This water flow network dataset is a route feature class rather than a simple polyline. The geometry is generated by merging the river lines of individual geometric network datasets. This layer contains an integrated flow network that includes known flow connections through rivers, lakes and groundwater aquifers. In places where the network is depicted flowing through lakes or through underground channels, the flow channels are schematic only, and do not represent the precise location of these flow channels. The appropriate Geological Survey Ireland data sets should be consulted where underground flows or connections are known or suspected.This dataset is provided by the Environmental Protection Agency (EPA). For more information please see https://gis.epa.ie/geonetwork/srv/eng/catalog.search#/metadata/c4043e19-38ec-4120-a588-8cd01ac94a9c

Water Framework Directive (WFD) River Waterbodies (RWB) are the management and reporting units for the WFD. WFD RWB is a polyline shapefile dataset which is formed from a water flow routes dataset. Waterbodies are assigned types depending on their likely WFD status classification and physical and biological characteristics (typology). This is in line with European Commission CIS guidance on delineation of waterbodies. Since each RWB is attributed with a unique identifier (EU_CD), this dataset can be linked directly to other WFD data sources such as physical characteristics, risk, classification and other objectives.In some karst areas, this layer contains indicative underground flow connections between surface rivers. Such lines are indicative only and should not be taken to infer the presence of an underground river at a particular location. The appropriate Geological Survey Ireland data sets should be consulted where underground flows or connections are known or suspected.For more information on this dataset please go to https://gis.epa.ie/geonetwork/srv/eng/catalog.search#/metadata/855cda57-88ed-4e02-98a0-d85e57bbb8c0

This water flow network dataset is a route feature class rather than a simple polyline. The geometry is generated by merging the river lines of individual geometric network datasets. This layer contains an integrated flow network that includes known flow connections through rivers, lakes and groundwater aquifers. In places where the network is depicted flowing through lakes or through underground channels, the flow channels are schematic only, and do not represent the precise location of these flow channels. The appropriate Geological Survey Ireland data sets should be consulted where underground flows or connections are known or suspected.River Network RoutesMetadata:http://gis.epa.ie/geonetwork/srv/eng/catalog.search#/metadata/c4043e19-38ec-4120-a588-8cd01ac94a9cDownload Data: https://gis.epa.ie/GetData/DownloadWater / Water Framework Directive - General Information- Catchments Data Package - October 2021orWater / Water Framework Directive - RIVERS AND LAKES - OSI Rivers and Lakes - 06/02/2020Lake SegmentsMetadata:http://gis.epa.ie/geonetwork/srv/eng/catalog.search#/metadata/c4040e19-38ec-4120-a588-8cd01ac94a9cDownload Data: https://gis.epa.ie/GetData/DownloadWater / Water Framework Directive - RIVERS AND LAKES - OSI Rivers and Lakes - 06/02/2020

This dataset shows river streams in Ireland. This dataset contains just Order 0 and 1 rivers. Stream order is a measure of the relative size of streams. The smallest tributaries are referred to as first-order streams.

This record represents near real time River Ecology Monitoring Results. National surveys of Irish rivers have taken place on a continuous basis since 1971, when 2,900 km of river channel was surveyed. The National Rivers Monitoring Programme was replaced by the Water Framework Monitoring Programme from 22 December 2006. As part of the Water Framework Directive (WFD) Monitoring Programme approximately one third of our major rivers and their more important tributaries are surveyed and assessed each year by EPA ecologists. A complete survey cycle is completed every three years. The sites are scored on a five point system developed by the EPA called the Biological Q rating system.For more information on this dataset please go to https://gis.epa.ie/geonetwork/srv/eng/catalog.search#/metadata/a0179512-dca7-450d-8391-374c4bf00375

