Much of the settled Hawke’s Bay region is low lying and built on river flood plains. This brings the risk of flooding, which is our most common natural hazard - a severe storm or flood happens every 10 years on average. Major storms affect wide areas and can be accompanied by strong winds, heavy rain or snowfall, thunder, lightning, and rough seas. They can cause damage to property and infrastructure, affect crops and livestock, disrupt essential services and cause coastal inundation.Rivers normally flood every winter when a storm brings more rainwater than can soak into the soil. When floods threaten communities the flood become a hazard. In Hawke's Bay stop banks have been built alongside many of the rivers to hold in the extra flood water. However in a severe storm, rivers could breach stop banks and the flood waters may go through farms, homes, shops, schools and damage roads and other infrastructure.There have been significant flood protection systems completed on the Heretaunga Plains and the Ruataniwha Plains. Flood protection works in Hawke’s Bay are generally designed to contain a 1% annual exceedance probability (AEP) flood). These works have significantly reduced the effect of small to medium sized floods, but a large flood could overwhelm the works and have a devastating effect. Such a flood, which exceeds the design capacity of the flood protection system, is called a Super Design Flood. Flooding from localised downpours in urban areas can also overwhelm drainage systems, so events below the AEP can still be costly.With climate change, rainfall patterns in the Hawke’s Bay are expected to change over the next century; winters are predicted to become drier, but overall flood risk is expected to increase as single events may be more intense.

Waikato District Council - Proposed District Plan (Stage 2 Natural Hazards), Notified 27 July 2020. This layer is a spatial representation of an overlay in the Proposed District Plan and indicates where land use will be regulated by various associated rules. It will be used as a guide in the regulatory process of implementing the Proposed District Plan and managing land use, subdivision, the environment and economy. This dataset is subject to changes undertaken through the Resource Management act. Note individual Proposed Plan rules can have different statuses, some may have current legal effect and others will not until the Proposed Plan becomes operative. This data is provided for use in the District Plan only.

High Flood Risk Areas are identified as areas within the Flood Plain Management Area where the depth of flood water in a 1% Annual Exceedance Probability (AEP) flood event exceeds 1 metre and the speed of flood water exceeds 2 metres per second. This belongs to the series of data relating to Natural Hazards which includes the following groups - coastal erosion, coastal inundation, inland flooding, and land subsidence. This layer belongs to the inland flooding group. Use in conjunction with Flood Plain Management Area, Flood Ponding Area,and Defended Area.

Waikato District Council - Proposed District Plan (Stage 2 Natural Hazards), Notified 27 July 2020. This layer is a spatial representation of an overlay in the Proposed District Plan and indicates where land use will be regulated by various associated rules. It will be used as a guide in the regulatory process of implementing the Proposed District Plan and managing land use, subdivision, the environment and economy. This dataset is subject to changes undertaken through the Resource Management act.Note individual Proposed Plan rules can have different statuses, some may have current legal effect and others will not until the Proposed Plan becomes operative. This data is provided for use in the District Plan only.

Flood Ponding Areas are areas of land that experience floodwater ponding in a 1% Annual Exceedance Probability (AEP) rainfall event. Only two Flood Ponding Areas have been specifically identified on the planning maps. One of the areas is located in the southern part of Huntly adjacent to the eastern bank of the Waikato River and the other is in Huntly West adjacent to Lake Waahi and Lake Puketirini. This belongs to the series of data relating to Natural Hazards which includes the following groups - coastal erosion, coastal inundation, inland flooding, and land subsidence. This layer belongs to the inland flooding group. Use in conjunction with High Risk Flood Area, Flood Plain Management Area,and Defended Area.

River Flood Hazard Zones (100 year CC Extent): The area potentially susceptible to river flooding in a 1% AEP / 100Yr ARI + CC (climate change).River flood hazard zones were developed by 2 different external expert consultants between 2016 (Priority Rivers) and 2021 (Regionwide Models). The layers are derived by advanced models using empirical calculations.

Two different models were used to construct the river flood layers: TUFLOW (Water Technology, 2021), InfoWorks (URS, 2016). The reports detailing the methodologies, and risk assessment on the Priority Rivers, can be accessed from the NRC website.

