Mathieu Marineau
Mathieu Marineau - Program Chief, Watershed Sciences - California Water Science Center.
Science and Products
Filter Total Items: 14
Bay-Delta Catchability Study
Addressing Catchability Bias in Fish Surveys San Francisco Bay and the Sacramento-San Joaquin Delta collectively make up the "Bay-Delta." In the scientific study of fish, "catchability" refers to the probability that a fish will be captured by a particular fishing gear or method. Catchability is a measure of how effectively a fishing gear or method can capture fish. "Catch data" refer to...
Santa Ana River Native Fish Study
Native Fish Population and Habitat Study, Santa Ana River, California The Santa Ana River, the largest river in southern California, flows through diverse landscapes, from the high desert to urban and suburban areas in Orange, Riverside, and San Bernardino Counties, stretching approximately 96 miles (154 kilometers) from its headwaters in the San Bernardino Mountains to its mouth at the Pacific...
Culturally Prescribed Fire
Culturally prescribed burning has been long practiced by the Yurok Tribe for a variety of reasons. This study explores using culturally prescribed fire as a land management tool for increasing the resiliency of streams and watersheds.
Incorporating Impacts of Wildfire and Vegetation Recovery into a Watershed Model of the Feather River Basin
Changes in vegetation in a large watershed due to wildfire can have a substantial influence on actual evapotranspiration rates and water availability. After a large, intense wildfire, evapotranspiration rates are expected to decrease. As vegetation reestablishes, the evapotranspiration rates increase over a period of years, back to pre-fire conditions. Watershed models typically use input layers...
Klamath Dam Removal Studies
The USGS is collecting continuous and discrete monitoring data to document baseline conditions and physical responses in downstream river reaches before, during, and after dam removal. These monitoring data will be integral for post-removal assessments and collaborations with basin partners.
Monitoring and modeling soil moisture to improve runoff forecasting and drought characterization in the Feather River Basin
Drought, along with recent wildfires, have had enormous impacts downstream on water quantity and quality. These conditions have greatly impacted the agriculture and the residents of the nearby Central Valley.
Next Generation Stream Gaging
USGS scientists and partners have developed and deployed a low-cost, low-power stream gage system that could meet California’s next generation water needs. The system is now in experimental deployment in Sonoma County, addressing post-wildfire runoff threats and is being developed for the Upper Feather River watershed in northern California - a primary source of the state's water supply. This...
Improving Water Resilience and Availability Through Culturally Prescribed Fires as a Management Tool on Yurok Tribal Lands
Climate Change is making our environment unpredictable. Increased persistence of drought is causing deaths of plants and animals across our landscapes. However, drought amongst the western United States is not a new thing. Native American populations have been living with drought since time immemorial and practiced culturally prescribed fire practices to foster the landscape for an environment tha
Incipient Bed-Movement and Flood-Frequency Analysis Using Hydrophones to Estimate Flushing Flows on the Upper Colorado River, Colorado, 2019
In an effort to better understand sediment movement and its relation to flow regimes of the Upper Colorado River in Colorado, in 2019, the U.S. Geological Survey, in cooperation with the Upper Colorado River Wild and Scenic Stakeholder Group, studied the magnitude and recurrence interval of streamflow (discharge) needed to initiate bed movement of gravel-sized and finer sediment in a segment of...
Upper Esopus Creek Tributary Bedload Pilot Study
Problem Sediment transport is a serious concern in the upper Esopus Creek watershed. The creek is a well-documented source of sediment and turbidity to the Ashokan Reservoir, which is part of the New York City water supply system. During the last 2 decades there has been a series of stream stabilization and sediment reduction projects completed in the upper Esopus Creek watershed intended to reduc
Exploring: Reservoir Capacity And Sedimentation Of The Fena Valley Reservoir Guam
The Fena Valley Reservoir, located in southern Guam, is the primary source of water for the United States Naval Base Guam and nearby village residents. At full capacity, the reservoir surface area extends approximately 0.30 mi 2 , and drains a watershed area of about 5.88 mi 2 . After reservoir construction, periodic bathymetric surveys, coupled with sedimentation models, can be used to produce...
