Unified Interior Regions

Arizona

States L2 Landing Page Tabs

Filter Total Items: 136
Glass of water
Date Published: July 8, 2018
Status: Active

AzWSC Capabilities: Arizona Water Use

Since 1950, the AzWSC has estimated water use by county at 5-year intervals, publishing the results in a series of reports since 1981. Water demand is met by pumping groundwater from aquifers or by conveying surface water to users through a system of reservoirs and canals. Because of the importance of water to Arizona’s communities and future economic development, the AzWSC works cooperatively...

Contacts: Saeid Tadayon
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.

Photo of Bird Bands in a Variety of Sizes and Types
Date Published: May 1, 2018
Status: Active

Bird Banding Laboratory

The Bird Banding Laboratory (BBL) is an integrated scientific program established in 1920 supporting the collection, archiving, management and dissemination of information from banded and marked birds in North America.  This information is used to monitor the status and trends of resident and migratory bird populations. Because birds are good indicators of the health of the environment, the...

Photo of AzWSC scientists working on Lake Powell
Date Published: March 19, 2018
Status: Active

AzWSC Capabilities: Reservoir and Lake Monitoring and Assessment

The Arizona Water Science Center (AzWSC) has specialized expertise in monitoring, measuring, and collecting reservoir and lake water and sediment for a variety of phycial and chemical properties.

San Bernardino Arizona
Date Published: March 19, 2018
Status: Active

Ciénega San Bernardino - Wetland Restoration

Desert marshes, or ciénega, are extremely biodiverse habitats imperiled by anthropogenic demands for water and changing climates. Given their widespread loss and increased recognition as important wildlife habitat, remarkably little is known about restoration techniques.

Contacts: Laura M Norman
Patagonia Arizona
Date Published: March 19, 2018
Status: Active

Patagonia - Gully Restoration

The Deep Dirt Farm Institute (DDFI), founded and directed by Kate Tirion, comprises 34 acres with deep agricultural soils, bisected by an ephemeral stream/wildlife corridor. The farm lies within a folded topography of hills, small sheltered valleys & broad meadow.  A deep gully has diverted flows and needs repair...

Contacts: Laura M Norman
Photograph of gabion dam in Nogales, Sonora
Date Published: March 19, 2018
Status: Active

Nogales, Sonora - Flood Control

Flooding in Ambos Nogales often exceeds the capacity of the channel and adjacent land areas, endangering people and property. Goals of RDS are to diminish impacts of flooding and sedimentation on wastewater infrastructure thereby reducing the incidence of sanitary sewer overflows. We are studying the Nogales Wash to prevent future flood disasters and RDS are being installed in tributaries. We...

Contacts: Laura M Norman
A USGS scientist deploys an absolute gravity meter.
Date Published: March 18, 2018
Status: Active

AzWSC Capabilities: Hydrologic Gravity Monitoring

Gravity is a measurement of mass: the greater an object's mass, the stronger its gravitational pull. By measuring changes in gravity over time, inferences can be made about changes in mass. In hydrology, this can be used to study water in the subsurface. If the amount of groundwater in a particular area increases over time, through processes such as infiltration of rainfall or aquifer recharge...

WERC Ants collect seeds/floret
Date Published: October 30, 2017
Status: Active

Process-based Approaches for Ecological Restoration of Degraded Drylands

Surface disturbances ranging from military training, recreation, energy exploration and development, and wildfires impact a large majority of federal lands in the western US, but the ecological and economic impacts are poorly understood. Explore this webpage to learn how Dr. Lesley DeFalco and her research team are currently evaluating and refining conventional approaches for post-fire...

Contacts: Lesley DeFalco
Plants grown in a greenhouse
Date Published: October 30, 2017
Status: Active

Native Plant Materials for Ecological Restoration of Degraded Drylands

There is a growing consensus among resource managers to use native plant materials for ecological restoration of degraded drylands. Some plant species may be suitable for re-introduction across broad environmental gradients. Other species may fail under narrower conditions, or their re-introduction may have genetic consequences for local ecotypes, particularly when adapting to future climate...

