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LiDAR (Light Detection and Ranging) is a remote sensing technology, i.e. the technology is not in direct contact with what is being measured. From satellite, aeroplane or helicopter, a LiDAR system sends a light pulse to the ground. This pulse hits the ground and returns back to a sensor on the system. The time is recorded to measure how long it takes for this light to return. Knowing this time measurement scientists are able to create topography maps.<\/SPAN><\/SPAN><\/P>

LiDAR data are collected as points (X,Y,Z (x & y coordinates) and z (height)). The data is then converted into gridded (GeoTIFF) data to create a Digital Terrain Model and Digital Surface Model of the earth. This LiDAR data was collected between June and October 2018.<\/SPAN><\/SPAN><\/P>

This data shows the areas in Ireland for which you can download LiDAR data and contains links to download the data. <\/SPAN><\/SPAN><\/P>

This is a vector dataset. Vector data portray the world using points, lines, and polygons (areas).<\/SPAN><\/SPAN><\/P>

The LiDAR coverage is shown as polygons. Each polygon is 2000m by 2000m in size and holds information on:<\/SPAN><\/SPAN><\/P>

Location - County the data is located in.<\/SPAN><\/SPAN><\/P>

Data Provider - Who provided the data.<\/SPAN><\/SPAN><\/P>

Data URL - A link to download the LiDAR raster data in 2000m by 2000m sections.<\/SPAN><\/SPAN><\/P>

General Comment - Licencing details.<\/SPAN><\/SPAN><\/P>

Published Date - Date the data was published online.<\/SPAN><\/SPAN><\/P>

Data Owner Identifier <\/SPAN><\/SPAN>\u2013<\/SPAN><\/SPAN>Data owner.<\/SPAN><\/SPAN><\/P>

Data Surveyor <\/SPAN><\/SPAN>\u2013<\/SPAN><\/SPAN>Data collector.<\/SPAN><\/SPAN><\/P>

RMS Error - Root Mean Square Error in the z.<\/SPAN><\/SPAN><\/P>

Capture Date -Date data was captured.<\/SPAN><\/SPAN><\/P>

Resolution - Horizontal resolution of the data - grid cell size.<\/SPAN><\/SPAN><\/P>

