Detail Help

The Detail Tab shows detailed information for a single flood study. The system displays all metadata held for a particular study. If there is no data held for a particular content type, only the heading displays.

Click the Results tab to redisplay the results for the current search, or the Search tab to refine the search criteria or start a new search.

The following is a list of all content types, field labels and their meaning.

General Information

Label Meaning
AFSID The Australian Flood Studies Identifier (AFSID) for the Flood Study. The AFSID is a unique identifier assigned by Geoscience Australia to unambiguously identify a Flood Study entry. Typically a Flood Study and related Floodplain Management Study and Plan are assigned the same AFSID.
Catchment area(s)

The name of the Catchment that the study Centroid is in.

Use the ‘eye’ icon to show the region boundary on the map.

Use the ‘find’ icon to immediately run a new search for other studies in the region.

Centroid of flood study (lat, lon) Centroid (or geographical centre) for the study region represented as latitude and longitude. Values are held as decimal degrees against the Geographic Datum of Australia (GDA94) and displayed on the map as World Geodetic System (WGS84).
Comments Free text about the flood study.
Commissioning organisation The name of the original organisation that commissioned the study.
Date report completed Date the report was completed.
Lead consultant/Organisation The name of the lead consultant or organisation that conducted the study.
Local government area(s)

The name of the Local Government Area that the study centroid is in.

Use the ‘eye’ icon to show the region boundary on the map.

Use the ‘find’ icon to immediately run a new search for other studies in the region.

Rivers or creeks included in study Names of rivers or creeks included in the study. If more than one, values are delimited by semicolons ";".
State(s) The Australian States or Territories (excluding External Territories) that the study relates to. If more than one, values are delimited by semicolons ";".
Study contents Links to content on this page for information of each type. If the record has no information for a particular type, the title is displayed in grey with no link.
Study name The title of the flood study.
Towns included in study Names of towns included in the study. If more than one, values are delimited by semicolons ";".

Hydrological Estimates

Hydrological Estimates are the analysis of the rainfall and runoff process; including the evaluation of peak flows, flow volumes and the derivation of hydrographs for a range of floods.

Label Meaning
Comments Free text about the hydrological estimates.
Current data custodian The current custodian of the hydrological estimates data.
Design hydrographs available Flag to indicate whether the design hydrographs used for the modelled scenario are available.
Events modelled (nested element) Information about the events modelled during analysis. See below for details.
Hydrological estimates method used The method (methodology or approach or mathematical algorithm) used to develop the hydrological estimates.
Hydrological estimates software package The software package used to develop the models in the hydrological estimates.

Hydraulic Modelling

Hydraulic modelling includes the analysis of water flow in waterways; in particular, the evaluation of flow parameters such as water level, extent and velocity.

Label Meaning
Comments Free text about the hydraulic modelling.
Current data custodian The current custodian of the hydraulic modelling data.
Events modelled (nested element) Information about the events modelled during analysis. See below for details.
Hydraulic modelling method used The method (methodology or approach) used to develop the hydraulic model.
Hydraulic modelling software package The software package used to develop the models.
Input data format The format of the input data.

Damage Assessment

Damage assessment of the actual or estimated damages associated with historic or modelled events.

Label Meaning
Average annual damage Depending on its size (or severity), each flood will cause a different amount of flood damage to a flood prone area. AAD is the average damage per year that would occur in a nominated development situation from flooding over a very long period of time. If the damage associated with various annual events is plotted against their probability of occurrence, the AAD is equal to the area under the consequence-probability curve. AAD provides a basis for comparing the economic effectiveness of different management measures, (i.e. their ability to reduce the AAD). Recorded in Australian dollars.
Comments Free text about the damage assessment.
Dominant building material The broad classification of the dominant construction materials for buildings estimated as damaged in the modelled or actual event.
Dominant building type The broad classification of the dominant type of building inundated for the modelled event.
Events modelled (nested element) Information about the events modelled during analysis. See below for details.
Flood damage method The method (methodology or approach) used to develop the damage assessment.
Type of damage considered The type of damage considered in the assessment.

