Study Details

The Study Details panel within the Search application of the Australian Flood Risk Information Portal shows a summary of all the available metadata for a single flood study. The Study Details panel is displayed after selecting a study from the Advanced Results list or clicking "Show more information about the study" on the Basic Results page.

The Study Details panels categorises information across a number of themes.

General Information is available for all studies, this section provides basic information about each study such as; the state the study belong to, the date the report was completed; the commissioning organisation and/or lead consultant as well as details such as the towns or river courses included in the study.

The Study Contents field lists the potential content types for each study. The Study Contents section displays the following content types.

If there is no information held for a particular content type, only the headings will be displayed.
The events modelled for the various study content types are as follows;

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

The results information of a search are displayed in sections. These sections,field labels and their descriptions are below.

General Information

A flood study is a comprehensive technical investigation of flood behaviour. It defines the nature and extent of flood hazard across the floodplain by providing information on the extent, level and velocity of floodwaters, and on the distribution of flood flows. The flood study forms the basis for subsequent management studies and needs to address the above issues for a full range of flood events up to and including the Probable Maximum Flood (PMF).

See Data Entry Guidelines for more information on study requirements.

Label

Meaning

Abstract

A short description of the current purpose of the study regarding flood hazard, behaviour and flood flow.
An example statement: This resource describes flood hazard for the study area as at the time of publication. It is a comprehensive technical investigation of flood behaviour. It defines the nature of flood hazard across the floodplain by providing information on the extent, level and velocity of floodwaters, and on the distribution of flood flows. Please refer to the report for more information.

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. Currently a flood study and related floodplain management study and plan are assigned the same AFSID. In future it is expected that where a flood study, floodplain management study and plan are not produced at the same time each report will be assigned a separate AFSID.

Catchment area(s)

The name of the catchment the study centroid is located. The Bureau of Meteorology is responsible for this information layer. Please contact them for more information..
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 1994 (GDA94) and displayed on the map as World Geodetic System 1984 (WGS84).

Comments

Free text comments about the flood study.

Commissioning organisation

The name of the original organisation that commissioned the study.

Date report completed

Date the report was completed.

Geographic extent

Latitudes and longitudes that define the geographic bounding box (latitude north, longitude west, longitude east, latitude south).

Lead consultant/Organisation

The name of the lead consultant or organisation that conducted the study.

Lineage Statement

A description of the history, source, standard and format of the study provides context for persons reading, assessing or using the information in the flood study.
An example statement:  The flood study was developed according to standards, guidelines and accepted industry practices relevant to the study area at the time of publication. The report was completed to a standard and delivered in a format that was acceptable to the commissioning organisation at the time of publication. Please refer to the report for more information.

Local government area(s)

The name of the local government area (LGA) the study centroid is located 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.

Point of Contact

Provides an address and name of the organisation entering the flood study.
In addition provides an individual's name. Or the role name given by the organisation to the task of entering the flood study. Both an individual's name and role name are also acceptable.

River region

The name of the River Region(s) the study centroid is located. The Bureau of Meteorology is responsible for this information layer. Please contact them for more information. Hover the mouse over the name to highlight the boundary on the map.

State(s)

The Australian States or Territories the study relates to. Excludes external territories; Ashmore and Cartier Islands, Australian Antarctic Territory, Christmas Island, Cocos (Keeling) Islands, Coral Sea Islands, Heard Island, McDonald Islands and Norfolk Island.
If more than one, values are delimited by semicolons (;).

Study contents

The result of a flood study search contains various sections which are called study content types. They are; Hydrological Estimates, Hydraulic Modelling, Damage Assessment, Flood Inundation Mapping, Flood Hazard Mapping, Mitigation Recommendations, and Resources.
Each information type name is a link. If the flood study has information for a particular type, the link name is coloured. If there is no information, the link name is grey.

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 (;).

Watercourses included in study

Names of rivers or creeks included in the study. If more than one, values are delimited by semicolons (;).

Flood Inundation Mapping

Maps created to show extent or depth of flooding for specific modelled scenarios can be presented in different ways.
Maps can be found in flood study report documents, and some are available as GIS. All can be found in the Resources section.
See Data Entry Guidelines for more information.

Label

Meaning

Comments

Free text comments to describe additional information about the inundation map or its relationship to other artefacts. Highlight features, constraints or issues presented on the map that should be noted by users.

Events modelled

Information about the events modelled during the analysis. See below for details.