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...
Science and Products
Filter Total Items: 14
Bay-Delta Catchability Study
Addressing Catchability Bias in Fish Surveys San Francisco Bay and the Sacramento-San Joaquin Delta collectively make up the "Bay-Delta." In the scientific study of fish, "catchability" refers to the probability that a fish will be captured by a particular fishing gear or method. Catchability is a measure of how effectively a fishing gear or method can capture fish. "Catch data" refer to...
Santa Ana River Native Fish Study
Native Fish Population and Habitat Study, Santa Ana River, California The Santa Ana River, the largest river in southern California, flows through diverse landscapes, from the high desert to urban and suburban areas in Orange, Riverside, and San Bernardino Counties, stretching approximately 96 miles (154 kilometers) from its headwaters in the San Bernardino Mountains to its mouth at the Pacific...
Culturally Prescribed Fire
Culturally prescribed burning has been long practiced by the Yurok Tribe for a variety of reasons. This study explores using culturally prescribed fire as a land management tool for increasing the resiliency of streams and watersheds.
Incorporating Impacts of Wildfire and Vegetation Recovery into a Watershed Model of the Feather River Basin
Changes in vegetation in a large watershed due to wildfire can have a substantial influence on actual evapotranspiration rates and water availability. After a large, intense wildfire, evapotranspiration rates are expected to decrease. As vegetation reestablishes, the evapotranspiration rates increase over a period of years, back to pre-fire conditions. Watershed models typically use input layers...
Klamath Dam Removal Studies
The USGS is collecting continuous and discrete monitoring data to document baseline conditions and physical responses in downstream river reaches before, during, and after dam removal. These monitoring data will be integral for post-removal assessments and collaborations with basin partners.
Monitoring and modeling soil moisture to improve runoff forecasting and drought characterization in the Feather River Basin
Drought, along with recent wildfires, have had enormous impacts downstream on water quantity and quality. These conditions have greatly impacted the agriculture and the residents of the nearby Central Valley.
Next Generation Stream Gaging
USGS scientists and partners have developed and deployed a low-cost, low-power stream gage system that could meet California’s next generation water needs. The system is now in experimental deployment in Sonoma County, addressing post-wildfire runoff threats and is being developed for the Upper Feather River watershed in northern California - a primary source of the state's water supply. This...
Improving Water Resilience and Availability Through Culturally Prescribed Fires as a Management Tool on Yurok Tribal Lands
Climate Change is making our environment unpredictable. Increased persistence of drought is causing deaths of plants and animals across our landscapes. However, drought amongst the western United States is not a new thing. Native American populations have been living with drought since time immemorial and practiced culturally prescribed fire practices to foster the landscape for an environment tha
Incipient Bed-Movement and Flood-Frequency Analysis Using Hydrophones to Estimate Flushing Flows on the Upper Colorado River, Colorado, 2019
In an effort to better understand sediment movement and its relation to flow regimes of the Upper Colorado River in Colorado, in 2019, the U.S. Geological Survey, in cooperation with the Upper Colorado River Wild and Scenic Stakeholder Group, studied the magnitude and recurrence interval of streamflow (discharge) needed to initiate bed movement of gravel-sized and finer sediment in a segment of...
Upper Esopus Creek Tributary Bedload Pilot Study
Problem Sediment transport is a serious concern in the upper Esopus Creek watershed. The creek is a well-documented source of sediment and turbidity to the Ashokan Reservoir, which is part of the New York City water supply system. During the last 2 decades there has been a series of stream stabilization and sediment reduction projects completed in the upper Esopus Creek watershed intended to reduc
Exploring: Reservoir Capacity And Sedimentation Of The Fena Valley Reservoir Guam
The Fena Valley Reservoir, located in southern Guam, is the primary source of water for the United States Naval Base Guam and nearby village residents. At full capacity, the reservoir surface area extends approximately 0.30 mi 2 , and drains a watershed area of about 5.88 mi 2 . After reservoir construction, periodic bathymetric surveys, coupled with sedimentation models, can be used to produce...
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...