Data

Revisions to Holme Bay coastline and approaches to Mawson

Australian Antarctic Division
Doust, S.J. ; DOUST, SUSAN
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=http://data.aad.gov.au/metadata/Mawson_coastline_approach&rft.title=Revisions to Holme Bay coastline and approaches to Mawson&rft.identifier=http://data.aad.gov.au/metadata/Mawson_coastline_approach&rft.publisher=Australian Antarctic Data Centre&rft.description=This data set includes revisions of coastline data for the Holme Bay region and approaches to Mawson. Revised data were generated by digitising coastline and associated features from newly available satellite imagery that was predominantly ice free. In ice-free imagery, island coastlines could be clearly delineated and it was also possible to see marine near-surface features in some areas e.g. submerged rock. Digitising work in ArcGIS Pro included modifying or replacing coastal features to match the new ice-free imagery as well as expanding the dataset to include missing features e.g. smaller islands/rocks and near-surface features. Some satellite images that did have sea ice were also used to confirm the presence of smaller features such as offshore/near-surface rocks, as disruptions in the sea ice surface caused by these features were clearly visible. Satellite images used are noted in the 'SOURCE' field in the data set. The data is available as a polygon feature class in a GeoPackage.Coordinate system used for this region was WGS1984 UTM Zone 41S.Progress Code: onGoingStatement: The coastline was digitised at a resolution of 1:1000. GeoPackage (GPKG) is an open, non-proprietary, platform-independent and standards-based data format for geographic information systems built as a set of conventions over a SQLite database. Defined by the Open Geospatial Consortium (OGC).&rft.creator=Doust, S.J. &rft.creator=DOUST, SUSAN &rft.date=2024&rft.coverage=westlimit=62.6605123; southlimit=-67.6213341; eastlimit=63.10298; northlimit=-67.3575995&rft.coverage=westlimit=62.6605123; southlimit=-67.6213341; eastlimit=63.10298; northlimit=-67.3575995&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=Mawson_coastline_approach when using these data.&rft_rights=This metadata record is publicly available.&rft_subject=imageryBaseMapsEarthCover&rft_subject=EARTH SCIENCE > OCEANS > COASTAL PROCESSES > SHORELINES > SHORELINE MAPPING&rft_subject=SATELLITE IMAGERY&rft_subject=GEOGRAPHIC INFORMATION SYSTEM&rft_subject=CAMERAS&rft_subject=Computer > Computer&rft_subject=SATELLITES > SATELLITES&rft_subject=AMD&rft_subject=AMD/AU&rft_subject=CEOS&rft_subject=CONTINENT > ANTARCTICA > MAWSON&rft_subject=GEOGRAPHIC REGION > POLAR&rft_subject=CONTINENT > ANTARCTICA > HOLME BAY&rft_subject=CONTINENT > ANTARCTICA > MAWSON COAST&rft.type=dataset&rft.language=English Access the data
Cite Saved to MyRDA Save to MyRDA

Licence & Rights:

Open Licence view details
CC-BY

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=Mawson_coastline_approach when using these data.

This metadata record is publicly available.

Access:

Other

Full description

This data set includes revisions of coastline data for the Holme Bay region and approaches to Mawson.
Revised data were generated by digitising coastline and associated features from newly available satellite imagery that was predominantly ice free. In ice-free imagery, island coastlines could be clearly delineated and it was also possible to see marine near-surface features in some areas e.g. submerged rock.

Digitising work in ArcGIS Pro included modifying or replacing coastal features to match the new ice-free imagery as well as expanding the dataset to include missing features e.g. smaller islands/rocks and near-surface features.

Some satellite images that did have sea ice were also used to confirm the presence of smaller features such as offshore/near-surface rocks, as disruptions in the sea ice surface caused by these features were clearly visible.

Satellite images used are noted in the 'SOURCE' field in the data set. The data is available as a polygon feature class in a GeoPackage.
Coordinate system used for this region was WGS1984 UTM Zone 41S.

Lineage

Progress Code: onGoing
Statement: The coastline was digitised at a resolution of 1:1000. GeoPackage (GPKG) is an open, non-proprietary, platform-independent and standards-based data format for geographic information systems built as a set of conventions over a SQLite database. Defined by the Open Geospatial Consortium (OGC).

Notes

Purpose
In order to support the production of an updated AUS600 Approaches to Mawson navigation chart, more comprehensive and better resolution data of the Holme Bay coastline in proximity to Mawson station was required. A number of issues were identified in the previous GIS coastline data. These issues arose primarily as a result of digitising from satellite imagery that had snow and/or ice present on landforms or as sea ice, which considerably altered the visibility of coastlines, offshore rock and near-surface marine features. Subsequently, the older GIS data does not closely match some exposed rock areas and smaller features that are clearly visible in the newer imagery. Accurate mapping of this coastline is important as this area serves as an approach path for resupply vessels to Mawson station and the use of other smaller transport and scientific vessels is frequent in the approach path and around surrounding islands. Revised data will improve the accuracy and comprehensiveness of the coastline data set for the Holme Bay region.

Data time period: 2002-12-31 to 2017-01-29

This dataset is part of a larger collection

Click to explore relationships graph
Help

Related People

63.10298,-67.3576 63.10298,-67.62133 62.66051,-67.62133 62.66051,-67.3576 63.10298,-67.3576

62.88174615,-67.4894668

text: westlimit=62.6605123; southlimit=-67.6213341; eastlimit=63.10298; northlimit=-67.3575995

Subjects
AMD | AMD/AU | CAMERAS | CEOS | CONTINENT > ANTARCTICA > HOLME BAY | CONTINENT > ANTARCTICA > MAWSON | CONTINENT > ANTARCTICA > MAWSON COAST | Computer > Computer | EARTH SCIENCE > OCEANS > COASTAL PROCESSES > SHORELINES > SHORELINE MAPPING | GEOGRAPHIC INFORMATION SYSTEM | GEOGRAPHIC REGION > POLAR | SATELLITE IMAGERY | SATELLITES > SATELLITES | imageryBaseMapsEarthCover |

User Contributed Tags    

Login to tag this record with meaningful keywords to make it easier to discover

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

url : https://data.aad.gov.au/eds/5934/download

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

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

Identifiers
  • global : Mawson_coastline_approach
ACN 633 798 857