Data Originator <\/SPAN><\/SPAN>\u2013<\/SPAN><\/SPAN>Organisation the data originates from.<\/SPAN><\/SPAN><\/P><\/DIV>", "geometryType": "esriGeometryPolygon", "sourceSpatialReference": { "wkid": 2157, "latestWkid": 2157, "xyTolerance": 0.001, "zTolerance": 0.001, "mTolerance": 0.001, "falseX": -5022200, "falseY": -15179500, "xyUnits": 10000, "falseZ": 0, "zUnits": 1, "falseM": 0, "mUnits": 1 }, "copyrightText": "Contains Irish Public Sector Data (Geological Survey Ireland) licensed under a Creative Commons Attribution 4.0 International (CC BY 4.0) licence", "parentLayer": null, "subLayers": [], "minScale": 0, "maxScale": 0, "referenceScale": 0.0, "drawingInfo": { "renderer": { "type": "simple", "symbol": { "type": "esriSFS", "style": "esriSFSSolid", "color": [ 0, 0, 0, 0 ], "outline": { "type": "esriSLS", "style": "esriSLSSolid", "color": [ 0, 38, 115, 255 ], "width": 2 } } }, "scaleSymbols": true, "transparency": 0, "labelingInfo": null }, "defaultVisibility": true, "extent": { "xmin": 512000, "ymin": 694000, "xmax": 604000, "ymax": 768000, "spatialReference": { "wkid": 2157, "latestWkid": 2157, "xyTolerance": 0.001, "zTolerance": 2.0E-4, "mTolerance": 2.0E-4, "falseX": -5022200, "falseY": -15179500, "xyUnits": 4.503464523434792E8, "falseZ": -100000, "zUnits": 10000, "falseM": -100000, "mUnits": 10000 } }, "hasAttachments": false, "htmlPopupType": "esriServerHTMLPopupTypeAsHTMLText", "displayField": "LOCATION", "typeIdField": null, "subtypeFieldName": null, "subtypeField": null, "defaultSubtypeCode": null, "fields": [ { "name": "OBJECTID", "type": "esriFieldTypeOID", "alias": "OBJECTID", "domain": null }, { "name": "LOCATION", "type": "esriFieldTypeString", "alias": "LOCATION", "length": 30, "domain": null }, { "name": "BLOCK_ID", "type": "esriFieldTypeString", "alias": "BLOCK_ID", "length": 20, "domain": null }, { "name": "OWNER", "type": "esriFieldTypeString", "alias": "OWNER", "length": 50, "domain": null }, { "name": "URL", "type": "esriFieldTypeString", "alias": "URL", "length": 254, "domain": null }, { "name": "COMMENT_", "type": "esriFieldTypeString", "alias": "COMMENT_", "length": 254, "domain": null }, { "name": "PUBLISHDAT", "type": "esriFieldTypeDate", "alias": "PUBLISHDAT", "length": 8, "domain": null }, { "name": "SURVEYOR", "type": "esriFieldTypeString", "alias": "SURVEYOR", "length": 150, "domain": null }, { "name": "RMS_ERROR", "type": "esriFieldTypeString", "alias": "RMS_ERROR", "length": 50, "domain": null }, { "name": "CAPTURE_DATE", "type": "esriFieldTypeString", "alias": "CAPTURE_DATE", "length": 50, "domain": null }, { "name": "RESOLUTION", "type": "esriFieldTypeDouble", "alias": "RESOLUTION", "domain": null }, { "name": "DATA_ORIGIN", "type": "esriFieldTypeString", "alias": "DATA_ORIGIN", "length": 70, "domain": null }, { "name": "SHAPE", "type": "esriFieldTypeGeometry", "alias": "SHAPE", "domain": null }, { "name": "SHAPE.AREA", "type": "esriFieldTypeDouble", "alias": "SHAPE.AREA", "domain": null }, { "name": "SHAPE.LEN", "type": "esriFieldTypeDouble", "alias": "SHAPE.LEN", "domain": null } ], "geometryField": { "name": "SHAPE", "type": "esriFieldTypeGeometry", "alias": "SHAPE" }, "indexes": [ { "name": "R326_SDE_ROWID_UK", "fields": "OBJECTID", "isAscending": true, "isUnique": true, "description": "" }, { "name": "A272_IX1", "fields": "SHAPE", "isAscending": true, "isUnique": true, "description": "" } ], "subtypes": [], "relationships": [], "canModifyLayer": true, "canScaleSymbols": false, "hasLabels": false, "capabilities": "Query,Map,Data", "maxRecordCount": 2000, "supportsStatistics": true, "supportsExceedsLimitStatistics": true, "supportsAdvancedQueries": true, "supportedQueryFormats": "JSON, geoJSON, PBF", "isDataVersioned": false, "ownershipBasedAccessControlForFeatures": {"allowOthersToQuery": true}, "useStandardizedQueries": true, "advancedQueryCapabilities": { "useStandardizedQueries": true, "supportsStatistics": true, "supportsPercentileStatistics": true, "supportsHavingClause": true, "supportsOrderBy": true, "supportsDistinct": true, "supportsCountDistinct": true, "supportsPagination": true, "supportsTrueCurve": true, "supportsQueryWithDatumTransformation": true, "supportsReturningQueryExtent": true, "supportsQueryWithDistance": true, "supportsSqlExpression": true }, "supportsDatumTransformation": true, "dateFieldsTimeReference": null, "hasMetadata": true, "isDataArchived": false, "archivingInfo": { "supportsQueryWithHistoricMoment": false, "startArchivingMoment": -1 }, "supportsCoordinatesQuantization": true, "supportsDynamicLegends": true, "serviceItemId": "583f673cfe344827a4daa537ab2e85af" }