Research Oceanographer Jessica Lacy investigates the influence of tides, waves, and water levels on wave-exposed tidal salt marshes, helping to understand how these important ecosystems will respond to sea level rise.
Jessie Lacy
Research Oceanographer with the USGS Pacific Coastal and Marine Science Center
My research interests include: Hydrodynamics of the coastal ocean, estuaries, and lakes; Lateral dynamics in estuaries with complex topography, and their influence on mixing; The dynamics of stratification and baroclinic transport; Estimation of bottom roughness, bottom shear stress, and sediment resuspension in wave-dominated environments; Interaction between aquatic vegetation and hydrodynamics
Science and Products
Coastal Wetland Vulnerability to Climate Change and Sea-Level Rise: Understanding Ecological Thresholds and Ecosystem Transformations
Eighteen USGS coastal scientists from all four coasts of the conterminous United States are working together to advance the understanding of climate change and sea-level rise impacts to coastal wetlands.
By
California Water Science Center, Chesapeake Bay Activities, Eastern Ecological Science Center, Florence Bascom Geoscience Center, Great Lakes Science Center, Pacific Coastal and Marine Science Center, St. Petersburg Coastal and Marine Science Center, Western Ecological Research Center (WERC), Western Geographic Science Center, Wetland and Aquatic Research Center , Woods Hole Coastal and Marine Science Center
Sediment Transport in Coastal Environments
Our research goals are to provide the scientific information, knowledge, and tools required to ensure that decisions about land and resource use, management practices, and future development in the coastal zone and adjacent watersheds can be evaluated with a complete understanding of the probable effects on coastal ecosystems and communities, and a full assessment of their vulnerability to natural...
Sediment transport between estuarine habitats in San Francisco Bay
We investigate mechanisms of sediment transport, resuspension dynamics in shoals, wave evolution in the shallows, wave attenuation in marshes, and transport of sediment between mudflats and marshes. We produce data sets for calibration of and comparison with sediment transport models, including wave parameters, suspended sediment concentration, and sediment flux.
Drag and sediment transport: conditions at the bottom boundary
Research on bed sediment grain size, bedform morphology, vegetation characteristics, and sediment resuspension and transport.
Ecosystem Engineers: Impacts of Invasive Aquatic Vegetation on the Delta’s Critical Ecosystems
The Sacramento-San Joaquin Delta (Delta) is home to a diverse community of plants and animals and is the hub of California’s freshwater delivery system. The Delta supplies water for over 25 million Californians and supports millions of acres of farming, commercial and sport fishing, shipping and ports, and recreational boating.
Climate Science Champions Season 3: Jessica Lacy, Research Oceanographer
Research Oceanographer Jessica Lacy investigates the influence of tides, waves, and water levels on wave-exposed tidal salt marshes, helping to understand how these important ecosystems will respond to sea level rise.
Climate Science Champions Season 3: Jessica Lacy, Research Oceanographer (AD)
Research Oceanographer Jessica Lacy investigates the influence of tides, waves, and water levels on wave-exposed tidal salt marshes, helping to understand how these important ecosystems will respond to sea level rise.
Research Oceanographer Jessica Lacy investigates the influence of tides, waves, and water levels on wave-exposed tidal salt marshes, helping to understand how these important ecosystems will respond to sea level rise.
Sediment Transport in San Francisco Bay (AD)
The Sacramento and San Joaquin Rivers deliver half the amount of sediment they did 50 years ago to San Francisco Bay. Just as sea-level rise is accelerating, the demand for sediment is growing.
The Sacramento and San Joaquin Rivers deliver half the amount of sediment they did 50 years ago to San Francisco Bay. Just as sea-level rise is accelerating, the demand for sediment is growing.
Sediment Transport in San Francisco Bay
The Sacramento and San Joaquin Rivers deliver half the amount of sediment they did 50 years ago to San Francisco Bay. Just as sea-level rise is accelerating, the demand for sediment is growing.
The Sacramento and San Joaquin Rivers deliver half the amount of sediment they did 50 years ago to San Francisco Bay. Just as sea-level rise is accelerating, the demand for sediment is growing.
PCMSC boat Fast Eddy
The USGS Pacific Coastal and Marine Science Center's (PCMSC) small utility boat named Fast Eddy, shown here on the Mokelumne River in northern California.
