Preliminary acoustic data analysis from Littoral Acoustic Demonstration Center 2007 (LADC07) passive acoustic experiment

2007 ◽  
Vol 122 (5) ◽  
pp. 3002
Author(s):  
Natalia A. Sidorovskaia ◽  
George E. Ioup ◽  
Juliette W. Ioup ◽  
Arslan M. Tashmukhambetov ◽  
Grayson H. Rayborn ◽  
...  
Keyword(s):  
Data Analysis ◽  
Acoustic Data ◽  
Passive Acoustic

scholarly journals Underwater Soundscape Monitoring and Fish Bioacoustics: A Review

Fishes ◽  
2018 ◽  
Vol 3 (3) ◽  
pp. 36 ◽  
Author(s):  
Adelaide Lindseth ◽  
Phillip Lobel
Keyword(s):  
Data Analysis ◽  
Data Storage ◽  
Sampling Methods ◽  
Acoustic Monitoring ◽  
Passive Acoustic Monitoring ◽  
Acoustic Data ◽  
Soundscape Ecology ◽  
Ambient Sound ◽  
Passive Acoustic

Soundscape ecology is a rapidly growing field with approximately 93% of all scientific articles on this topic having been published since 2010 (total about 610 publications since 1985). Current acoustic technology is also advancing rapidly, enabling new devices with voluminous data storage and automatic signal detection to define sounds. Future uses of passive acoustic monitoring (PAM) include biodiversity assessments, monitoring habitat health, and locating spawning fishes. This paper provides a review of ambient sound and soundscape ecology, fish acoustic monitoring, current recording and sampling methods used in long-term PAM, and parameters/metrics used in acoustic data analysis.

scholarly journals Multi-year presence of humpback whales in the Atlantic sector of the Southern Ocean but not during El Niño

2021 ◽  
Vol 4 (1) ◽  
Author(s):  
Elena Schall ◽  
Karolin Thomisch ◽  
Olaf Boebel ◽  
Gabriele Gerlach ◽  
Sari Mangia Woods ◽  
...  
Keyword(s):  
Southern Ocean ◽  
El Niño ◽  
El Nino ◽  
Humpback Whales ◽  
Low Latitude ◽  
Sea Ice Extent ◽  
Atlantic Sector ◽  
Acoustic Data ◽  
Breeding Grounds ◽  
Passive Acoustic

AbstractHumpback whales are thought to undertake annual migrations between their low latitude breeding grounds and high latitude feeding grounds. However, under specific conditions, humpback whales sometimes change their migratory destination or skip migration overall. Here we document the surprising persistent presence of humpback whales in the Atlantic sector of the Southern Ocean during five years (2011, 2012, 2013, 2017, and 2018) using passive acoustic data. However, in the El Niño years 2015 and 2016, humpback whales were virtually absent. Our data show that humpback whales are systematically present in the Atlantic sector of the Southern Ocean and suggest that these whales are particularly sensitive to climate oscillations which have profound effects on winds, sea ice extent, primary production, and especially krill productivity.

Holistic Approach in Integrating Passive Acoustic Logs with Static and Dynamic Data Improved Wells Integrity Understanding at Field Scale

2021 ◽  
Author(s):  
Fuad Atakishiyev ◽  
Rizvan Ramazanov ◽  
Fergus Allan ◽  
Adrian Zett
Keyword(s):  
Risk Mitigation ◽  
Single Point ◽  
Optimal Decision ◽  
Dynamic Data ◽  
Safe Delivery ◽  
Acoustic Data ◽  
Dynamic Events ◽  
Well Integrity ◽  
Conventional Methods ◽  
Passive Acoustic

Abstract Proactive well diagnostic surveillance helps with safe delivery of production by effective well management and risk mitigation. The objective of the paper is to demonstrate the data analytics approach utilizing passive acoustic technology in combination with conventional methods of detecting low magnitude dynamic events behind single or multiple casing strings. The results of integrated interpretation of passive acoustic wireline technology with the data from different sources helped to make optimal decision. Traditional well integrity diagnostic includes temperature and passive acoustic data analysis that are associated with high uncertainty. A newer generation of array passive acoustic technology with enhanced sensitivity capabilities was deployed offshore Azerbaijan. A combination of array passive acoustics data, single point temperature and distributed fiber optic data have been acquired during a multi-well campaign. Extensive review of well integrity history, downhole and surface gauge data incorporated with passive acoustic data from arrays of spectral sensors in time and depth domain helped to refine the process and evolve into a unique interpretation methodology. The comprehensive interpretation accounted for integration of all available static and dynamic data such as: fluids and formation pressure distribution along the borehole, cement bond logs evaluation, annuli pressure and temperature, production and downhole gauge measurements, fibre optic data, temperature and passive acoustic logs. This helped to understand the low scale dynamic events behind the casing and make an informed decision on safe and reliable well operations. The sensitivity of array passive acoustic technology proved successful in detecting subtle acoustic events where conventional methods failed or had limited success. Successful results have been achieved by customizing the logging program using a multiple well evolutionary approach that improved data quality and saved rig time. Interpretation and decisions derived from each well involved multi-disciplinary well review panel sessions with specialists from subsurface & geohazards, drilling & completions, production & operations departments. Case studies presented in this paper describe the interpretation approach of highly sensitive array passive acoustic sensors in combination with available static and dynamic point and distributed data. The logging program and interpretation approach used in this article could be considered as a basis for future applications in wells with similar design.