Contacts: Lesley DeFalco
Eureka Valley. Desert Landscape photo
Date Published: October 30, 2017
Status: Active

Conservation of Rare, Sensitive, and At-risk Desert Plant Species

The Mojave Desert is among the hottest and driest of the North American drylands, but in spite of these extreme conditions, and in part because of them, a diverse flora exists. This diversity of rare, endemic, and endangered species is threatened by the complex interaction between fluctuating climate and human-mediated disturbances. USGS studies have identified rare species “hotspots” for...

Contacts: Lesley DeFalco
Filter Total Items: 126
Publication Thumbnail
Year Published: 1990

National water summary 1987: Hydrologic events and water supply and use

Water use in the United States, as measured by freshwater withdrawals in 1985, averaged 338,000 Mgal/d (million gallons per day), which is enough water to cover the 48 conterminous States to a depth of about 2.4 inches. Only 92,300 Mgal/d, or 27.3 percent of the water withdrawn, was consumptive use and thus lost to immediate further use; the...

Carr, Jerry E.; Chase, Edith B.; Paulson, Richard W.; Moody, David W.
Attribution: Water, Central Midwest Water Science Center, Dakota Water Science Center, , , Kansas Water Science Center, Minnesota Water Science Center, Pennsylvania Water Science Center, Texas Water Science Center, Utah Water Science Center, , Upper Midwest Environmental Sciences Center, Upper Midwest Water Science Center, Water Resources, Water Availability and Use Science Program, , , Region 4: Mississippi Basin, Region 6: Arkansas-Rio Grande-Texas-Gulf, Region 1: North Atlantic-Appalachian, Region 7: Upper Colorado Basin, Alabama, Alaska, Arizona, Arkansas, California, Colorado, Connecticut, Delaware, Florida, Georgia, Hawaii, Idaho, Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana, Maine, Maryland, Massachusetts, Michigan, Minnesota, Mississippi, Missouri, Montana, Nebraska, Nevada, New Hampshire, New Jersey, New Mexico, New York, North Carolina, North Dakota, Ohio, Oklahoma, Oregon, Pennsylvania, Puerto Rico, Rhode Island, South Carolina, South Dakota, Tennessee, Texas, U.S. Virgin Islands, Utah, Vermont, Virginia, Washington, West Virginia, Wisconsin, Wyoming, United States of America
National water summary 1987: hydrologic events and water supply and use; 1990; WSP; 2350; Carr, Jerry E.; Chase, Edith B.; Paulson, Richard W.; Moody, David W.

Publication Thumbnail
Year Published: 1990

Aggradation and degradation of alluvial sand deposits, 1965 to 1986, Colorado River, Grand Canyon National Park, Arizona

Alluvial sand deposits along the Colorado River in Grand Canyon National Park are used as campsites and are substrate for vegetation. The largest and most numerous of these deposits are formed in zones of recirculating current that are created downstream from where the channel is constricted by debris fans at tributary mouths. Alluvial sand...

Schmidt, John C.; Graf, Julia B.
Aggradation and degradation of alluvial sand deposits, 1965 to 1986, Colorado River, Grand Canyon National Park, Arizona; 1990; PP; 1493; Schmidt, John C.; Graf, Julia B.

Publication Thumbnail
Year Published: 1990

Estimates of consumptive use and ground-water return flow and the effect of rising and sustained high river stage on the method of estimation in Cibola Valley, Arizona and California, 1983 and 1984

In Cibola Valley, Arizona, water is pumped from the Colorado River to irrigate crops and to maintain wildlife habitat. Unused water percolates to the water table and, as groundwater, moves downgradient into areas of phreatophytes, into a drainage ditch, out of the flood plain, and back to the river. In 1983 and 1984, groundwater return flow was...

Owen-Joyce, Sandra J.
Estimates of consumptive use and ground-water return flow and the effect of rising and sustained high river stage on the method of estimation in Cibola Valley, Arizona and California, 1983 and 1984; 1990; WRI; 89-4194; Owen-Joyce, Sandra J.

Publication Thumbnail
Year Published: 1990

Estimates of ground-water flow components for Lyman Lake, Apache County, Arizona

Bills, D.J.; Hjalmarson, H.W.; Robertson, F.N.
Estimates of ground-water flow components for Lyman Lake, Apache County, Arizona; 1990; WRI; 89-4151; Bills, D. J.; Hjalmarson, H. W.; Robertson, F. N.