Karst is a type of landscape where the bedrock has dissolved and created features such as caves, enclosed depressions (sinkholes), disappearing streams, springs and turloughs (seasonal lakes). Limestone is the most common type of soluble rock. As rain falls it picks up carbon dioxide (CO2) in the air. When this rain reaches the ground and passes through the soil it picks up more CO2 and forms a weak acid solution. The acidified rain water trickles down through cracks and holes in the limestone and over time dissolves the rock. After traveling underground, sometimes for long distances, this water is then discharged at springs, many of which are cave entrances.There are many kinds of karst landforms, ranging in size from millimetres to kilometres. Dolines or sinkholes are small to medium sized enclosed depressions. Uvalas and poljes are large enclosed depressions. A swallow hole is the point where surface stream sinks underground. Turloughs are seasonal lakes. Springs occur where groundwater comes out at the surface, karst springs are usually much bigger than non-karst springs. Estevelles can act as springs or swallow holes. Dry valleys are similar to normal river valleys except they do not have a stream flowing at the bottom. A cave is a natural underground opening in rock large enough for a person to enter. Superficial Solution Features can be seen on rocks dissolved by rain and include pits, grooves, channels, clints (blocks) and grikes (joints). Please read the lineage for further details.This map shows the currently mapped karst landforms in Ireland.Geologists map and record information in the field. They also examine old maps and aerial photos.We collect new data to update our map and also use data made available from other sources such as academia and consultants. It is NOT a complete database and only shows areas that have been mapped by GSI, or submitted to the GSI. Many karst features are not included in this database. The user should not rely only on this database, and should undertake their own site study for karst features in the area of interest if needed.It is a vector dataset. Vector data portray the world using points, lines, and polygons (areas).The karst data is shown as points. Each point holds information on: Karst Feature Unique ID, Historic GSI Karst Feature ID, Karst Feature Type, Karst Feature Name, if it’s within another Karst Feature, Location Accuracy, Data Source, Comments, Details and County.Water tracing means ‘tagging’ water, usually by adding a colour or dye, to see where it goes. Dye is usually added to a sinking stream and all possible outlet points (such as springs and rivers) are tested for the dye.Water traces are recorded as a straight line between the location of tracer input (e.g. swallow hole) and detection (e.g. spring), but they don’t show the actual path water may take underground, which is likely to be much more winding.It is mainly used in karst areas to find out groundwater flow rates, the direction the water is travelling underground and to help define catchments (Zone of Contributions).The dataset should be used alongside the Karst Landforms 1:40,000 Ireland (ROI/NI) ITM.Geologists map and record information in the field. We collect new data to update our map and also use data made available from other sources such as Academia and Consultants. It is a vector dataset. Vector data portray the world using points, lines, and polygons (areas).The karst data is shown as lines. Each line holds information on: Tracer Line Unique ID, Input Site, Input Historic GSI Karst Feature ID, Output Site. Output Historic GSI Karst Feature ID, Tracer Test Date, Weather Conditions, Tracer Used, Quantity, Operator, Results, Minimum Groundwater Flow Rate, Hydraulic Gradient (slope of water table), Data Source, Catchment, Peak Concentration, Other Information, Flow Path, County, Length (m), Direction and Quality Checked.

