Bathymetry of Approaches to Davis Station

Bathymetric Contours and height range polygons of approaches to Davis Station, derived from RAN Fair sheet, Aurora Australis and GEBCO soundings.

Simple

Identification info

Alternate title
Bathymetry of Approaches to Davis Station
Date (Publication)
1999-10-07
Edition
1

Originator

Harris, U.

Publisher

Australian Antarctic Data Centre

Principal investigator

HARRIS, URSULA
Australian Antarctic Division
203 Channel Highway
Kingston
Tasmania
7050
Australia

Collaborator

HARRIS, URSULA
Australian Antarctic Division
203 Channel Highway
Kingston
Tasmania
7050
Australia
Name
CAASM Metadata
Website
https://data.aad.gov.au/metadata/records/davisbathy_gis

Status
Completed

Custodian

AU/AADC > Australian Antarctic Data Centre, Australia - AADC, DATA OFFICER (DATA CENTER CONTACT)
Australian Antarctic Division
203 Channel Highway
Kingston
Tasmania
7050
Australia
Topic category
  • Elevation
  • Oceans

Extent

N
S
E
W


Extent

Description
Temporal Coverage

Temporal extent

TimePeriod
1989-02-06 1992-02-12
NASA/GCMD Earth Science Keywords
  • EARTH SCIENCE > OCEANS > BATHYMETRY/SEAFLOOR TOPOGRAPHY > SEAFLOOR TOPOGRAPHY
  • EARTH SCIENCE > OCEANS > BATHYMETRY/SEAFLOOR TOPOGRAPHY > WATER DEPTH
Keywords
  • BATHYMETRY
  • DAVIS
  • SOUNDINGS
NASA/GCMD Earth Science Keywords
  • AMD/AU
  • CEOS
  • AMD
NASA/GCMD Earth Science Keywords
  • CONTINENT > ANTARCTICA > Davis
  • GEOGRAPHIC REGION > POLAR

Resource constraints

Use limitation
This metadata record is publicly available.

Resource constraints

Access constraints
licence
Other constraints
Stored data format: Shapefile Available format type: Shapefile. Stored as geographicals with a projection file. Access constraint: Data are available on the web. Conditions apply.

Resource constraints

File type
Portable Network Graphic
Linkage
Creative Commons by Attribution logo

Title
Attribution 4.0 International (CC BY 4.0)
Website
https://creativecommons.org/licenses/by/4.0/legalcode

Legal code for Creative Commons by Attribution 4.0 International license

Use constraints
licence
Other constraints
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=davisbathy_gis when using these data.
Language
English
Character encoding
UTF8

Distribution Information

Distributor

Distributor

AU/AADC > Australian Antarctic Data Centre, Australia - AADC, DATA OFFICER (DATA CENTER CONTACT)
Australian Antarctic Division
203 Channel Highway
Kingston
Tasmania
7050
Australia
OnLine resource
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OnLine resource
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Citation reference for this metadata record and dataset

Resource lineage

Statement
All the soundings from three RAN fair Sheets were digitised as points using Microstation. The fair sheets used were Approaches to Davis - Sheets HI 171 V5/519-6877/9Scale 1:5 000 HI 120 V5/463-6877/1Scale 1:10 000 HI 120 SUP 1 V5/480-6877/7 Scale 1:10 000 Centre of gravity of the text was regarded as point position. The points from each sheet were assigned the relevant Data Quality Indicator and merged into a single dataset. The data were then converted to ArcInfo format and merged with GEBCO 97 data and Aurora Australis data supplied by the Australian Antarctic Data Centre. DQI Regions and contours were generated from the resulting merged data set. Contouring was performed using Intergraph's Siteworks. The contour interval was 5 metres in areas of scale 1:10 000, 2 metres in areas of 1:5000 scale and 50-200 metres in areas of much smaller scale (GEBCO and Aurora Australis). Resulting contour lines were converted to ArcInfo format and checked for overlapping lines. These were fixed where they occurred. The ends of the contours were closed using connectors and the resulting data set was built for polygons. The contour height values were transferred to the polygon tables. Depressions were determined by isolating closed polygons (without connectors); if these contained contours which went below the height range of the surrounding contours then they were tagged as depressions. Feature values for polygons were also determined from their surrounding lines. The final data set was subdivided into Data Quality Indicator (DQI) regions so that the polygons and arcs could be tagged with the correct DQI value. DQI regions were assigned using the bounds of the most accurate data set first and then working out to the least accurate data set.
Hierarchy level
Dataset
Maintenance and update frequency
As needed
Maintenance note
2015-08-11 - record updated by Dave Connell to correct download URL.

Metadata

Metadata identifier
string/davisbathy_gis

Language
English
Character encoding
UTF8

Author

HARRIS, URSULA
Australian Antarctic Division
203 Channel Highway
Kingston
Tasmania
7050
Australia

Sponsor

Australian Antarctic Division

Owner

AADC

Type of resource

Resource scope
Dataset

Alternative metadata reference

Title
gov.nasa.gsfc.gcmd
Citation identifier
6ddf52cc-439d-45d7-9679-cb4800760399

Alternative metadata reference

Title
gov.nasa.gsfc.gcmd
Date (Last Revision)
2015-11-29T19:41:26

Identifier

Description
metadata.extraction_date

Alternative metadata reference

Title
gov.nasa.gsfc.gcmd
Citation identifier
8.6

Metadata linkage
http://data.aad.gov.au/metadata/records/davisbathy_gis

Point of truth for the metadata record

Date info (Creation)
1999-10-07T00:00:00
Date info (Last Update)
2017-04-26

Metadata standard

Title
ISO 19115-3
Edition
2014
Other citation details
Version 1
Title
DIF to ISO 19115-1 Profile
 
 

Overviews

Spatial extent

N
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W


Keywords


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