Publications
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USGS Publications Warehouse
USGS Publications Warehouse
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Sound Waves Newsletter
Sound Waves Newsletter
Browse issues of Sound Waves, featuring USGS coastal and marine research news.
Filter Total Items: 1780
Mapping river flow from thermal images in approximately real time: Proof of concept on the Sacramento River, California, USA Mapping river flow from thermal images in approximately real time: Proof of concept on the Sacramento River, California, USA
Image velocimetry has become an effective method of mapping flow conditions in rivers, but this analysis is typically performed in a post-processing mode after data collection is complete. In this study, we evaluated the potential to infer flow velocities in approximately real time as thermal images are being acquired from an uncrewed aircraft system (UAS). The sensitivity of thermal...
Authors
Carl J. Legleiter, Paul J. Kinzel, Michael Dille, Massimo Vespignani, Uland Wong, Isaac E Anderson, Elizabeth Hyde, Christopher L. Gazoorian, Jennifer Marie Cramer
Pragmatically mapping Phragmites with unoccupied aerial systems: A comparison of invasive species land cover classification using RGB and multispectral imagery Pragmatically mapping Phragmites with unoccupied aerial systems: A comparison of invasive species land cover classification using RGB and multispectral imagery
Unoccupied aerial systems (UASs) are increasingly being deployed in coastal environments to rapidly map and monitor changes to geomorphology, vegetation, and infrastructure, particularly in difficult to access areas. UAS data, relative to airplane or satellite data, typically have higher spatial resolution, sensor customization, and increased flexibility in temporal resolution, which...
Authors
Alexandra Danielle Evans, Jennifer Marie Cramer, Victoria Mary Scholl, Erika E. Lentz
U.S. Geological Survey research and assessments supporting carbon dioxide removal U.S. Geological Survey research and assessments supporting carbon dioxide removal
Both carbon capture and storage (CCS) and carbon dioxide removal (CDR) are methods to limit future global temperature rise and ocean acidification. CCS sequesters (stores) carbon dioxide (CO2) captured from industrial sources thereby preventing the CO2 from reaching the atmosphere. The captured CO2 is injected into underground geologic reservoirs or is converted into stable industrial...
Authors
Peter D. Warwick, Madalyn S. Blondes, Judith Z. Drexler, Kevin D. Kroeger, Zhiliang Zhu
Hydroacoustic observations reveal drivers of mixing and salinization of a karst subterranean estuary during intense precipitation Hydroacoustic observations reveal drivers of mixing and salinization of a karst subterranean estuary during intense precipitation
Karst subterranean estuaries within globally ubiquitous carbonate aquifers are coastal groundwater ecosystems that provide an essential water resource for human populations. To understand the drivers of salinization within a coastal aquifer in the Yucatan Peninsula (Mexico), we employed hydroacoustics in flooded caves to observe how oceanic and atmospheric events facilitate mixing...
Authors
Neil K. Ganju, John W. Pohlman, Steven E. Suttles, David Brankovits
Field geology under the sea with a remotely operated vehicle: Mona Rift, Puerto Rico Field geology under the sea with a remotely operated vehicle: Mona Rift, Puerto Rico
We implemented concepts of field geology at great ocean depths by constructing virtual outcrops from a string of overlapping video frames collected by remotely operated vehicles (ROVs). This lower-cost alternative to drilling boreholes allows stratigraphic extension into the offshore and regional interpretation of marine seismic profiles. The imagery was collected along a dive transect...
Authors
Uri S. ten Brink, Or M. Bialik, Jason Chaytor, Claudia Flores, Marcie Purkey Phillips
Direct measurements of sediment geoacoustic properties in the New England Mud Patch and shelf break Direct measurements of sediment geoacoustic properties in the New England Mud Patch and shelf break
This paper reports on an original set of direct sound speed measurements collected with the acoustic coring system in the New England Mud Patch (NEMP) and shelf break area to the south. Cores collected within the NEMP show range-dependence of the mud with slower sound speed and lower attenuation on the west side. In the shelf break region, the highest sound speeds are observed between...
Authors
Megan S. Ballard, Dante D. Garcia, Kevin M. Lee, Gabriel R. Venegas, Andrew R. McNeese, Preston S. Wilson, Jason Chaytor
Editorial: Natural methane emissions in a changing arctic – implications for climate and environment Editorial: Natural methane emissions in a changing arctic – implications for climate and environment
No abstract available.