Groundwater is the water that soaks into the ground from rain and can be stored beneath the ground. Groundwater floods occur when the water stored beneath the ground rises above the land surface. The Historic Groundwater Flood Map shows the observed peak flood extents caused by groundwater in Ireland. This map was made using satellite images (Copernicus Programme Sentinel-1), field data, aerial photos, as well as flood records from the past. Most of the data was collected during the flood events of winter 2015 / 2016, as in most areas this data showed the largest floods on record.This map is to the scale 1:20,000. This means it should be viewed at that scale. When printed at that scale 1cm on the map relates to a distance of 200m.The map is a vector dataset. Vector data portray the world using points, lines, and polygons (area). The floods are shown as polygons. Each polygon has info about the type of flood, the data source, and the area of the flood.The flood extents were calculated using data and techniques with various precision levels, and as such, it may not show the true historic peak flood extents.The Winter 2015/2016 Surface Water Flooding map shows fluvial (rivers) and pluvial (rain) floods, excluding urban areas, during the winter 2015/2016 flood event, and was developed as a by-product of the historic groundwater flood map.This map is to the scale 1:20,000. This means it should be viewed at that scale. When printed at that scale 1cm on the map relates to a distance of 200m.The map is a vector dataset. The floods are shown as polygons. Each polygon has info about the type of flood, the data source, and the area of the flood.The flood extents were made using remote sensing images (Copernicus Programme Sentinel-1), which covered any site in Ireland every 4-6 days. As such, it may not show the true peak flood extents.The Synthetic Aperture Radar (SAR) Seasonal Flood Maps shows observed peak flood extents which took place between Autumn 2015 and Summer 2021. The maps were made using Synthetic Aperture Radar (SAR) images from the Copernicus Programme Sentinel-1 satellites. SAR systems emit radar pulses and record the return signal at the satellite. Flat surfaces such as water return a low signal. Based on this low signal, SAR imagery can be classified into non-flooded and flooded (i.e. flat) pixels.Flood extents were created using Python 2.7 algorithms developed by Geological Survey Ireland. They were refined using a series of post processing filters. Please read the lineage for more information.The flood maps shows flood extents which have been observed to occur. A lack of flooding in any part of the map only implies that a flood was not observed. It does not imply that a flood cannot occur in that location at present or in the future.This flood extent are to the scale 1:20,000. This means they should be viewed at that scale. When printed at that scale 1cm on the maps relates to a distance of 200m.They are vector datasets. Vector data portray the world using points, lines, and polygons (areas). The flood extents are shown as polygons. Each polygon has information on the confidence of the flood extent (high, medium or low), a flood id and a unique id.The Groundwater Flooding High Probability map shows the expected flood extent of groundwater flooding in limestone regions for annual exceedance probabilities (AEP’s) of 10%, which correspond with a return period of every 10 years. The map was created using groundwater levels measured in the field, satellite images and hydrological models.This map is to the scale 1:20,000. This means it should be viewed at that scale. When printed at that scale 1cm on the map relates to a distance of 200m.The map is a vector dataset. The floods are shown as polygons. Each polygon has info on the data source, and the area of the flood.The flood extents were calculated using remote sensing data and hydrological modelling techniques with various precision levels. As such, it should be used with caution.The Groundwater Flooding Medium Probability map shows the expected flood extent of groundwater flooding in limestone regions for annual exceedance probabilities (AEP’s) of 1%, which correspond with a return period of every 100 years. The map was created using groundwater levels measured in the field, satellite images and hydrological models.This map is to the scale 1:20,000. This means it should be viewed at that scale. When printed at that scale 1cm on the map relates to a distance of 200m.The map is a vector dataset. The floods are shown as polygons. Each polygon has info on the data source, and the area of the flood.The flood extents were calculated using remote sensing data and hydrological modelling techniques with various precision levels. As such, it should be used with caution.The Groundwater Flooding Low Probability map shows the expected flood extent of groundwater flooding in limestone regions for annual exceedance probabilities (AEP’s) of 0.1%, which correspond with a return period of every 1000 years.The map was created using groundwater levels measured in the field, satellite images and hydrological models.This map is to the scale 1:20,000. This means it should be viewed at that scale. When printed at that scale 1cm on the map relates to a distance of 200m.The map is a vector dataset. Vector data portray the world using points, lines, and polygons (area). The floods are shown as polygons. Each polygon has info on the data source, and the area of the flood.The flood extents were calculated using remote sensing data and hydrological modelling techniques with various precision levels. As such, it should be used with caution.

Introduction

The Strategic Flood Map (Rivers) map service is a multi layered predictive flood mapping product providing a strategic overview of areas across Northern Ireland that could be affected by river flooding. The Strategic Flood Map (Rivers) includes the following layers of information for both present day and climate change epochs: • Floods with a medium probability

Purpose of the data

The dataset has been designed to raise awareness among the public, Government Departments, local authorities and other organisations of the likelihood of river flooding, thus supporting a more proactive and co-operative approach to flood risk management. By being aware of the land estimated to be at risk of flooding, authorities can develop strategies to better manage flood risk through their planning, flood prevention, and emergency planning functions.

Data Coverage

All of Northern Ireland, with some limited coverage in Republic of Ireland in border areas.

Data Format

OGC (Open Geospatial Consortium) compliant Web Mapping Service in WGS 1984 projection, accessible via secure website (requires authentication by user specific username and password).

Data content

Strategic River Floodplain o Rivers (Modelled/Unmodelled) Strategic River Floodplain (Present Day) o Medium Probability Floods (1% AEP) Strategic River Floodplain (Climate Change 2030) o Medium Probability Floods (1% AEP)

AEP is Annual Exceedance Probability e.g. the 1% AEP flood extent shows areas of land with an annual probability of flooding of 1% (or 1 in 100 chance) in any year.

