Mathieu Marineau
Mathieu Marineau - Associate Director for Studies - Washington Water Science Center.
Science and Products
Filter Total Items: 54
Surrogate Monitoring of Sediment Transport using Hydrophones along the San Joaquin River and Tributaries
Traditional methods for measuring coarse bedload sediment transport by discrete physical sampling tend to be labor intensive and expensive ( Gray and others, 2010). As such, bedload samples often are collected too infrequently to capture the temporal variability inherent in transport rates, which can vary significantly, sometimes by a factor of ten or more, over time periods of several minutes to...
San Antonio Reservoir Bathymetric Survey and Sedimentation Study
Over time, the flow of water into the San Antonio Reservoir has caused the build-up of sediment, decreasing storage capacity. Since water storage is a crucial issue in California, up-to-date information on the reservoir is needed. To accomplish this, the San Francisco Public Utilities Commission approached the USGS California Water Science Center to conduct a bathymetric (depth) survey and other...
Implementing New Acoustic Monitoring Techniques in the Trinity River
Accurate river-sediment data is fundamental to planning and managing river restoration efforts on the Trinity River, and throughout the world’s waterways. The USGS has developed a “hydrophone” that enables scientists to listen to sediment particles as they move along the riverbed in order to inexpensively and reliably record near-continuous sediment-bedload-transport data. For this study...
Sumas River Sediment Load
The Issue: A large, clay-rich active landslide on the western flank of Sumas Mountain in Whatcom County, Washington, is a significant source of sediment to Swift Creek and the salmon-bearing Sumas River. The landslide contains naturally occurring serpentinite that weathers to chrysotile asbestos and elevated levels of metals. The asbestos load in water as well as deposits along the banks and flood...
Elwha River Sediment Monitoring
The Issue: The Elwha River Restoration Project is the largest single restoration action planned for the Puget Sound region in the foreseeable future and is a high priority for the Puget Sound Partnership. Beginning in 2011, two large dams on the Elwha River in Clallam County, Washington, will be removed by the National Park Service over about two and a half years. During removal, sediment...
Central Columbia Plateau - Yakima River Basin
The issue: Agriculture and irrigation are major forces in Central Washington. Intensive land and water management practices may lead to water quality issues. In the Central Columbia Plateau and Yakima River Basin (CCYK), water quality issues include high nutrient loading resulting in eutrophication, elevated concentrations of water-soluble pesticides, and elevated concentrations of organochlorine...
Hanford
Located on 586 square miles in southeastern Washington, the U.S. Department of Energy's (USDOE) Hanford Site was established during World War II as part of the Manhattan Project to produce plutonium for nuclear weapons. As a result of plutonium processing and operation of nine nuclear reactors, large volumes of liquid wastes have been generated and discharged to the ground. The USDOE operates a...
Puget Sound Basin NAWQA
The Puget Sound Basin (PUGT) study unit of the National Water Quality Assessment (NAWQA) program encompasses a 13,700-square-mile area that drains to Puget Sound and adjacent marine waters. Included in this region are all or part of 13 counties in western Washington, as well as the headwaters of the Skagit River and part of the Nooksack River in British Columbia, Canada. The Puget Sound Basin...
Glaciers and Snowpack
Glaciers, snow, and ice sheets are important components of the Earth's water and climate. They respond to and indicate changes in climate, as well as exerting an influence on global and regional climate. They also have an effect on water resources, serving as natural reservoirs. Measuring changes in the size and volume of glaciers and snowpacks provides one direct way of knowing what kind of...
Navy Investigations and Technical Oversight
The U.S. Navy is conducting environmental work at various sites on Navy installations in Washington, Alaska, and other northwestern states under mandates of the CERCLA and RCRA environmental regulations. This work is generally performed by private firms under contract to the Navy, commonly focusing on small areas near specific waste-disposal or spill sites. To assist the Navy with the...
Recharge and frozen ground in the PNW
The Issue: Seasonally frozen ground occurs over approximately one-third of the contiguous United States, and the extent and duration of frozen ground have been decreasing as a result of global warming. In semi-arid regions such as the Columbia Plateau and Snake River Plain in the Pacific Northwest, nearly all natural recharge occurs between October and March when intermittent or seasonal frozen...
Nooksack River Streamflow and Network Analysis
The Lummi Nation is partner to six USGS streamflow-gaging stations in the Nooksack River basin that measure streamflow in small streams. The Lummi Nation uses data from these stations to help manage its natural resources and has requested that the USGS analyze the available data record. As a result, the USGS is using streamflow data collected in and near the Nooksack River basin to develop...
