Explanipedia

Estimating Heterogeneous Treatment Effects of Building Energy Efficiency Retrofits Using Machine Learningp.P1 {Margin: 0.0px 0.0px 0.0px 0.0px; Font: 12.0px Helvetica; Color: #000000} Open

Thomas C. Weber, S. Schneeberger, Philipp Schuetz · 2025

Chattronics: using GPTs to assist in the design of data acquisition systems Open

James E. Brown, Thomas C. Weber · 2024

The usefulness of Large Language Models (LLM) is being continuously tested in various fields. However, their intrinsic linguistic characteristic is still one of the limiting factors when applying these models to exact sciences. In this art…

Categorizing Active Marine Acoustic Sources Based on Their Potential to Affect Marine Animals Open

C. Ruppel, Thomas C. Weber, Erica Staaterman, Stanley J. Labak, Patrick E. Hart · 2022

Marine acoustic sources are widely used for geophysical imaging, oceanographic sensing, and communicating with and tracking objects or robotic vehicles in the water column. Under the U.S. Marine Mammal Protection Act and similar regulation…

A CFAR Detection Approach for Identifying Gas Bubble Seeps With Multibeam Echo Sounders Open

Thomas C. Weber · 2021

A cell-averaged constant false alarm rate (CFAR) detector is described and applied to data collected with a multibeam echo sounder (MBES). The CFAR detector is designed specifically for transient targets observed with MBES, and operates un…

Shipboard Acoustic Observations of Flow Rate From a Seafloor‐Sourced Oil Spill Open

Scott Loranger, Thomas C. Weber · 2020

In 2004 a debris flow generated by Hurricane Ivan toppled an oil production platform in Mississippi Canyon lease block 20 (MC20). Between 2004 and the installation of a containment system in 2019 MC20 became an in situ laboratory for a wid…

Tracking the spatiotemporal variability of the oxic–anoxic interface in the Baltic Sea with broadband acoustics Open

Elizabeth Weidner, Christian Stranne, Jonas Hentati‐Sundberg, Thomas C. Weber, Larry A. Mayer , et al. · 2020

Anoxic zones, regions of the water column completely devoid of dissolved oxygen, occur in open oceans and coastal zones worldwide. The Baltic Sea is characterized by strong salinity-driven stratification, maintained by occasional water inf…

Tests of Acoustic Target Strength and Bubble Dissolution Models Using a Synthetic Bubble Generator Open

Kevin M. Rychert, Thomas C. Weber · 2019

To test methods used for converting observations of acoustic backscatter to estimates of the volume and transport of free gas escaping the seabed, a bubble generator has been constructed and used at sea. The bubble generator creates indivi…

AWESOME OCIM: A simple, flexible, and powerful tool for modeling elemental cycling in the oceans Open

Seth G. John, Hengdi Liang, Thomas C. Weber, Tim DeVries, François Primeau , et al. · 2019

Gas Bubble Forensics Team Surveils the New Zealand Ocean Open

Geoffroy Lamarche, Yves Le Gonidec, VL Lucieer, Yoann Ladroit, Thomas C. Weber , et al. · 2019

An international research group recorded the acoustic signatures of gas bubbles rising from a hydrothermal vent field to gather clues about greenhouse gases escaping into the atmosphere.

Broadband acoustic scattering from oblate hydrocarbon droplets Open

Scott Loranger, Geir Pedersen, Thomas C. Weber · 2019

Improved in situ quantification of oil in the marine environment is critical for informing models of fate and transport and evaluating the resiliency of marine communities to oil spills. Broadband acoustic backscatter has been used to quan…

External and internal grouping characteristics of juvenile walleye pollock in the Eastern Bering Sea Open

Sarah Stienessen, Christopher D. Wilson, Thomas C. Weber, Julia K. Parrish · 2019

Size and shape patterns of fish groups are collective outcomes of interactions among members. Consequently, group-level patterns are often affected when any member responds to changes in their internal state, external state, and environmen…

A wideband acoustic method for direct assessment of bubble-mediated methane flux Open

Elizabeth Weidner, Thomas C. Weber, Larry A. Mayer, Martin Jakobsson, Denis Chernykh , et al. · 2018

Acoustically relevant properties of four crude oils at oceanographic temperatures and pressures Open

Scott Loranger, Christopher Bassett, Justin P. Cole, Bret Boyle, Thomas C. Weber · 2018

Inversions of models of broadband acoustic scattering to detect and quantify weakly scattering targets, such as oil droplets in seawater, require precise knowledge of the physical properties that determine scattering. When the characterist…

Improved Visualization of Hydroacoustic Plumes Using the Split-Beam Aperture Coherence Open

Ann Elisabeth Albright Blomberg, Thomas C. Weber, Andreas Austeng · 2018

Natural seepage of methane into the oceans is considerable, and plays a role in the global carbon cycle. Estimating the amount of this greenhouse gas entering the water column is important in order to understand their environmental impact.…

Acoustic mapping of mixed layer depth Open

Christian Stranne, Larry A. Mayer, Martin Jakobsson, Elizabeth Weidner, Kevin Jerram , et al. · 2018

The ocean surface mixed layer is a nearly universal feature of the world oceans. Variations in the depth of the mixed layer (MLD) influences the exchange of heat, fresh water (through evaporation), and gases between the atmosphere and the …

Acoustic mapping of mixed layer depth Open

Christian Stranne, Larry A. Mayer, Martin Jakobsson, Elizabeth Weidner, Kevin Jerram , et al. · 2018

The ocean surface mixed layer is a nearly universal feature of the world oceans. The depth of the mixed layer (MLD) influences the exchange of heat and gases between the atmosphere and the ocean and constitutes one of the major factors con…

