Australian Water Information Dictionary

Water data: Geofabric

AHGF

Australian Hydrological Geospatial Fabric (Geofabric)

Source: Geofabric Product Guide V2.0

Related: Geofabric

This definition applies to:

Glossary for Water data: Geofabric

ANU

Australian National University

Related: ANUDEM

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Glossary for Water data: Geofabric

ANUDEM

A computer program developed by the ANU for processing data into a digital elevation model.

Source: Geofabric Product Guide V2.0

Related: ANU

This definition applies to:

Glossary for Water data: Geofabric

ANUDEM Streams

Topologically connected flow direction streamlines developed by ANU using ANUDEM.

Source: Geofabric Product Guide V2.0

ANU
ANUDEM

This definition applies to:

Glossary for Water data: Geofabric

ANZLIC

Australia New Zealand Land Information Council

This definition applies to:

aquifer

A geological formation, group of formations or part of a formation; able to receive, store and transmit significant quantities of water.

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aquitard

A geological formation that may contain groundwater but is not capable of transmitting significant quantities of it under normal hydraulic gradients. May function as a confining bed.

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ArcGIS

A range of software programs developed by ESRI for spatial data analysis, processing and storage.

Related: Geographic Information System

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ArcHydro

A data model and tools published by ESRI for analysis of hydrological data.

This definition applies to:

Glossary for Water data: Geofabric

AusHydro

Flow directed and topological connected surface hydrology data derived from Geoscience Australia GEODATA series.

Source: Geofabric Product Guide V2.0

GA
GEODATA

This definition applies to:

Glossary for Water data: Geofabric

Australian Hydrological Geospatial Fabric

The Australian Hydrological Geospatial Fabric (Geofabric) is a specialised Geographic Information System (GIS). It identifies and registers the spatial relationships between important hydrological features such as watercourses, water bodies, canals, aquifers, monitoring points and catchments.

Source: Geofabric website

This definition applies to:

Australian Water Resources Council

Established in 1962, the Australian Water Resources Council (AWRC) was set up by the Commonwealth and Sate Governments as a non-statutory body. The council existed into the 1980s.

Source: National Library of Australia

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AWRC

Australian Water Resources Council

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AWRIS

Australian Water Resources Information System

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blue line

The typical depiction of a river or stream in a cartographic product.

This definition applies to:

Glossary for Water data: Geofabric

Bureau

Bureau of Meteorology

This definition applies to:

Glossary for Water data: Geofabric

conceptual model

A platform independent model for showing the entities and relationship between the features of interest generally described using UML.

Source: Geofabric Product Guide V2.0

Related: UML

This definition applies to:

Glossary for Water data: Geofabric

contracted catchment

A set of low level catchments derived from the nine second digital elevation model (DEM) with a contracted node at the outflow point.

Source: Geofabric Product Guide V2.0

This definition applies to:

Glossary for Water data: Geofabric

contracted node

An entity within the Geofabric that represents a logical feature in the landscape such as the confluence of two major rivers or a significant monitoring location. A contracted node has a unique and persistent identifier.

This definition applies to:

Glossary for Water data: Geofabric

Creative Commons

An international non-profit organisation that provides free licences and tools that copyright owners can use to allow others to share, reuse and remix their material, legally.

Source: Creative Commons Australia

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CSIRO

Commonwealth Scientific and Industrial Research Organisation

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D8-9S

GEODATA 9 Second Flow Direction Grid derived from DEM-9S.

A grid describing the principal directions of surface drainage across the whole of Australia.

Source: Geoscience Australia

This definition applies to:

Glossary for Water data: Geofabric

DEM

Digital Elevation Model

A digital elevation model of the earth's surface.

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DEM-9S

GEODATA 9 Second Digital Elevation Model.

A grid of ground level elevation points covering the whole of Australia with a grid spacing of 9 seconds in longitude and latitude (approximately 250 metres) in the GDA94 coordinate system.

