United States of America

Filter Total Items: 3,070
Date published: February 19, 2020
Status: Active

Arsenic variability in water-supply wells

The USGS, in cooperation with the Town of Seabrook, New Hampshire and a private well owner, is assessing the variability of arsenic over multiple time scales. A network of three wells is being used to monitor changes in arsenic, arsenic species, a host of other chemical constituents, and the distribution of ages of groundwater entering the wells. The wells—one domestic bedrock aquifer well,...

Date published: February 18, 2020
Status: Active

Yellow River near Oak Grove, IN

"Super" gages provide real-time, continuous water-quality information for rivers and streams at selected Ohio, Kentucky, and Indiana U.S. Geological Survey (USGS) streamgages. By combining discrete and continuous data in statistical models, USGS scientists can continuously estimate constituents that are difficult to measure in real-time. For example, in-stream turbidity sensors are often used...

Date published: February 18, 2020
Status: Active

Evaluation of groundwater resources of the Anza-Terwilliger area, Anza, California

Groundwater is the sole source for water use to the rural community and two Native American tribes in the Cahuilla Valley and Terwilliger Valley groundwater basins, which are located approximately 35 miles southwest of Palm Springs, California. The characteristics and sustainable yield of the basins are not well understood and are threatened by increasing water use and potential changes in...

Date published: February 14, 2020
Status: Active

Climate impacts to Arctic coasts

The Arctic region is warming faster than anywhere else in the nation. Understanding the rates and causes of coastal change in Alaska is needed to identify and mitigate hazards that might affect people and animals that call Alaska home.

Date published: February 13, 2020
Status: Active

Avian Malaria Genomic Research Project

Habitat destruction, invasive plants, non-native predators and competitors, and introduced diseases have decimated the diverse, endemic native forest bird community of Hawai‘i. In particular, avian malaria (Plasmodium relictum), which is transmitted by the introduced Culex quinquefasciatus mosquito, has caused dramatic declines and extinctions in many native birds. Fortunately, Cx....

Date published: February 13, 2020
Status: Active

Hydrologic Assessment of the Blackfeet Reservation, Montana

The Blackfeet Nation seeks an increased scientific understanding of the water resources within the Blackfeet Reservation of northwestern Montana. Hydrologic information is needed in order to make informed water management decisions as the Blackfeet Nation moves forward with implementation of the Blackfeet Water Rights Compact as new water-use projects are initiated and as the Blackfeet...

Date published: February 12, 2020
Status: Active

Characterizing Hydrologic and Geomorphic Processes in a Spring-Fed, Cold-Desert Headwater Stream

The role of natural versus human-influenced factors in sedimentation of Littlefield Creek, a small, high-desert creek in south-central Wyoming is currently unknown. In general, there is little empirical information about both hydrologic and geomorphic processes (together described as hydrogeomorphic) in these types of streams.  To develop a better understanding of  hydrogeomorphic processes,...

Date published: February 11, 2020
Status: Completed

Fish Chat and Slam November 2019

Fifty fish biologists from 15 organizations participated in a three-day Fish Chat and Slam event in South Florida on November 5-7, 2019.

Date published: February 11, 2020
Status: Active

Yellow River at Knox, IN

"Super" gages provide real-time, continuous water-quality information for rivers and streams at selected Ohio, Kentucky, and Indiana U.S. Geological Survey (USGS) streamgages. By combining discrete and continuous data in statistical models, USGS scientists can continuously estimate constituents that are difficult to measure in real-time. For example, in-stream turbidity sensors are often used...

Contacts: Jeffrey Woods
Date published: February 11, 2020
Status: Active

Maumee River at Antwerp, OH

Water-quality “super” gages (also known as “sentry” gages) provide real-time, continuous measurements of the physical and chemical characteristics of stream water at or near selected U.S. Geological Survey (USGS) streamgages in Ohio, Kentucky, and Indiana. A super gage includes streamflow and water-quality instrumentation and representative stream sample collection for laboratory analysis....

Date published: February 10, 2020
Status: Active

NPPSD Sampling Effort Maps

Maps showing the extent of sampling done and entered into the North Pacific Pelagic Seabird Database (NPPSD).

Date published: February 10, 2020
Status: Active

Indiana Harbor Canal at East Chicago, IN

Water-quality “super” gages (also known as “sentry” gages) provide real-time, continuous measurements of the physical and chemical characteristics of stream water at or near selected U.S. Geological Survey (USGS) streamgages in Ohio, Kentucky, and Indiana. A super gage includes streamflow and water-quality instrumentation and representative stream sample collection for laboratory analysis....