Novel software for deep-learning based acoustic data analysis

2021 ◽  
Vol 150 (4) ◽  
pp. A164-A164
Author(s):  
Fabio Frazao ◽  
Steven Bergner ◽  
Mike Dowd ◽  
Ruth Joy ◽  
Oliver S. Kirsebom ◽  
...  
Keyword(s):  
Deep Learning ◽  
Data Analysis ◽  
Acoustic Data

Acoustic data analysis for underwater archaeological sites detection and mapping by means of autonomous underwater vehicles

2015 ◽  
Author(s):  
Benedetto Allotta ◽  
Riccardo Costanzi ◽  
Alessandro Ridolfi ◽  
Maria Antonietta Pascali ◽  
Marco Reggiannini ◽  
...  
Keyword(s):  
Data Analysis ◽  
Autonomous Underwater Vehicles ◽  
Underwater Vehicles ◽  
Archaeological Sites ◽  
Acoustic Data

Determining the detection function of passive acoustic data loggers for porpoises using a large hydrophone array

2014 ◽  
Vol 135 (4) ◽  
pp. 2369-2369 ◽  
Author(s):  
Jens C. Koblitz ◽  
Katharina Brundiers ◽  
Mario Kost ◽  
Louise Burt ◽  
Len Thomas ◽  
...  
Keyword(s):  
Detection Function ◽  
Acoustic Data ◽  
Data Loggers ◽  
Passive Acoustic ◽  
Hydrophone Array

Use of a novel acoustic 'listening' method for detecting pump impellor strike on downstream migrating eels

2020 ◽  
Vol 71 (6) ◽  
pp. 571
Author(s):  
B. O. David ◽  
M. Lake ◽  
M. K. Pine ◽  
J. Smith ◽  
J. A. T. Boubée
Keyword(s):  
Test Site ◽  
Acoustic Properties ◽  
Fish Mortality ◽  
Management Options ◽  
Acoustic Data ◽  
Goldfish Carassius Auratus ◽  
Pump Station ◽  
Pumping Stations ◽  
Global Issue ◽  
Passive Acoustic

Fish mortality through floodplain pumping stations is a recognised global issue, but few studies have quantified the degree of mortality that occurs during pumping. We investigated the potential of passive acoustic monitoring (PAM) as a tool to record sounds made by fish and their likely mortality as they passed through pumps during downstream migration. The acoustic properties made by freshly killed eels that were fed through an existing pump station were compared to those made by goldfish (Carassius auratus). Processing and analysis of acoustic data enabled the development of an ‘eel-specific’ algorithm for detecting eels passing through the pumping station. The duration of sound and filtered intensity were useful characteristics enabling reliable separation of the two fish species. The algorithm was then applied retrospectively to soundscape recordings obtained during a typical eel migration period at the test site. Although the tool is unlikely to be able to differentiate the sound of goldfish from ‘other’ potential sounds of short duration (e.g. sticks), differentiating eels from other sounds was demonstrated. We conclude that this tool has considerable potential for improving the understanding of the timing of eel migrations and likely mortality through pumping stations. The tool may also be used to inform the development of both remote and manual pump management options for reducing pump-related eel mortality.

scholarly journals Exploring movement patterns and changing distributions of baleen whales in the western North Atlantic using a decade of passive acoustic data

2020 ◽  
Vol 26 (9) ◽  
pp. 4812-4840 ◽  
Author(s):  
Genevieve E. Davis ◽  
Mark F. Baumgartner ◽  
Peter J. Corkeron ◽  
Joel Bell ◽  
Catherine Berchok ◽  
...  
Keyword(s):  
North Atlantic ◽  
Movement Patterns ◽  
Baleen Whales ◽  
Acoustic Data ◽  
Passive Acoustic

The Acoustical Presentation of Technical Information

1992 ◽  
Vol 22 (1) ◽  
pp. 39-52 ◽  
Author(s):  
George A. Barnett
Keyword(s):  
Data Analysis ◽  
Television Viewing ◽  
Technical Information ◽  
Acoustic Data ◽  
Acoustic Information ◽  
Potential Benefits ◽  
Scientists And Engineers

This article advocates listening to technical information in much the same way as scientists and engineers currently look at graphics in order to gain an understanding of the relations among variables. It specifies a number of potential benefits of this approach. 1) The ability to hear data may contribute to the greater understanding of the relationships that lie within data. This may lead to alternative theoretical interpretations and explanations. 2) Listening to the data may produce a greater long-term understanding. 3) It will facilitate the understanding of technical information by individuals whose dominant learning modality is acoustic rather than visual. 4) Acoustic data analysis is ideally suited for the analysis of processual data. The article provides a demonstration of the presentation of acoustic information with data on the frequency of television viewing, 1950–1988.

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