Inundation Mapping

Maps created to show extent or depth of flooding for specific modelled scenarios.

In future phases of the 'National Flood Risk Information Project', the database will be extended to include maps and underlying GIS data wherever possible.

Some maps may already be available under the 'Attachments' heading.

Label Meaning
Comments Free text comments to describe a map or its relationship to other artefacts, or highlight features, constraints or issues that should be noted by users.
Events modelled (nested element) Information about the events modelled during analysis. See below for details.
Main purposes The main purpose that the flood inundation map addresses.
Storage medium The medium that the map is stored in.

Hazard Mapping

Maps created using combinations of parameters such as water depth and velocity to show different hazard zones (for example low, medium and high hazard). 

Label Meaning
Comments Free text comments to describe a map or its relationship to other artefacts, or highlight features, constraints or issues that should be noted by users.
Events modelled (nested element) Information about the events modelled during analysis. See below for details.
Hazard guideline Standardised classifications which define what combinations of parameters (for example, water depth and velocity) describe different hazard zones (for example, low, medium and high hazard).
Storage medium The medium that the map is stored in.

Terrain Survey

Survey data that describes the bathymetry and topography of the study area.

Label Meaning
Comments Free text about the survey.
Data custodian Current custodians of the survey.
Data surveyor The organisation that performed the survey.
Date of survey Date that the survey was completed.
Datum The datum that the survey was based on. Datums are reference schemes under which levels are recorded. The most common is the Australian Height Datum (AHD). 0.0m AHD approximately corresponds to mean sea level.
Offset above AHD (m) The measurement of the datum relative to the Australian Height Datum (AHD), in metres. Populated when the datum is not AHD.
Offset below AHD (m) The measurement of the datum relative to the Australian Height Datum (AHD), in metres. Populated when the datum is not AHD.
Format of survey The format the survey data is available in.
Grid resolution (m) The grid resolution of the survey map, in metres.
Horizontal accuracy (m) The horizontal accuracy of survey measurements, in metres.
Storage medium of survey data The medium that the survey is stored in.
Terrain survey method The method (methodology or approach or mathematical algorithm) used to conduct the terrain survey.
Vertical accuracy (m) Vertical accuracy of the survey conducted, in metres.
Vertical contour interval (m) Vertical contour interval of the survey, in metres.

Floor Survey

Floor survey data of the lowest habitable floor height for buildings in the study region.

Label Meaning
Comments Free text about the survey.
Data custodian Current custodians of the survey.
Data surveyor The organisation that performed the survey.
Date of survey Date that the survey was completed.
Datum The datum that the survey was based on. Datums are reference schemes under which levels are recorded. The most common is the Australian Height Datum (AHD). 0.0m AHD approximately corresponds to mean sea level.
Offset above AHD (m) The measurement of the datum relative to the Australian Height Datum (AHD), in metres. Populated when the datum is not AHD.
Offset below AHD (m) The measurement of the datum relative to the Australian Height Datum (AHD), in metres. Populated when the datum is not AHD.
Floor survey method The method (methodology or approach or mathematical algorithm) used to conduct the floor survey.
Storage medium of survey data The medium that the survey is stored in.
Vertical accuracy (m) Vertical accuracy of the survey conducted, in metres.

Recommended Mitigation Strategies

Measures recommended in the flood study that modify the flood, property or the response to flooding.

Label Meaning
Was a mitigation strategy recommended by the flood study Boolean indicator as to whether the flood study recommended mitigation strategies.
Recommended strategy Measure recommended in the flood study that modify either the flood, the property or the response to flooding.

Post Flood Study Information

Analysis of activity undertaken in response to the flood study. This information is usually only available some time after a flood study has been completed.

