Coastal Design Sea Levels

Contains five Environment Agency Coastal Flood Boundaries: Extreme Sea Levels, Extreme Sea Levels Estuary, Gauge Data, Estuary Intervals and Surge Shapes. Full description has been given below for the Extreme Sea Levels layer and the Extreme Sea Levels Estuary layer. Links are provided to the remaining three layers. Extreme Sea levels: This metadata record is for AfA product AfA 010. Extreme Sea Level values is part of Coastal Design/Extreme Sea Levels,a GIS dataset and supporting information providing design / extreme sea level and typical surge information around the coastline of the UK, including England, Wales, Scotland, Northern Ireland, Isle of Man and Jersey. The information is relevant under present day (year 2018) conditions and does not account for future changes due to climate change, such as sea level rise. This is a specialist dataset which informs on work commenced around the coast ranging from coastal flood modelling, scheme design, strategic planning and flood risk assessments. Extreme Sea Level values describes the extreme sea levels for 16 different annual probabilities of exceedance. Confidence levels relating to the 5% and 95% lower and upper bounds of confidence are included. Mean High Water Spring (MHWS) and Highest Astronomical Tide (HAT) predicted tide levels are also included in the dataset for some sites but may not be used for navigational purposes. This 2018 update to the Coastal Design Sea Levels dataset was carried out in partnership for the UK Coastal Flood Forecasting partnership, which includes the Environment Agency (EA), Scottish Environment Protection Agency (SEPA), Natural Resources Wales (NRW) and the Department for Infrastructure Northern Ireland (DfINI). Extreme Sea Levels Estuary: This metadata record is for AfA product AfA 010. Extreme Sea Levels Estuary values is part of Coastal Design/Extreme Sea Levels,a GIS dataset and supporting information providing design / extreme sea level and typical surge information around the coastline of the UK, including England, Wales, Scotland, Northern Ireland, Isle of Man and Jersey. The information is relevant under present day (year 2018) conditions and does not account for future changes due to climate change, such as sea level rise. This is a specialist dataset which informs on work commenced around the coast ranging from coastal flood modelling, scheme design, strategic planning and flood risk assessments. Extreme Sea Level values describes the extreme sea levels for 16 different annual probabilities of exceedance. Confidence levels relating to the 5% and 95% lower and upper bounds of confidence are included. Mean High Water Spring (MHWS) and Highest Astronomical Tide (HAT) predicted tide levels are also included in the dataset for some sites but may not be used for navigational purposes. This dataset provides level this level information for sites in estuaries, tidal rivers and harbours. Levels for open coastal areas are provided separately in Extreme Sea Levels. This 2018 update to the Coastal Design Sea Levels dataset was carried out in partnership for the UK Coastal Flood Forecasting partnership, which includes the Environment Agency (EA), Scottish Environment Protection Agency (SEPA), Natural Resources Wales (NRW) and the Department for Infrastructure Northern Ireland (DfINI). Gauge Data: https://environment.data.gov.uk/arcgis/rest/services/EA/CoastalDesignSeaLevels/MapServer/2 Surge Shape data: https://environment.data.gov.uk/arcgis/rest/services/EA/CoastalDesignSeaLevels/MapServer/4 Estuary intervals: https://environment.data.gov.uk/arcgis/rest/services/EA/CoastalDesignSeaLevels/MapServer/3