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We're Sorry The contact form is currently unavailable. Please try again later. In response to these findings, the Government established the National Flood Risk Information Project NFRIP with the aim of improving the quality, availability and accessibility of flood information across Australia and, in doing so, raise community awareness of flood risks.
This four year project commenced on 1 July and delivered three products; the portal, Water Observations from Space and the Australian Rainfall and Runoff Guidelines. The portal is used by engineers, insurers and planners to find out what flood mapping information exists, and where, so they can better understand risks. Researchers and consultants can learn what work has already occurred in their area of interest and identify what data may be available for use in future studies.
Organisations can refine the scope of planned flood studies by understanding and applying lessons learnt from work undertaken in other regions. Others in the community can also use it to find out what flood information exists for the area that they live in. A flood study is the scientific investigation of flooding in a particular area, usually the catchment of a river system.
It may involve hydrologic and hydraulic investigations and a statistical analysis of the frequency with which floods have occurred. The purpose of a flood study is to predict the depth of water and the extent to which it will inundate the landscape in a modelled flood event. A flood map is the result of hydrologic and hydraulic analysis by scientific subject matter experts, that takes into account many factors when developing models for various scenarios. Such factors might include: terrain, water catchments, flood marks and information from historical floods.
A map can represent the extent of a flood, the probability of that event occurring and sometimes the depth of inundation in the modelled area. While some flood studies don't include separate mapping data, maps relevant to the specific study can be found in many of the attached flood study documents. The AFSD contains general information for available studies, including the study location, date, commissioning organisation and lead consultant, and metadata on flood studies and information on flood risk.
The metadata is created through a purpose-built data entry application, and adheres to the Flood Studies Data Model XML schema which can be used by data custodians to structure and share their flood information with the portal via webservices. Where available, these can be downloaded directly from the Details section in the Australian Flood Risk Information Portal once you have identified a study you are interested in.
If the study you're interested in has no downloads, you will need to contact the commissioning organisation identified in the study record to determine if a copy of the report is available.
Contact your local State Emergency Services if you require assistance in the event of a flood. The portal is maintained by Geoscience Australia. Unless otherwise noted, all information is available for re-use under Creative Commons 4. Users of the database should refer to each specific flood study report to determine any constraints in its usage.
Your feedback is input to the continued development of the database and the portal. Please share your feedback via the portal's feedback button. Some of the flood studies contained in the database may be incomplete or may have been superseded by new material. Issues with the accuracy of the study itself should be referred to the commissioning organisation, typically a local council or state government agency. However, where incorrect information is displayed in the portal about a flood study, please share your feedback via the portal's feedback button.
Registered data custodians can add flood studies and maps to the portal. Please notify Geoscience Australia via the portal's feedback button of any other published flood studies that aren't currently included in the database, but may be suitable for release through the portal.
Water Observations from Space WOfS is a web service displaying historical surface water observations derived from satellite imagery for all of Australia from to present day. WOfS aims is to allow better understanding of where water is usually present; where it is seldom observed; and where inundation of the surface has been occasionally observed by satellite. WOfS displays the detected surface water from the Australia-wide Landsat 5 and Landsat 7 satellite imagery archive.
The WOfS project began in and included staged releases of information and a trial product. The development of this product is now complete. Data will continue to be updated every three months.
WOfS uses the Datacube application at the National Computational Infrastructure for the storage , organisation and analysis of satellite data. Use the Water Observations from Space application to view surface water observed by the Landsat 5 and Landsat 7 satellites for all of Australia from to present.
Find out more about the WOfS product, how it was developed and its role in the broader flood mapping toolkit. For a detailed technical description of the product, see the Water Observations from Space Product Description. These rain events can produce up to millimetres of rain in 24 hours. Monsoonal activity Typically monsoonal activity in northern Australia occurs around the same time as tropical cyclone activity. The winds in northern Australia before the arrival of the monsoon typically swing in from the south east to the north east.
When the monsoon season starts the winds shift direction and come in from the north west and west. Torrential rain and gusty afternoon showers and thunderstorms are the order of the day during the monsoon season. Darwin, the capital city of the Northern Territory rarely misses out having a monsoon each year. As a result floods are common in this region. The monsoon over northern Queensland is generally weaker than that over the Northern Territory because Papua New Guinea blocks the arrival of the some of the incoming north westerly winds.
You can expect rainfall totals up to mm in 24 hours at least twice a year during the monsoon season in northern Australia. One of the worst inland floods in Australia occurred as a result of southward extension of the monsoon.
This occurred back in February-March Rainfall totals of between millimetres were recorded over the whole period. Although some locations received millimetres in 24 hours.
Considering that this region of Australia can receive more rain overnight than it normally gets in a year makes this rainfall event exceptional. The inland regions of Australia normally have an annual mean rainfall of less than millimetres. Mid-latitude low pressure systems As you can tell by the name, the low pressure systems occur in southern parts of Australia. They commonly occur in the winter months and can cause a great deal of flooding and damage to property.
Just before this small flood, the Avon river shown in the photo on the left was barely flowing. The main rain bearing weather systems that lead to flooding in southern Western Australia are the result of vigorous cold fronts that have embedded thunderstorms. In addition, the cold front may join with the north-west cloud band. These normally occur in the winter months. Severe floods in southern Western Australia do not occur very often but when they do, it normally causes extensive damage to towns in the area.
Most of the buildings in this region of Australia aren't designed to prevent flood damage unlike many houses in eastern north Queensland and the Northern Territory.
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