The USGS Pacific Coastal and Marine Science Center's (PCMSC) small utility boat named Fast Eddy, shown here on the Mokelumne River in northern California.
Mokelumne River survey
Mokelumne River near confluence with the San Joaquin River in the Sacramento-San Joaquin Delta, CA, looking downstream, with Cordell Johnson (USGS PCMSC) and Rachel Allen (USGS PCMSC) collecting data from the R/V Fast Eddy.
Mokelumne River near confluence with the San Joaquin River in the Sacramento-San Joaquin Delta, CA, looking downstream, with Cordell Johnson (USGS PCMSC) and Rachel Allen (USGS PCMSC) collecting data from the R/V Fast Eddy.
Collecting data and samples from San Pablo Bay
At left, USGS Pacific Coastal and Marine Science Center scientists Pete Dal Ferro, Jenny White, and Joanne Thede Ferreira deploy a platform at the Lower station, where the depth of the bay floor is 1 m below MLLW. Photograph taken February 2, 2011, by Jessie Lacy.
At left, USGS Pacific Coastal and Marine Science Center scientists Pete Dal Ferro, Jenny White, and Joanne Thede Ferreira deploy a platform at the Lower station, where the depth of the bay floor is 1 m below MLLW. Photograph taken February 2, 2011, by Jessie Lacy.
San Pablo Bay instrument frames
February 25, 2011, San Pablo Bay data collection. At left, the platform at the Lower station is partly exposed to the air shortly after low tide. At right, the platform on mudflat at the Upper station is completely exposed to the air shortly after low tide on February 25, 2011.
February 25, 2011, San Pablo Bay data collection. At left, the platform at the Lower station is partly exposed to the air shortly after low tide. At right, the platform on mudflat at the Upper station is completely exposed to the air shortly after low tide on February 25, 2011.
Turbid Bay: Sediment in Motion
USGS scientists from the Pacific Coastal and Marine Science Center explore how sediment moves across San Francisco Bay tidal flats. The research team deploys a suite of large instrumented tripods to record sediment movements over a six-week period in early 2011. Answers from this work will help determine whether deposition of sediment at high tide is occ
USGS scientists from the Pacific Coastal and Marine Science Center explore how sediment moves across San Francisco Bay tidal flats. The research team deploys a suite of large instrumented tripods to record sediment movements over a six-week period in early 2011. Answers from this work will help determine whether deposition of sediment at high tide is occ
Science and Products
Coastal Wetland Vulnerability to Climate Change and Sea-Level Rise: Understanding Ecological Thresholds and Ecosystem Transformations
Eighteen USGS coastal scientists from all four coasts of the conterminous United States are working together to advance the understanding of climate change and sea-level rise impacts to coastal wetlands.
By
California Water Science Center, Chesapeake Bay Activities, Eastern Ecological Science Center, Florence Bascom Geoscience Center, Great Lakes Science Center, Pacific Coastal and Marine Science Center, St. Petersburg Coastal and Marine Science Center, Western Ecological Research Center (WERC), Western Geographic Science Center, Wetland and Aquatic Research Center , Woods Hole Coastal and Marine Science Center
Sediment Transport in Coastal Environments
Our research goals are to provide the scientific information, knowledge, and tools required to ensure that decisions about land and resource use, management practices, and future development in the coastal zone and adjacent watersheds can be evaluated with a complete understanding of the probable effects on coastal ecosystems and communities, and a full assessment of their vulnerability to natural...
Sediment transport between estuarine habitats in San Francisco Bay
We investigate mechanisms of sediment transport, resuspension dynamics in shoals, wave evolution in the shallows, wave attenuation in marshes, and transport of sediment between mudflats and marshes. We produce data sets for calibration of and comparison with sediment transport models, including wave parameters, suspended sediment concentration, and sediment flux.
Drag and sediment transport: conditions at the bottom boundary
Research on bed sediment grain size, bedform morphology, vegetation characteristics, and sediment resuspension and transport.
Ecosystem Engineers: Impacts of Invasive Aquatic Vegetation on the Delta’s Critical Ecosystems
The Sacramento-San Joaquin Delta (Delta) is home to a diverse community of plants and animals and is the hub of California’s freshwater delivery system. The Delta supplies water for over 25 million Californians and supports millions of acres of farming, commercial and sport fishing, shipping and ports, and recreational boating.