Companion Mapping Services

• Strategic Flood Map (Coastal) • Strategic Flood Map (Surface Water) • Historical Flood Map

Karst is a type of landscape where the bedrock has dissolved and created features such as caves, enclosed depressions (sinkholes), disappearing streams, springs and turloughs (seasonal lakes). Limestone is the most common type of soluble rock. As rain falls it picks up carbon dioxide (CO2) in the air. When this rain reaches the ground and passes through the soil it picks up more CO2 and forms a weak acid solution. The acidified rain water trickles down through cracks and holes in the limestone and over time dissolves the rock. After traveling underground, sometimes for long distances, this water is then discharged at springs, many of which are cave entrances. There are many kinds of karst landforms, ranging in size from millimetres to kilometres. Dolines or sinkholes are small to medium sized enclosed depressions. Uvalas and poljes are large enclosed depressions. A swallow hole is the point where surface stream sinks underground. Turloughs are seasonal lakes. Springs occur where groundwater comes out at the surface, karst springs are usually much bigger than non-karst springs. Estevelles can act as springs or swallow holes. Dry valleys are similar to normal river valleys except they do not have a stream flowing at the bottom. A cave is a natural underground opening in rock large enough for a person to enter. Superficial Solution Features can be seen on rocks dissolved by rain and include pits, grooves, channels, clints (blocks) and grikes (joints). Please read the lineage for further details. This map shows the currently mapped karst landforms in Ireland. Geologists map and record information in the field. They also examine old maps and aerial photos. We collect new data to update our map and also use data made available from other sources such as academia and consultants. It is NOT a complete database and only shows areas that have been mapped by GSI, or submitted to the GSI. Many karst features are not included in this database. The user should not rely only on this database, and should undertake their own site study for karst features in the area of interest if needed. It is a vector dataset. Vector data portray the world using points, lines, and polygons (areas). The karst data is shown as points. Each point holds information on: Karst Feature Unique ID, Historic GSI Karst Feature ID, Karst Feature Type, Karst Feature Name, if it’s within another Karst Feature, Location Accuracy, Data Source, Comments, Details and County. Water tracing means ‘tagging’ water, usually by adding a colour or dye, to see where it goes. Dye is usually added to a sinking stream and all possible outlet points (such as springs and rivers) are tested for the dye. Water traces are recorded as a straight line between the location of tracer input (e.g. swallow hole) and detection (e.g. spring), but they don’t show the actual path water may take underground, which is likely to be much more winding. It is mainly used in karst areas to find out groundwater flow rates, the direction the water is travelling underground and to help define catchments (Zone of Contributions). The dataset should be used alongside the Karst Landforms 1:40,000 Ireland (ROI/NI) ITM. Geologists map and record information in the field. We collect new data to update our map and also use data made available from other sources such as Academia and Consultants. It is a vector dataset. Vector data portray the world using points, lines, and polygons (areas). The karst data is shown as lines. Each line holds information on: Tracer Line Unique ID, Input Site, Input Historic GSI Karst Feature ID, Output Site. Output Historic GSI Karst Feature ID, Tracer Test Date, Weather Conditions, Tracer Used, Quantity, Operator, Results, Minimum Groundwater Flow Rate, Hydraulic Gradient (slope of water table), Data Source, Catchment, Peak Concentration, Other Information, Flow Path, County, Length (m), Direction and Quality Checked. .hidden { display: none }

This September, we all came together for rivers to take part in our first Big River Watch Weekend, launched to help build a picture of river health across the country. It's good for you, and good for our rivers. This mapping layer allows you to view the results submitted by our citizen science volunteers. Whether you’re a swimmer or a paddler, an angler or a rambler, a wildlife spotter or a sit-and-watch-er, Big River Watch is a chance to be part of the movement improving our freshwater spaces. In just three easy steps, you can contribute to a national data set that will help us build a picture of river health across the UK and Ireland. Since September 2023 Big River Watch has been held twice a year, in the spring and autumn. With your help, we are building a picture of rivers in the UK and Ireland over time from the perspective of citizen scientists.How can you contribute?Step 1: Sign upSign up and download the survey app to your phone before visiting your chosen river.Step 2: Take partPick a riverside location and spend just 15 minutes observing and answering the questions on the survey. You can complete the survey at your favourite local spot, or choose to get to know somewhere new.Step 3: UploadUpload your survey. It's that simple to get involved!Find out more Visit theriverstrust.org/take-action/the-big-river-watch