Directive 2007/60/EG of the European Parliament and Council on the assessment and management of flood risks (FLD) passed on October 23, 2007 has been in force since November 26, 2007. The creation of the flood hazard maps and flood risk maps (HWGK and HWRK) represent the second implementation step of the Floods Directive and form the basis for the subsequent update of the flood risk management plan by the end of 2021. HWGK describe the spatial spread of the flooding and the water depth of a flood in various flood scenarios. The hazard maps show flooding that is caused by flooding of a body of water itself. Floods caused by excessive capacity of the sewage systems, groundwater coming to the surface, failure of water management dams or heavy rain are not shown in the HWGK. HWRK provide information about the possible flood-related adverse consequences of these flood events in relation to the protected goods specified in the European FD.

Decree-Law No 115/2010 of 22 October 2010 approves the framework for the assessment and management of flood risks, with the aim of reducing their harmful consequences, transposing into Portuguese law Directive No 2007/60/EC of the European Parliament and of the Council of 23 October 2007 and also meeting the concern relating to the mitigation of the effects of floods, laid down in Directive No 2000/60/EC of the European Parliament and of the Council of 23 October 2000. In this context, the flood risk was assessed by the Regional Directorate for Spatial Planning and Environment of the Autonomous Region of Madeira. For this purpose, flood hazard maps and flood risk maps were drawn up, indicating the potential harmful consequences associated with different flood scenarios, including the assessment of activities causing increased flood risks.

This layer contains the index tiles for LiDAR data for the Nelson - Tasman region, captured between 23 August 2022 and 6 September 2022.

• The DEM is available as layer Nelson and Tasman - Top of the South Flood LiDAR 1m DEM (2022).

• The DSM is available as layer Nelson and Tasman - Top of the South Flood LiDAR 1m DSM (2022.

• The LAS point cloud and vendor project reports are available from OpenTopography.

LiDAR was captured for Nelson City Council, Tasman District Council, Waka Kotahi NZ Transport Agency and the National Emergency Management Agency by Aerial Surveys Ltd between 23 August 2022 and 6 September 2022. These datasets were generated by Arial Surveys Ltd and their subcontractors. Data management and distribution is by Toitū Te Whenua Land Information New Zealand. Coverage includes Nelson to Brightwater, including the Waimea River, State Highway 6 from Hira to Rai Valley and Ōkiwi Bay access road, plus Abel Tasman Drive, Bird Hill and Takaka Hill in Golden Bay.

Data comprises:

• DEM: tif or asc tiles in NZTM2000 projection, tiled into a 1:1,000 tile layout

• DSM: tif or asc tiles in NZTM2000 projection, tiled into a 1:1,000 tile layout

• Point cloud: las tiles in NZTM2000 projection, tiled into a 1:1,000 tile layout

Pulse density specification is at a minimum of 2.8 pulses/square metre.

Vertical Accuracy Specification is +/- 0.2m (95%) Horizontal Accuracy Specification is +/- 1.0m (95%)

Vertical datum is NZVD2016.

This dataset is available on Brisbane City Council’s open data website – data.brisbane.qld.gov.au. The site provides additional features for viewing and interacting with the data and for downloading the data in various formats.

Brisbane City Council Sandy Creek Flood Study. This dataset contains reports, data and metadata used in the flood study for the existing and ultimate floodplain condition scenarios.

Council is committed to ensuring we have the latest flood modelling data to help manage flood risk in Brisbane. Flood studies provide Council with technical data to inform policy and for managing flooding within the Brisbane River and local creek catchments.

For specifics details on how the study was conducted or areas it covers, and before using the data please read the following flood study reports:

• Sandy Creek Flood Study 2023 - Volume 1 of 2
• Sandy Creek Flood Study 2023 - Volume 2 of 2

The data on the table tab is the metadata relating to the data used for flood modelling in the Brisbane City Council Sandy Creek flood study. The metadata covers all resources in this dataset as well as the flood study reports provided as links in the dataset description.

More information on Flood studies and how this information is used can be found on the Brisbane City Council Website.

Note: Brisbane City Council’s information products — Flood Awareness Maps (FAM), FloodWise Property Reports (FWPR) and City Plan Flood Overlay Code — may not have the latest report data incorporated.
The image below indicates the locality of the catchment area of the flood study and creek centreline of the model.

