Index Catalog // ScholarsArchive@OSU

Submarine earthquakes, volcanic eruptions and ambient noise in the Northeast Pacific

Creator:: Haxel, Joseph H.
Abstract:: Passive hydrophone technologies and a variety of acoustic methods are applied in the deep-ocean and shallow water coastal environments of the northeast Pacific. A catalog derived from U.S. Navy regional hydrophone array recordings of acoustic T- phases from seafloor earthquakes is examined, describing space/time patterns through empirical orthogonal function analysis...
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE DISSERTATION OF Joseph H. Haxel

The sediment response of a dissipative beach to variations in wave climate

Creator:: Haxel, Joseph H.
Abstract:: Using wave and wind data from nearby buoys and gauges, real time kinematic global positioning system (RTK-GPS) and light detection and ranging (lidar) topographic survey data, and a robust video record, we have quantified the Large Scale Coastal Behavior (LSCB) of a dissipative end member beach in the Pacific Northwest....
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Joseph H. Haxel for the degree of

Comparing Surf Generated Ambient Sound Levels between Reef and Sandy Seafloor Environments off the Oregon Coast

Creator:: Meyer, Ross P.
Abstract:: Keywords: substrate; surf generated noise; wave energy conversion; WEC; sound; wave; wind speed
Resource Type:: Research Paper

Detecting Fish Vocalizations in American Samoa Using Machine Learning

Creator:: Munger, Jill
Abstract:: A deep neural network was developed and trained to identify the sounds of pomacentrids (damselfishes) in the National Park of American Samoa. Four years of continuous, passive acoustic data were recorded by a single stationary hydrophone. Deep neural networks enable the full utilization of such large datasets by automating laborious...
Resource Type:: Presentation
Full Text:: enormous implications on how we study the ocean. Thank you to my supportive mentors, Joe Haxel and

Foreshock Analysis of Submarine Transform Fault Earthquakes along the Equatorial Mid-Atlantic Ridge

Creator:: Meyer, Ross P.
Abstract:: Keywords: earthquake; mid-Atlantic ridge; hydrophone; Equatorial Atlantic Ocean; MAR; submarine seismology; hydroacoustics; teleseismic earthquake; foreshock pattern
Resource Type:: Research Paper

Body Condition and Hormone Assessment of Eastern North Pacific Gray Whales (Eschrichtius robustus) and Associations with Ambient Noise

Creator:: Lemos, Leila S.
Abstract:: Anthropogenic activities have posed many threats to the oceans and marine life. Understanding how individuals are affected and physiologically respond to these threats is crucial and allows for management and conservation applications. I evaluated the overall health condition of a subpopulation of gray whales (Eschrichtius robustus) along the Oregon coast,...
Resource Type:: Dissertation
Full Text:: fieldwork, and helped drafting the manuscripts and thesis. Joseph Haxel led the acoustic components of the

2012 Annual Operations & Monitoring Report: North Energy Test Site

Creator:: Henkel, Sarah K., Haxel, Joseph H., Schultz, Adam, and Hofford, Anna
Abstract:: The first wave energy test at the Northwest National Marine Renewable Energy Center’s (NNMREC) North Energy Test Site (NETS) off the coast of Newport, OR took place in 2012 with the deployment of the WET-NZ wave energy conversion (WEC) device and the Ocean Sentinel instrumentation buoy. The WET-NZ and Ocean...
Resource Type:: Technical Report

Spatio-temporal Patterns and Ecological Drivers of Harbor Porpoise (Phocoena phocoena) off the Central Oregon Coast, USA

Creator:: Holdman, Amanda
Abstract:: The marine environment is under increasing pressure from human activities worldwide, particularly in coastal waters, creating a need to better understand fine-scale distributions of highly mobile species that occur in the area, as they are frequently most threatened. Harbor porpoise (Phocoena phocoena) occur frequently in Oregon’s nearshore habitat, but due...
Resource Type:: Masters Thesis
Full Text:: group of researchers by my side. Specifically, thank you to Joe Haxel for entertaining my endless

Long Term Trends and Sources of Sound in United States Waters

Creator:: Haver, Samara M.
Abstract:: Passive acoustic monitoring is a valuable tool for observing the status of marine environments. Comparisons of underwater soundscapes over temporal and spatial scales can provide data to inform marine conservation efforts, including protection of threatened and endangered species. This dissertation utilizes passive acoustic data collected via a broadly spaced array...
Resource Type:: Dissertation
Full Text:: , Brad Hanson, Joseph Haxel, Marla Holt, Danielle Lipski, Haru Matsumoto, Christian Meinig, David K

J.H. Woodger and the emergence of supra-empirical orders of discussion in early twentieth century biology

Creator:: Allen, Marshall William
Abstract:: This investigation attempts to demonstrate that the development of the early 20th century biological enterprise involved a striving for a unifying theoretical perspective. A skeletal substantiation of this is given by an overview of early 20th century biology in which some biologists began recognizing a multiplicity of different orders of...
Resource Type:: Masters Thesis
Full Text:: understood the message of this thesis before I ever wrote it; and Joseph H. Woodger who graciously wracked

ScholarsArchive@OSU

Submarine earthquakes, volcanic eruptions and ambient noise in the Northeast Pacific

The sediment response of a dissipative beach to variations in wave climate

Comparing Surf Generated Ambient Sound Levels between Reef and Sandy Seafloor Environments off the Oregon Coast

Detecting Fish Vocalizations in American Samoa Using Machine Learning

Foreshock Analysis of Submarine Transform Fault Earthquakes along the Equatorial Mid-Atlantic Ridge

Body Condition and Hormone Assessment of Eastern North Pacific Gray Whales (Eschrichtius robustus) and Associations with Ambient Noise

2012 Annual Operations & Monitoring Report: North Energy Test Site

Spatio-temporal Patterns and Ecological Drivers of Harbor Porpoise (Phocoena phocoena) off the Central Oregon Coast, USA

Long Term Trends and Sources of Sound in United States Waters

J.H. Woodger and the emergence of supra-empirical orders of discussion in early twentieth century biology

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