Data was downloaded from EPA website on the 08/2/2024 and projected to ITM.Download Data: https://gis.epa.ie/GetData/DownloadWater / Water Framework Directive - General Information- Catchments Data Package - June 2022WFD Groundwater WaterbodiesThe EU Water Framework Directive (2000/60/EC) (WFD) establishes a framework for the protection, improvement and management of surface water and groundwater.All Groundwater Waterbodies (GWB) are represented as polygons. They are validated by scientists in the Geological Survey Ireland and the EPA Scientists as meeting the criteria for a WFD GWB.https://gis.epa.ie/geonetwork/srv/eng/catalog.search#/metadata/668c7c99-364f-4e18-8b19-0247480c947dWater_HydrometricAreasIreland’s hydrometric areas, used as management units for hydrological areas (EPA, OPW, ESBI, Local Authorities etc). They are made up of amalgamations of large river basins.https://gis.epa.ie/geonetwork/srv/eng/catalog.search?node=srv#/metadata/e186c6fa-0bc1-461e-84da-1e8b23ef1649Water_SubCatchmentsSubdivisions of the River basin (1958 catchments)http://gis.epa.ie/geonetwork/srv/eng/catalog.search?node=srv#/metadata/4a0e2ba5-8b86-4400-be79-81389b7600e4WFD_CatchmentsCatchments for use in River Basin Management planning, 2015 – 2021http://gis.epa.ie/geonetwork/srv/eng/catalog.search?node=srv#/metadata/78b8def6-16fd-4934-bc2a-1d52380a2b34

The data consist of daily maps of volumetric soil moisture predicted by a model based on a network of cosmic-ray neutron sensors (COSMOS-UK), the National River Flow Archive (NRFA) and remotely-sensed data. Maps cover the UK and Ireland at 2 km resolution in the Ordnance Survey National Grid (OSGB) projection. Maps are produced in near-real time, lagging by about one week. Data are available from early 2016 to 2023, on a daily basis. The model was calibrated on a network of cosmic-ray neutron sensors (COSMOS-UK) and remotely-sensed soil moisture data. A key parameter was estimated from the national-scale spatial pattern in the catchment response to rainfall seen in the National River Flow Archive (NRFA) data. Precipitation and humidity data to drive the model came from the Met Office High Resolution Numerical Weather Prediction model (NWP-UKV) which incorporates the C-band rainfall radar network. The maps have a variety of uses in hydrology and elsewhere, for example as inputs to ecosystem models of greenhouse gas exchange, where soil moisture affects numerous processes. The modelling was carried out as part of UK-SCAPE Virtual Survey Lab, and the NERC project 'Detection and Attribution of Regional Emissions (DARE-UK)'. There are some gaps in the time series of meteorological and remote sensing inputs, and data are unavailable for these days. The NRFA data are only available for Great Britain, so estimates in Ireland and continental Europe will be less accurate.

