BROKE-West active acoustic data workflow

The attached file details the workflow for the processing and analysis of active acoustic data (Simrad EK60; 12, 38, 120 and 200 kHz) collected from RSV Aurora Australis during the 2006 BROKE-West voyage. The attached file is in Echoview(R) ( https://www.echoview.com/) version 8 format.

The Echoview file is suitable for working with fisheries acoustics, i.e. water column backscatter, data collected using a Simrad EK60 and the file is set-up to read 38, 120 and 200 kHz split-beam data. The file has operators to remove acoustic noise, e.g. spikes and dropped pings, and operators for removing surface noise and seabed echoes. Echoes arising from krill are isolated using the ‘dB-difference’ method recommended by CCAMLR. The Echoview file is set-up to export the results of krill echo integration as both intervals and swarms. Full details of the method are available in Jarvis et al. (2010) and the krill swarms methods are described in Bestley et al. (2017).

Simple

Identification info

Alternate title
BROKE-West active acoustic data workflow
Date (Publication)
2018-03-01
Edition
1
Citation identifier
Dataset DOI

Title
Information and documentation - Digital object identifier system
Date (Publication)
2012-04-23
Citation identifier
ISO 26324:2012

Citation identifier
doi:10.4225/15/5a977343db1b9

Originator

Kawaguchi, S. and Cox, M.

Publisher

Australian Antarctic Data Centre

Principal investigator

KAWAGUCHI, SO
Australian Antarctic Division
Channel Highway
Kingston
Tasmania
7050
Australia

Collaborator

KAWAGUCHI, SO
Australian Antarctic Division
Channel Highway
Kingston
Tasmania
7050
Australia

Collaborator

COX, MARTIN
Australian Antarctic Division
203 Channel Hwy
Kingston
TAS
7050
Australia
Name
CAASM Metadata
Website
https://data.aad.gov.au/metadata/records/AAS_4050_EK60

Purpose
The purpose of this file is to detail the workflow for krill identification and echo integration used during the BROKE-West survey. The file has the workflow for noise removal, surface and seabed echo removal, krill identification and echo integration.
Status
Completed

Custodian

AU/AADC > Australian Antarctic Data Centre, Australia - AADC, DATA OFFICER (DATA CENTER CONTACT)
Australian Antarctic Division
203 Channel Highway
Kingston
Tasmania
7050
Australia
Topic category
  • Biota
  • Oceans

Extent

N
S
E
W


Extent

Description
Temporal Coverage

Temporal extent

TimePeriod
2006-01-01 2006-03-01
Title
Acoustic characterisation of the broad-scale distribution and abundance of Antarctic krill (Euphausia superba) off East Antarctica (30-80 E) in January-March 2006
Date (Publication)
2010
Citation identifier
57

Author

Jarvis, T., Kelly, N., Kawaguchi, S., van Wijk, E., and Nicol, S.
Name
Deep Sea Research Part II: Topical Studies in Oceanography
Issue identification
9-10
Page
916-933
Title
Predicting krill swarm characteristics important for marine predators foraging off East Antarctica.
Date (Publication)
2017

Author

Bestley S, Raymond B, Gales NJ, Harcourt RG, Hindell MA, Jonsen ID, Nicol S, Peron C, Sumner MD, Weimerskirch H, Wotherspoon SJ, Cox M.J.
Name
Ecography
NASA/GCMD Earth Science Keywords
  • EARTH SCIENCE > OCEANS > OCEAN ACOUSTICS > ACOUSTIC SCATTERING
  • EARTH SCIENCE > OCEANS > AQUATIC SCIENCES > FISHERIES
  • EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > ANIMALS/INVERTEBRATES > ARTHROPODS > CRUSTACEANS > EUPHAUSIIDS (KRILL)
Keywords
  • ECHOVIEW
  • EK60
  • ACOUSTICS
  • HYDROACOUSTICS
NASA/GCMD Earth Science Keywords
  • ECHO SOUNDERS
NASA/GCMD Earth Science Keywords
  • R/V AA > R/V Aurora Australis
NASA/GCMD Earth Science Keywords
  • AMD/AU
  • AMD
  • CEOS
NASA/GCMD Earth Science Keywords
  • GEOGRAPHIC REGION > POLAR
  • OCEAN > SOUTHERN OCEAN
  • CONTINENT > ANTARCTICA

Resource constraints

Use limitation
This metadata record is publicly available.