Collection of Flooding data for the Queenstown Lakes area, including rainfall, damburst, and return period of flood events.Contains data from the 2021 ORC Flooding Report, 2012 ORC aggregation of rainfall flooding data, and 2002 ORC damburst flooding data

42 maps + 1 overview

19 components + 1 overview

Map displaying the extents of flood studies, floodplain risk management studies/plans, and the years of their completion. Data and Resources Studies- Plans Map as @ 10-03-2022pdf (2.1 MB) Map of Lake Macquarie flood studies Explore More information Download

Map notes:North Esk & Tamar Flood Water Surface ProfilesFor use in Planning GeneralThese maps indicate North Esk derived flood levels from the Black Bridge to Corra Linn. The maximum flood levels below Hobblers Bridge and in the Tamar are determined by South Esk discharges into the Tamar which provide higher elevations than the North Esk discharges for the same Average Recurrence Interval (ARI).This map is primarily intended for use in planning to that end it includes:A 100 year ARI profile with current sea level conditionsA 100 year ARI profile with 800mm rise in sea levelA 200 year ARI profileDischargesHydro Consulting was commissioned to review the South Esk hydrology while the North Esk hydrology was derived by the University of New South Wales Water Research laboratory. The Table 1 indicates the results of latter study used in the construction of this map.Flood Return Period in Years ARINorth Esk Flood Discharges (UNSW WRL 2006)South Esk Discharges (Hydro Consulting 2008)1034514302041918105052623301006142910200710(Monte Carlo Range)1850 3430 39905008514630Table 1The adopted tail-water level used in the North Esk analysis for this map was 2.1 m AHD at the junction with the Tamar for all discharges. This represents the highest astronomical tide at Launceston with average atmospheric pressure and neutral wind conditions. The North Esk model was successfully calibrated to the flood which occurred on 30thAugust 2005 which peaked at 470 cumecs and the flood which occurred on 21stJune 2011 at 251 cumecs.

This dataset, created in June 2013, provides an indication of the likelihood of a flood occurring from one or more sources: creek, river, and storm tide inside the Brisbane City Council local government area. This layer contributes to the overall Flood Awareness Mapping for Brisbane City Council.Brisbane City Council has developed the Flood Awareness Maps and adopted the terms ‘high’, ‘medium’, ‘low’ and ‘very low’ likelihood areas to help residents and businesses better understand the likelihood of a flood affecting their property. The Flood Awareness Maps are an awareness tool and the maps do not provide information about the depth or speed of flood water. Information on potential flood levels for a property can be found in the FloodWise Property Report online.The Flood Awareness Maps are an awareness tool to provide an indication of the likelihood of a flood occurring from one or more sources: creek, river, overland flow and storm tide. The maps do not provide information about the depth or speed of flood water. Use the FloodWise Property Report for information about flood levels specific to your property.Many properties within the high and medium flood likelihood were affected by flooding in the 1974 and 2011 Brisbane River floods.Residents in the low and very low flood likelihood areas should still be aware of their risk of flooding and understand how they, as well as others in the area, may be affected.High likelihood areaFlooding is almost certain to occur in a high likelihood area. Residents and businesses are strongly advised to learn about the flood likelihood for their property so they can be prepared to help minimise the impact on their home, business and family.Medium likelihood areaFlooding is likely to occur in a medium likelihood area. Residents and businesses are advised to learn about the flood likelihood for their property so they can be prepared to help minimise the impact on their home, business and family.Low likelihood areaLow flood likelihood areas may experience flooding in a rare flood event. Residents and businesses should consider how flooding may affect their local area, suburb or community. Flooding is unlikely in a low flood likelihood area but it may still occur.Very low likelihood areaVery low likelihood areas are unlikely to flood except in a very rare or extreme flood event. Residents and businesses should consider how flooding may affect their local suburb, area or community. Flooding is very unlikely in a very low flood likelihood area, but may still occur.Brisbane City Council is working hard to reduce the impact of flooding but we all have a responsibility to understand our flood risk and be better prepared to minimise the impact of flooding on our homes, property and businesses. For further information please refer to Council's website.

The flood plains indicate the area of land inundated by runoff in a storm event that has a 1 percent or greater probability of occurring in any given year, assuming maximum probable development (MPD) and future climate change. The flood plains are mapped from hydraulic modelling results. Information specific to each flood plain is accessible using the Identify tool, including the flood report. This dataset is continually updated at catchment scale to reflect the best information available.This dataset is updated by the Heathy Waters team on a regular basis.Disclaimer: In using the Catchments and Hydrology data set, you acknowledge that you have read, understood and agreed to the disclaimers below.The flood plains and flood sensitive area data layers are generated from catchment level modelling based on the datasets, requirements and technology available at the time of model build. They are compiled regional layers with varied data uncertainty and currency, which may directly impact data accuracy for the area of interest. The information provided therefore does not preclude the need for appropriate site-specific assessment and cannot be construed as an endorsement or approval of any development by Auckland Council.The Catchments and Hydrology data set is updated regularly when new information becomes available. As such, downloading and copying activities may result in data invalidity.Whilst due care has been taken in producing the Catchments and Hydrology data sets, Auckland Council gives no warranty as to the accuracy and completeness of any information given and accepts no liability for any error, omission or use of the information.