Groundwater is the water that soaks into the ground from rain and can be stored beneath the ground. An aquifer is a body of rock and/or sediment that holds groundwater. There are two main types of aquifer in Ireland – bedrock aquifers, and sand and gravel aquifers. Bedrock is the solid rock at or below the land surface. Over much of Ireland, the bedrock is covered by materials such as sands and gravel. The sands and gravels occur naturally on top of the bedrock. They were laid down by meltwater from melting ice sheets, by rivers, or by wind. There are two main types of bedrock aquifer. In most of them, groundwater flows through fractures and fissures. In about half of the limestone rocks, groundwater flows through cavities and caves. This type of limestone is called karst. Not all sand and gravel layers are aquifers. This is because some of them are very thin or are dry. If the sands and gravels are saturated with water, they have the potential to supply large volumes of water through wells or springs. The aquifer maps show the potential of areas in Ireland to provide water supplies. There are three main groups based on their resource potential:Regionally important – the aquifers are capable of supporting large public water supplies sufficient to support a large town; Locally important – the aquifers are capable of supporting smaller public water supplies or group schemes; Poor – the aquifers are only capable of supporting small supplies, such as houses or farms, or small group schemes.The three main groups are broken down into nine aquifer categories in total. Please read the lineage for further details.Information used to assign bedrock aquifer categories include: rock type (Hydrostratigraphic Rock Unit Groups - simplified bedrock geology with similar hydrogeological properties), yield (existing wells and springs), permeability and structural characteristics. All of the information is interpreted by a hydrogeologist and areas are drawn on a map to show the aquifers.This Bedrock Aquifer map is to the scale 1:100,000 (1 cm on the map relates to a distance of 1km).It is a vector dataset. Vector data portray the world using points, lines, and polygons (areas).The bedrock aquifer data is shown as polygons. Each polygon holds information on the aquifer code, description, rock unit name, rock unit description, Hydrostratigraphic Rock Unit Group Name, Hydrostratigraphic Rock Unit Group Changes, Bedrock Geology 100k newcode, stratigraphy code (rock layers with age profile), lithology code (rock type), Aquifer Category Original and Comments.Geologists record information about how thick the sand and gravel layers on top of the bedrock are. They also note down how big the different grains of sand and gravel are. Information from quarries and deep pits is used. Information from boreholes (a deep narrow round hole drilled in the ground) is also used. All of the information is interpreted by a hydrogeologist and areas are drawn on a map to show the aquifersThe Sand and Gravel Aquifer map is to the scale 1:40,000 (1 cm on the map relates to a distance of 400 m).It is a vector dataset. The sand and gravel aquifer data is shown as polygons. Each polygon holds information on the aquifer code, description, name, comments and confidence level associated with the delineation of the area as an aquifer.The Aquifer Geological Lines shows the details of the structural geology; faults and thrusts. Faults are the result of great pressure being applied to rock across a whole continent or more. These rocks break under the pressure, forming faults. Faults are recorded as lines where the break in the rock meets the surface. A thrust fault is a break in the Earth's crust, across which older rocks are pushed above younger rocks.Geologists map and record information on the composition and structure of rock outcrops (rock which can be seen on the land surface) and boreholes (a deep narrow round hole drilled in the ground). Lines are drawn on a map to show the structure. To produce this dataset, the twenty one 1:100,000 paper maps covering Ireland were digitised and any inconsistencies between map sheets were fixed. We collect new data to update our map and also use data made available from other sources. This map is to the scale 1:100,000 (1cm on the map relates to a distance of 1km).It is a vector dataset. The Geological Lines data is shown as lines. Each line holds information on: description of the line, bedrock 100k map sheet number, line code and name (if it has one).

Soil Water Assessment Tool (SWAT) are being extensively used by hydrologists and environmentalists to simulate river discharge and water quality at watershed/basin scale across the world. This database contains generates soil and landcover database that can be used for the SWAT modelling for river basins located in Ireland. The soil database has been created based on soil testing experiments conducted during the STRIVE programme by Teagasc and Environmental Protection Agency Ireland. The landcover database has been created by relating the landcover data obtained from the CORINE database with the default SWAT landcover database. A newly created SWAT geodatabase has been generated that can be used as a replacement from the default SWAT database for simulating runoff and water quality at river basins in Ireland. In the data folder, the following data and databases are available: i) SWAT2012.mdb, ii) DEM_IRL_ITM.tif, iii) LULC2018_IRL_ITM.tif, iv) lulc_classes.txt, v) SOIL_IRL_ITM.tif, vi) soillookup.txt, and vii) WFD_Rivers_ITM.shp and WFD_SubBasins_ITM.shp inside WFD_River_Subbasin.rar. The newly developed soil database is integrated into SWAT geodatabase SWAT2012.mdb. Once the SWAT model is set up, the default SWAT2012.mdb needs to be replaced by the newly created SWAT2012.mdb before processing the model development. The filled DEM for Ireland (DEM_IRL_ITM.tif) can be used to generate the stream network, delineate watershed boundary and create the basin slope. The river network and the sub-watersheds/subbasins for Ireland were developed by the Environmental Protection Agency Ireland under Water Framework Directive (WFD) as open data. The river and subbasin network were provided as shapefile (WFD_Rivers_ITM.shp and WFD_SubBasins_ITM.shp). The landcover map for Ireland (LULC2018_IRL_ITM.tif) has the available 35 landcover classes, while the soil map (SOIL_IRL_ITM.tif) has 69 soil classes. It should be noted that SWAT model requires the DEM, landcover and soil maps in a projected co-ordinate system. All the maps and shapefiles in the database has been projected into Irish Transverse Mercator co-ordinate system with an EPSG code of 2157. The landcover map should be reclassified using the landcover classes shown in landcover lookup table (lulc_classes.txt) in order to relate the CORINE landcover classifications with landcover classes recognized by the SWAT model. Similarly, the soil map needs to be reclassified using the soil lookup table (soillookup.txt).