Resource constraints

Access constraints
licence
Other constraints
These data are publicly available for download from the provided URL.

Resource constraints

File type
Portable Network Graphic
Linkage
Creative Commons by Attribution logo

Title
Attribution 4.0 International (CC BY 4.0)
Website
https://creativecommons.org/licenses/by/4.0/legalcode

Legal code for Creative Commons by Attribution 4.0 International license

Use constraints
licence
Other constraints
The primary methods in the Echoview file are provided in: Jarvis, T., Kelly, N., Kawaguchi, S., van Wijk, E., and Nicol, S. (2010). Acoustic characterisation of the broad-scale distribution and abundance of Antarctic krill (Euphausia superba) off East Antarctica (30-80 E) in January-March 2006. Deep Sea Research Part II: Topical Studies in Oceanography, 57(9-10), 916-933. The krill swarm methods are provided in: Bestley S, Raymond B, Gales NJ, Harcourt RG, Hindell MA, Jonsen ID, Nicol S, Peron C, Sumner MD, Weimerskirch H, Wotherspoon SJ, Cox M.J. (2017) Predicting krill swarm characteristics important for marine predators foraging off East Antarctica. Ecography. This data set conforms to the CCBY Attribution License (http://creativecommons.org/licenses/by/4.0/). Please follow instructions listed in the citation reference provided at http://data.aad.gov.au/aadc/metadata/citation.cfm?entry_id=AAS_4050_EK60 when using these data.
Language
English
Character encoding
UTF8

Distribution Information

Distributor

Distributor

AU/AADC > Australian Antarctic Data Centre, Australia - AADC, DATA OFFICER (DATA CENTER CONTACT)
Australian Antarctic Division
203 Channel Highway
Kingston
Tasmania
7050
Australia

Distributor

Fees
Free
Planned available datetime
2018-03-01T00:00:00
Units of distribution
kb
Transfer size
632
Distribution format
  • Echoview, Images

OnLine resource
GET DATA

Download the dataset

OnLine resource
PROJECT HOME PAGE

Public information for AAS project 4050

OnLine resource
VIEW RELATED INFORMATION

Citation reference for this metadata record and dataset.

OnLine resource
VIEW RELATED INFORMATION > GENERAL DOCUMENTATION

Echoview website

Resource lineage

Statement
There are no problems with the file, but a copy of the Echoview(R) software (https://www.echoview.com/) is required to open the file and an Echoview(R) license is necessary to access all the functionality in the file.
Hierarchy level
Dataset
Maintenance and update frequency
As needed
Maintenance note
2018-02-26 - record created by Martin Cox.

Metadata

Metadata identifier
string/AAS_4050_EK60

Language
English
Character encoding
UTF8

Author

COX, MARTIN
Australian Antarctic Division
203 Channel Hwy
Kingston
TAS
7050
Australia

Sponsor

Australian Antarctic Division

Owner

AADC

Type of resource

Resource scope
Dataset

Alternative metadata reference

Title
gov.nasa.gsfc.gcmd
Citation identifier
88f836d0-169f-4f5e-aac6-d6d739874e28

Alternative metadata reference

Title
gov.nasa.gsfc.gcmd
Date (Last Revision)
2021-11-17T12:22:29

Identifier

Description
metadata.extraction_date

Alternative metadata reference

Title
gov.nasa.gsfc.gcmd
Citation identifier
8.6

Metadata linkage
http://data.aad.gov.au/metadata/records/AAS_4050_EK60

Point of truth for the metadata record

Date info (Creation)
2018-02-26T00:00:00
Date info (Last Update)
2018-02-26

Metadata standard

Title
ISO 19115-3
Edition
2014
Other citation details
Version 1
Title
DIF to ISO 19115-1 Profile
 
 

Overviews

Spatial extent

N
S
E
W


Keywords


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