Sediment sampling locations in the Sacramento-San Joaquin Delta, California near Little Holland Tract and Liberty Island, 2014 to 2017
Images
![View from the sky of a marsh labeled with sample locations.](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/thumbnails/image/littleholland-liberty.jpg?itok=U830T1BA)
Sediment sampling locations in the Sacramento-San Joaquin Delta, California near Little Holland Tract and Liberty Island, 2014 to 2017
![In background, photo shows a view of a beach with hotels and skyscrapers along the shore, text advertisement on top.](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/thumbnails/image/Apr18flyer-pg1.jpg?itok=6JvDbq9e)
Flyer to advertise the upcoming USGS Menlo Park Campus Free Public Lecture on April 26, 2018: "The Role of U.S.
Flyer to advertise the upcoming USGS Menlo Park Campus Free Public Lecture on April 26, 2018: "The Role of U.S.
USGS geomorphologist Pat Limber drives an all-terrain vehicle equipped with differential GPS, on Ellwood Beach in Goleta, California, collecting topographic, or elevation and contour, data. These data, accurate to about 1 inch (about 2 centimeters) both horizontally and vertically, are used to monitor seasonal beach changes.
USGS geomorphologist Pat Limber drives an all-terrain vehicle equipped with differential GPS, on Ellwood Beach in Goleta, California, collecting topographic, or elevation and contour, data. These data, accurate to about 1 inch (about 2 centimeters) both horizontally and vertically, are used to monitor seasonal beach changes.
Jackson Currie of the USGS Pacific Coastal and Marine Science Center drives a personal watercraft (PWC) offshore of Butterfly Beach in Montecito, California. The equipment on the PWC collects bathymetry, or depth, data which is used to map the nearshore. USGS has been mapping this area twice yearly—every spring and fall—since 2005.
Jackson Currie of the USGS Pacific Coastal and Marine Science Center drives a personal watercraft (PWC) offshore of Butterfly Beach in Montecito, California. The equipment on the PWC collects bathymetry, or depth, data which is used to map the nearshore. USGS has been mapping this area twice yearly—every spring and fall—since 2005.
USGS volunteer Josh Brown on Santa Claus Beach, Carpinteria, at the start of a 14-mile walking survey of southern California beaches. The differential GPS equipment carried in the backpack collects elevation, or topographic, data of the beach, accurate to about 1 inch (2 centimeters) both horizontally and vertically.
USGS volunteer Josh Brown on Santa Claus Beach, Carpinteria, at the start of a 14-mile walking survey of southern California beaches. The differential GPS equipment carried in the backpack collects elevation, or topographic, data of the beach, accurate to about 1 inch (2 centimeters) both horizontally and vertically.
USGS geomorphologist Pat Limber drives an all-terrain vehicle equipped with differential GPS, on San Buenaventura Beach south of Ventura Pier, Ventura California, collects topographic, or elevation and contour, data. These data, accurate to about 1 inch (about 2 centimeters) both horizontally and vertically, are used to monitor seasonal beach changes.
USGS geomorphologist Pat Limber drives an all-terrain vehicle equipped with differential GPS, on San Buenaventura Beach south of Ventura Pier, Ventura California, collects topographic, or elevation and contour, data. These data, accurate to about 1 inch (about 2 centimeters) both horizontally and vertically, are used to monitor seasonal beach changes.
Jackson Currie and Alex Snyder of the USGS Pacific Coastal and Marine Science Center drive personal watercraft (PWCs) offshore of San Ysidro and Oak Creeks, which let out onto Miramar Beach in Montecito, California.
Jackson Currie and Alex Snyder of the USGS Pacific Coastal and Marine Science Center drive personal watercraft (PWCs) offshore of San Ysidro and Oak Creeks, which let out onto Miramar Beach in Montecito, California.
Two USGS scientists operate personal watercraft equipped with sonar and GPS along the beachfront off San Ysidro Creek, near Fernald Point in Montecito, California. They will use the data collected to create bathymetric (depth) maps.
Two USGS scientists operate personal watercraft equipped with sonar and GPS along the beachfront off San Ysidro Creek, near Fernald Point in Montecito, California. They will use the data collected to create bathymetric (depth) maps.
Footprints in mud layer deposited on the sand at Miramar Beach in Montecito, California, by January 9 flood waters coming down San Ysidro Creek.
Footprints in mud layer deposited on the sand at Miramar Beach in Montecito, California, by January 9 flood waters coming down San Ysidro Creek.
Shruti Khanna (left, California Department of Fish and Wildlife) and Judy Drexler (USGS California Water Science Center) on the USGS Pacific Coastal and Marine Science Center’s research vessel Parke Snavely during fieldwork in the Sacramento-San Joaquin River Delta.
Shruti Khanna (left, California Department of Fish and Wildlife) and Judy Drexler (USGS California Water Science Center) on the USGS Pacific Coastal and Marine Science Center’s research vessel Parke Snavely during fieldwork in the Sacramento-San Joaquin River Delta.
