Bathymetric grid of Macquarie Island Region (2004)
This metadata record is a modified child record of an original parent record originating from custodians of data associated with Geoscience Australia (The identifier of the parent record is ANZCW0703006701, and can be found on the Australian Spatial Data Directory website - see the URL given below)....
Other Authors: | , , , , , , , |
---|---|
Format: | Dataset |
Language: | unknown |
Published: |
Australian Antarctic Data Centre
|
Subjects: | |
Online Access: | https://researchdata.ands.org.au/bathymetric-grid-macquarie-region-2004/698777 https://data.aad.gov.au/metadata/records/AADC_Macquarie_bathy_grid |
id |
ftands:oai:ands.org.au::698777 |
---|---|
record_format |
openpolar |
spelling |
ftands:oai:ands.org.au::698777 2023-05-15T17:09:55+02:00 Bathymetric grid of Macquarie Island Region (2004) Australian Antarctic Data Centre (publisher) BROLSMA, HENK (processor) Geoscience Australia (originator) SEXTON, MIKE (hasPrincipalInvestigator) SEXTON, MIKE (processor) SMITH, DAVID T. (processor) TULLY, MORGAN (hasPrincipalInvestigator) TULLY, MORGAN (processor) Spatial: northlimit=-48.0; southlimit=-62.0; westlimit=151.0; eastLimit=167.0; projection=WGS84 Temporal: From 2004-03-01 to 2004-06-01 https://researchdata.ands.org.au/bathymetric-grid-macquarie-region-2004/698777 https://data.aad.gov.au/metadata/records/AADC_Macquarie_bathy_grid unknown Australian Antarctic Data Centre https://researchdata.ands.org.au/bathymetric-grid-macquarie-region-2004/698777 626787ef-091b-4aae-a7e3-2ff35c458639 AADC_Macquarie_bathy_grid https://data.aad.gov.au/metadata/records/AADC_Macquarie_bathy_grid Australian Antarctic Data Centre oceans WATER DEPTH EARTH SCIENCE BATHYMETRY/SEAFLOOR TOPOGRAPHY MARINE GEOPHYSICS BATHYMETRY Macquarie Island swath grid depth MSBS > Multibeam Swath Bathymetry System SHIPS SATELLITES OCEAN > SOUTHERN OCEAN SOUTHERN OCEAN > GEOGRAPHIC REGION > POLAR dataset ftands 2020-01-05T21:15:28Z This metadata record is a modified child record of an original parent record originating from custodians of data associated with Geoscience Australia (The identifier of the parent record is ANZCW0703006701, and can be found on the Australian Spatial Data Directory website - see the URL given below). A bathymetric grid of the Macquarie Island Region (Longitudes 151 E and 167 E, Latitudes 48 S and 62 S) was produced. In doing so, the individual datasets used were closely examined and any deficiencies noted for further follow up or were rectified immediately and the changes documented. These datasets include modern multibeam data, coastline data obtained from georeferenced SPOT imagery, hydrographic quality data, echosounder data from research and fishing vessels and satellite derived bathymetric data. A hierarchical system was employed whereby the best and most extensive datasets were gridded first and applied as a mask to the next best dataset. A new masking grid would be formed from these datasets to pass non-overlapping data in the next best dataset. This procedure was employed until finally the satellite data were masked. All the various levels of masked data were then brought together by the gridding algorithm (Intrepid and Desmond Fitzgerald Associates) and an ERMapper format grid produced. A grid cell size of 0.00225 (nominal 250m) was used with many iterations of minimum curvature gridding and several passes of smoothing. The final grid is available in geotiff, ArcInfo ascii and xyz text formats. A detailed report of the work completed is also available. Dataset Macquarie Island Southern Ocean Research Data Australia (Australian National Data Service - ANDS) Fitzgerald ENVELOPE(-111.602,-111.602,59.850,59.850) Southern Ocean ENVELOPE(151.0,167.0,-48.0,-62.0) |
institution |
Open Polar |
collection |
Research Data Australia (Australian National Data Service - ANDS) |
op_collection_id |
ftands |
language |
unknown |
topic |
