Data

Southern Ocean pinnipeds provide bathymetric insights on the East Antarctic continental shelf

Australian Antarctic Division
Hindell, M.A. and McMahon, C. ; HINDELL, MARK A. ; MCMAHON, CLIVE
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:doi10.26179/s37r-xs33&rft.title=Southern Ocean pinnipeds provide bathymetric insights on the East Antarctic continental shelf&rft.identifier=10.26179/s37r-xs33&rft.publisher=Australian Antarctic Data Centre&rft.description=These are seal dive data used in the paper Southern Ocean pinnipeds provide bathymetric insights on the East Antarctic continental shelfThe seal dive depths provide new ocean depth information from over 500,000 individual dives from 265 seals on the East Antarctica continental shelf. The seal tags have a post-processed position uncertainty of 2-3 km, and provide transmitted depth data with a resolution of 10-25 m. About 25% of these seal dives were, on average, 220 m (sometimes over 1000 m) deeper than the interpolated seafloor in the International Bathymetric Chart of the Southern Ocean Version 2Each row is an individual dive collected by a SMRU CTD-SLDR and transmitted via system Argos. Max_depth is the maximum depth reached by the seal on that dive. The lons and lats are estimates of the seals location at the end of that dive and were calculated using the AniMotum package in R, which uses a state Space Model to estimate a location for each dive. The uncertainty of these locations has been quantified to be a median error of 3.2 km (95th percentile = 12.1 km), relative to near-simultaneous GPS locations for the same seals (Jonsen, I. D. et al. A continuous-time state-space model for rapid quality control of Argos locations from animal-borne tags. Move. Ecol. 8, 31 (2020). https://doi.org:10.1186/s40462-020-00217-7). The columns are: Id = seal identifierdate = date/time in YYYY-mm-dd HH:MM:SS formatlon = longitudelat = latitudemax_depth = maximum depth of the dive. Depths are negative to match the IBCSO dataibcso2 = IBCSO V2 bathymetry at that pointdfb = distance from bathymetry calculated as ibcso2-depth, so that a positive value indicates the dive was deeper than IBCSOspecies= species of seal that collected the data (Mirounga leonina or Leptonchtyes weddellii)Progress Code: onGoing&rft.creator=Hindell, M.A. and McMahon, C. &rft.creator=HINDELL, MARK A. &rft.creator=MCMAHON, CLIVE &rft.date=2023&rft.coverage=westlimit=19.6875; southlimit=-75; eastlimit=150.46875; northlimit=-57.70415&rft.coverage=westlimit=19.6875; southlimit=-75; eastlimit=150.46875; northlimit=-57.70415&rft_rights=These data are publicly available for download from the provided URL.&rft_rights=Attribution 4.0 International (CC BY 4.0) https://creativecommons.org/licenses/by/4.0/legalcode&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=ASAC_2695_Pinniped_diving_and_bathymetry when using these data.&rft_rights=This metadata record is publicly available.&rft_subject=oceans&rft_subject=biota&rft_subject=EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > ANIMALS/VERTEBRATES > MAMMALS > CARNIVORES > SEALS/SEA LIONS/WALRUSES&rft_subject=SEALS&rft_subject=DIVE DEPTH&rft_subject=ANIBOS&rft_subject=IMOS&rft_subject=ACEAS&rft_subject=BATHYMETRY&rft_subject=SMRU CTD-SRDL SATELLITE TRANSMITTER&rft_subject=CTD > Conductivity, Temperature, Depth&rft_subject=SATELLITES > SATELLITES&rft_subject=AMD&rft_subject=AMD/AU&rft_subject=CEOS&rft_subject=OCEAN > SOUTHERN OCEAN > EAST ANTARCTIC CONTINENTAL SHELF&rft_subject=GEOGRAPHIC REGION > POLAR&rft.type=dataset&rft.language=English Access the data
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Attribution 4.0 International (CC BY 4.0)
https://creativecommons.org/licenses/by/4.0/legalcode

These data are publicly available for download from the provided URL.

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=ASAC_2695_Pinniped_diving_and_bathymetry when using these data.

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These are seal dive data used in the paper "Southern Ocean pinnipeds provide bathymetric insights on the East Antarctic continental shelf"

The seal dive depths provide new ocean depth information from over 500,000 individual dives from 265 seals on the East Antarctica continental shelf. The seal tags have a post-processed position uncertainty of 2-3 km, and provide transmitted depth data with a resolution of 10-25 m. About 25% of these seal dives were, on average, 220 m (sometimes over 1000 m) deeper than the interpolated seafloor in the International Bathymetric Chart of the Southern Ocean Version 2

Each row is an individual dive collected by a SMRU CTD-SLDR and transmitted via system Argos. Max_depth is the maximum depth reached by the seal on that dive.

The lons and lats are estimates of the seals location at the end of that dive and were calculated using the AniMotum package in R, which uses a state Space Model to estimate a location for each dive. The uncertainty of these locations has been quantified to be a median error of 3.2 km (95th percentile = 12.1 km), relative to near-simultaneous GPS locations for the same seals (Jonsen, I. D. et al. A continuous-time state-space model for rapid quality control of Argos locations from animal-borne tags. Move. Ecol. 8, 31 (2020). https://doi.org:10.1186/s40462-020-00217-7).

The columns are:

Id = seal identifier
date = date/time in YYYY-mm-dd HH:MM:SS format
lon = longitude
lat = latitude
max_depth = maximum depth of the dive. Depths are negative to match the IBCSO data
ibcso2 = IBCSO V2 bathymetry at that point
dfb = distance from bathymetry calculated as ibcso2-depth, so that a positive value indicates the dive was deeper than IBCSO
species= species of seal that collected the data (Mirounga leonina or Leptonchtyes weddellii)

Lineage

Progress Code: onGoing

Notes

Purpose
To improve East Antarctic bathymetry using seal dive depth data.

Data time period: 1996-01-01 to 1997-12-31

Data time period: 2004-01-01 to 2021-12-31

This dataset is part of a larger collection

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150.46875,-57.70415 150.46875,-75 19.6875,-75 19.6875,-57.70415 150.46875,-57.70415

85.078125,-66.352075

text: westlimit=19.6875; southlimit=-75; eastlimit=150.46875; northlimit=-57.70415

Subjects
ACEAS | AMD | AMD/AU | ANIBOS | BATHYMETRY | CEOS | CTD > Conductivity, Temperature, Depth | DIVE DEPTH | EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > ANIMALS/VERTEBRATES > MAMMALS > CARNIVORES > SEALS/SEA LIONS/WALRUSES | GEOGRAPHIC REGION > POLAR | IMOS | OCEAN > SOUTHERN OCEAN > EAST ANTARCTIC CONTINENTAL SHELF | SATELLITES > SATELLITES | SEALS | SMRU CTD-SRDL SATELLITE TRANSMITTER | biota | oceans |

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Other Information
Download the dataset. (GET DATA > DIRECT DOWNLOAD)

url : https://data.aad.gov.au/eds/5640/download

Public information for AAS project 2695 (PROJECT HOME PAGE)

url : https://projects.aad.gov.au/report_project_public.cfm?project_no=2695

Citation reference for this metadata record and dataset. (VIEW RELATED INFORMATION)

url : https://data.aad.gov.au/aadc/metadata/citation.cfm?entry_id=ASAC_2695_Pinniped_diving_and_bathymetry

Identifiers
ACN 633 798 857