Publication Thumbnail
Year Published: 1989

Evapotranspiration estimates using remote-sensing data, Parker and Palo Verde valleys, Arizona and California

In 1981 the U.S. Geological Survey established an experimental project to assess the possible and practical use of remote-sensing data to estimate evapotranspiration as an approximation of consumptive use of water in the lower Colorado River flood plain. The project area was in Parker Valley, Arizona. The approach selected was to measure the areas...

Raymond, Lee H.; Rezin, Kelly V.
Evapotranspiration estimates using remote-sensing data, Parker and Palo Verde valleys, Arizona and California; 1989; WSP; 2334; Raymond, Lee H.; Rezin, Kelly V.

Publication Thumbnail
Year Published: 1989

Progress report on the ground-water, surface-water, and quality-of-water monitoring program, Black Mesa Area, northeastern Arizona; 1988-89

The Black Mesa monitoring program in Arizona is designed to determine long-term effects on the water resources of the area resulting from withdrawals of groundwater from the N aquifer by the strip-mining operation of Peabody Coal Company. Withdrawals by Peabody Coal Company increased from 95 acre-ft in 1968 to 4 ,090 acre-ft in 1988. The N aquifer...

Hart, R.J.; Sottilare, J.P.
Progress report on the ground-water, surface-water, and quality-of-water monitoring program, Black Mesa Area, northeastern Arizona; 1988-89; 1989; OFR; 89-383; Hart, R. J.; Sottilare, J. P.

Publication Thumbnail
Year Published: 1989

Water Resources Data for Arizona, Water Year 1987

Wilson, R.P.; Garrett, W.B.
Water Resources Data for Arizona, Water Year 1987; 1989; WDR; AZ-87-1; Wilson, R. P.; Garrett, W. B.

Publication Thumbnail
Year Published: 1988

Aggradation and degradation of alluvial sand deposits, 1965 to 1986, Colorado River, Grand Canyon National Park, Arizona

High discharges occurring between 1983-1985 resulted in redistribution of sand stored in zones of recirculating current in the Colorado River in Grand Canyon National Park. Redistribution resulted in net loss in the number of reattachment deposits in narrow reaches and aggradation of some separation deposits. Separation deposits were more stable...

Schmidt, J.C.; Graf, J.B.
Aggradation and degradation of alluvial sand deposits, 1965 to 1986, Colorado River, Grand Canyon National Park, Arizona; 1988; OFR; 87-555; Schmidt, J. C.; Graf, J. B.

Publication Thumbnail
Year Published: 1988

Aggradation and degradation of alluvial sand deposits, 1965 to 1986, Colorado River, Grand Canyon National Park, Arizona; executive summary

High discharges that occurred in 1983-85 resulted in redistribution of sand stored in zones of recirculating current in the Colorado River in Grand Canyon National Park. Redistribution resulted in net loss in the number of reattachment deposits in narrow reaches and aggradation of some separation deposits. Separation deposits were more stable than...

Schmidt, J.C.; Graf, J.B.
Aggradation and degradation of alluvial sand deposits, 1965 to 1986, Colorado River, Grand Canyon National Park, Arizona; executive summary; 1988; OFR; 87-561; Schmidt, J. C.; Graf, J. B.

Publication Thumbnail
Year Published: 1988

Estimates of consumptive use and ground-water return flow using water budgets in Parker Valley, Arizona and California, 1981-84

Annual water budgets were used to estimate consumptive use by vegetation and groundwater return flow in Parker Valley, Arizona and California. Consumptive use by vegetation was estimated to be 482,800 acre-ft in 1981, 432,000 acre-ft in 1982, 413,500 acre-ft in 1983, and 420,900 acre-ft in 1984 on the Arizona side of the Colorado River, and 45,400...

Owen-Joyce, Sandra J.
Estimates of consumptive use and ground-water return flow using water budgets in Parker Valley, Arizona and California, 1981-84; 1988; WRI; 88-4063; Owen-Joyce, Sandra J.

Publication Thumbnail
Year Published: 1988

Progress report on the ground-water, surface-water, and quality- of-water monitoring program, Black Mesa Area, northeastern Arizona; 1987-88

The Black Mesa, Arizona, monitoring program is designed to determine long-term effects on the water resources of the area resulting from withdrawals of groundwater from the N aquifer by the strip-mining operation of Peabody Coal Company. Withdrawals by Peabody Coal Company increased from 95 acre-ft in 1968 to 3 ,832 acre-ft in 1987. The N aquifer...

