Unified Interior Regions

Arizona

The Southwest Region includes California, Nevada, and Arizona. The Regional Office, headquartered in Sacramento, provides Center oversight and support, facilitates internal and external collaborations, and works to further USGS strategic science directions.

States L2 Landing Page Tabs

Filter Total Items: 142
Date published: September 26, 2018
Status: Active

Meteor Crater Drill Cores

While inventorying the drill cuttings from Meteor Crater, we identified 31 boxes of drill core from the crater. Unfortunately, there was little or no documentation for these cores and we initially did not know the drill hole locations or any of the ancillary details. With the assistance of Dr. David Kring, we eventually determined the origin of all of the drill cores. We found...

Date published: September 26, 2018
Status: Active

Meteor Crater Sample Collection

Meteor Crater is a 180 m deep, 1.2 km diameter bowl-shaped impact crater in Northern Arizona, and has long been a terrestrial analog site for planetary exploration. During the 1960’s, Eugene Shoemaker trained NASA astronauts at the crater to prepare for the Apollo missions to the Moon. The Meteor Crater Sample Collection consists of geologic samples from the Meteor Crater...

Date published: September 26, 2018
Status: Active

Lunar Calibration ROLO (Robotic Lunar Observatory)

The USGS lunar calibration program provides radiometric calibration and sensor stability monitoring for space-based remote sensing instruments using the Moon as a reference source. This is a unique on-orbit calibration technique for solar reflectance wavelengths that requires no special flight hardware, only that the instrument must view the Moon. The unmatched stability of the lunar...

Date published: September 24, 2018
Status: Active

MRCTR GIS Lab

The USGS Astrogeology Mapping, Remote-sensing, Cartography, Technology, and Research (MRCTR, pronounced "Mercator") GIS Lab provides web-based resources aimed at the planetary research community. The lab supports Geographic Information Systems (GIS) graphical, statistical, and spatial tools for analyses of planetary data, including the distribution of planetary GIS tutorials,...

Date published: September 21, 2018
Status: Completed

RPIF Online Exhibits

The NASA/USGS RPIF is dedicated to providing online exhibits of archived materials. The RPIF houses a large collection of historical artifacts in relation to space exploration, map-making, and planetary geology.

Contacts: Amy Zink
Date published: September 21, 2018
Status: Active

PDS Cartography and Imaging Sciences Node at USGS

The USGS Astrogeology Science Center is host to the lead science component of the Cartography and Imaging Sciences Node (IMG) of the NASA Planetary Data System (PDS). A partner facility at the Jet Propulsion Laboratory (JPL) provides engineering support and technical management for the IMG. The IMG is a PDS science discipline node that manages an archive of more than 1500 TB...

Date published: September 21, 2018
Status: Active

USGS/NASA Planetary Photogrammetry Guest Facility

-- ON HOLD -- Training Opportunity -- ON HOLD --

Photogrammetric Processing of Planetary Stereo Imagery using ISIS and SOCET GXP® TBD

 

Please note that we no longer have any scheduled SOCET SET® trainings at this time. We are currently transitioning to BAE's latest photogrammtry suite called SOCET...

Date published: September 19, 2018
Status: Completed

RPIF Pioneers of Astrogeology

Some of the pioneers in planetary geologic research include Eugene Shoemaker, Harrison "Jack" Schmitt, Don Wilhelms, Raymond Batson, David Roddy, Gordon Swann and Baerbel Lucchitta. Click on the images below to learn about each person and their contributions to Astrogeology.

Contacts: Amy Zink
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...

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...

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...

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...

Filter Total Items: 134
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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.

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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.

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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.

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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.

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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.

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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.

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Year Published: 1995

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

No abstract available. 

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.

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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.

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Year Published: 1994

Summary of ground-water conditions in Arizona, 1987-90

Annual ground-water withdrawals in Arizona were 2.9, 3.3, 3.6, and 3.4 million acre-feet for calendar years 1987. 1988, 1989, and 1990. The average annual ground-water withdrawal for Arizona from 1980-89 was 3.7 million acre-feet, which was the lowest average annual withdrawal for any decade since the 1940' s. Since 1947, annual ground-water...