Supplementary material to "Acoustic mapping of mixed layer depth" Open

Christian Stranne, Larry A. Mayer, Martin Jakobsson, Elizabeth Weidner, Kevin Jerram , et al. · 2018

Acoustic tracking of mixed layer depth -Supplementary MaterialFigure S1.Example of a CTD station without a well-defined mixed layer (blue category).a CTD profiles of temperature (blue) and salinity (red).b reflection coefficient profile de…

Quantitative ocean-column acoustic imaging over the Calypso Hydrothermal Vent Field, Bay of Plenty: first results from R.V. Tangaroa TAN1806-QUOI Voyage Open

Geoffroy Lamarche, Yoann Ladroit, Yves Le Gonidec, VL Lucieer, Thomas C. Weber , et al. · 2018

The aim of the TAN1806-QUOI (Quantitative Ocean-Column Imaging using hydroacoustics) voyage on RV Tangaroa was to improved methods to characterise bubbles in the water column originating from seafloor targets such as cold gas seeps …

Toward a standard line for use in multibeam echo sounder calibration Open

Thomas C. Weber, Glen Rice, Mike J. Smith · 2017

A procedure is suggested in which a relative calibration for the intensity output of a multibeam echo sounder (MBES) can be performed. This procedure identifies a common survey line (i.e., a standard line), over which acoustic backscatter …

Acoustic Mapping of Thermohaline Staircases in the Arctic Ocean Open

Christian Stranne, Larry A. Mayer, Thomas C. Weber, Barry Ruddick, Martin Jakobsson , et al. · 2017

An extended surface target for high-frequency multibeam echo sounder calibration Open

John Heaton, Glen Rice, Thomas C. Weber · 2017

An extended calibration target has been developed for calibrating the intensity output of a multibeam echo sounder (MBES). The target was constructed of chain links arranged similar to a curtain, providing an extended surface target with a…

Determining the flux of methane into <span>H</span>udson <span>C</span>anyon at the edge of methane clathrate hydrate stability Open

A. Weinstein, L. C. Navarrete, C. Ruppel, Thomas C. Weber, Mihai Leonte , et al. · 2016

Methane seeps were investigated in Hudson Canyon, the largest shelf‐break canyon on the northern U.S. Atlantic Margin. The seeps investigated are located at or updip of the nominal limit of methane clathrate hydrate stability. The acoustic…

Observing the ocean interior in support of integrated management Open

Verena M. Trenkel, Nils Olav Handegard, Thomas C. Weber · 2016

Active- and passive-acoustic methods are widely used tools for observing, monitoring, and understanding marine ecosystems. From 25 to 28 May 2015, 214 scientists from 31 nations gathered for an ICES symposium on Marine Ecosystem Acoustics …

Ephemerality of discrete methane vents in lake sediments Open

Benjamin P. Scandella, Liam Pillsbury, Thomas C. Weber, C. Ruppel, Harold F. Hemond , et al. · 2016

Methane is a potent greenhouse gas whose emission from sediments in inland waters and shallow oceans may both contribute to global warming and be exacerbated by it. The fraction of methane emitted by sediments that bypasses dissolution in …

Backscatter measurements by seafloor‐mapping sonars. Guidelines and Recommendations Open

Xavier Lurton, Geoffroy Lamarche, Craig J. Brown, VL Lucieer, Glen Rice , et al. · 2015

Marine scientists have long recognized the potential of using remotely‐sensed data as a proxy of biophysical indicators. Such data are most often acquired using sonar systems, since acoustic waves are the most suitable mechanism for transm…

Split-beam echo sounder observations of natural methane seep variability in the northern Gulf of Mexico Open

Kevin Jerram, Thomas C. Weber, Jonathan Beaudoin · 2015

A method for positioning and characterizing plumes of bubbles from marine gas seeps using an 18 kHz scientific split-beam echo sounder (SBES) was developed and applied to acoustic observations of plumes of presumed methane gas bubbles orig…

Seafloor backscatter acquisition and processing: best practice and recommendations by the Geohab Backscatter Working Group Open

Xavier Lurton, Geoffroy Lamarche, Craig J. Brown, Erin Heffron, VL Lucieer , et al. · 2015

Calibration of acoustic instruments. Open

David A. Demer, Laurent Berger, Matteo Bernasconi, Eckhard Bethke, Kevin M. Boswell , et al. · 2015

Acoustic sampling has long been a standard survey tool for estimating the abundance and distribution of fish, zooplankton, and their seabed habitat (Kimura, 1929; Sund, 1935; Holliday, 1972a; Nielson et al., 1980). Typically, acoustic surv…

Multibeam sonar backscatter data acquisition and processing: guidelines and recommendations from the GEOHAB Backscatter Working Group Open

Erin Heffron, Xavier Lurton, Geoffroy Lamarche, Craig J. Brown, VL Lucieer , et al. · 2015

Backscatter data acquired with multibeam sonars are now commonly used for the remote geological interpretation of the seabed. The systems hardware, software, and processing methods and tools have grown in numbers and improved over the year…

Working toward guidelines and recommendations for backscatter measurements by seafloor mapping multibeam echosounders – the GeoHab backscatter working group Open

Erin Heffron, Xavier Lurton, Geoffroy Lamarche, Craig J. Brown, VL Lucieer , et al. · 2015

The 2013 Marine Geological and Biological Habitat Mapping (GeoHab) meeting hosted a workshop organized by QPS on "Multibeam Backscatter State of the Technology, Tools & Techniques". The workshop participants all recognized the need for bet…

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