallow piezometers to estimate recharge and storage change, tracking streambed water exchanges using heat as a tracer, and estimating percolation using electrical...

Screenshot of the Land Treatment Exploration Tool with proposed treatment drawn on screen.
Date Published: May 10, 2018
Status: Active

Land Treatment Exploration Tool

The Land Treatment ExplorationTool provides a practical resource for managers who are planning restoration and rehabilitation actions on public lands. The tool generates a variety of spatial products while being user friendly for all levels of GIS expertise, even to those with little or no experience.

Filter Total Items: 126
Year Published: 1995

Results of ground-water, surface-water, and water-chemistry monitoring, Black Mesa area, northeastern Arizona, 1994

The Black Mesa monitoring program is designed to document long-term effects of ground-water pumping from the N aquifer by industrial and municipal users. The N aquifer is the major source of water in the 5,400-square-mile Black Mesa area, and the ground water occurs under confined and unconfined conditions. Monitoring activities include continuous...

Littin, G.R.; Monroe, S.A.
Results of ground-water, surface-water, and water-chemistry monitoring, Black Mesa area, northeastern Arizona, 1994; 1995; WRI; 95-4238; Littin, G. R.; Monroe, S. A.

Year Published: 1995

Sand-storage changes in the Colorado River downstream from the Paria and Little Colorado Rivers, June 1992 to February 1994

Graf, J.B.; Marlow, J.E.; Fisk, G.G.; Jansen, S.M.
Sand-storage changes in the Colorado River downstream from the Paria and Little Colorado Rivers, June 1992 to February 1994; 1995; OFR; 95-446; Graf, J. B.; Marlow, J. E.; Fisk, G. G.; Jansen, S. M.

Year Published: 1995

Results of ground-water, surface-water, and water-quality monitoring, Black Mesa area, northeastern Arizona, 1992-93

Littin, G.R.; Monroe, S.A.
Results of ground-water, surface-water, and water-quality monitoring, Black Mesa area, northeastern Arizona, 1992-93; 1995; WRI; 95-4156; Littin, G. R.; Monroe, S. A.

Year Published: 1995

Hydrogeology and deformation of sandbars in response to fluctuations in flow of the Colorado River in the Grand Canyon, Arizona

Rill erosion, slumping, and fissuring develop on seepage faces of many sandbars along the Colorado River in the Grand Canyon. These processes, observed at low river stage, are a response to residual head gradients in the sandbars caused by the river-stage fluctuation. Three sandbars were instrumented with sensors for continual monitoring of pore...

Carpenter, M.C.; Carruth, R.L.; Fink, J.B.; Boling, J.K.; Cluer, B.L.
Hydrogeology and deformation of sandbars in response to fluctuations in flow of the Colorado River in the Grand Canyon, Arizona; 1995; WRI; 95-4010; Carpenter, M. C.; Carruth, R. L.; Fink. J. B.; Boling, J. K.; Cluer, B. L.

Year Published: 1995

Selected chemical characteristics and acute toxicity of urban stormwater, streamflow, and bed material, Maricopa County, Arizona

The chemistry and toxicity of urban stormwater, streamflow, and bed material in the Phoenix, Arizona, area were characterized to determine if urban stormwater could degrade the quality of streams. Toxic phases of stormwater (oil and grease, suspended solids, dissolved metals, and dissolved organics) were identified to aid water-quality managers...

Lopes, Thomas J.; Fossum, Kenneth D.
Selected chemical characteristics and acute toxicity of urban stormwater, streamflow, and bed material, Maricopa County, Arizona; 1995; WRI; 95-4074; Lopes, T. J.; Fossum, K. D.

Year Published: 1995

Statistical summary of selected physical, chemical, and microbial characteristics, and estimates of constituent loads in urban stormwater, Maricopa County, Arizona

Stormwater and streamflow in the Phoenix, Arizona, area were monitored to determine the physical, chemical, and microbial characteristics of storm- water from areas having different land uses; to describe the characteristics of streamflow in a river that receives urban stormwater; and to estimate constituent loads in stormwater from unmonitored...

Lopes, T.J.; Fossum, K.D.; Phillips, J.V.; Monical, J.E.
Statistical summary of selected physical, chemical, and microbial characteristics, and estimates of constituent loads in urban stormwater, Maricopa County, Arizona; 1995; WRI; 94-4240; Lopes, T. J.; Fossum, K. D.; Phillips, J. V.; Monical, J. E.

Year Published: 1995

Monitoring Channel Sand Storage in the Colorado River in Grand Canyon

Jansen, Samuel M.D.; Graf, Julia B.; Marlow, Jonathan E.; Fisk, Gregory G.
Monitoring Channel Sand Storage in the Colorado River in Grand Canyon; 1995; FS; 120-95; Jansen, Samuel M. D.; Graf, Julia B.; Marlow Jonathan E.; Fisk, Gregory G.

