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Seals from Space: Developing techniques to use satellite remote sensing to census pack-ice seals in the Prydz Bay region of East Antarctica

Australian Antarctic Data Centre
SOUTHWELL, COLIN ; HINDELL, MARK ; MCMAHON, CLIVE
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ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rfr_id=info%3Asid%2FANDS&rft_id=info:doi10.4225/15/58881bdccbd17&rft.title=Seals from Space: Developing techniques to use satellite remote sensing to census pack-ice seals in the Prydz Bay region of East Antarctica&rft.identifier=10.4225/15/58881bdccbd17&rft.publisher=Australian Antarctic Data Centre&rft.description=Despite being a ubiquitous and abundant component of the Southern Ocean ecosystem, pack-ice seals (crabeater, Ross and leopard seals) are notoriously difficult to census as they are sparsely distributed over large regions of remote pack-ice. Historically, population censuses have been made from ship- or helicopter-based surveys, which are expensive and logistically difficult, and this inevitably leads to data which are limited, in time and space. High resolution images allow us now to accurately census seals e.g. elephant and Weddell seals at unprecedented spatial and temporal scales. Using this technology promises to provide regular estimates of the numbers of pack-ice seals in important regions such as Prydz Bay This study will develop techniques to survey pack-ice seals from high resolution satellite images, including automatic detection functions and a preliminary habitat model based on the characteristics of the ice contained in the images.&rft.creator=SOUTHWELL, COLIN &rft.creator=HINDELL, MARK &rft.creator=MCMAHON, CLIVE &rft.date=2017&rft.coverage=northlimit=-65.10984; southlimit=-69.70513; westlimit=67.76367; eastLimit=81.65039; projection=WGS84&rft.coverage=northlimit=-65.10984; southlimit=-69.70513; westlimit=67.76367; eastLimit=81.65039; projection=WGS84&rft_rights=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_4328_satellite_seals when using these data.&rft_subject=biota&rft_subject=oceans&rft_subject=SEALS/SEA LIONS/WALRUSES&rft_subject=EARTH SCIENCE&rft_subject=BIOLOGICAL CLASSIFICATION&rft_subject=ANIMALS/VERTEBRATES&rft_subject=MAMMALS&rft_subject=CARNIVORES&rft_subject=PACK ICE&rft_subject=CRYOSPHERE&rft_subject=SEA ICE&rft_subject=Satellite Imagery&rft_subject=Pack-ice seals&rft_subject=CAMERAS&rft_subject=SATELLITES&rft_subject=WORLDVIEW-2&rft_subject=GEOGRAPHIC REGION > POLAR&rft_subject=CONTINENT > ANTARCTICA&rft_subject=OCEAN > SOUTHERN OCEAN > Prydz Bay&rft_place=Hobart&rft.type=dataset&rft.language=English Access the data
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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_4328_satellite_seals when using these data.

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These data are publicly available for download from the provided URL. The actual satellite imagery has not been made available, and is held by the Australian Antarctic Data Centre for copyright reasons.

Brief description

Despite being a ubiquitous and abundant component of the Southern Ocean ecosystem, pack-ice seals (crabeater, Ross and leopard seals) are notoriously difficult to census as they are sparsely distributed over large regions of remote pack-ice. Historically, population censuses have been made from ship- or helicopter-based surveys, which are expensive and logistically difficult, and this inevitably leads to data which are limited, in time and space. High resolution images allow us now to accurately census seals e.g. elephant and Weddell seals at unprecedented spatial and temporal scales. Using this technology promises to provide regular estimates of the numbers of pack-ice seals in important regions such as Prydz Bay This study will develop techniques to survey pack-ice seals from high resolution satellite images, including automatic detection functions and a preliminary habitat model based on the characteristics of the ice contained in the images.

Issued: 2017-01-24

Data time period: 2015-11-01 to 2017-01-01

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81.65039,-65.10984 81.65039,-69.70513 67.76367,-69.70513 67.76367,-65.10984 81.65039,-65.10984

74.70703,-67.407485

text: northlimit=-65.10984; southlimit=-69.70513; westlimit=67.76367; eastLimit=81.65039; projection=WGS84

Subjects
ANIMALS/VERTEBRATES | BIOLOGICAL CLASSIFICATION | CAMERAS | CARNIVORES | CONTINENT > ANTARCTICA | CRYOSPHERE | EARTH SCIENCE | GEOGRAPHIC REGION > POLAR | MAMMALS | OCEAN > SOUTHERN OCEAN > Prydz Bay | PACK ICE | Pack-ice seals | SATELLITES | SEA ICE | SEALS/SEA LIONS/WALRUSES | Satellite Imagery | WORLDVIEW-2 | biota | oceans |

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AU-ANL:PEAU : http://nla.gov.au/nla.party-617536

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