Airborne Laser Fluorosenor (ALF) Data Hydrocarbon Migration and Seepage in the Timor Sea and Browse Basin. An Integrated SAR and geological Study GIS.

Note: This metadata describes the dataset in accordance with the ANZLIC (Australia New Zealand Land Information Council) Core Metadata Guidelines Version 2.

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Dataset citation

ANZLIC unique identifier: ANZCW0703003287

Title: Airborne Laser Fluorosenor (ALF) Data Hydrocarbon Migration and Seepage in the Timor Sea and Browse Basin. An Integrated SAR and geological Study GIS.

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Custodian

Custodian: Geoscience Australia

Jurisdiction: Australia

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Airborne Laser Fluorosensor or 'ALF' Data technology used in the present study comprises an aircraft-mounted laser, with an emitting wavelength of 266 nanno-metres, which is fired vertically at the sea surface. Any aromatic hydrocarbons present at the sea surface are excited by the laser and fluoresce; this fluorescence is then measured on-board the aircraft via a solid state diode array and presented as a digital spectral output. ALF is an extremely sensitive tool and detects the presence of thin (<1 micron) hydrocarbon films on the sea surface. Hydrocarbon anomalies detected by ALF are called 'fluors'.

The vector data comes from 2 sources: AGSO and BHP.

The AGSO data:

acp8flours.shp both point and line data.

acp16flours.shp both point and line data.

skuaflours.shp both point and line data.

haydenflours.shp both point and line data.

browseflours.shp both point and line data.

timor_survey.shp just line data

timor2_survey.shp just line data.

The BHP data (under the legacy_data directory in the CDROM):

1991_timor_sea

ANZLIC search words:

ENERGY Petroleum Exploration
GEOSCIENCES Geochemistry Monitoring
POLLUTION Water Monitoring

Spatial domain:

locality map

Geographic extent name: AUSTRALIA INCLUDING EXTERNAL TERRITORIES - AUSAAT - Australia - Australia

Geographic extent polygon: 121 -8.7, 127.5 -8.7, 127.5 -17, 121 -17, 121 -8.7,

Note: The format for each Geographic extent name is: Name - Identifier - Category - Jurisdiction (as appropriate) See GEN Register

Geographic bounding box:: North bounding latitude: -8.7 °; South bounding latitude: -17 °; East bounding longitude: 127.5 °; West bounding longitude: 121 °

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Data currency

Beginning date: 2000-07-01

Ending date: 2000-11-05

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Dataset status

Progress: Complete

Maintenance and update frequency: Not Known

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Access

Stored data format:: DIGITAL - shp ArcView shape file ArcView Geographic WGS84

Available format type:: DIGITAL - shp ArcView shape file ArcView Geographic WGS84

Access constraints:

Licence required.

Free Data Download

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Data quality

Lineage:

No lineage information available

Positional accuracy:

No analysis on the positional accuracy of any of the vector features has been undertaken, however due to the accuracy of the interpretation it can be considered that all vector features are within 50 metres of their true position.

Attribute accuracy:

No attrribute accuracy is documented.

Logical Consistency:

All vector data has been visually checked for extraneous points and value added data.

Line data has been checked for any errors.

Completeness:

All vector data and details are complete and verified.

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