Hannah M Hamilton, Ph.D. (Former Employee)
Science and Products
Ecosystems A to Z
Did you know that the USGS Ecosystems Mission Area is the biological research arm of the U.S. Department of the Interior?
USGS Ecosystems Mission Area scientists are leading research and monitoring efforts across the country and in some cases around the globe. Studying topics from amphibians to zoonotic...
A is for Amphibian
On April 26th, 2021, Department of Interior Secretary Deb Haaland declared May 2 - 8, 2021 as Amphibain Week! This is in In recognition of the vital importance of amphibians (frogs, toads, and salamanders) to the Nation’s public and private lands.
Did...
Whooping Cranes
Whooping crane project at Patuxent National Wildlife health center, with interview of Dr. John French, discussing health, exercises, diet and training of these birds once on the brink of extinction.
Great Outdoors Month: Exploring the Waters
Now that June is upon us, it’s Great Outdoors Month! So why not stream some Nature instead of Netflix? Speaking of streams, maybe you’re thinking of going kayaking, canoeing or tubing on a nearby river. Just go with the flow!
Larger than average hypoxic area expected for Gulf of Mexico
High spring rainfall, river discharge, nutrient loads into Gulf major contributors to size
New USGS online tools for watershed managers
SPARROW models, tools, and maps of streamflow, nutrients, and sediment for streams in five major U.S. regions
Phosphorus and River Water Quality
Investigating the effects of historical phosphorus on current river water quality.
In the Field with Kate Scharer
What’s a day in the life of a research geologist like?
Yellowstone's migrating bison manipulate springtime green-up
On a typical June day in Yellowstone National Park, it’s not unusual to see hundreds of bison grazing in the Lamar Valley. The herds appear to aimlessly move back and forth through meadows threaded by a winding river, just passive figures in an idyllic scene. But as it turns out, that’s far from the full picture.
Next Generation Water Observing System Partnership Announcement
The U.S. Geological Survey is seeking information from industry, academia, nonprofits, and research institutions on innovative technologies that should be considered for inclusion in the USGS Next Generation Water Observing System (NGWOS).
People of the Sage
Meet one of the People of the Sage, Dr. Anna Chalfoun, Assistant USGS Cooperative Research Unit Leader and Associate Professor at the University of Wyoming. Don’t let the titles intimidate you, Anna Chalfoun loves all types of hockey, loves horses—all animals really! Even snakes.
USGS Estimates 214 trillion Cubic Feet of Natural Gas in Appalachian Basin Formations
The Marcellus Shale and Point Pleasant-Utica Shale formations of the Appalachian Basin contain an estimated mean of 214 trillion cubic feet of undiscovered, technically recoverable continuous resources of natural gas, according to new USGS assessments.
USGS Seeks National Ground-Water Monitoring Network Proposals for 2020
The U.S. Geological Survey will award up to $2 million in cooperative agreements to support participation in the National Ground-Water Monitoring Network (NGWMN).
Fast Fire Facts from USGS
You’ve got questions about USGS fire science. We’ve got answers.
Expect the Unexpected: Geology and Maya Warfare
An unexpected thing happened on the way to publishing a geology research paper recently.