USGS Arizona (@USGSAZ) / X

USGS Arizona

2,510 posts

USGS Arizona

@USGSAZ

USGS science from the southwest US & beyond. Follow us for science news, new publications, and USGS-related activities. Tweets do not = endorsement.

Southwest U.S.

Joined June 2014

USGS Arizona
@USGSAZ
Jul 4
Happy Fourth of July! Did you know that Arizona is home to a unique population of desert-nesting bald eagles? While many people associate these iconic birds with the dense forests of the Pacific Northwest or Alaska, they also thrive along Arizona's desert rivers and reservoirs.
USGS Arizona
@USGSAZ
Jun 30
Happy Asteroid Day!
USGS Astrogeology
@USGS_AstroGeo
Jun 30
Ready to rock your world? Asteroid Day lands June 30! ☄️ Asteroid Day is a day of global awareness of asteroids and planetary defense, held annually on the anniversary of the Tunguska impact event in 1908. USGS Astrogeology plays a critical role in planetary defense and
USGS Arizona
@USGSAZ
Jun 30
On the morning of December 23, 1889, photographer Franklin Nims stepped onto a gravel bar at a slight bend in the Colorado River and took this photograph. Nims was the photographer for the Stanton Expedition, a survey led by railroad engineer Robert Brewster Stanton to determine
USGS Arizona reposted
USGS Water Resources
@USGS_Water
Jun 30
40 million people. 7 states. 1 river. From John Wesley Powell’s first expedition to today’s satellite telemetry, USGS science on the Colorado River is as grand as the Grand Canyon. USGS plays a vital role in monitoring the Colorado River, providing reliable scientific data
USGS Arizona reposted
USGS Water Resources
@USGS_Water
Jun 30
Great American Waterway Day 2: The Colorado River! 🇺🇸 From the Rockies to the Gulf of California, the Colorado River is a lifeline for nearly 40 million people across the U.S. and Mexico. It supports major cities, farms, ecosystems, recreation, and hydropower across it’s
USGS Arizona
@USGSAZ
Jun 25
Before there were photo filters, there was just... waiting a century to take the exact same picture. By standing in the exact footsteps of photographers from the early 1900s, researchers can document exactly how landscapes change over time. The Southwest Repeat Photography
USGS Arizona
@USGSAZ
Jun 23
How do you build a solar facility without disturbing soil and creating dusty conditions? 💨☀️ Building solar facilities in the desert requires installing panels and infrastructure, but the way that construction is implemented can affect how much wind erosion occurs. Dust
USGS Arizona
@USGSAZ
Jun 22
Check out this new fact sheet on USGS science at Lees Ferry from the Arizona Water Science Center! 🌊🙌📏
USGS Water Resources
@USGS_Water
Jun 19
100+ years of water data. One iconic location 📍📈 Located at the gateway to the Grand Canyon, the Colorado River at Lees Ferry is where recreation meets resource management and vital aquatic science. In 1921, the USGS established a streamgage at this location to monitor the
USGS Arizona
@USGSAZ
Jun 18
How can public scientific research better serve the precise needs of local communities and decision-makers? Research designed for a generic or non-specific management group frequently misses the desk of the people who need it most. Tailoring data to a single or even hypothetical
USGS Arizona
@USGSAZ
Jun 16
Invasive grasses are changing fire patterns and how we manage them in the Intermountain West, USA. Researchers Sarah Costanzo and Seth Munson conducted a systematic review and meta-analysis of 204 scientific articles published between 1985 and 2023. The study focused on six
USGS Arizona reposted
USGS Water Resources
@USGS_Water
Jun 16
Thinking of trading your screen time for stream time? Don’t forget to "pack" your data! 🚣🌊 The USGS operates a network of more than 13,000 streamgages nationwide. Whether you’re looking for the perfect rapids or a peaceful float, our real-time data tells you if conditions
USGS Arizona
@USGSAZ
Jun 12
The USGS Flagstaff Science Campus in northern Arizona was honored to host USGS Director Dr. Ned Mamula for two days in early June. The visiting group included the Senior Advisor to the Director, the Acting Deputy Director, Southwest Regional Directors, and the Acting Chief of
USGS Arizona
@USGSAZ
Jun 11
USGS scientists have mapped a continuous profile of the Colorado River in Grand Canyon’s riverbed and water surface, and it was long overdue. In 1923, surveyors first mapped the water surface profile of the Colorado River. This was before the construction of Hoover Dam (1935)
USGS Arizona
@USGSAZ
Jun 9
The Sonoran and Mojave Deserts are incredibly diverse, serving as habitat for migratory birds and wildlife. USGS researchers and our partners combined satellite data, decadal plant growth cycles, and extensive ground verifications to map nearly 148 million acres at a sharp