Main purposes

The main purpose that the flood inundation map addresses.

Other main purposes

Non-standard main purpose of inundation mapping.

Other storage medium

A name of a non-standard storage medium of the map.

Storage medium

The medium that the map is stored in.

Resources

Additional files that form all or part of the flood study.
See Data Entry Guidelines for more information.

Label

Meaning

Download

A hyperlink enabling download of the attachment.

Description

Short description of the file contents. Typically includes the title, version and date.

Resource (file name or URL/layer name)

The name of the electronic file or URL/layer name.

File size

The size of the electronic file in MB.

Hydrological Estimates

Hydrological estimates are the analysis of the rainfall and runoff process. This includes the evaluation of peak flows, flow volumes and the derivation of hydrographs for a range of floods.
See Data Entry Guidelines for more information.

Label

Meaning

Comments

Free text comments about the hydrological estimates.

Design hydrographs available

Flag to indicate whether the design hydrographs used for the modelled scenario are available.

Events modelled

Information about the events modelled during analysis. For example; ARI, AEP, Scenario, Event date, Comments. See Events Modelled - Hydrological Modelling, Hydraulic Modelling and Flood Hazard Mapping 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 in the hydrological estimates.

Hydraulic Modelling

Hydraulic modelling includes the analysis of water flow in waterways; particularly the evaluation of flow parameters such as water level, extent and velocity.
See Data Entry Guidelines for more information.

Label

Meaning

Comments

Free text comments about the hydraulic modelling.

Events modelled

Information about the events modelled during analysis. For example; ARI, AEP, Scenario, Event date, Comments. See Events Modelled - Hydrological Modelling, Hydraulic Modelling and Flood Hazard Mapping 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.

Damage Assessments

Assessment of the actual or estimated damages associated with historic or modelled flood events.
See Data Entry Guidelines for more information.

Label

Meaning

Average annual damage

Depending on the size (or severity), each flood will cause a different amount of damage to a flood prone area. Average annual damage (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 comments 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

Information about the events modelled during the 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.

Flood 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).
See Data Entry Guidelines for more information.

Label

Meaning

Comments

Free text comments to describe additional information about the hazard map or its relationship to other artefacts. Highlight features, constraints or issues that should be noted by users.

Events modelled (nested element)

Information about the events modelled during the 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).

Other hazard guideline

Provide a name of a non-standard hazard guideline.

Storage medium

The medium that the map is stored in.

Other storage medium

Provide a name of a non-standard storage medium of the map.

Terrain Surveys

Survey data of the study area such as; elevation data LIDAR (ALS), bathymetry and topography; field surveys; cross-sections and spot heights of the study area.
See Data Entry Guidelines for more information.

Label

Meaning

Comments

Free text comments about the terrain survey.

Data custodian

Current custodians of the terrain survey. Generally the commissioner of the survey (and generally is the commissioner of the study).

Data surveyor

The organisation that performed the terrain survey.

Date of survey

Date that the terrain survey was completed.

Datum

The datum that the survey was based. 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. If the survey is not in AHD, then the difference between the vertical datum and AHD should be provided by the Datum above or below in metres.

Datum above (m)

The measurement of the datum above the Australian Height Datum (AHD), in metres. Populated when the datum is not AHD.

Datum below (m)

The measurement of the datum below the Australian Height Datum (AHD), in metres. Populated when the datum is not AHD.

Survey products

The format the terrain survey data is available in. For example; cross-sections, Digital Elevation Model, Digital Terrain Model, Contours, Spot heights.
If other, provide a name for the format of the terrain survey data.

Grid resolution (m)

The grid resolution of the terrain survey map, in metres.

Horizontal accuracy of survey (m)

The horizontal accuracy of terrain survey measurements, in metres.

Storage medium of survey data

The medium that the survey is stored in.
If Other, provide a name of a non-standard storage medium that the terrain survey is stored in.

Survey methods

The method (methodology or approach or mathematical algorithm) used to conduct the terrain survey.
If other, provide a name of a non-standard terrain survey method used to conduct the terrain survey.

Vertical accuracy of survey (m)

Vertical accuracy of the terrain survey conducted, in metres.

Vertical contour interval (m)

Vertical contour interval of the terrain survey, in metres.

Floor Surveys

Floor survey data of the lowest habitable floor height for buildings in the study region.
See Data Entry Guidelines for more information.