IFI's "https://www.fisheriesireland.ie/what-we-do/research/national-barriers-programme">National Barriers Programme | Inland Fisheries Ireland dashboard is a comprehensive data visualization tool designed to provide a detailed overview of the barriers to fish passage across Ireland's waterways. The dashboard features an interactive map that displays the geographical distribution of barriers, allowing users to zoom in on specific regions and rivers for a closer inspection. Color-coded markers and layers indicate the severity and type of each barrier, ranging from dams and weirs to culverts and other potential obstructions.

Map contains data produced by the "https://gis.epa.ie/GetData">Environmental Protection Agency.

A GIS based quantification of Ireland's freshwater salmon habitat asset to determine the habitat quantity (wetted river and lake surface areas) available to migratory salmonids. The purpose was to inform the further development of salmon stock recruitment models to provide high quality scientific advice to inform the sustainable management of salmon fisheries in Ireland. The identification of these rivers as Salmon, Sea Trout or other types of systems is still valid and has not changed since the 2003 report was published. It should be noted that rivers identified in 2003 as ‘Not considered a significant producer of migratory Salmonids’ or river segments identified as ‘Not utilised by Salmon’ may hold small populations of salmon and/or sea trout which are important in biodiversity terms.Please note that the wetted areas (riverine habitat (m²)) were revised in 2012 (McGinnity et al., 2012). This work built on the 2003 wetted area report (Mc Ginnity et al., 2003).McGinnity, P.,Gargan, P.,Roche, W., Mills, P. & McGarrigle, M. 2003. Quantification of the Freshwater Salmon Habitat Asset in Ireland using data interpreted in a GIS platform. Irish Freshwater Fisheries, Ecology and Management Series: Number 3, Central Fisheries Board, Dublin, Ireland.McGinnity, P. et al., 2012. A predictive model for estimating river habitat area using GIS-derived catchment and river variables. Fisheries Management and Ecology. 19. 69-77. .hidden { display: none }

A GIS based quantification of Ireland's freshwater salmon habitat asset to determine the habitat quantity (wetted river and lake surface areas) available to migratory salmonids. The purpose was to inform the further development of salmon stock recruitment models to provide high quality scientific advice to inform the sustainable management of salmon fisheries in Ireland. The identification of these rivers as Salmon, Sea Trout or other types of systems is still valid and has not changed since the 2003 report was published. It should be noted that rivers identified in 2003 as ‘Not considered a significant producer of migratory Salmonids’ or river segments identified as ‘Not utilised by Salmon’ may hold small populations of salmon and/or sea trout which are important in biodiversity terms.Please note that the wetted areas (riverine habitat (m²)) were revised in 2012 (McGinnity et al., 2012). This work built on the 2003 wetted area report (Mc Ginnity et al., 2003).
McGinnity, P.,Gargan, P.,Roche, W., Mills, P. & McGarrigle, M. 2003. Quantification of the Freshwater Salmon Habitat Asset in Ireland using data interpreted in a GIS platform. Irish Freshwater Fisheries, Ecology and Management Series: Number 3, Central Fisheries Board, Dublin, Ireland.McGinnity, P. et al., 2012. A predictive model for estimating river habitat area using GIS-derived catchment and river variables. Fisheries Management and Ecology. 19. 69-77.