Authors
K. Andreassen, Carolyn D. Ruppel, S. Liebner, A. Hodson, J. Knies
Controls on the stratigraphic architecture of the US Atlantic margin: Processes forming the accommodation space Controls on the stratigraphic architecture of the US Atlantic margin: Processes forming the accommodation space
Accommodation space governs the spatial and temporal distributions of sediments in continental margins. Mapping the sedimentation patterns, therefore, offers insights into the solid-Earth processes that shape accommodation space. We assembled an unprecedented amount of seismic and borehole data along the Eastern North American Margin and used it to divide the margin's sedimentary package...
Authors
Guy Lang, Uri S. ten Brink, Deborah Hutchinson, Gregory S. Mountain, Uri Schattner
Shaping the coast: Accounting for the human wildcard in projections of future change Shaping the coast: Accounting for the human wildcard in projections of future change
Coastal change and evolution are the product of physical drivers (e.g., waves) tightly coupled with human behavior. As climate change impacts intensify, demand is increasing for information on where, when, and how coastal areas may change in the future. Although considerable research investments have been made in understanding the physical drivers and processes that modify and shape...
Authors
Erika E. Lentz, Gabrielle Wong-Parodi, Sara L. Zeigler, Renee C. Collini, Margaret L. Palmsten, Davina L. Passeri
Editorial: From cold seeps to hydrothermal vents: Geology, chemistry, microbiology, and ecology in marine and coastal environments Editorial: From cold seeps to hydrothermal vents: Geology, chemistry, microbiology, and ecology in marine and coastal environments
This Research Topic compiles contemporary studies on cold seeps, hydrothermal vents, mud volcanoes, and related seafloor features that are associated with focused fluid emissions and the transfer of carbon, other chemical species, and sometimes heat from the geosphere to the ocean. Because these features sometimes tap fluids and gas originating kilometers below the seafloor, they provide...
Authors
Glen T. Snyder, Andrew R. Thurber, Stephanie Dupre, Marcelo Ketzer, Carolyn D. Ruppel
Terrebonne Basin northern Gulf of Mexico, 30 July-28 September 2023 Terrebonne Basin northern Gulf of Mexico, 30 July-28 September 2023
In the summer and fall of 2023, the Gulf of Mexico Deepwater Hydrate Coring Expedition (UT-GOM2-2) drilled, cored, made downhole measurements, and analyzed samples from the seafloor to the base of the gas hydrate stability zone in one location (Site H, WR313) in the Terrebonne basin, deepwater Gulf of Mexico. Analyses of data and samples from the expedition will inform biological...
Authors
Peter B. Flemings, Carla Thomas, Stephen C. Phillips, Timothy S. Collett, Ann E. Cook, Evan S. Solomon, Frederick S. Colwell, Joel E. Johnson, David Awwiller, Irita Aylward, Athma Bhandari, Donald Brooks, Alejandro Cardona, Michael Casso, Rachel Coyte, Tom Darrah, Marcy Davis, Brandon Dugan, Dan Duncan, John T. Germaine, Melanie Holland, Jesse Houghton, N. Tanner Mills, Michael Mimitz, Daniel Minarich, Yuki Morono, Zachary Murphy, Joshua O’Connell, Ethan Petrou, Tom Pettigrew, John W. Pohlman, Alexey Portnov, Marcie Purkey Phillips, Thomas Redd, Derek E. Sawyer, Peter Schultheiss, Kelly Shannon, Camille Sullivan, Cathal Small, Kayla Tozier, Man-Yin Tsang, Camila Van Der Maal, William F. Waite, Taylor Walton
U.S. Geological Survey climate science plan—Future research directions U.S. Geological Survey climate science plan—Future research directions
Authors
Tamara Wilson, Ryan P. Boyles, Nicole M. DeCrappeo, Judith Z. Drexler, Kevin D. Kroeger, Rachel A. Loehman, John M. Pearce, Mark P. Waldrop, Peter D. Warwick, Anne M. Wein, Sara L. Zeigler, Beard
By
Ecosystems Mission Area, Water Resources Mission Area, Climate Adaptation Science Centers, Ecosystems Land Change Science Program, Energy Resources Program, Volcano Hazards Program, Alaska Science Center, California Water Science Center, Forest and Rangeland Ecosystem Science Center, Geology, Energy & Minerals Science Center, Volcano Science Center, Western Geographic Science Center, Woods Hole Coastal and Marine Science Center