Skip to content

Coastal Inundation Challenge

Assessing risk and resilience for coastal flooding

ADMIRALTY Marine Innovation Programme

The ADMIRALTY Marine Innovation Programme helps innovators and start-ups to develop new solutions that support safe, secure and thriving oceans.

For this challenge, we are looking for participants to show how marine geospatial data could be used to evaluate the impact of coastal inundation. This could range from assessing the risks to mitigating the effects of storm surges and flooding.   

Each participant will have access to world leading marine geospatial data, with the winner receiving a cash prize of SGD 10,000 and the opportunity to launch a product that could help to protect the livelihoods of millions of people around the world.

Why should I participate?

  • As a participant, you'll be given the opportunity to work closely with the UK Hydrographic Office (UKHO) to develop a solution that analyses the risk of coastal flooding for communities around the world

  • During the submission process, you will be given access to a world-leading marine geospatial data, as well as wide-ranging expertise from the UKHO to help you develop your prototype  

  • The winner will receive a cash prize of SGD10,000, including hands-on support and marine geospatial data from the UKHO to help you make your solution available to the people who need it most 

How do I enter?

You can register for the challenge by filling out a short application form, after which you will receive access to UKHO data sets and a series of product development workshops. You will then need to submit your solution by 9 April.

Enter the challenge >

Your challenge: How can marine geospatial data be used to assess risk and mitigate coastal inundation?

For many people around the world, coastal inundation poses a significant threat. Caused by storm and tidal surges, coastal inundation can completely submerge surrounding areas in sea water - causing substantial damage to infrastructure and harm to vulnerable communities. 

This is an existing problem for many low-lying coastal states and, with sea levels continuing to rise, many more are likely to be affected in the coming years. In fact, if left unresolved, it is estimated that coastal inundation will affect 0.2–4.6% of global population annually in 2100, with expected annual losses of 0.3–9.3% of global GDP.  To mitigate the risk of coastal inundation, governments and disaster relief agencies need access to data that can help identify areas risk and how other factors (such as weather conditions) could further intensify the effects.  

At the UKHO, we hold a wealth of marine geospatial data that can help develop a better understanding of the coastal environment, with data sets including bathymetry, seabed geology, tidal data, weather information, as well as other worldwide open source data for earthquakes, monsoons and mangroves.

Your challenge is to develop a prototype of GIS solutions that shows how these data sets can support the prediction of coastal inundation by helping disaster relief agencies and other stakeholders identify vulnerable areas and mitigate risks, while minimising impacts on the environment and communities.

Read our full Blue Economy report on Coastal Inundation >


 Entrants will get access to world-leading ADMIRALTY data, with winners receiving support from UKHO to develop their solution

What you'll receive

Selected participants will have access to world-leading geospatial and scientific data from the UKHO throughout the challenge. Teams will also get the chance to work with leading experts as they develop a prototype product.

Find out more about the data sets we'll provide >

The prize

The winner will receive an attractive package of prizes (which includes hands-on support from the UKHO's world-leading experts, marine geospatial data sets and  a cash prize of SGD10,000) to develop an alpha solution that could help protect the livelihoods of millions of people around the world.

Throughout the submission process, participants will receive support from UKHO staff and access to wide range of ADMIRALTY data when developing their own solutions. Below you will find more information on the resources available for this challenge.


We hold a wealth of marine geospatial data from the seabed, to the coast, offshore and beyond. The following data sets (covering Anguilla) can be accessed to help you develop your solution.

Wind speed and direction

Historical data from 1979 to the present day. 

(File name: ''. Described as metres per second.)


Historical data from 1979 to the present day.

(File name: ''. Described as kilograms per m2 per second.)

Ocean waves and swell

Historical data from 1979 to the present day.

(File name: ''. Described as metres.)

Bathymetry survey extents

​Polygons that show the extents of bathymetric surveys carried out (method of capture includes LIDAR) .

(To download the data, click within the polygon and a download link will appear along with other useful metadata.)

Satellite-derived coastline data set

The satellite-derived coastline data set has been created using a combination of free, open source satellite data and custom automated computer vision algorithms developed by the UKHO Data Science team. Includes the intertidal ranges.

​Depth contours

A line connecting points of equal water depth which is sometimes significantly displaced outside of soundings, symbols and other chart detail for clarity as well as generalisation. Depth contours, therefore, often represent an approximate location of the line of equal depth as related to the surveyed line delineated on the source. Also referred to as 'depth curve'. 

50m gridded bathymetry

​An interpolated .tif file displaying the depth data as a stylised raster. The result can be created from the .bag files in the 'bathymetry survey extents' layer.

Soundings data

A measured water depth or spot which has been reduced to a vertical datum (may be a drying height). 

Territorial sea area

​The territorial sea is a belt of water of a defined breadth but not exceeding 12 nautical miles measured seaward from the territorial sea baseline.