This table includes the report metrics that are used by the Flood Awareness Map solution to generate a report for each parcel (property lot) and property holding in Brisbane City Council local government area. It was produced by running a series on intersections and rules on each property lot in the Brisbane City Council local government area with flood mapping layers and recording the derived metrics.Descriptions for each metric in this dataset and definitions, can be found in the Brisbane City Council dataset called Flood — Awareness — Property Parcel Metrics — reference.NOTE: This information is not intended for use for due diligence and/or conveyancing matters. To obtain planning information for due diligence and conveyancing matters, an application for a planning and development certificate should be lodged with Brisbane City Council. Please refer to the Brisbane City Council website.

This lot consists of georeferenced rectangular polygons corresponding to the contours of each of the published cuts and enabling the informative mapping of the flooding areas described below to be made known.

Objectives of CIZI:

This map, produced under the plan contract between the State and the Midi-Pyrénées Regional Council, aims to inform citizens and decision-makers about the risk of flooding.

It has no regulatory scope and cannot replace a planning document such as the Soil Occupancy Plan (POS) or the Risk Prevention Plan (RPP).

Nevertheless, it allows citizens and officials, elected or administrative, to better appreciate the extent of areas that pose a significant flood risk or promote water sprawl. It is a tool for information and decision-making.

All the maps are assembled, by river basin, in a cartographic atlas of all the flooding areas of the Midi-Pyrénées region, available from the State services or the Midi-Pyrénées Regional Council.

This card may be reproduced, except for commercial purposes. It traces the contours of the most frequently flooded areas as well as the boundary of the highest known waters.

The approach combines hydrology (knowledge of watercourses and flow dynamics) with river geomorphology (analysis of the forms of the bottom of the valley).

All available data have been taken into account and analysed: studies, archives, hydrological information...

Limitations of the study:

The scale adopted is 1/25 000. The accuracy is therefore in the order of 25 meters (1 mm. on the map). That is why it is illusory to search for specific information on a plot scale. Enlarged by photocopy, the card will not be more precise. Developed on a scale of 1/25 000, this map was reproduced at 1/30,000 for publishing purposes. A centimeter on the map therefore represents 300 meters in reality.

Another limitation of the study is the type of flood studied: the overflow of the watercourse. Floods have not been mapped by rising water or of the type of urban storm runoff. The presence of water in a bowl bottom, e.g. a doline, is another natural hydrological phenomenon and is therefore not

not on that map.

The mapping is very complete but is not exhaustive:

— very strong but very localised rains (thunderstorms) can cause locally powerful floods but which very quickly lose this power downstream of the basin. The phenomenon is so punctual in time and space

(it can happen everywhere) that it is not possible to map it.

— some streams or “rus”, usually the smallest, have not been studied.

Some definitions:

Flood channel: linear form inscribed in hollow in the floodplain. Flood channels are areas of flow velocity. Currents are likely to cause obstruction destruction, scouring or accumulation of gravel and sand banks.

Dike, lift: linear accumulation of earth usually from materials of

construction, in relief on the floodplain and to protect it or part of it from rising waters. The dikes and embankments thus reduce the width of the flooding floor, which affects the downstream floodplains. In addition, work done in the past to cross rivers, cross valleys, grow alluvial lands, or even install constructions, alter the dynamics of floods.

Height at scale: this icon indicates the highest height read at the station scale whose data has been systematically recorded. The station name is indicated in the cartridge attached to the card.

One-off flood information: the date of the known flood is in a black icon.

e = thickness of the water blade at that point,

Z = altitude NGF (General Level of France) reached by flood,

R = height of flood carried over to a marker (bridge battery, wall...).

The red icon is a special category of ad hoc information, PHEC or Higher Waters Known; this is the most important flood whose traces are preserved by flood markers, hydrological data

A ten-tile atlas map of Auburn City Council that displays the following legend items:

Data prepared for the implementation of the Directive 2007/60/EC of the European Parliament and of the Council of 23 October 2007 on the assessment and management of flood risks. Data has been updated and confirmed 2022-05-25.