(L to R) USGS's Brian McCallum, Joel Groten, and Molly Wood inside Itaipu Binational dam and standing on the original Paraná River bottom on the border of Brazil and Paraguay.
Brian McCallum
Brian McCallum is the National Streamgage Networks Coordinator for the USGS Water Resources Mission Area.
Science and Products
Filter Total Items: 16
Hurricane Monitoring Information for Georgia, North Carolina, and South Carolina
Hurricane Information for Georgia, North Carolina, and South Carolina.
Federal Priority Streamgages (FPS)
Federal Priority Streamgages (FPS) are automated stations that monitor water conditions in streams and rivers throughout the country. Originally established in 1999, these are important for meeting specific long-term needs of the Nation. The FPS Network was recently re-prioritized which resulted in size of the network increasing to nearly 12,400 locations.
National Water Monitoring Network
To manage our water resources effectively, we need to understand how much water is available and its usefulness. The USGS monitors the nation’s water resources through various national observing networks that use a range of technologies and methods to assess real-time water conditions and predict future changes in water availability for human and ecological uses.
USGS National Water Quality Network
Understanding the quality of U.S. streams, rivers, and groundwater requires consistent data collection and analysis over decades for proper context of current conditions. The USGS collects nationally standardized data and information as part of the National Water Quality Network (NWQN). The NQWN is made up of sites across the Nation where USGS scientists regularly measure water-quality conditions.
USGS National Streamgaging Network
As of October 2024, the USGS Groundwater and Streamflow Information Program supports the collection and (or) delivery of both streamflow and water-level information at 8,705 sites and water-level information alone at 3,460 additional sites. The data are served online—most in near real-time—to meet many diverse needs including the protection of life, property, the environment, and our economy.
Centennial Streamgages
Centennial Streamgages are USGS streamgages that have been in operation for more than 100 years.
USGS Streamgages By the Numbers
Get the facts and figures about the USGS Streamgaging Network, one of the largest streamgaging enterprises in the world!
Louisiana Public Awareness, Hydrologic Studies, and Hydrologic Data
Louisiana Public Awareness, Hydrologic Studies, and Hydrologic Data
Brazilian Agencies Partner With USGS On Water Programs
The USGS International Programs Office has intermittently collaborated with Brazil's Geological Survey (CPRM) since the early 1970's. With the creation of the Brazilian National Water Agency (ANA), Brazil's hydrologic monitoring network has taken on a higher socioeconomic importance. The collaboration agreements between USGS and ANA/CPRM have strengthened the Brazilian streamgaging network as well...
SAWSC Monitoring of Hydrologic Hazards
A major element of the USGS mission is the documentation of the extent and magnitude of extreme hydrologic events, like floods and droughts. The South Atlantic Water Science Center is a leader in monitoring extreme water conditions, from droughts and falling groundwater levels to floods and storm-tide surges to water-quality problems.
Georgia Geologic Survey - Joint USGS and GGS Publications
The South Atlantic Water Science Center - Georgia Office cooperates with the Georgia Geologic Survey (GGS) in many hydrologic projects. A number of joint publications have been published over the years.
Hydroacoustic Applications: Technological Advancements in the Streamgaging Network
In the mid-1990s, a new technology emerged in the field of inland streamflow monitoring. The South Atlantic Water Science Center is making great use of the acoustic Doppler current profiler (ADCP). It was originally developed for oceanographic work, but was adapted for inland streamflow measurements. This instrument is transforming the U.S. Geological Survey (USGS) streamgaging program.
USGS employees inside Itaipu Binational Dam on Parana River bottom
(L to R) USGS's Brian McCallum, Joel Groten, and Molly Wood inside Itaipu Binational dam and standing on the original Paraná River bottom on the border of Brazil and Paraguay.
Monitoring Suspended Sediment and Flow along the Mississippi River: Episode 1
In this video segment, Physical Scientists from the U.S. Geological Survey (USGS) Lower Mississippi Gulf Water Science Center (LMGWSC) give an overview of USGS monitoring efforts along the Lower Mississippi River. General sampling logistics and monitoring frequencies are also shown.
In this video segment, Physical Scientists from the U.S. Geological Survey (USGS) Lower Mississippi Gulf Water Science Center (LMGWSC) give an overview of USGS monitoring efforts along the Lower Mississippi River. General sampling logistics and monitoring frequencies are also shown.