A GIS based quantification of Ireland's freshwater salmon habitat asset to determine the habitat quantity (wetted river and lake surface areas) available to migratory salmonids. The purpose was to inform the further development of salmon stock recruitment models to provide high quality scientific advice to inform the sustainable management of salmon fisheries in Ireland. The identification of these rivers as Salmon, Sea Trout or other types of systems is still valid and has not changed since the 2003 report was published. It should be noted that rivers identified in 2003 as ‘Not considered a significant producer of migratory Salmonids’ or river segments identified as ‘Not utilised by Salmon’ may hold small populations of salmon and/or sea trout which are important in biodiversity terms.Please note that the wetted areas (riverine habitat (m²)) were revised in 2012 (McGinnity et al., 2012). This work built on the 2003 wetted area report (Mc Ginnity et al., 2003).
McGinnity, P.,Gargan, P.,Roche, W., Mills, P. & McGarrigle, M. 2003. Quantification of the Freshwater Salmon Habitat Asset in Ireland using data interpreted in a GIS platform. Irish Freshwater Fisheries, Ecology and Management Series: Number 3, Central Fisheries Board, Dublin, Ireland.McGinnity, P. et al., 2012. A predictive model for estimating river habitat area using GIS-derived catchment and river variables. Fisheries Management and Ecology. 19. 69-77.

A GIS based quantification of Ireland's freshwater salmon habitat asset to determine the habitat quantity (wetted river and lake surface areas) available to migratory salmonids. The purpose was to inform the further development of salmon stock recruitment models to provide high quality scientific advice to inform the sustainable management of salmon fisheries in Ireland. The identification of these rivers as Salmon, Sea Trout or other types of systems is still valid and has not changed since the 2003 report was published. It should be noted that rivers identified in 2003 as ‘Not considered a significant producer of migratory Salmonids’ or river segments identified as ‘Not utilised by Salmon’ may hold small populations of salmon and/or sea trout which are important in biodiversity terms.Please note that the wetted areas (riverine habitat (m²)) were revised in 2012 (McGinnity et al., 2012). This work built on the 2003 wetted area report (Mc Ginnity et al., 2003).
McGinnity, P.,Gargan, P.,Roche, W., Mills, P. & McGarrigle, M. 2003. Quantification of the Freshwater Salmon Habitat Asset in Ireland using data interpreted in a GIS platform. Irish Freshwater Fisheries, Ecology and Management Series: Number 3, Central Fisheries Board, Dublin, Ireland.McGinnity, P. et al., 2012. A predictive model for estimating river habitat area using GIS-derived catchment and river variables. Fisheries Management and Ecology. 19. 69-77.

Abstract: This data shows the embankments forming part of Drainage Districts. Embankments are walls of soil or sods that were constructed to protect low lying ground from flooding (not properties). Drains and sluices or pumps were also provided to take away rainwater that fell behind the embankments. Drainage Districts were carried out by the Commissioners of Public Works under a number of drainage and navigation acts from 1842 to the 1930s to improve land for agriculture and to mitigate flooding. Channels and lakes were deepened and widened, weirs removed, embankments constructed, bridges replaced or modified and various other work was carried out.

Local authorities are charged with responsibility to maintain Drainage Districts. The Arterial Drainage Act, 1945 contains a number of provisions for the management of Drainage Districts in Part III and Part VIII of the act. The Act was amended on a number of occasions, e.g. to transpose EU Regulations and Directives such as the EIA, SEA, and Habitats Directives and the Aarhus Convention.

Lineage: The original sources for the information displayed in this dataset were the maps and descriptive documents, known as the Award, which were created when these schemes were completed to describe the work carried out. These maps were digitised between 2001-2004 from Ordnance Survey of Ireland 1:10,560 six-inch raster data in Irish Grid. Distortion arises from the historic Cassini map projection used in the original maps. Scale along the central meridian and at right angles to it is accurate, but everywhere else, scale, and therefore mapped objects, are distorted in a north-to-south direction.

The amount of distortion on the map increases with distance from the central meridian. In Ireland, the Cassini projection was applied on a county-by-county basis for six-inch mapping, with the central meridian passing through a point near the centre of the county. Therefore, distortion is most evident near county borders, and also in rivers, lakes and streams. Distortion and error inherent in the dataset are amplified during translation and re-projection using Irish Grid and Irish Transverse Mercator.

Purpose: This data has been developed to support the maintenance of Drainage Districts carried out under a number of drainage and navigation acts from 1842 to the 1930s. This work was initially carried out by the Commissioners of Public Works to improve land for agricultural purposes. Local authorities are now charged with the responsibility to maintain the Drainage Districts. Maps and descriptive documents, known as the Award, were created when these schemes were completed to describe the work carried out.