Brief description
The AusSeabed Bathymetry Survey Acquisitions Coverage database contains polygon extents of bathymetry data acquisitions along with identifying attributes and contact details where the data is not held by Geoscience Australia. It is an important scientific resource that identifies data spanning coastal, continental shelf and deep sea locations.
This dataset is live and will continue to be augmented as coverage details are supplied from AusSeabed collaborators who wish to share their knowledge of data availability to the broader marine community. The database is updated regularly and is made available via the AusSeabed Marine Data Portal using OGC compliant web services. Surveys/Data Acquisitions have been conducted by a wide range of organisations and countries, both inside and outside Australia's marine jurisdiction, using multiple systems and for various applications. Data coverages are published where the polygon extents intersects with Australia's marine jurisdiction, including the Australian Antarctic Territory. Each polygon in the layer contains metadata describing survey details.
Note that polygons may not be representative of the true survey extent due to the data gridding process.
Please contact us at ausseabed@ga.gov.au if you wish to contribute coverage information to the database.
Lineage
Maintenance and Update Frequency: asNeeded
Statement:
Data is collated from AusSeabed Contributing Hubs, AusSeabed Data Providers, the Geoscience Australia processing and publicaiton pipeline and from collaborators who wish to increase the knowledge of marine data availability to the broader marine community.
Data is often received as Shapefiles or ESRI File Geodatabases or generated from a Raster to Vector transformation of bathymetry grids (geoTIFFs). These are compiled, cleaned, simplified and validated using ESRI and OGC geometry tools along with key identifiying metadata attributes. As a minimum the following attributes are collated.
Column Name Data Type
OGC_ID NUMBER
NAME VARCHAR2(254 CHAR)
GEOM SDO_GEOMETRY
GAID NUMBER
NEWGAID VARCHAR2(20 CHAR)
SURVEYID VARCHAR2(254 CHAR)
PUBLISHED_DATE DATE
PLATFORM_NAME VARCHAR2(254 CHAR)
BATHY_TYPE VARCHAR2(50 CHAR)
SENSOR VARCHAR2(254 CHAR)
COLLECTING_ORGANISATION VARCHAR2(254 CHAR)
PRINCIPAL_INVESTIGATOR VARCHAR2(254 CHAR)
OWNER_COUNTRY VARCHAR2(254 CHAR)
START_DATE DATE
END_DATE DATE
START_LOCATION VARCHAR2(254 CHAR)
END_LOCATION VARCHAR2(254 CHAR)
AREA_KM2 NUMBER(12,2)
DATA_URL VARCHAR2(254 CHAR)
BATHY_URL VARCHAR2(250 CHAR)
BKSCT_URL VARCHAR2(254 CHAR)
L0_RAW_ASB VARCHAR2(15 CHAR)
L0_RAW_OWNER VARCHAR2(15 CHAR)
L2_PROCESSED_ASB VARCHAR2(15 CHAR)
L2_PROCESSED_OWNER VARCHAR2(15 CHAR)
L3_GRIDDED_ASB VARCHAR2(15 CHAR)
L3_GRIDDED_OWNER VARCHAR2(15 CHAR)
EMBARGO VARCHAR2(254 CHAR)
SOURCE VARCHAR2(254 CHAR)
Notes
Purpose
To collate the knowledge of data acquired and available for Australia's marine jurisdiction