Label Meaning
Adopted strategy Mitigation strategies actually adopted or implemented in response to the flood study.
Comments Free text entered by the user about the mitigations, their recommendation or adoption.
Date post study information added The date that 'Post Flood Study' information was entered.
Number of buildings built below largest flood inundation Number of buildings built within the modelled flood hazard area since the study.
Percentage increase in buildings below largest flood inundation The percentage increase in buildings that have been built since the study (of the total modelled) during the most severe event.
Studies done since implementation Boolean indicator as to whether any additional flood studies have been done following the implementation.
Year of implementation The year in which the strategy was implemented.

Attachments

Additional files that form all or part of the flood study.

Label Meaning
Download Download the attachment.
File description Short description of the file contents. Typically includes the title, version and date.
File name The name of the electronic file.
File size The size of the electronic file.

Related Studies

Flood Studies that analyse the same town, river, region or catchment.

Label Meaning
AFSID The Australian Flood Studies Identifier (AFSID) for the flood study. The AFSID is a unique identifier assigned by Geoscience Australia to unambiguously identify a flood study entry. Typically a flood study and related Floodplain Management Studies and Plans are assigned the same AFSID.
Comments Free text about the flood study.
Commissioning organisation The name of the original Organisation that commissioned the study.
Study name The title of the flood study.

Events Modelled for all Elements except Damage Assessment

Details of a modelled or historical event, especially:

  • the Average Recurrence Interval
  • the year (for historical events).
Label Meaning
AEP Annual Exceedance Probability (AEP). The likelihood of the occurrence of a flood of a given or larger size occurring in any one year, usually expressed as a percentage. For example, if a peak flood discharge of 500 m3/s has an AEP of 5%, it means that there is a 5% chance (that is one-in-20 chance) of a flow of 500 m3/s or larger occurring in any one year. The AEP is related to the "Average Recurrence Interval" (ARI): AEP = 100 / ARI.
ARI Average Recurrence Interval (ARI). A statistical estimate of the average period in years between the occurrence of a flood of a given size or larger than the selected event. For example, floods with a discharge as great as or greater than the 20 year ARI flood event will occur on average once every 20 years. ARI is another way of expressing the likelihood of occurrence of a flood event. The ARI is related to the "Annual Exceedance Probability" (AEP): ARI = 100 / AEP
ARI comments Free text about the Average Recurrence Interval (ARI).
Event year The year of the historical event, where applicable.
Scenario The scenario being modelled, including the Probable Maximum Precipitation or Flood, or another design event, or a historical event.

Events Modelled for Damage Assessment

Details of a modelled or historical event, especially:

  • the Average Recurrence Interval
  • the year (for historical events).
Label Meaning
AEP Annual Exceedance Probability (AEP). The likelihood of the occurrence of a flood of a given or larger size occurring in any one year, usually expressed as a percentage. For example, if a peak flood discharge of 500 m3/s has an AEP of 5%, it means that there is a 5% chance (that is one-in-20 chance) of a flow of 500 m3/s or larger occurring in any one year. The AEP is related to the "Average Recurrence Interval" (ARI).
ARI Average Recurrence Interval (ARI). A statistical estimate of the average period in years between the occurrence of a flood of a given size or larger than the selected event. For example, floods with a discharge as great as or greater than the 20 year ARI flood event will occur on average once every 20 years. ARI is another way of expressing the likelihood of occurrence of a flood event. The ARI is related to the "Annual Exceedance Probability" (AEP).
ARI comments Free text about the Average Recurrence Interval (ARI).
Estimated total cost of damages Estimate of the total cost of damages for the scenario modelled.
Event year The year of the historical event, where applicable.
Number of buildings with water on property The number of buildings that have water on the property for the scenario modelled.
Number of properties inundated above floor level The number of buildings with water over the floor for the scenario modelled.
Scenario The scenario being modelled, including the Probable Maximum Precipitation or Flood, or another design event, or a historical event.

Topic contact: hazards@ga.gov.au Last updated: November 13, 2012