Anning, D.W.; Duet, N.R.
Summary of ground-water conditions in Arizona, 1987-90; 1994; OFR; 94-476; Anning, D. W.; Duet, N. R.

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Year Published: 1994

Method to identify wells that yield water that will be replaced by Colorado River water in Arizona, California, Nevada, and Utah

Accounting for the use of Colorado River water is required by the U.S. Supreme Court decree, 1964, Arizona v. California. Water pumped from wells on the flood plain and from certain wells on alluvial slopes outside the flood plain is presumed to be river water and is accounted for as Colorado River water. A method was developed to identify wells...

Wilson, Richard P.; Owen-Joyce, Sandra J.
Method to identify wells that yield water that will be replaced by Colorado River water in Arizona, California, Nevada, and Utah; 1994; WRI; 94-4005; Wilson, Richard P.; Owen-Joyce, Sandra J.

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Year Published: 1993

Determining the source of water pumped from wells along the lower Colorado River

Wilson, Richard P.; Owen-Joyce, Sandra J.
Determining the source of water pumped from wells along the lower Colorado River; 1993; OFR; 93-405; Wilson, Richard P.; Owen-Joyce, Sandra J.

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Year Published: 1993

Results of ground-water, surface-water, and water-quality monitoring, Black Mesa area, northeastern Arizona, 1991-92

Littin, G.R.
Results of ground-water, surface-water, and water-quality monitoring, Black Mesa area, northeastern Arizona, 1991-92; 1993; WRI; 93-4111; Littin, G. R.

Filter Total Items: 253
Unmanned Aerial System takes images in Arizona
December 31, 2017

Unmanned Aerial System in Flight

Small Unmanned Aerial System (UAS) collecting digital photos to create digital elevation models. UAS are an increasingly important tool for monitoring, assessing, and conducting targeted scientific research for the nation.

December 17, 2017

USGS Astrogeology Geologic Map GIS Template

Review of all elements included in the GIS template provided to NASA-funded mappers producing USGS SIM-series planetary geologic maps.

November 30, 2017

Tour of the Planetary Geologic Mapping Python Toolbox

A tour of the Planetary Geologic Mapping Python toolbox, a suite of GIS tools from the Astrogeology Science Center.
 

Sonoran desert scene, complete with prickly pear, saguaro, and cholla cactus species.
October 31, 2017

Sonoran Desert Cactus Guild

The iconic Sonoran Desert is home to many species of cactus, vascular plants, and wildlife, including the giant saguaro, cholla, and prickley pear cacti seen here. Plants and animals have adapted to living in such a harsh dry environment. For example, the plants in this photo have grown up in the shade of one another, and survived due to protection from the hot sun. The

...
October 20, 2017

Introduction to GIS Data for ArcMap 10.1 and Higher

An introduction to GIS data using ArcMap 10.1 and higher; intended for planetary geologic mappers. 
 

View of the lush green San Rafael grasslands of southern Arizona and northern Mexico, framed by a cloudy blue sky.
August 31, 2017

The Sonoran desert has grasslands, too.

The San Rafael grasslands are a diverse ecosystem in southern Arizona along the U.S./Mexico border region, a part of the Madrean Archipelago ecoregion. The USGS RAMPS program conducts collaborative

...
July 31, 2017

Advances in Streamgaging | Reach-Scale Monitoring Experiment (1 of 2)

In this first installment of a two part series, The Arizona Water Science Center has developed new stream gaging methods that would measure flood flows remotely. However, they have to verify the accuracy of these techniques, so they designed an experiment in partnership with the USDA Southwest Watershed Research Center at the Walnut Gulch Experimental Watershed that

July 31, 2017

Historic Context of the Continuous Slope Area Method

The Arizona Water Science Center details the history and development of the Continuous Slope-Area Method. Learn about the people and events that began these new advances in the field of stream gaging. 

