Data

Deep Reef Substrata at Ningaloo Marine Park - 120m Transect

Commonwealth Scientific and Industrial Research Organisation
Collings, Simon ; Campbell, Norman ; Tonks, Mark ; Donovan, Anthea ; Keesing, John
Viewed: [[ro.stat.viewed]] Cited: [[ro.stat.cited]] Accessed: [[ro.stat.accessed]]
ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rfr_id=info%3Asid%2FANDS&rft_id=info:doi10.25919/8m65-7k26&rft.title=Deep Reef Substrata at Ningaloo Marine Park - 120m Transect&rft.identifier=https://doi.org/10.25919/8m65-7k26&rft.publisher=Commonwealth Scientific and Industrial Research Organisation&rft.description=Data from multibeam echosounder surveys taken as part of the Ningaloo Outlook project are classified into various seafloor cover types according to their hardness, rugosity and depth. The classifications are validated with towed video ground truth where it is available. Three AOIs are classified, two that were explicitly part of the Ningaloo Outlook Deep Reefs project and a third transect that was acquired incidentally while RV Investigator was transiting between locations. Due to the nature of the acquired data, two different approaches were taken for the classification, the first approach used multibeam backscatter angular response curves along with rugosity as input to a maximum likelihood classifier. The second approach used flattened multibeam backscatter (i.e. with the angular effects removed), along with rugosity as inputs to a Random Forest Classifier. Estimates of the accuracy of the classifiers are produced, where possible, along with area statistics for the different substratum observed in the classified maps.The maps are GeoTIFFs with text based classification keys.[Note:] 120m Transect onlyLineage: Please see the report:Classifying Deep Reef Substrata at Ningaloo Marine Park[2021]Simon Collings, Norm Campbell, Mark Tonks, Anthea Donovan and John Keesingand the attached document: AppendixE_ClassifiedMaps.docx&rft.creator=Collings, Simon &rft.creator=Campbell, Norman &rft.creator=Tonks, Mark &rft.creator=Donovan, Anthea &rft.creator=Keesing, John &rft.date=2021&rft.edition=v1&rft.coverage=westlimit=113.34832222222222; southlimit=-23.493358333333333; eastlimit=114.1731; northlimit=-21.62615277777778; projection=WGS84&rft_rights=Creative Commons Attribution 4.0 International Licence https://creativecommons.org/licenses/by/4.0/&rft_rights=Data is accessible online and may be reused in accordance with licence conditions&rft_rights=All Rights (including copyright) CSIRO 2021.&rft_subject=coastal&rft_subject=marine park&rft_subject=habitat&rft_subject=bathymetry&rft_subject=substrate&rft_subject=Sedimentology&rft_subject=Geology&rft_subject=EARTH SCIENCES&rft_subject=Conservation and biodiversity&rft_subject=Environmental management&rft_subject=ENVIRONMENTAL SCIENCES&rft_subject=Environmental management&rft_subject=Natural resource management&rft.type=dataset&rft.language=English Access the data
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Data is accessible online and may be reused in accordance with licence conditions

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Data from multibeam echosounder surveys taken as part of the Ningaloo Outlook project are classified into various seafloor cover types according to their hardness, rugosity and depth. The classifications are validated with towed video ground truth where it is available. Three AOIs are classified, two that were explicitly part of the Ningaloo Outlook Deep Reefs project and a third transect that was acquired incidentally while RV Investigator was transiting between locations. Due to the nature of the acquired data, two different approaches were taken for the classification, the first approach used multibeam backscatter angular response curves along with rugosity as input to a maximum likelihood classifier. The second approach used flattened multibeam backscatter (i.e. with the angular effects removed), along with rugosity as inputs to a Random Forest Classifier. Estimates of the accuracy of the classifiers are produced, where possible, along with area statistics for the different substratum observed in the classified maps.

The maps are GeoTIFFs with text based classification keys.
[Note:] 120m Transect only
Lineage: Please see the report:
"Classifying Deep Reef Substrata at Ningaloo Marine Park"
[2021]
Simon Collings, Norm Campbell, Mark Tonks, Anthea Donovan and John Keesing

and the attached document: AppendixE_ClassifiedMaps.docx

Available: 2021-03-30

Data time period: 2019-12-21 to 2020-02-01

This dataset is part of a larger collection

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114.1731,-21.62615 114.1731,-23.49336 113.34832,-23.49336 113.34832,-21.62615 114.1731,-21.62615

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Subjects
Conservation and Biodiversity | Earth Sciences | Environmental Sciences | Environmental Management | Environmental Management | Geology | Natural Resource Management | Sedimentology | bathymetry | coastal | habitat | marine park | substrate |

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Identifiers
ACN 633 798 857