Patches of dark sand cling to an instrument package that collected data for approximately two weeks at the Mokelumne River site—evidence that currents at the site were strong enough to carry sand, which is heavier than mud, probably during elevated river flows following two storms in the watershed.
Patches of dark sand cling to an instrument package that collected data for approximately two weeks at the Mokelumne River site—evidence that currents at the site were strong enough to carry sand, which is heavier than mud, probably during elevated river flows following two storms in the watershed.
USGS physical scientist Cordell Johnson, at left, and USGS research oceanographer Jessie Lacy, both from the Pacific Coastal and Marine Science Center, guide a tripod with instruments into the waters of the Mokelumne River near the confluence with the San Joaquin River. The Mokelumne is part of the vast Sacramento-San Joaquin River Delta in California,&nbs
USGS physical scientist Cordell Johnson, at left, and USGS research oceanographer Jessie Lacy, both from the Pacific Coastal and Marine Science Center, guide a tripod with instruments into the waters of the Mokelumne River near the confluence with the San Joaquin River. The Mokelumne is part of the vast Sacramento-San Joaquin River Delta in California,&nbs
Dan Powers (USGS PCMSC) and Rachel Marcuson (USGS PCMSC) prepare to deploy a Gomex sediment corer from the R/V Snavely in the Mokulumne River near confluence of San Joaquin River in the Sacramento-San Joaquin Delta, CA.
Dan Powers (USGS PCMSC) and Rachel Marcuson (USGS PCMSC) prepare to deploy a Gomex sediment corer from the R/V Snavely in the Mokulumne River near confluence of San Joaquin River in the Sacramento-San Joaquin Delta, CA.
![A man is leaning over and is scooping soil from a wildfire-charred hillslope and placing the soil in a sample bag.](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/thumbnails/image/Ro_NorCalSoilMar18LG.jpg?itok=bWhIUI32)
Brett Tipple (University of California, Santa Cruz) collects a sample of charcoal and soil adjacent to a gully forming on a hillslope above Sonoma Creek, which was burned by the Nuns wildfire in October 2017.
Brett Tipple (University of California, Santa Cruz) collects a sample of charcoal and soil adjacent to a gully forming on a hillslope above Sonoma Creek, which was burned by the Nuns wildfire in October 2017.
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.
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.
Orthophoto of the mouth of the Elwha River in Washington. The orthophoto was compiled from images collected with a Ricoh GR camera operating at 2-second intervals and mounted on a Cessna 172 piloted by Rite Bros. Aviation.
Orthophoto of the mouth of the Elwha River in Washington. The orthophoto was compiled from images collected with a Ricoh GR camera operating at 2-second intervals and mounted on a Cessna 172 piloted by Rite Bros. Aviation.
![View from the sky of a river surrounded by a heavily forested area and winding through a bare section that used to be a lake.](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/thumbnails/image/Elwha-Aldwell-03-12-2018.jpg?itok=lJqEayaK)
Orthophoto (GigaPan) of the former Elwha Dam and former Lake Aldwell, on the Elwha River, Washington, compiled from ultra high-resolution images collected with a Ricoh GR camera operating at 2-second intervals, mounted on a Cessna 172 piloted by Rite Bros. Aviation and processed using Structure-from-Motion techniques.
Orthophoto (GigaPan) of the former Elwha Dam and former Lake Aldwell, on the Elwha River, Washington, compiled from ultra high-resolution images collected with a Ricoh GR camera operating at 2-second intervals, mounted on a Cessna 172 piloted by Rite Bros. Aviation and processed using Structure-from-Motion techniques.
Orthophoto (GigaPan) of the former Glines Canyon Dam and former Lake Mills, on the Elwha River, Washington, compiled from ultra high-resolution images collected with a Ricoh GR camera operating at 2-second intervals, mounted on a Cessna 172 piloted by Rite Bros. Aviation and processed using Structure-from-Motion techniques.
Orthophoto (GigaPan) of the former Glines Canyon Dam and former Lake Mills, on the Elwha River, Washington, compiled from ultra high-resolution images collected with a Ricoh GR camera operating at 2-second intervals, mounted on a Cessna 172 piloted by Rite Bros. Aviation and processed using Structure-from-Motion techniques.
Bird's eye view of the ISA 24th Council
Bird's eye view of the ISA 24th Council
The view from one of two video cameras atop the Dream Inn hotel in Santa Cruz, California, that overlook the coast in northern Monterey Bay. This view, from camera 1, looks eastward over Santa Cruz Main Beach and boardwalk.
The view from one of two video cameras atop the Dream Inn hotel in Santa Cruz, California, that overlook the coast in northern Monterey Bay. This view, from camera 1, looks eastward over Santa Cruz Main Beach and boardwalk.