EEZ polygon

The Exclusive Economic Zone (EEZ) is an area, not exceeding 200 nautical miles from the baselines from which the breadth of the territorial sea is measured, subject to a specific legal regime established in the United Nations Convention on the Law of the Sea (UNCLOS) under which the coastal state has certain rights and jurisdiction.

​EEZ coastline

​A line representing the limits and boundaries of Anguilla's Exclusive Economic Zone (EEZ).

ENC coastline

​The coastline as defined by Electronic Navigational Charts (ENCs).

​Wrecks and obstructions

​Point features for the location of recorded wrecks and obstructions within Anguilla's Exclusive Economic Zone. 

​Obstructions point data

​Land area

​Polygons of the land areas belonging to Anguilla.

​Restrictive areas

​A specified area on land or water designated by an appropriate authority within which access or navigation is restricted in accordance with certain specified conditions.

​Seabed point features

​An area of the sea where the nature of bottom is homogenous. The nature of bottom includes the material of which it is composed and its physical characteristics. Also called 'character (or characteristics) of the bottom' or 'quality of the bottom'.

​Submarine cables

​An assembly of wires or fibres, or a wire rope or chain, which has been laid underwater or buried beneath the seabed.

​Cautionary areas

​Generally an area where the mariner has to be made aware of circumstances influencing the safety of navigation.

​Obstruction areas

​In marine navigation, anything that hinders or prevents movement; particularly anything that endangers or prevents passage of a vessel. The term is usually used to refer to an isolated danger to navigation.

​Anguilla Traffic Separation Scheme (TSS)

​A routeing measure aimed at the separation of opposing streams of traffic by appropriate means and by the establishment of traffic lanes.

AIS - not for download

​An automatic communication and identification system intended to improve the safety of navigation by assisting the efficient operation of Vessel Traffic Services (VTS), ship-to-ship and ship-to-shore operations, and ship reporting.

UKHO expertise

From hydrography and oceanography to software engineering and data science, our team of experts have wide-ranging knowledge and experience in developing solutions to help commercial and government partners make the best use of our oceans. During a series of workshops, participants will get to work alongside some of these teams and turn your initial ideas into innovative product propositions. 

You will be offered support in the following areas:

  • Market and user research - Our dedicated user research teams can help ensure your product meets user needs by helping to plan, manage and support all research. This could include conducting surveys, interviews, UX and user journey mapping, competitor analysis and persona creation.

  • Design - Based on your research results, we can support you in creating user-centred designs and propositions, including wireframes and prototypes. We use an iterative design and test approach to ensure all decisions are made with business and user needs at the forefront.

  • GIS development - With this user insight, our teams can offer extensive knowledge and expertise of geospatial data and tooling to help you create and develop a proof of concept. This proof of concept will not only prove the technical feasibility of your idea, but also minimise the risk in moving from an alpha product to market.

  • Delivery management - Finally, to deliver the activities required for an alpha release, we can provide further support from planning (to ensure desirability, feasibility and viability) through to managing change and engaging stakeholders.

Additional support

In this challenge, the UKHO has also worked with the Met Office, the national meteorological service for the UK. The Met Office is an expert in observing and monitoring past and current climatic conditions, and making advances in projecting future global and regional climate.

In this challenge, the Met Office contributes their expertise by advising participants on the science of meteorology and its impacts on coastal inundation. Participants who are interested to speak to the experts from Met Office can express their interest and book an appointment during this challenge. 

Find out more about key dates and how to apply >

A timeline of key dates for this challenge are outlined below, including the deadline to submit your initial proposal, through to the judges' evaluation and announcement of the winning solution.


Challenge opens

Participants can register by completing the application form below, after which they will receive access to UKHO data to help develop their solution, as well as a place on a workshop with UKHO experts (to be held between 16 March and 1 April).

Complete application form >


​Challenge submission 

Teams will need to submit their solution by this date.


Evaluation of solutions

A panel of UKHO experts will evaluate the solutions against the specified judging criteria.


Winner announcement

The successful team will be announced, after which the UKHO will provide support to take the winning solution to market.

​Registering for the challenge

To access data needed to develop your solution, you will need to complete a simple registration form.

Complete the registration form >

Your final submission

After registering, participants will have five weeks to work on their solutions and will need to submit a short presentation deck which outlines their proposed solution by 2 April. This should include (but is not limited to):

  • Details of the solution showing how UKHO data will be used

  • Details of the target market (incl. projected revenues)

  • Timeline showing phases of development and deployment

  • Commercialisation strategy

A panel of UKHO experts will evaluate the solutions against the specified judging criteria.

Contact >

​Judging criteria

The UKHO panel will select the best submission that can deliver modern technology to enable data analysis, design, forecasting and real-time monitoring to manage coastal inundation, tailored to the needs of local communities.

Participants will be required to submit their solutions and the winner will be announced based on the following criteria:

  • Which data sets will be used and how they will optimise the proposed idea

  • Number of potential clients that can use the solution and the revenue opportunity

  • Feasibility of the solution and ability to deliver (including team make up, skills and size)

  • Attractiveness of commercialisation plan (including speed to market)