Echosounder data to assess patterns in krill density - voyage of the RV Tangaroa, 2015

Echosounder data were collected on a multidisciplinary research voyage conducted from the RV Tangaroa, operated by New Zealand’s National Institute of Water and Atmospheric Research Limited (NIWA). The voyage lasted 42 days, departing from Wellington, New Zealand on January 29th , 2015 and returning to the same port on 11th March 2015.

Active acoustic data were obtained continuously using a calibrated scientific echosounder (Simrad EK60, Horten, Norway). The echosounder operated at 38 and 120 kHz for the duration of the voyage with a pulse duration of 1.024 ms, a pulse repetition rate of one ping per second and a 7° beam width. The echosounder data here are a subset of that collected throughout the voyage and include only data from south of 65°S. This subset of data focuses on research questions pertaining to Antarctic blue whales and krill.

Simple

Identification info

Alternate title
Echosounder data to assess patterns in krill density - voyage of the RV Tangaroa, 2015
Date (Publication)
2020-11-12
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:10.26179/5def2698c7f02

Originator

O'Driscoll, R., Ladroit , Y., Cox, M. and Double, M.

Publisher

Australian Antarctic Data Centre

Principal investigator

O'DRISCOLL, RICHARD
National Institute of Water and Atmospheric Research Ltd (NIWA)
301 Evans Bay Parade
Wellington
New Zealand

Principal investigator

LADROIT, YOANN
National Institute of Water and Atmospheric Research Ltd (NIWA)
301 Evans Bay Parade
Wellington
New Zealand

Principal investigator

COX, MARTIN
Australian Antarctic Division
203 Channel Highway
Kingston
Tasmania
7050
Australia

Principal investigator

DOUBLE, MIKE
Australian Antarctic Division
203 Channel Highway
Kingston
Tasmania
7050
Ausrtralia

Collaborator

O'DRISCOLL, RICHARD
National Institute of Water and Atmospheric Research Ltd (NIWA)
301 Evans Bay Parade
Wellington
New Zealand

Collaborator

LADROIT, YOANN
National Institute of Water and Atmospheric Research Ltd (NIWA)
301 Evans Bay Parade
Wellington
New Zealand

Collaborator

COX, MARTIN
Australian Antarctic Division
203 Channel Highway
Kingston
Tasmania
7050
Australia
Name
CAASM Metadata
Website
https://data.aad.gov.au/metadata/records/AAS_4102_KrillAcoustics_2015

Purpose
Echosounder data were collected to investigate krill in the vicinity of, and demonstrably far from vocalising Antarctic blue whales. See Miller et al. 2019 (Sci. Rep. 9:16487; https://doi.org/10.1038/s41598-019-52792-4) for a more detailed description of these research questions.
Status
Completed

Custodian

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

Spatial resolution

Vertical sampling distance
0.1

Spatial resolution

Spatial resolution
2
Temporal resolution
PT1S
Topic category
  • Oceans
  • Biota

Extent

N
S
E
W


Extent

Description
Temporal Coverage

Temporal extent

TimePeriod
2015-02-02 2015-02-28

Extent

Description
Vertical Extent - Altitude

Vertical element

Minimum value
0
Maximum value
0
Identifier
urn:x-ogc:def:cs:EPSG:6499
Name
Vertical CS. Axis: height (H). Orientation: up. UoM: m.
Identifier
urn:x-ogc:def:axis:EPSG:114
Name
height

Extent

Description
Vertical Extent - Depth

Vertical element

Minimum value
5
Maximum value
300
Identifier
urn:x-ogc:def:cs:EPSG:6498
Name
Vertical CS. Axis: depth (D). Orientation: down. UoM: m.
Identifier
urn:x-ogc:def:axis:EPSG:113
Name
depth
Title
The characteristics of krill swarms in relation to aggregating Antarctic blue whales
Date (Publication)
2019
Citation identifier
9

Citation identifier
doi:10.1038/s41598-019-52792-4

Author

Miller, E.J., Potts, J.M., Cox, M.J. et al.
Name
Sci Rep
Page
16487
NASA/GCMD Earth Science Keywords
  • EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > ANIMALS/INVERTEBRATES > ARTHROPODS > CRUSTACEANS > EUPHAUSIIDS (KRILL)
  • EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > ANIMALS/VERTEBRATES > MAMMALS > CETACEANS > BALEEN WHALES
NASA/GCMD Earth Science Keywords
  • ECHO SOUNDERS
NASA/GCMD Earth Science Keywords
  • R/V TANGAROA
NASA/GCMD Earth Science Keywords
  • AMD
  • AMD/AU
  • CEOS
NASA/GCMD Earth Science Keywords
  • OCEAN > SOUTHERN OCEAN > ROSS SEA
  • OCEAN > SOUTHERN OCEAN
  • GEOGRAPHIC REGION > POLAR

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
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_4102_KrillAcoustics_2015 when using these data.
Language
English
Character encoding
UTF8

Distribution Information

Distributor

Distributor

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

Distributor

Fees
Free
Planned available datetime
2020-11-12T00:00:00
Units of distribution
GB
Transfer size
90.4
Distribution format
  • EK60

OnLine resource
GET DATA > DIRECT DOWNLOAD

Download the dataset.

OnLine resource
PROJECT HOME PAGE

Public information for AAS project AAS_4102

OnLine resource
VIEW RELATED INFORMATION

Citation reference for this metadata record and dataset.

Resource lineage

Statement
The quality of these data are good, and there were no problems with the dataset.
Hierarchy level
Dataset
Maintenance and update frequency
As needed
Maintenance note
2019-12-10 - record created by Brian Miller on behalf of Martin Cox. 2020-11-12 - record updated by Dave Connell to publicly release the data.

Metadata

Metadata identifier
string/AAS_4102_KrillAcoustics_2015

Language
English
Character encoding
UTF8

Author

MILLER, BRIAN SETH
Australian Antarctic Division
203 Channel Highway
Kingston
Tasmania
7050
Australia

Sponsor

Australian Antarctic Division

Owner

AADC
Title
Parent Metadata Record
Citation identifier
AAS_4102_2015_New_Zealand_Australia_Antarctic_Ecosystems_Voyage

Type of resource

Resource scope
Dataset

Alternative metadata reference

Title
gov.nasa.gsfc.gcmd
Citation identifier
471578c8-8ad7-4e00-99ad-41657214b426

Alternative metadata reference

Title
gov.nasa.gsfc.gcmd
Date (Last Revision)
2020-11-12T09:31:50

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_4102_KrillAcoustics_2015

Point of truth for the metadata record

Date info (Creation)
2019-12-10T00:00:00
Date info (Last Update)
2020-11-11

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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