Science and Products
Filter Total Items: 16
Hurricane Monitoring Information for Georgia, North Carolina, and South Carolina
Hurricane Information for Georgia, North Carolina, and South Carolina.
Federal Priority Streamgages (FPS)
Federal Priority Streamgages (FPS) are automated stations that monitor water conditions in streams and rivers throughout the country. Originally established in 1999, these are important for meeting specific long-term needs of the Nation. The FPS Network was recently re-prioritized which resulted in size of the network increasing to nearly 12,400 locations.
National Water Monitoring Network
To manage our water resources effectively, we need to understand how much water is available and its usefulness. The USGS monitors the nation’s water resources through various national observing networks that use a range of technologies and methods to assess real-time water conditions and predict future changes in water availability for human and ecological uses.
USGS National Water Quality Network
Understanding the quality of U.S. streams, rivers, and groundwater requires consistent data collection and analysis over decades for proper context of current conditions. The USGS collects nationally standardized data and information as part of the National Water Quality Network (NWQN). The NQWN is made up of sites across the Nation where USGS scientists regularly measure water-quality conditions.
USGS National Streamgaging Network
As of October 2024, the USGS Groundwater and Streamflow Information Program supports the collection and (or) delivery of both streamflow and water-level information at 8,705 sites and water-level information alone at 3,460 additional sites. The data are served online—most in near real-time—to meet many diverse needs including the protection of life, property, the environment, and our economy.
Centennial Streamgages
Centennial Streamgages are USGS streamgages that have been in operation for more than 100 years.
USGS Streamgages By the Numbers
Get the facts and figures about the USGS Streamgaging Network, one of the largest streamgaging enterprises in the world!
Louisiana Public Awareness, Hydrologic Studies, and Hydrologic Data
Louisiana Public Awareness, Hydrologic Studies, and Hydrologic Data
Brazilian Agencies Partner With USGS On Water Programs
The USGS International Programs Office has intermittently collaborated with Brazil's Geological Survey (CPRM) since the early 1970's. With the creation of the Brazilian National Water Agency (ANA), Brazil's hydrologic monitoring network has taken on a higher socioeconomic importance. The collaboration agreements between USGS and ANA/CPRM have strengthened the Brazilian streamgaging network as well...
SAWSC Monitoring of Hydrologic Hazards
A major element of the USGS mission is the documentation of the extent and magnitude of extreme hydrologic events, like floods and droughts. The South Atlantic Water Science Center is a leader in monitoring extreme water conditions, from droughts and falling groundwater levels to floods and storm-tide surges to water-quality problems.
Georgia Geologic Survey - Joint USGS and GGS Publications
The South Atlantic Water Science Center - Georgia Office cooperates with the Georgia Geologic Survey (GGS) in many hydrologic projects. A number of joint publications have been published over the years.
Hydroacoustic Applications: Technological Advancements in the Streamgaging Network
In the mid-1990s, a new technology emerged in the field of inland streamflow monitoring. The South Atlantic Water Science Center is making great use of the acoustic Doppler current profiler (ADCP). It was originally developed for oceanographic work, but was adapted for inland streamflow measurements. This instrument is transforming the U.S. Geological Survey (USGS) streamgaging program.
USGS employees inside Itaipu Binational Dam on Parana River bottom
(L to R) USGS's Brian McCallum, Joel Groten, and Molly Wood inside Itaipu Binational dam and standing on the original Paraná River bottom on the border of Brazil and Paraguay.
(L to R) USGS's Brian McCallum, Joel Groten, and Molly Wood inside Itaipu Binational dam and standing on the original Paraná River bottom on the border of Brazil and Paraguay.
Monitoring Suspended Sediment and Flow along the Mississippi River: Episode 1
In this video segment, Physical Scientists from the U.S. Geological Survey (USGS) Lower Mississippi Gulf Water Science Center (LMGWSC) give an overview of USGS monitoring efforts along the Lower Mississippi River. General sampling logistics and monitoring frequencies are also shown.
In this video segment, Physical Scientists from the U.S. Geological Survey (USGS) Lower Mississippi Gulf Water Science Center (LMGWSC) give an overview of USGS monitoring efforts along the Lower Mississippi River. General sampling logistics and monitoring frequencies are also shown.