Music Artist: Glenn Jones, “Bergen County Farewell”. CC License. Music provided by www.FreeMusicArchive.com

Two researchers aligning a 2 meter by 2 meter PVC square for an experimental restoration plot within a fenced area.
July 31, 2017

Setting up experimental restoration plots.

Field crew install a Restoration Field Trial Network garden in the rangelands of Northern Arizona. Each garden in the network is examining seedlings and seeds in conjunction with restoration treatments to better

...
July 30, 2017

A Record of Change: Science and Elder Observations on the Navajo N.

A Record of Change—Science and Elder Observations on the Navajo Nation is a 25-minute documentary about collaborative studies using conventional physical sciences, combined with tribal elder observations to show that local knowledge and conventional science partnerships can effectively document ecosystem change and determine the resulting challenges to livelihoods. 

Photo of seeding experiment to improve restoration outcomes in the Southwest.
July 17, 2017

Seeding experiment to improve restoration outcomes in the Southwest.

USGS ecologists Molly McCormick (left) and Katie Laushman (right) conducting a seeding experiment that is a part of RAMPS, a new USGS-led initiative to improve restoration outcomes in the Southwest. 

...
Blowing dust in a fallowed agricultural field in central Arizona.
June 30, 2017

Bare Ground = Blowing Dust

Across the desert Southwest, ground void of plant material is prone to soil erosoin and dust storms. In this fallowed agricultural field, we see that a spring breeze can carry away fertile top soil and create air quality concerns. USGS RAMPS defines causes of environmental hazards created by degraded land, and creates collaborative solutions to reduce these types of risks

...
Filter Total Items: 202
USGS
October 5, 2015

US Geological Survey scientists are presenting on numerous topics related to climate change, drought and resource management at the 13th Biennial Conference of Science and Management on the Colorado Plateau & Southwest Region. Below are some of the newest science topics that the USGS will present.

imaging from Mars
September 2, 2015

A new analysis of the largest known deposit of carbonate minerals on Mars helps limit the range of possible answers about how and why Mars changed from a world with watery environments billions of years ago to the arid Red Planet of today.

Map of the Glen Canyon Dam study area
August 19, 2015

Although the Grand Canyon segment of the Colorado River features one of the most remote ecosystems in the United States, it is not immune to exposure from toxic chemicals such as mercury according to newly published research in Environmental Toxicology and Chemistry.

USGS
May 5, 2015

Water availability in the middle San Pedro watershed in southeast Arizona is strongly dependent on climate and water use, according to a new water resource assessment by the U.S. Geological Survey, in cooperation with the Arizona Department of Water Resources.

Image: Female Golden Eagle with GPS-GSM Transmitter
April 8, 2015

Golden eagles in the Mojave Desert travel farther, to different areas, and at different times of the year than previously understood, according to research by the U.S. Geological Survey and partners from other federal agencies, academia and the private sector. 

collage of scientists conducting science related to each mission are
March 3, 2015

While the earth contains enough potash to meet the increased global demand for crop production and U.S. supplies are likely secure, some regions lack potash deposits needed for optimal food crop yields. According to a recent USGS global assessment of potash resources, the costs of importing potash long distances can limit its use and imports are subject to supply disruptions.

USGS science for a changing world logo
February 10, 2015

A new U.S. Geological Survey study shows how plants’ vulnerability to drought varies across the landscape; factors such as plant structure and soil type where the plant is growing can either make them more vulnerable or protect them from declines.

New (2014) Black Canyon City, Arizona US Topo quadrangle
January 7, 2015

Newly released US Topo maps for Arizona now feature mountain bike trails, segments of the Arizona National Scenic Trail and Public Land Survey System data. Several of the 1,880 new US Topo quadrangles for the state now display these selected new features along with other improved data layers.

USGS
December 18, 2014

Secretary of the Interior Sally Jewell announced today that Interior’s Southwest Climate Science Center is awarding nearly a million dollars 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.

Filter Total Items: 84