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: 140
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...

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...

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...

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...

Filter Total Items: 127
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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.

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Year Published: 1993

Streamflow and sediment-transport data, Colorado River and three tributaries in Grand Canyon, Arizona, 1983 and 1985-86

The U.S. Geological Survey collected streamflow and sediment-transport data at 5 streamflow-gaging stations on the Colorado River between Glen Canyon Dam and Lake Mead as a part of an interagency environmental study. The data were collected for about 6 mo in 1983 and about 4 mo in 1985-86; data also were collected at 3 sites on tributary streams...

Garrett, W.B.; van de Vanter, E.K.; Graf, J.B.
Streamflow and sediment-transport data, Colorado River and three tributaries in Grand Canyon, Arizona, 1983 and 1985-86; 1993; OFR; 93-174; Garrett, W. B.; van de Vanter, E. K.; Graf, J. B.

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Year Published: 1992

Accounting System for Water Use by Vegetation in the Lower Colorado River Valley

The Colorado River is the principal source of water in the valley of the Colorado River between Hoover Dam and the international boundary with Mexico (fig. 1). Agricultural, domestic, municipal, industrial, hydroelectric-power genera-tion, and recreation are the primary uses of river water in the valley. Most of the consumptive use of water from...

Owen-Joyce, Sandra J.
Accounting System for Water Use by Vegetation in the Lower Colorado River Valley; 1992; OFR; 92-83; Owen-Joyce, Sandra J.

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Year Published: 1992

Results of ground-water, surface-water, and water-quality monitoring, Black Mesa area, northeastern Arizona; 1989-90

Sottilare, J.P.; Bills, D.J.; Brown, J.G.
Results of ground-water, surface-water, and water-quality monitoring, Black Mesa area, northeastern Arizona; 1989-90; 1992; WRI; 92-4008; Sottilare, J. P.; Bills, D. J.; Brown, J. G.

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Year Published: 1992

Results of ground-water, surface-water, and water-quality monitoring, Black Mesa area, northeastern Arizona; 1990-91

Littin, G.R.
Results of ground-water, surface-water, and water-quality monitoring, Black Mesa area, northeastern Arizona; 1990-91; 1992; WRI; 92-4045; Littin, G. R.

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Year Published: 1992

Summary of ground-water conditions in Arizona 1985-86

No abstract available. 

Wilson, Richard P.
Summary of ground-water conditions in Arizona 1985-86; 1992; WRI; 90-4179; Wilson, Richard P.

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Year Published: 1991

Low-flow sediment transport in the Colorado River

In support of beach-stability research, bedload and suspended sediment were measured during a steady flow of 5,880 ft3/s and receding flows from 12,100 to 5,660 ft3/s in the Colorado River above National Canyon, near Supai, Arizona, October 7-12, 1989. During steady flows, 75 percent of the mean total-sediment discharge of 128 t/d was in...

Gray, John R.; Webb, Robert H.; Hyndman, David W.
Low-flow sediment transport in the Colorado River; 1991; Article; Conference publication; Proceedings of the Fifth Federal Interagency Sedimentation Conference; Gray, John R.; Webb, Robert H.; Hyndman, David W.

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Year Published: 1991

Lower Colorado River Accounting System (LCRAS) computer program and documentation

von Allworden, B. K.; Owen-Joyce, Sandra J.; Sandoval, John D.; Raymond, Lee H.
Lower Colorado River Accounting System (LCRAS) computer program and documentation; 1991; OFR; 91-179; von Allworden, B. K.; Owen-Joyce, Sandra J.; Sandoval, John D.; Raymond, Lee H.

Filter Total Items: 240
An extremely rare Mojave River western pond turtle was recently observed in the Mojave Desert.
May 4, 2017

An extremely rare Mojave River western pond turtle

An extremely rare Mojave River western pond turtle was recently observed by USGS scientists and staff from The Living Desert Zoo and Gardens in the Mojave Desert. Turtles of this population have rarely been seen since the late 1990s.

A few tiny leaves on a branch
August 24, 2016

New tamarisk leaves re-grow after tamarisk leaf beetle defoliation

Tamarisk leaves regrow following defoliation by the biological control agent, tamarisk leaf beetle (Diorhabda spp.).

A mostly dead bush with one living branch
August 22, 2016

Tamarisk re-grows new leaves after tamarisk leaf beetle defoliation

Tamarisk can re-grow new leaves after being defoliated by the biocontrol agent tamarisk leaf beetle (Diorhabda spp.).

mostly dead bush re-sprouting after fire
August 22, 2016

Nonnative tamarisk is fire resistant

Nonnative tamarisk is resistant to wildfire, in part due to its abilty to resprout from the its roots.

Dead and living trees near a river
August 22, 2016

Defoliated nonnative tamarisk with native cottonwood trees

Nonnative tamarisk can form mixed stands with native trees, such as cottonwoods, and other nonnative trees, such as Russian olive. 

Figure 1 for Southwestern Willow Flycatcher Habitat Viewer webpage
August 8, 2016

Figure 1 for Southwestern Willow Flycatcher Habitat Viewer webpage

Figure 1. Maps showing location of the project area and the 35 U.S. Fish and Wildlife Service Southwestern Willow Flycatcher management unit boundaries, designated critical-habitat reaches, and waterbodies considered by the satellite model

...
Figure 2 for Southwestern Willow Flycatcher Habitat Viewer webpage
August 8, 2016

Figure 2 for Southwestern Willow Flycatcher Habitat Viewer webpage

Figure 2. Map showing area of predicted flycatcher breeding habitat (averaged across 2013–15) at all elevations in 6,521 U.S. Geological Survey 7.5-minute quadrangles, Southwestern United States. Only areas within a prescribed distance of

...
Figure 3 for Southwestern Willow Flycatcher Habitat Viewer webpage
August 8, 2016

Figure 3 for Southwestern Willow Flycatcher Habitat Viewer webpage

Figure 3. Map showing relative changes in predicted flycatcher habitat, as determined from a satellite model at a 40-percent probability threshold, Southwestern United States, 2013–15.

Figure 5 for Southwestern Willow Flycatcher Habitat Viewer webpage
August 8, 2016

Figure 5 for Southwestern Willow Flycatcher Habitat Viewer webpage

Figure 5. Map showing changes in predicted flycatcher habitat along the lower Virgin River, Nevada and Arizona, 2010–2015, as determined from a satellite model at a 40-percent probability threshold.

Figure 6 for Southwestern Willow Flycatcher Habitat Viewer webpage
August 8, 2016

Figure 6 for Southwestern Willow Flycatcher Habitat Viewer webpage

Figure 6. Map showing changes in predicted flycatcher habitat along the upper Gila River after conducting a tamarisk leaf beetle-impact simulation. The upper Gila River was divided into nine zones in order to quantify changes. A satellite

...
June 3, 2016

Particle Tracking

The Arizona Water Science Center discusses the use of a new method, called particle tracking, that will revolutionize the way USGS obtains stream flow data.

May 5, 2016

First Global Topographic Map of Mercury

An animation of the USGS topographic map of Mercury created using images from NASA’s MESSENGER spacecraft.

Filter Total Items: 192
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.

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.

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. 

Filter Total Items: 84