Science and Products
Filter Total Items: 54
Surrogate Monitoring of Sediment Transport using Hydrophones along the San Joaquin River and Tributaries
Traditional methods for measuring coarse bedload sediment transport by discrete physical sampling tend to be labor intensive and expensive ( Gray and others, 2010). As such, bedload samples often are collected too infrequently to capture the temporal variability inherent in transport rates, which can vary significantly, sometimes by a factor of ten or more, over time periods of several minutes to...
San Antonio Reservoir Bathymetric Survey and Sedimentation Study
Over time, the flow of water into the San Antonio Reservoir has caused the build-up of sediment, decreasing storage capacity. Since water storage is a crucial issue in California, up-to-date information on the reservoir is needed. To accomplish this, the San Francisco Public Utilities Commission approached the USGS California Water Science Center to conduct a bathymetric (depth) survey and other...
Implementing New Acoustic Monitoring Techniques in the Trinity River
Accurate river-sediment data is fundamental to planning and managing river restoration efforts on the Trinity River, and throughout the world’s waterways. The USGS has developed a “hydrophone” that enables scientists to listen to sediment particles as they move along the riverbed in order to inexpensively and reliably record near-continuous sediment-bedload-transport data. For this study...
Sumas River Sediment Load
The Issue: A large, clay-rich active landslide on the western flank of Sumas Mountain in Whatcom County, Washington, is a significant source of sediment to Swift Creek and the salmon-bearing Sumas River. The landslide contains naturally occurring serpentinite that weathers to chrysotile asbestos and elevated levels of metals. The asbestos load in water as well as deposits along the banks and flood...
Elwha River Sediment Monitoring
The Issue: The Elwha River Restoration Project is the largest single restoration action planned for the Puget Sound region in the foreseeable future and is a high priority for the Puget Sound Partnership. Beginning in 2011, two large dams on the Elwha River in Clallam County, Washington, will be removed by the National Park Service over about two and a half years. During removal, sediment...
Central Columbia Plateau - Yakima River Basin
The issue: Agriculture and irrigation are major forces in Central Washington. Intensive land and water management practices may lead to water quality issues. In the Central Columbia Plateau and Yakima River Basin (CCYK), water quality issues include high nutrient loading resulting in eutrophication, elevated concentrations of water-soluble pesticides, and elevated concentrations of organochlorine...
Hanford
Located on 586 square miles in southeastern Washington, the U.S. Department of Energy's (USDOE) Hanford Site was established during World War II as part of the Manhattan Project to produce plutonium for nuclear weapons. As a result of plutonium processing and operation of nine nuclear reactors, large volumes of liquid wastes have been generated and discharged to the ground. The USDOE operates a...
Puget Sound Basin NAWQA
The Puget Sound Basin (PUGT) study unit of the National Water Quality Assessment (NAWQA) program encompasses a 13,700-square-mile area that drains to Puget Sound and adjacent marine waters. Included in this region are all or part of 13 counties in western Washington, as well as the headwaters of the Skagit River and part of the Nooksack River in British Columbia, Canada. The Puget Sound Basin...
Glaciers and Snowpack
Glaciers, snow, and ice sheets are important components of the Earth's water and climate. They respond to and indicate changes in climate, as well as exerting an influence on global and regional climate. They also have an effect on water resources, serving as natural reservoirs. Measuring changes in the size and volume of glaciers and snowpacks provides one direct way of knowing what kind of...
Navy Investigations and Technical Oversight
The U.S. Navy is conducting environmental work at various sites on Navy installations in Washington, Alaska, and other northwestern states under mandates of the CERCLA and RCRA environmental regulations. This work is generally performed by private firms under contract to the Navy, commonly focusing on small areas near specific waste-disposal or spill sites. To assist the Navy with the...
Recharge and frozen ground in the PNW
The Issue: Seasonally frozen ground occurs over approximately one-third of the contiguous United States, and the extent and duration of frozen ground have been decreasing as a result of global warming. In semi-arid regions such as the Columbia Plateau and Snake River Plain in the Pacific Northwest, nearly all natural recharge occurs between October and March when intermittent or seasonal frozen...
Nooksack River Streamflow and Network Analysis
The Lummi Nation is partner to six USGS streamflow-gaging stations in the Nooksack River basin that measure streamflow in small streams. The Lummi Nation uses data from these stations to help manage its natural resources and has requested that the USGS analyze the available data record. As a result, the USGS is using streamflow data collected in and near the Nooksack River basin to develop...