Synonym: digital elevation model - 9 second

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Glossary for Water data: Geofabric

Digital Elevation Model

A digital elevation model of the earth's surface.

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DPS

Data Product Specification based on ISO 19139

Related: ISO

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Glossary for Water data: Geofabric

drainage division

Representation of the catchments of major surface water drainage systems, generally comprising a number of river basins. In Australia, 12 drainage divisions were first defined in the 1960s by the Australian Water Resources Council. Australian drainage division boundaries were revised by the Bureau in 2010 in line with the creation of the Australian Hydrological Geospatial Fabric (Geofabric) based on the 9 second Digital Elevation Model.

Related: Bureau

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ESRI

A software development company based in the United States that builds ArcGIS.

Related: ArcGIS

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ESRI File Geodatabase

A format for storing GIS data within the ArcGIS software.

Related: Geographic Information System

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foundation input data

Input data such as AusHydro, ANUDEM streams and the National Catchment Boundaries used to build the Geofabric.

Source: Geofabric Product Guide V2.0

This definition applies to:

Glossary for Water data: Geofabric

GA

Geoscience Australia

This definition applies to:

Glossary for Water data: Geofabric

GEODATA

A national set of topographic products developed by Geoscience Australia at various scales.

This definition applies to:

Glossary for Water data: Geofabric

Geofabric

The common abbreviation for the Australian Hydrological Geospatial Fabric.

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Geofabric Groundwater Cartography

A first pass national groundwater GIS dataset. Groundwater boundaries are derived from interim groundwater data.

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Glossary for Water data: Geofabric

Geofabric Hydrology Reporting Catchments

A contracted catchments hierarchy resulting from contracted nodes of important hydrological features. A simplified Node-Link network identifies contracted nodes in Geofabric Surface Network and the corresponding linkages between these nodes.

This definition applies to:

Glossary for Water data: Geofabric

Geofabric Hydrology Reporting Regions

A collection of GIS feature classes derived from aggregations of contracted catchments in the Geofabric Hydrology Reporting Catchments product. Data is aggregated to drainage divisions and river region reporting units.

This definition applies to:

Glossary for Water data: Geofabric

Geofabric Surface Cartography

A collection of GIS feature classes of surface water features of Australia (excluding external Territories). It is flow directed and provides input for the production of maps and visualisations that present the results of hydrological analyses.

Source: Geofabric Product Guide V2.0

This definition applies to:

Glossary for Water data: Geofabric

Geofabric Surface Catchments

A collection of GIS feature classes providing topographic based surface catchment boundaries, organised into a hierarchy using the Pfafstetter reference system. It has a hydrological relationship to surface water features and can be used for surface hydrological analysis.

Source: Geofabric Product Guide V2.0

This definition applies to:

Glossary for Water data: Geofabric

Geofabric Surface Network

A collection of GIS feature classes based upon the DEM derived ANUDEM Streams. It is a generalised representation of Geofabric Surface Cartography streams with the addition of full topological connection. It can be used for selecting hydrological observation points (if they exist) and for geoprocessing and hydrological modelling that involves streamflow tracing operations.

Source: Geofabric Product Guide V2.0

This definition applies to:

Glossary for Water data: Geofabric

Geofabric Version 1

The first major release of Geofabric data in 2010 derived from foundation input data at scale 1:250 000. Three products were included: Geofabric Surface Cartography, Geofabric Surface Catchments, Geofabric Surface Network.

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Glossary for Water data: Geofabric

Geofabric Version 2

The second major release of Geofabric data in 2011 derived from foundation input data at scale 1:250 000. Six products were included: Geofabric Surface Cartography, Geofabric Surface Catchments, Geofabric Surface Network, Geofabric Hydrology Reporting Catchments, Geofabric Hydrology Rerpoting Regions, Geofabric Groundwater Cartography.

This definition applies to:

Glossary for Water data: Geofabric

Geographic Information System

A system used for the design, capture, storage, management and analysis of geographic data. Often referred to as GIS.