Climate Science Champions Season 3: Jessica Lacy, Research Oceanographer
Research Oceanographer Jessica Lacy investigates the influence of tides, waves, and water levels on wave-exposed tidal salt marshes, helping to understand how these important ecosystems will respond to sea level rise.
Research Oceanographer Jessica Lacy investigates the influence of tides, waves, and water levels on wave-exposed tidal salt marshes, helping to understand how these important ecosystems will respond to sea level rise.
Climate Science Champions Season 3: Jessica Lacy, Research Oceanographer (AD)
Research Oceanographer Jessica Lacy investigates the influence of tides, waves, and water levels on wave-exposed tidal salt marshes, helping to understand how these important ecosystems will respond to sea level rise.
Research Oceanographer Jessica Lacy investigates the influence of tides, waves, and water levels on wave-exposed tidal salt marshes, helping to understand how these important ecosystems will respond to sea level rise.
Sediment Transport in San Francisco Bay (AD)
The Sacramento and San Joaquin Rivers deliver half the amount of sediment they did 50 years ago to San Francisco Bay. Just as sea-level rise is accelerating, the demand for sediment is growing.
The Sacramento and San Joaquin Rivers deliver half the amount of sediment they did 50 years ago to San Francisco Bay. Just as sea-level rise is accelerating, the demand for sediment is growing.
Sediment Transport in San Francisco Bay
The Sacramento and San Joaquin Rivers deliver half the amount of sediment they did 50 years ago to San Francisco Bay. Just as sea-level rise is accelerating, the demand for sediment is growing.
The Sacramento and San Joaquin Rivers deliver half the amount of sediment they did 50 years ago to San Francisco Bay. Just as sea-level rise is accelerating, the demand for sediment is growing.
PCMSC boat Fast Eddy
The USGS Pacific Coastal and Marine Science Center's (PCMSC) small utility boat named Fast Eddy, shown here on the Mokelumne River in northern California.
The USGS Pacific Coastal and Marine Science Center's (PCMSC) small utility boat named Fast Eddy, shown here on the Mokelumne River in northern California.
Mokelumne River survey
Mokelumne River near confluence with the San Joaquin River in the Sacramento-San Joaquin Delta, CA, looking downstream, with Cordell Johnson (USGS PCMSC) and Rachel Allen (USGS PCMSC) collecting data from the R/V Fast Eddy.
Mokelumne River near confluence with the San Joaquin River in the Sacramento-San Joaquin Delta, CA, looking downstream, with Cordell Johnson (USGS PCMSC) and Rachel Allen (USGS PCMSC) collecting data from the R/V Fast Eddy.
Collecting data and samples from San Pablo Bay
At left, USGS Pacific Coastal and Marine Science Center scientists Pete Dal Ferro, Jenny White, and Joanne Thede Ferreira deploy a platform at the Lower station, where the depth of the bay floor is 1 m below MLLW. Photograph taken February 2, 2011, by Jessie Lacy.
At left, USGS Pacific Coastal and Marine Science Center scientists Pete Dal Ferro, Jenny White, and Joanne Thede Ferreira deploy a platform at the Lower station, where the depth of the bay floor is 1 m below MLLW. Photograph taken February 2, 2011, by Jessie Lacy.
San Pablo Bay instrument frames
February 25, 2011, San Pablo Bay data collection. At left, the platform at the Lower station is partly exposed to the air shortly after low tide. At right, the platform on mudflat at the Upper station is completely exposed to the air shortly after low tide on February 25, 2011.
February 25, 2011, San Pablo Bay data collection. At left, the platform at the Lower station is partly exposed to the air shortly after low tide. At right, the platform on mudflat at the Upper station is completely exposed to the air shortly after low tide on February 25, 2011.
Turbid Bay: Sediment in Motion
USGS scientists from the Pacific Coastal and Marine Science Center explore how sediment moves across San Francisco Bay tidal flats. The research team deploys a suite of large instrumented tripods to record sediment movements over a six-week period in early 2011. Answers from this work will help determine whether deposition of sediment at high tide is occ
USGS scientists from the Pacific Coastal and Marine Science Center explore how sediment moves across San Francisco Bay tidal flats. The research team deploys a suite of large instrumented tripods to record sediment movements over a six-week period in early 2011. Answers from this work will help determine whether deposition of sediment at high tide is occ