Year Published: 1995

Water-level fluctuations, water temperatures, and tilts in sandbars -6.5R, 43.1L, and 172.3L, Grand Canyon, Arizona, 1990-93

Rill erosion, slumping, and fissuring develop on seepage faces of many sandbars along the Colorado River in the Grand Canyon at low river stage. Three sandbars were instrumented with sensors for continual monitoring of stage, pore pressure, ground-water temperature, and tilt to determine the relation between ground-water flow and sandbar...

Carpenter, Michael C.; Crosswhite, Jason A.; Carruth, R.L.
Water-level fluctuations, water temperatures, and tilts in sandbars -6.5R, 43.1L, and 172.3L, Grand Canyon, Arizona, 1990-93; 1995; OFR; 94-485; Carpenter, Michael C.; Crosswhite, Jason A.; Carruth, R. L.

Year Published: 1995

Measurements of aquifer-storage change and specific yield using gravity surveys

Pinal Creek is an intermittent stream that drains a 200-square-mile alluvial basin in central Arizona. Large changes in water levels and aquifer storage occur in an alluvial aquifer near the stream in response to periodic recharge and ground-water withdrawals. Outflow components of the ground-water budget and hydraulic properties of the alluvium...

Pool, D.R.; Eychaner, J.H.

Year Published: 1995

Measured and predicted velocity and longitudinal dispersion at steady and unsteady flow, Colorado River, Glen Canyon Dam to lake mead

The effect of unsteadiness or dam releases on velocity and longitudinal dispersion of flow was evaluated by injecting a fluorescent dye into the Colorado River below Glen Canyon Dam and sampling for dye concentration at selected sites downstream. In Glen Canyon, average flow velocity through the study reach increased directly with discharge, but...

Graf, J.B.
Measured and predicted velocity and longitudinal dispersion at steady and unsteady flow, Colorado River, Glen Canyon Dam to lake mead; 1995; Article; Journal; Water Resources Bulletin; Graf, J. B.

Year Published: 1995

Cross-sectional area of the shallow alluvial aquifer at selected sites along the upper Santa Cruz River, Arizona

Carruth, Rob
Cross-sectional area of the shallow alluvial aquifer at selected sites along the upper Santa Cruz River, Arizona; 1995; WRI; 95-4112; Carruth, Robert L.

Year Published: 1994

Accounting for Consumptive Use of Lower Colorado River Water in Arizona, California, Nevada, and Utah

In the Colorado River valley between the east end of Lake Mead and the international boundary with Mexico (see figure), the river is the principal source of water for agricultural, domestic, municipal, industrial, hydroelectric-power generation, and recreational purposes. Water is stored in surface reservoirs and in the river aquifer---permeable...

Owen-Joyce, Sandra J.; Wilson, Richard P.
Accounting for Consumptive Use of Lower Colorado River Water in Arizona, California, Nevada, and Utah; 1994; FS; 074-94; Owen-Joyce, Sandra J.; Wilson, Richard P.

Filter Total Items: 192
August 14, 2014

Measuring Groundwater with Steel Tape

This video demonstrates how to measure water levels in wells using a graduated steel tape.

August 14, 2014

Measuring Groundwater with Electric Tape

This video demonstrates how to measure water levels in wells using an electric tape.

August 13, 2014

Redington Stream Flow

This video shows the process of taking a stream flow measurement using a bridge crane and current meter.

https://pubs.usgs.gov/fs/2018/3032/fs20183032.pdf
April 1, 2014

Changes in Earth's Gravity Reveal Changes in Groundwater Storage

Did you know that changes in the amount of water in aquifers cause small changes in Earth’s gravitational field? When the amount of groundwater in an aquifer changes, either by recharge or by discharge to surface water or wells, the gravitational acceleration at the land surface also changes. In this photo, USGS Research Hydrologist Jeff Kennedy is making measurements of

...
Attribution: Water Resources
March 19, 2014

Minute 319 Pulse Flow

The minute 319 pulse flow experiment flood in the Lower Colorado River Delta allows scientists the opportunity to study many different aspects of a flood. With the help of CSAs we had the opportunity to actually back calculate the roughness value at the times that our technicians in Yuma measured discharge.

November 30, 2013

Gravity Recharge Monitoring

Time-lapse Microgravity Monitoring of Artificial Recharge
This video shows a series of clips collected in 2013 during the SAVSARP gravity experiment.