Hart, R.J.; Sottilare, J.P.
Progress report on the ground-water, surface-water, and quality- of-water monitoring program, Black Mesa Area, northeastern Arizona; 1987-88; 1988; OFR; 88-467; Hart, R. J.; Sottilare, J. P.

Publication Thumbnail
Year Published: 1988

Simulation of five ground-water withdrawal projections for the Black Mesa area, Navajo and Hopi Indian Reservations, Arizona

The N Aquifer is the main source of water in the 5,400 sq mi Black Mesa area in the Navajo and Hopi Indian Reservations in northeastern Arizona. Water in the aquifer is under confined conditions in the central 3,300 sq mi of the area. Maximum saturated thickness is about 1,050 ft. Annual groundwater withdrawals from 1972 through 1986 averaged 5,...

Brown, J.G.; Eychaner, J.H.
Simulation of five ground-water withdrawal projections for the Black Mesa area, Navajo and Hopi Indian Reservations, Arizona; 1988; WRI; 88-4000; Brown, J. G.; Eychaner, J. H.

Filter Total Items: 204
December 11, 2012

Streamflow Gaging Station and Measurement on San Pedro River, AZ

USGS employee, Hanna Coy, talks about stream gauging.

A photo of a female mountain bluebird with mistletoe.
November 28, 2012

WERC Mountain Bluebird Eating Mistletoe Berry

A mountain bluebird eats a giant mistletoe berry in an ash tree in Sedona, Arizona (Oak Creek).  These bluebirds, and many other types of birds, rely on mistletoe berries for sustenance. As a result, they also help distribute the mistletoe seeds.

Image: Sandbar growth Grand Canyon following controlled flood
October 31, 2012

Sandbar growth Grand Canyon following controlled flood

Picture showing the increased size of the sandbar after the November 2012 controlled flood from the Glen Canyon Dam. This location is 65 miles downstream from Lees Ferry and the view is looking downstream. These and additional photographs depicting the results of the recent controlled floods can be viewed online.

 

Attribution: Natural Hazards
Image: Sandbar in Grand Canyon
September 30, 2012

Sandbar in Grand Canyon

Picture showing the size of the sandbar before the November 2012 controlled flood from the Glen Canyon Dam. This location is 65 miles downstream from Lees Ferry and the view is looking downstream. These and additional photographs depicting the results of the recent controlled floods can be viewed online.

 

September 30, 2012

USGS Fun

Working at the USGS can be fun. These student employees were given wonderful opportunities and made lasting friendships while working at the USGS.

September 12, 2012

Continuous Slope Area Method: Sycamore Creek, AZ

A video depicting the installation & operation of Continuous Slope Area gage and radar sensor, installed after the Sunflower Wild Fire on Sycamore Creek to measure streamflow from the Sunflower burned area. The streamflow data is used to provide flood warning to communities affected by runoff from the burned areas and for collecting streamflow data from areas that have

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Image: University of Arizona Sensors on Amazon Observation Tower
July 23, 2012

University of Arizona Sensors on Amazon Observation Tower

Sensors installed by University of Arizona scientists on this 213-foot (65-meter) tower near Santarém, Brazil are used by USGS scientists and U.S., Brazilian and Australian collaborators to improve understanding of how seasonal variations in climate affect photosynthesis and the uptake of atmospheric carbon dioxide by tropical forests.

Tapajós National Forest, near

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July 5, 2012

2012 Whitewater-Baldy Fire

USGS installed six early-flood-warning units—rain and stream gages—in the burned areas resulting from New Mexico's 2012 Whitewater-Baldy Fire. The gages transmit data via satellite to provide warnings to communities that may be affected by flooding.

October 2, 2011

Nat'l Comparison of USGS Compiled Irrigation Water Use Data

Highlights of the Scientific Investigations Report 2011-5166 which documents methods of irrigation and inventories irrigation data collected for the 2000 and 2005 U.S Geological Survey.

