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It contains zonal statistics derived from continuous raster and classed surfaces, which were used to evaluate spatial variation in erosion susceptibility at sub-catchment scale (DRN 2ha watersheds).Key attributes include majority values from input rasters to S-PAL model (Sediment Process Attribute Layer) such as overland flow or \u201cSediment runoff risk\u201d, regolith activity or \u201cGeological risk\u201d, hydrological susceptibility or \u201cSoil permeability\u201d, as well as slope and elevation, S-PAL siblings.The symbology (erosion risk classes) of this layer is based on the attribute field \u201cErosion risk\u201d which is informed by combination of two factors - \u201cGeological risk\u201d and \u201cSediment runoff risk\u201d at 50:50 ratio.For details see the Land & Water Science report (Gunn and Rissmann 2025) - Northland Erosion and Sediment Risk Map - Metadata Report LWS 2026.pdfAttribute field | Field descriptionsMultiple fields, see below:Erosion Risk: 1-5 categories (where 1 = low risk, and 5 = high risk) from composite of two factors - inherent \u201cGeological risk\u201d and \u201cSediment runoff risk\u201d at 50:50 ratioGeological RiskA70_O30_Quantile_Majority to A30_O70_Quantiles_Majority: Majority susceptibility class (1-5) from combined susceptibility layers (at various proportions of regolith and OLF susceptibility e.g. 70% regolith and 30% OLF), where 1 = low susceptibility, 2 = moderately low susceptibility, 3 = moderate susceptibility, 4 = moderately high susceptibility, and 5 = high susceptibility.Sibling_Class_Majority: Majority class from SPAL_4_12_35 rasterAuthor: Dr Clint Rissmann (Land & Water Science)Extent: Whole NorthlandProjection: NZTM (EPSG:2193)Coarsest Scale of Component Dataset: 1:63,000 soil derived informationVersion: Version 2.0Date Created: July 2025Date Modified: May 2026NRC Team (if applicable): Natural Resources Science TeamSubject Matter Expert: Clint Rissmann \u2013 Landscape ScientistFile Size: 4.35 GBData 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Equal weighting was applied to both inputs:Composite Score = 0.5 × Activity + 0.5 × OLFThe resulting surface was scaled from approximately 1.32 to 4.95 (higher values = higher susceptibility), yielding a continuous measure of erosion susceptibility across the landscape. This supports prioritisation and interpretation at fine spatial resolution.For details see the Land & Water Science report (Gunn and Rissmann 2025) - Northland\u2019s Landscape Driven Erosion Map: A Resource for Decision-Makers and CommunitiesAuthor: Dr Clint Rissmann (Land & Water Science)Extent: Whole NorthlandProjection: NZTM (EPSG:2193)Coarsest Scale of Component Dataset: 1:63,000 resampled to 5mVersion: Version 2.0Date Created: July 2025Date Modified: N/ANRC Team (if applicable): Natural Resources Science TeamSubject Matter Expert: Clint Rissmann \u2013 Landscape ScientistFile Size: 1.91 GBRaster Metadata Summary:CRS: NZGD2000 / New Zealand Transverse Mercator (EPSG:2193)Pixel Size: 5 m × 5 mRaster Dimensions: 35,661 (width) × 44,551 (height)Extent: 1567222.5000, 5971572.5000 to 1745527.5000, 6194327.5000GDAL Driver: GTiff (GeoTIFF)Compression: LZWStatistics: Min = 1.3167, Max = 4.9504, Mean = 4.0059, StdDev = 0.1441Valid Data Coverage: 31.27%Data Provided By: Manas Chakraborty (Freshwater Resource Scientist)Data Published By: Bhawana Kafle (Geospatial Analyst)Published Date: 19/02/2026Last Updated By: Jordon Corston (Geospatial Analyst)Last Update Date: 19/05/2026", "geometryType": null, "copyrightText": "Land & Water Science; NRC", "parentLayer": null, "subLayers": [], "minScale": 10000, "maxScale": 0, "defaultVisibility": true, "extent": { "xmin": 1567222.5, "ymin": 5971572.5, "xmax": 1745527.5, "ymax": 6194327.5, "spatialReference": { "wkid": 2193, "latestWkid": 2193, "xyTolerance": 0.001, "zTolerance": 0.001, "mTolerance": 0.001, "falseX": -4020900, "falseY": 1900, "xyUnits": 10000, "falseZ": -100000, "zUnits": 10000, "falseM": -100000, "mUnits": 10000 } }, "hasAttachments": false, "htmlPopupType": "esriServerHTMLPopupTypeNone", "displayField": "", "typeIdField": null, "subtypeFieldName": null, "subtypeField": null, "defaultSubtypeCode": null, "fields": null, "geometryField": {}, "indexes": [], "subtypes": [], "relationships": [], "canModifyLayer": false, "canScaleSymbols": false, "hasLabels": false, "capabilities": "Map,Query", "supportsStatistics": false, "supportsExceedsLimitStatistics": false, "supportsAdvancedQueries": false, "supportedQueryFormats": "JSON, geoJSON, PBF", "isDataVersioned": false, "ownershipBasedAccessControlForFeatures": {"allowOthersToQuery": true}, "useStandardizedQueries": true, "advancedQueryCapabilities": { "useStandardizedQueries": true, "supportsStatistics": false, "supportsPercentileStatistics": false, "supportsHavingClause": false, "supportsOrderBy": false, "supportsDistinct": false, "supportsCountDistinct": false, "supportsAdvancedQueryRelated": true, "supportsQueryRelatedPagination": true, "supportsPagination": false, "supportsLod": false, "supportsQueryWithLodSR": false, "supportsTrueCurve": true, "supportsQueryWithDatumTransformation": true, "supportsReturningQueryExtent": true, "supportsQueryWithDistance": true, "supportsSqlExpression": false, "supportsTimeRelation": true, "supportsSqlFormat": false, "supportsQueryAnalytic": false, "supportsCurrentUserQueries": true }, "supportsDatumTransformation": true, "dateFieldsTimeReference": null, "preferredTimeReference": null, "datesInUnknownTimezone": false, "hasMetadata": true, "isDataArchived": false, "archivingInfo": { "supportsQueryWithHistoricMoment": false, "startArchivingMoment": -1 }, "supportsCoordinatesQuantization": true, "supportsDynamicLegends": true, "serviceItemId": "6d86e27a506849e09ded0b952e67faff" } ], "tables": [] }