oceans WATER DEPTH EARTH SCIENCE BATHYMETRY/SEAFLOOR TOPOGRAPHY MARINE GEOPHYSICS BATHYMETRY Macquarie Island swath grid depth MSBS > Multibeam Swath Bathymetry System SHIPS SATELLITES OCEAN > SOUTHERN OCEAN SOUTHERN OCEAN > GEOGRAPHIC REGION > POLAR |
spellingShingle |
oceans WATER DEPTH EARTH SCIENCE BATHYMETRY/SEAFLOOR TOPOGRAPHY MARINE GEOPHYSICS BATHYMETRY Macquarie Island swath grid depth MSBS > Multibeam Swath Bathymetry System SHIPS SATELLITES OCEAN > SOUTHERN OCEAN SOUTHERN OCEAN > GEOGRAPHIC REGION > POLAR Bathymetric grid of Macquarie Island Region (2004) |
topic_facet |
oceans WATER DEPTH EARTH SCIENCE BATHYMETRY/SEAFLOOR TOPOGRAPHY MARINE GEOPHYSICS BATHYMETRY Macquarie Island swath grid depth MSBS > Multibeam Swath Bathymetry System SHIPS SATELLITES OCEAN > SOUTHERN OCEAN SOUTHERN OCEAN > GEOGRAPHIC REGION > POLAR |
description |
This metadata record is a modified child record of an original parent record originating from custodians of data associated with Geoscience Australia (The identifier of the parent record is ANZCW0703006701, and can be found on the Australian Spatial Data Directory website - see the URL given below). A bathymetric grid of the Macquarie Island Region (Longitudes 151 E and 167 E, Latitudes 48 S and 62 S) was produced. In doing so, the individual datasets used were closely examined and any deficiencies noted for further follow up or were rectified immediately and the changes documented. These datasets include modern multibeam data, coastline data obtained from georeferenced SPOT imagery, hydrographic quality data, echosounder data from research and fishing vessels and satellite derived bathymetric data. A hierarchical system was employed whereby the best and most extensive datasets were gridded first and applied as a mask to the next best dataset. A new masking grid would be formed from these datasets to pass non-overlapping data in the next best dataset. This procedure was employed until finally the satellite data were masked. All the various levels of masked data were then brought together by the gridding algorithm (Intrepid and Desmond Fitzgerald Associates) and an ERMapper format grid produced. A grid cell size of 0.00225 (nominal 250m) was used with many iterations of minimum curvature gridding and several passes of smoothing. The final grid is available in geotiff, ArcInfo ascii and xyz text formats. A detailed report of the work completed is also available. |
author2 |
Australian Antarctic Data Centre (publisher) BROLSMA, HENK (processor) Geoscience Australia (originator) SEXTON, MIKE (hasPrincipalInvestigator) SEXTON, MIKE (processor) SMITH, DAVID T. (processor) TULLY, MORGAN (hasPrincipalInvestigator) TULLY, MORGAN (processor) |
format |
Dataset |
title |
Bathymetric grid of Macquarie Island Region (2004) |
title_short |
Bathymetric grid of Macquarie Island Region (2004) |
title_full |
Bathymetric grid of Macquarie Island Region (2004) |
title_fullStr |
Bathymetric grid of Macquarie Island Region (2004) |
title_full_unstemmed |
Bathymetric grid of Macquarie Island Region (2004) |
title_sort |
bathymetric grid of macquarie island region (2004) |
publisher |
Australian Antarctic Data Centre |
url |
https://researchdata.ands.org.au/bathymetric-grid-macquarie-region-2004/698777 https://data.aad.gov.au/metadata/records/AADC_Macquarie_bathy_grid |
op_coverage |
Spatial: northlimit=-48.0; southlimit=-62.0; westlimit=151.0; eastLimit=167.0; projection=WGS84 Temporal: From 2004-03-01 to 2004-06-01 |
long_lat |
ENVELOPE(-111.602,-111.602,59.850,59.850) ENVELOPE(151.0,167.0,-48.0,-62.0) |
geographic |
Fitzgerald Southern Ocean |
geographic_facet |
Fitzgerald Southern Ocean |
genre |
Macquarie Island Southern Ocean |
genre_facet |
Macquarie Island Southern Ocean |
op_source |
Australian Antarctic Data Centre |
op_relation |
https://researchdata.ands.org.au/bathymetric-grid-macquarie-region-2004/698777 626787ef-091b-4aae-a7e3-2ff35c458639 AADC_Macquarie_bathy_grid https://data.aad.gov.au/metadata/records/AADC_Macquarie_bathy_grid |
_version_ |
1766066284873646080 |