Valles Marineris on Mars
September 29, 2011

Valles Marineris on Mars

Mosaic of the Valles Marineris hemisphere of Mars projected into point perspective, a view similar to that which one would see from a spacecraft. The distance is 2500 kilometers from the surface of the planet, with the scale being .6km/pixel. The mosaic is composed of 102 Viking Orbiter images of Mars. The center of the scene (lat -8, long 78) shows the entire Valles

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August 10, 2011

Post-fire Flash Flood in Coronado National Memorial, Arizona

Video footage begins with dry streambed, and within the first 10 seconds a very dark, roiling, flow comes downstream toward the viewer. The rest of the video is footage of the flow going past, and into a culvert under a bridge. The video was recorded at the U.S. Geological Survey streamgage site near the Coronado National Memorial visitor center, in southern Arizona. The

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Filter Total Items: 186
USGS
October 19, 2012

FLAGSTAFF, Ariz. — Experts in volcano hazards and public safety have started a conversation about volcanoes in the southwestern United States, and how best to prepare for future activity. Prior to this meeting, emergency response planning for volcanic unrest in the region had received little attention by federal or state agencies.

USGS
July 23, 2012

Dr. Justin Hagerty, a research geologist with the U.S. Geological Survey, was named one of President Obama's recipients of the Presidential Early Career Award for Scientists and Engineers, the highest honor bestowed by the United States government on science and engineering professionals in the early stages of their independent research careers. 

USGS
July 5, 2012

TUCSON, Ariz. —On Wednesday, the U.S. Geological Survey finished installing six early-flood-warning units—rain and stream gages—in the burned areas of New Mexico’s Whitewater-Baldy Fire. The gages transmit data via satellite to the National Weather Service, which provides warnings to communities that may be affected by flooding. The gages can provide up to 60 minutes advanc

USGS
May 21, 2012

FLAGSTAFF, Ariz. — Laszlo Kestay has been named the new director of the U.S. Geological Survey Astrogeology Science Center, based in Flagstaff, Ariz. Kestay will lead the Astrogeology team in working closely with NASA and other planetary science organizations to develop and operate space missions exploring the Solar System, process and analyze data from many types of instruments...

USGS
February 21, 2012

FLAGSTAFF, Ariz. — Coconino National Forest’s Cinder Lake—a natural depression that has been used to store runoff from areas affected by the 2010 Schultz Fire—can store about 4,000 acre-feet of water, or enough to fill about 2,000 Olympic-sized swimming pools, according to a new U.S. Geological Survey report.

USGS
February 15, 2012

TUCSON, Ariz. – Climate change is likely to have strong effects on the abundance of dominant Sonoran Desert plant species, according to a study published recently in Global Change Biology.

USGS science for a changing world logo
December 19, 2011

The U.S. Geological Survey has named ecologist David Lytle the director of its ‪Southwest Biological Science Center, headquartered in Flagstaff.

“Rapid growth, changes in land use, and limited rainfall in the southwest region of the U.S. create challenges for natural resource management,” remarked USGS director Marcia McNutt. 

USGS science for a changing world logo
December 1, 2011

More than 280 million acre-feet of groundwater has been withdrawn from the Mississippi embayment aquifer system between 1870-2007, according to a new water modeling tool developed by the U.S. Geological Survey.

USGS science for a changing world logo
October 25, 2011

The sand dunes among which Navajos have eked out austere livings for generations are growing fast and becoming mobile as the climate changes, says U.S. Geological Survey geologist Dr. Margaret Hiza Redsteer, whose interviews with elders and historical research augment her decade-long research on Navajo Nation land.

USGS science for a changing world logo
October 21, 2011

FLAGSTAFF, Ariz. – The sand dunes among which Navajos have eked out austere livings for generations are growing fast and becoming mobile as the climate changes, says U.S. Geological Survey geologist Dr. Margaret Hiza Redsteer, whose interviews with elders and historical research augment her decade-long research on Navajo Nation land.

USGS science for a changing world logo
October 12, 2011

A dust storm that rolled across the Arizona desert on Tuesday, October 4, 2011, effectively blinded motorists, leading to a large string of motor vehicle crashes, multiple injuries, and at least one death. 

USGS science for a changing world logo
September 21, 2011

Over the last 70 years, groundwater in Arizona's alluvial basins was depleted by more than 74.5 million acre-feet, or approximately three times the maximum storage of Lake Powell.