Label

Meaning

Comments

Free text comments about the floor survey.

Data custodian

Current custodians of the floor survey.

Data surveyor

The organisation that performed the floor survey.

Date of survey

Date that the floor 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. If the survey is not in AHD, then the difference between the vertical datum and AHD should be provided by the Datum above or below in metres.

Datum above (m)

The measurement of the datum relative to the Australian Height Datum (AHD), in metres. Populated when the datum is not AHD.

Datum below (m)

The measurement of the datum relative to the Australian Height Datum (AHD), in metres. Populated when the datum is not AHD.

Survey methods

The method (methodology or approach or mathematical algorithm) used to conduct the floor survey.
If other, provide a name of a non-standard floor survey method used to conduct the floor survey.

Storage medium of survey data

The medium that the floor survey is stored in.

Vertical accuracy of survey (m)

Vertical accuracy of the floor survey conducted, in metres.

Horizontal accuracy of survey (m)

The horizontal accuracy of floor survey measurements, in metres.

Recommendations

Measures or strategies recommended in the flood study that either modify flood flow, modify the impact on property by flooding or modify the responses to flooding.
See Data Entry Guidelines for more information.

Label

Meaning

Recommended Mitigation Strategies (select all that apply)

Measure recommended in the flood study that modifies either the flood, the property or the response to flooding.
If Other, provide a recommendation or strategy name no in the list.

Related Studies

Flood Studies that analyse the same town, river, region or catchment, generally reported a couple to few years apart.
See Data Entry Guidelines for more 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 Studies and Plans are assigned the same AFSID.

Comments

Free text comments 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 - Hydrological Modelling, Hydraulic Modelling and Flood Hazard mapping

Details of a modelled or historical event, especially:

  • the Average Recurrence Interval or Annual Exceedance Probability
  • the event date (for historical events)
  • calibration and validation events

See Data Entry Guidelines for more information.

Label

Meaning

AEP

Annual Exceedance Probability (AEP) describes 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) as 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) as ARI = 100 / AEP

ARI comments

Free text comments about the Average Recurrence Interval (ARI).

Climate change

An indication that climate change has been considered for this modelled event.

Event date

The year of the historical event.

Scenario

The type of scenario being modelled, including the probable maximum precipitation or probable maximum flood, or a design event, or an historical event.

Used for calibration

The nominated event scenario was used in the calibration for the model. This event could be used for both or either calibration and validation

Used for validation

The nominated event scenario was used in the validation for the model. This event could be used for both or either calibration and validation

Events Modelled - Damage Assessment

Details of a modelled or historical event, especially:

  • the Average Recurrence Interval or Annual Exceedance Probability
  • the event date (for historical events)
  • highlighting the number of buildings and property affected by flood water
  • calibration and validation events

See Data Entry Guidelines for more information.

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) as 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) as ARI = 100 / AEP.

ARI comments

Free text comments about the Average Recurrence Interval (ARI).

Climate change

An indication that climate change has been considered for this modelled event.

Estimated total cost of damages

Estimate of the total cost, in Australian dollars, of damages for the scenario modelled. Damages are usually structural and noted as a direct cost.

Event date

The year of the historical event.

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 type of scenario being modelled, including the probable maximum precipitation or probable maximum flood, or a design event, or historical event.

Used for calibration

The nominated event scenario was used in the calibration for the model. This event could be used for both or either calibration and validation

Used for validation

The nominated event scenario was used in the validation for the model. This event could be used for both or either calibration and validation

Events Modelled - Flood inundation Mapping

Details of a modelled or historical event, especially:

  • the Average Recurrence Interval or Annual Exceedance Probability
  • the event date (for historical events)
  • the map showing the event modelled
  • calibration and validation events

See Data Entry Guidelines for more information.

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) as 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) as ARI = 100 / AEP

ARI comments

Free text comments about the Average Recurrence Interval (ARI).

Climate change

An indication that climate change has been considered for this modelled event.

Event date

The year of the historical event.

Primary map

Select a map from the map files loaded in the Resources section. To understand how to load a map read to the Data Entry Guidelines.

Scenario

The type of scenario being modelled, including the probable maximum precipitation or probable maximum flood, or a design event, or  historical event.

Used for calibration

The nominated event scenario was used in the calibration for the model. This event could be used for both or either calibration and validation

Used for validation

The nominated event scenario was used in the validation for the model. This event could be used for both or either calibration and validation

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