October 7, 2013

Animal Interactions at Wind Energy Facilities – Gray Fox

There were two documented gray fox visits at the burrows, making them the third most documented predator. Gray foxes are implicated predators of various life stages of desert tortoises, but it is difficult to catch them in the act. In this case, a gray fox approaches a burrow, and thoroughly investigates the burrow mouth. The fox develops an arch in its tail (slight

...
October 5, 2013

Animal Interactions at Wind Energy Facilities – Western Spotted Skunk

There was one documented skunk event captured on camera - the least documented predator. Here, a western spotted skunk is thoroughly investigating the burrow of one of the marked female tortoises in the study population. Western spotted skunks are known predators of turtle eggs. The skunk investigated the area within the burrow for a full minute before it appears outside

...
August 7, 2013

TESNAR Program: CSAs

TESNAR stands for the Technical training in Support of Native American Relations, and is a program run by the USGS to foster cooperation between tribes and the USGS by providing them with the tools and training to manage their tribal resources, such as water. As shown here, training in the Continuous Slope Area Method can help tribes a great deal, by providing data when

...
Image: Burned Area Near Yarnell, Arizona
July 19, 2013

Burned Area Near Yarnell, Arizona

Burned area within the Yarnell Hill Fire near Yarnell Arizona.

June 30, 2013

Animal Interactions at Wind Energy Facilities – Bobcat

In this video, a bobcat approached a desert tortoise (a marked female in the study population) that was sleeping on the apron of her burrow. Bobcats are known predators of various life stages of the desert tortoise. In this case, the bobcat bent down to sniff the tortoise, and then touched its paw to the top of the tortoise's shell. The tortoise then moved into an "all-

...
June 26, 2013

Earth.Science.Art Project

This collaborative project pairs artists from California's Central Coast and San Francisco Bay Area with scientists from the Santa Cruz-based U.S. Geological Survey's Pacific Marine and Coastal Science Center. The artist create work inspired by scientific research.

Filter Total Items: 177
USGS
September 18, 2014

Scientists and technicians from the U.S. Geological Survey will be conducting field studies of flood flows from the recent heavy rains resulting from Tropical Storm Odile today.

USGS
September 8, 2014

Scientists and technicians from the U.S. Geological Survey will be conducting field studies of high water flows from the recent heavy rains in Phoenix along the Salt River today. 

USGS
August 21, 2014

U.S. Geological Survey field crews are measuring flooding after heavy rainfall occurred in northern portions of Maricopa County, Arizona.  

USGS science for a changing world logo
June 10, 2014

Increasing the density -- the amount per square mile -- of natural gas drilling sites and associated ponds in the Cypress Creek basin is not expected to have a substantial impact on the amount of sediment or water entering Brewer Lake, according to a new U.S. Geological Survey report.

USGS
May 13, 2014

Stronger storms, rising seas, and flooding are placing hundreds of millions people at risk around the world, and big part of the solution to decrease those risks is just off shore. A new study finds that coral reefs reduce the wave energy that would otherwise impact coastlines by 97 percent.

Image:  Desert Perchlorate Field Work
April 3, 2014

Newly published research is the first to characterize the distribution and interactions of natural perchlorate in a terrestrial ecosystem. The study results are important in assessing risks associated with ecological and human health and with potential movement of natural perchlorate contamination into groundwater.

USGS
March 27, 2014

As a large pulse of water is being released into the former delta of the Colorado River along the U.S.-Mexico border, U.S. Geological Survey scientists are studying the effects on the environment as part of a historic, bi-national collaborative effort.

global image mosaic presenting a single view of Jupiter's moon Ganymede
February 12, 2014

More than 400 years after its discovery by Galileo, the largest moon in the Solar System – Ganymede – has finally claimed a spot on the map. 

USGS
December 19, 2013

Secretary of the Interior Sally Jewell announced today that Interior’s Southwest Climate Science Center is awarding nearly $1.2 million to universities and other partners for research to guide managers of parks, refuges and other cultural and natural resources in planning how to help species and ecosystems adapt to climate change.

USGS
December 13, 2013

Drought conditions are linked to declines in a protected desert tortoise population in part of the Sonoran Desert, according to a U.S. Geological Survey study. 

USGS
August 8, 2013

Scientists are surveying a potential debris flow area within the Yarnell Hill burn zone, as part of a cooperative study by the U.S. Geological Survey, the Arizona Geological Survey, and the Arizona Department of Emergency Management. 

USGS
July 29, 2013

The Santa Cruz River watershed, located on the Arizona-Sonora portion of the U.S.-Mexico border, depends for its perennial flow on an international treatment plant that treats wastewater on both sides of the border before discharging it into the river in Arizona.

Filter Total Items: 83