Australian Coastal Geomorphology Depositional Environment - Geomorphology Reclassified 25K

Abstract This dataset is one of several datasets generated from a collaborative project between Geoscience Australia and the Department of Climate Change and Energy Efficiency (DCCEE) in a national programme of work that focused on an assessment of the vulnerability of Australia’s coastline to the impacts of sea level rise. These datasets map the coastal landform types of the Australian coastal zone according to a nationally consistent coastal geomorphology classification scheme developed at Geoscience Australia. These datasets were compiled from the available polygon geomorphology/geology digital maps and datasets from local, state and federal government agencies. These source datasets were then reclassified with the nationally consistent coastal geomorphology classification scheme to generate digital maps of geomorphology and landform types of the Australian coastal zone. Currency Date Modified: 08 December 2017 Modification Frequency: As needed Data Extent Coordinate Reference: WGS84 Spatial Extent North: -9° South: -44° East: 154° West: 112° Source information eCAT record: [https://pid.geoscience.gov.au/service/ga/103361] PDF and Document download: [https://pid.geoscience.gov.au/dataset/ga/74294] Geodatabase download: [https://pid.geoscience.gov.au/dataset/ga/71333] For further information about these datasets, please refer to the following two reports: Hazelwood, M., Nicholas, W. A. & Woolf, M., 2013. National Coastal Geomorphology Information Framework Implementation: Discovery and Distribution. Record 2013/35. Geoscience Australia: Canberra. [https://d28rz98at9flks.cloudfront.net/74294/Rec2013_035.pdf] Griffin, C., Skene, D., Hazelwood, M., Nicholas, W. and Xu. J. 2010. A Nationally Consistent Geomorphic Map and Classification of the Australian Coastal Zone. Professional Opinion 2010/06. [https://d28rz98at9flks.cloudfront.net/71333/71333.pdf] Lineage statement This layer is reclassified from the following datasets: Acid Sulphate Soils Risk Mapping (Department of Environment and Climate Change NSW), Quaternary Geology - Comprehensive Coastal Assessment Toolkit (DoP NSW), Land Resources of NT 1:25,000 (Natural Resources, Environment, The Arts and Sport NT), Foreshore, dune and shoreline stability classifications between Guilderton and Dongara (Department of Environment and Conservation (DEC) WA). The source data was captured at 1:250,000, 1:100,000 and 1:50,000 scale. In the geodatabase structure there was no attempt to create a single scale product by re-sampling or interpolating between scales. This was to ensure that users of the National Coastal Geomorphology data did not utilise data at inappropriate scales, while retaining the maximum amount of information where it existed. Data dictionary ──────────────────────┬──────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────── Attribute name │Description ──────────────────────┼──────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────── OBJECTID │Unique ID ──────────────────────┼──────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────── Unitno │Unique unit number identifier (equivalent of STRATNO). Primary key link to other related tables ──────────────────────┼──────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────── Project │Project name ──────────────────────┼──────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────── MapSymbol │A text identifier for the map unit (eg, CHer1) ──────────────────────┼──────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────── PlotSymbol │A field to allow a broader grouping of mapsymbol. ie, to plot data based on broader groupings. (eg, CH) ──────────────────────┼──────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────── Substrate │Substrate type (hard or soft) ──────────────────────┼──────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────── PrimaryEnvironment │Coastal depositional system which identifies the processes acting on a geomorphic feature ──────────────────────┼──────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────── PrimaryLandformType │Coastal geomorphic feature which identifies the environment (form) from which potential stability (i.e. to erosion, slumping) can be inferred ──────────────────────┼──────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────── PrimaryLandformSubtype│Geomorphic feature detail which adds further detail to the environment type, particularly with reference to dune stability ──────────────────────┼──────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────── Ecosystem │The type of floral/faunal habitat or vegetation ──────────────────────┼──────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────── Age │Named geological age of the regolith landform unit. (eg, Holocene, Pleistocene, Eocene, etc) ──────────────────────┼──────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────── LandformSummary │Free text description of the landform of the unit ──────────────────────┼──────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────── RegolithSummary │Free text description of the regolith materials of the unit ──────────────────────┼──────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────── EcosystemSummary │Free text description of the vegetation or habitat of the unit ──────────────────────┼──────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────── SoilSummary │Free text description of the soil character of the unit ──────────────────────┼──────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────── Relief │Free text description of relief character of the primary landform ──────────────────────┼──────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────── StructuralControl │Basement geological control of the primary landform, if any ──────────────────────┼──────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────── MinimumElevation │Minimum elevation expressed in metres above sea level. Negative numbers for below sea level ──────────────────────┼──────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────── MaximumElevation │Maximum elevation expressed in metres above sea level. Negative numbers for below sea level ──────────────────────┼──────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────── MinRegolithThickness │A general indication of the minimum thickness (in metres) of the regolith ──────────────────────┼──────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────── MaxRegolithThickness │A general indication of the maximum thickness (in metres) of the regolith ──────────────────────┼──────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────── SourceData │Description of the source of the data. eg, a field survey in 2007, a citation, another agency ──────────────────────┼──────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────── CaptureScale │The scale at which the data was captured or interpreted. This scale may or may not be different from the scale at which the data is intended to be used. ──────────────────────┼──────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────── CaptureDate │Date that the data was captured ──────────────────────┼──────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────── ModifiedDate │Date that the data was subsequently modified ──────────────────────┼──────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────── InterpMethod │Interpretation method, eg, field mapping, synthesis of published data, geophysics, etc. Can use "unknown" ──────────────────────┼──────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────── Confidence │Level of confidence in the attribute interpretation. eg, High, medium, low. Can use "unknown" ──────────────────────┼──────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────── LocationalQuality │A text description of the spatial accuracy of the linear feature. eg, accurate, approximate, etc. Can use "unknown" ──────────────────────┼──────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────── LocationalAccuracy │Estimated spatial accuracy of the linear feature, in metres ──────────────────────┼──────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────── ScaleFlag │The denominator of the scale at which the data is designed to be used. ──────────────────────┴──────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────── Contact Oceans, Reefs, Coasts and the Antarctic (ORCA), Geoscience Australia. [clientservices@ga.gov.au]