Related: Geographic Information System

This definition applies to:

Geoscience Australia

Australia's national geoscience agency.

GA
GEODATA

This definition applies to:

Glossary for Water data: Geofabric

GIS

Geographic Information System

A system used for the design, capture, storage, management and analysis of geographic data. Often referred to as GIS.

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HYDRO1k

Developed at the United States Geological Survey (USGS), HYDRO1k is a geographic database providing comprehensive and consistent global coverage of topographically derived datasets.

Source: Geofabric Product Guide V2.0

This definition applies to:

Glossary for Water data: Geofabric

HydroID

An internal identifier assigned when using the ArcHydro tools to implement the ArcHydro data model.

This definition applies to:

Glossary for Water data: Geofabric

IAF

Interim Aquifer Framework

Source: Geofabric Product Guide V2.0

This definition applies to:

Glossary for Water data: Geofabric

IGWD

Interim Groundwater Data

Source: Geofabric Product Guide V2.0

This definition applies to:

Glossary for Water data: Geofabric

implementation model

A platform specific model that references the conceptual model. In the case of the Geofabric the implementation is in ArcGIS.

This definition applies to:

Glossary for Water data: Geofabric

interim aquifer framework

A two tiered system of geological units aggregated to aquifers (and sometimes aquitards) of similar hydrogeological characteristics. When available, it will be replaced by the National Groundwater Information System.

Source: Geofabric Product Guide V2.0

This definition applies to:

Glossary for Water data: Geofabric

interim groundwater data

Digital groundwater boundaries obtained from the best available digital groundwater data sourced from both Commonwealth and State and Territory jurisdictions as part of the IGWD project. When available, it will be replaced by the National Groundwater Information System.

Source: Geofabric Product Guide V2.0

This definition applies to:

Glossary for Water data: Geofabric

national catchment boundaries

Foundation input data derived from DEM-9S for Geofabric Surface Catchments, in which a catchment has been defined for every stream segment contained within the Geofabric Surface Network product. It also includes Levels 1 (drainage divisions) and 2 (aggregated river basin groups) and NCB Pfafstetter coding.

Source: Geofabric Product Guide V2.0

This definition applies to:

Glossary for Water data: Geofabric

NCB

National Catchment Boundaries

Source: Geofabric Product Guide V2.0

This definition applies to:

Glossary for Water data: Geofabric

NHDPlus

National Hydrography Dataset Plus. A geospatial hydrological system implemented in the United States.

This definition applies to:

Glossary for Water data: Geofabric

OzCoasts

Australian Online Coastal Information.

Source: Ozcoasts

Geofabric Product Guide V2.0

Related: Geoscience Australia

This definition applies to:

Glossary for Water data: Geofabric

Pfafstetter reference system

The Pfafstetter coding system developed by Otto Pfafstetter in 1989, is a methodology for assigning catchment identifers based on the topology of the land surface.

Source: K.L Verdin, J.P Verdin., 1999. A topological system for delineation and codification of the Earth’s river basins, Journal of Hydrology, Vol. 218 (1-2) and J. L. Stein, M. F. Hutchinson, J. A. Stein., 2014. A new stream and nested catchment framework for Australia, Hydrol. Earth Syst. Sci., 18

Related: Geofabric Surface Catchments

This definition applies to:

Glossary for Water data: Geofabric

raster data

Data organised as a regular grid or as pixels.

Source: Geofabric Product Guide V2.0

This definition applies to:

Glossary for Water data: Geofabric

river region

Produced as part of the Australian Hydrological Geospatial Fabric (Geofabric). These regions align with, and are nested within, the revised drainage divisions.

Source: Geofabric Product Guide V2.0

This definition applies to:

shapefile

A vector GIS format for storing geometric location and associated attribute information, that lacks the capacity to store toplogical information. It is developed and regulated by ESRI as a (mostly) open specification for data interoperability.

Source: ESRI

Related: Geographic Information System

This definition applies to: