River Environment Classification (REC) - WRC

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BIODIVERSITY.sdeadmin.REC2P5_WATERSHEDS_WRC_ENHANCED

File Identifier: 296EC939-16F5-0146-E063-0404560A7E24 Parent Identifier: 2E571E0E-EEE6-4F07-AE0C-5A7F57A4D8DD Hierarchy Level: feature Hierarchy Level Name: Feature Abstract: This layer is derived from the River Environment Classification (REC v2.5) layer. Additional attributes have been added that are useful for biodiversity management projects. In addition, the layer has full regional coverage for coastal areas. 2 km grids were clipped to coastal REC watersheds. Statement: Other Information: REC User Guide : http://discover.wairc.govt.nz/otcs/llisapi.dll?func=ll&objaction=overview&objid=1105336 Keywords: Topic Category: Resource Reference Date: 17-DEC-2024 Metadata Constraints Access Constraints: copyright Use Constraints: copyright Maintenance Information Maintenance frequency: asNeeded Last Load Date: 18-DEC-2024 Spatial Representation Information Recommended Scale: Reference System: EPSG2193 Spatial Representation Type: Vector Grid Geographic Bounding Box GeometricObjectType : geometricObjectCount : 67026 topologyLevel : Number of Dimensions : Cell Geometry : Transformation Param Available : N westBoundLongitude : 1908601.2398 eastBoundLongitude : 1715386.6049 southBoundLatitude : 5645771.3721 northBoundLatitude : 5984122.9576 Responsible Parties Data Constraints Data Access Constraints : license Data Use Constraints: license Data Distribution: Unrestricted Licence Type : Creative Commons Attribution 4.0 International (CC BY 4.0) Licence: https://creativecommons.org/licenses/by/4.0/ Copyright : This work is licensed under a Creative Commons Attribution 4.0 International License. © Waikato Regional Council 2004. WRC REC Catchment/ Watercourse/ Watershed. Data derived from NIWA, MfE, LINZ – Copyright Reserved. Licensed under CC BY 4.0. Data Disclaimers : The standard Waikato Regional Council Disclaimer applies to this data “While Waikato Regional Council has exercised all reasonable skill and care in controlling the contents of this information, Waikato Regional Council accepts no liability in contract, tort or otherwise howsoever, for any loss, damage, injury or expense (whether direct, indirect or consequential) arising out of the provision of this information or its use by you.” Data Use Limits : Download Links URL Format Notes Supporting Information Links URL Format Notes General Notes: Attribute Information Name Description Notes Restricted Primary Key OBJECTID N Y NZSEGMENT The reach identifier. N N IS_HEADWATER Yes/No attribute. When 'Yes' then the watershed is a headwater, meaning it is the origin point of a stream. Headwater watersheds are the primary sources of water in the network. They play a critical role in initiating water flow in the watershed system. N N IS_PRISTINE_SHED A Yes/No attribute indicating whether the watershed is likely in a pristine condition. A watershed is considered pristine if: It has ≥95% native vegetation or water body combined cover (NATIVE_OR_WATER_PERCENT_OF_SHED ≥ 95), AND It is either: A headwater (IS_HEADWATER = 'Yes), OR Is directly downstream of another pristine shed. N N DIRECTLY_DOWNSTREAM_OF_PRISTINE Yes/No attribute. When 'Yes' then the watershed is directly downstream of a pristine watershed. N N NATIVE_VEGETATION_HA The estimated area in hectares of wetland in each watershed. The wetland area is calculated from the Landcover Database. N N NATIVE_VEG_PERCENT_OF_SHED The estimated percent of each watershed which is covered by native vegetation. The native vegetation is calculated from the Landcover Database. N N WETLAND_HA Estimated wetland area (hectares) in each watershed. The wetland area is calculated from the Landcover Database. N N WETLAND_PERCENT_OF_SHED The estimated percent of each watershed which is wetland. This is calculated from the Landcover Database. N N AREA_HA Area in hectares of each watershed or grid. N N DISTANCE_TO_HEADWATER_M Distance in metres to the headwater (upstream water source). N N PRIMARY_TA_CODE The Territorial Authority Code that the water shed has the most overlap with i.e. is mostly within. N N PRIMARY_TA_NAME The Territorial Authority Name that the water shed has the most overlap with i.e. is mostly within. N N PRIMARY_TA_HA The intersection area between the watershed and the Territorial Authority (TA) that is mostly within i.e. the primary TA. N N PRIMARY_TA_PERCENT_OF_SHED The estimated percent of each watershed which is in the Territorial Authority (TA) that it mostly within. N N SECONDARY_TA_CODE The Territorial Authority Code that the watershed has the second most overlap with (i.e., is partially within). N N SECONDARY_TA_NAME The Territorial Authority Name that the watershed has the second most overlap with (i.e., is partially within). N N SECONDARY_TA_HA The intersection area (in hectares) between the watershed and the Territorial Authority (TA) that it is partially within (second most overlap with). N N TERTIARY_TA_CODE The Territorial Authority Code that the watershed has the third most overlap with (i.e., is partially within). N N TERTIARY_TA_NAME The Territorial Authority Name that the watershed has the third most overlap with (i.e., is partially within). N N TERTIARY_TA_HA The intersection area (in hectares) between the watershed and the Territorial Authority (TA) that it is partially within. N N PRIMARY_FMU_NAME The name of the Freshwater Management Unit (FMU) that the watershed has the most overlap with (i.e., is mostly within). N N PRIMARY_FMU_HA The name of the Freshwater Management Unit (FMU) that the watershed has the most overlap with (i.e., is mostly within). N N PRIMARY_FMU_PERCENT_OF_SHED The estimated percent of each watershed which is within the Freshwater Management Unit (FMU) that it mostly overlaps. N N SECONDARY_FMU_NAME The name of the Freshwater Management Unit (FMU) that the watershed has the second most overlap with (i.e., is partially within). N N SECONDARY_FMU_HA The intersection area (in hectares) between the watershed and the Freshwater Management Unit (FMU) that it is partially within (second most overlap with). N N TERTIARY_FMU_NAME The name of the Freshwater Management Unit (FMU) that the watershed has the third most overlap with (i.e., is partially within). N N TERTIARY_FMU_HA The intersection area (in hectares) between the watershed and the Freshwater Management Unit (FMU) that it is partially within (third most overlap with). N N HYDROID A unique number denoting the hydrological processing order of a river segment relative to others in the network. N N NZREACH_REC1 The REC1 identifiying number for the corresponding or closest reach from REC1 (can be used to retrieve the REC management classes). N N LOCAL_ELEVATION_M The mean elevaltion above sea level of the watershed or basin. (metres) N N STREAM_ORDER A number describing the Strahler order a reach in a network of reaches. N N FROM_NODE Unique number of preceding river segment's outlet node. N N TO_NODE Unique number of following river segment's inlet node. N N ID N N SHAPE N N GDB_GEOMATTR_DATA N N

SCIENCE.sdeadmin.REC2P5_WATERSHED

File Identifier: D8168304-779C-5D3E-E055-000000000001 Parent Identifier: 2E571E0E-EEE6-4F07-AE0C-5A7F57A4D8DD Hierarchy Level: feature Hierarchy Level Name: Feature of River Environment Classification (REC) - WRC Abstract: The River Environment Classification (REC) is a database of catchment spatial attributes, summarised for every segment in New Zealand's network of rivers. Statement: The attributes were compiled for the purposes of river classification, while the river network description has been used to underpin models. This layer is a polygon layer of watershed catchments. It is a subset layer of watersheds in the Waikato region. Other Information: REC User Guide : http://discover.wairc.govt.nz/otcs/llisapi.dll?func=ll&objaction=overview&objid=1105336 Keywords: REC,Water,Watershed Topic Category: environment:environmental resources, protection and conservation inlandWaters:inland water features, drainage systems and their characteristics Resource Reference Date: 16-FEB-2022 Metadata Constraints Access Constraints: copyright Use Constraints: copyright Maintenance Information Maintenance frequency: asNeeded Last Load Date: 17-FEB-2022 Spatial Representation Information Recommended Scale: Reference System: EPSG2193 Spatial Representation Type: Vector Grid Geographic Bounding Box GeometricObjectType : geometricObjectCount : 54762 topologyLevel : Number of Dimensions : Cell Geometry : Transformation Param Available : N westBoundLongitude : 1908601.2398 eastBoundLongitude : 1739868.2232 southBoundLatitude : 5645771.3721 northBoundLatitude : 5964408.8349 Responsible Parties Role: processor Position: Organisation: Waikato Regional Council Delivery Point: 160 Ward Street City: Hamilton Central Postal Code: 3204 Country: New Zealand Phone: Fax: Email: Role: resourceProvider Position: Organisation: NIWA Delivery Point: 301 Evans Bay Parade, Hataitai City: Wellington Postal Code: Country: Phone: Fax: Email: Data Constraints Data Access Constraints : copyright Data Use Constraints: copyright Data Distribution: Unrestricted Licence Type : Creative Commons Attribution 4.0 International (CC BY 4.0) Licence: https://creativecommons.org/licenses/by/4.0/ Copyright : This work is licensed under a Creative Commons Attribution 4.0 International License. © Waikato Regional Council 2022. WRC REC Catchment/ Watercourse/ Watershed. Data derived from NIWA, MfE, LINZ – Copyright Reserved. Licensed under CC BY 4.0. Data Disclaimers : The standard Waikato Regional Council Disclaimer applies to this data “While Waikato Regional Council has exercised all reasonable skill and care in controlling the contents of this information, Waikato Regional Council accepts no liability in contract, tort or otherwise howsoever, for any loss, damage, injury or expense (whether direct, indirect or consequential) arising out of the provision of this information or its use by you.” Data Use Limits : Download Links URL Format Notes Supporting Information Links URL Format Notes  https://niwa.co.nz/freshwater-and-estuaries/management-tools/river-environment-classification-0 HTML Source data link General Notes: Attribute Information Name Description Notes Restricted Primary Key HYDROID N N NZSEGMENT N N NZREACH_REC1 N N AREA N N OBJECTID N Y GEOMETRY N N

SCIENCE.sdeadmin.REC2_WATERCOURSE

File Identifier: 7F873FD9-3011-316E-E055-000000000001 Parent Identifier: 2E571E0E-EEE6-4F07-AE0C-5A7F57A4D8DD Hierarchy Level: feature Hierarchy Level Name: Feature of River Environment Classification (REC) - WRC Abstract: Watercourses in the Waikato Region derived from NIWA's REC2 Database. Statement: The River Environment Classification (REC) is a database of catchment spatial attributes, summarised for every segment in New Zealand's network of rivers. The attributes were compiled for the purposes of river classification, while the river network description has been used to underpin models. Other Information: REC User Guide : http://discover.wairc.govt.nz/otcs/llisapi.dll?func=ll&objaction=overview&objid=1105336 Keywords: Catchment,Hydrology,Navigation,REC,Watercourse Topic Category: inlandWaters:inland water features, drainage systems and their characteristics Resource Reference Date: 16-JAN-2019 Metadata Constraints Access Constraints: copyright Use Constraints: copyright Maintenance Information Maintenance frequency: asNeeded Last Load Date: 17-JAN-2019 Spatial Representation Information Recommended Scale: Reference System: EPSG2193 Spatial Representation Type: vector Vector Grid Geographic Bounding Box GeometricObjectType : surface geometricObjectCount : 54761 topologyLevel : geometryOnly Number of Dimensions : 2 Cell Geometry : Transformation Param Available : N westBoundLongitude : 1908332.5411 eastBoundLongitude : 1739868.4215 southBoundLatitude : 5646311.7823 northBoundLatitude : 5964212.0224 Responsible Parties Role: resourceProvider Position: Organisation: NIWA Delivery Point: 301 Evans Bay Parade, Hataitai City: Wellington Postal Code: Country: Phone: Fax: Email: Role: processor Position: Organisation: Waikato Regional Council Delivery Point: 160 Ward Street City: Hamilton Central Postal Code: 3204 Country: New Zealand Phone: Fax: Email: Data Constraints Data Access Constraints : trademark Data Use Constraints: copyright Data Distribution: Unrestricted Licence Type : Creative Commons Attribution 4.0 International (CC BY 4.0) Licence: https://creativecommons.org/licenses/by/4.0/ Copyright : This work is licensed under a Creative Commons Attribution 4.0 International License. © Waikato Regional Council 2020. WRC REC Catchment/ Watercourse/ Watershed. Data derived from NIWA, MfE, LINZ – Copyright Reserved. Licensed under CC BY 4.0. Data Disclaimers : The standard Waikato Regional Council Disclaimer applies to this data “While Waikato Regional Council has exercised all reasonable skill and care in controlling the contents of this information, Waikato Regional Council accepts no liability in contract, tort or otherwise howsoever, for any loss, damage, injury or expense (whether direct, indirect or consequential) arising out of the provision of this information or its use by you.” Data Use Limits : Download Links URL Format Notes Supporting Information Links URL Format Notes  https://niwa.co.nz/freshwater/management-tools/river-environment-classification-0 HTML NIWA - REC2 - River Environment Classification v2.0 General Notes: Attribute Information Name Description Notes Restricted Primary Key NZSEGMENT N N NZREACH_REC1 N N NZFNODE N N NZTNODE N N WTRCRS_M N N ID N Y GEOMETRY N N

SCIENCE.sdeadmin.REC_CATCHMENT

File Identifier: D70C2496-3981-4CBE-A323-4EF2D6B86E24 Parent Identifier: 2E571E0E-EEE6-4F07-AE0C-5A7F57A4D8DD Hierarchy Level: feature Hierarchy Level Name: feature of River Environment Classification (REC) - WRC Abstract: Pre-built hydrological catchments tagged with the catchment name where known. Created from REC1. Statement: * The Ministry for the Environment (MfE) River Environment Classification (REC) v1 data set, supplied by NIWA, contains two primary vector features – one linear feature depicting watercourse and one area feature depicting watershed. These have been modified by Waikato Regional Council (WRC), and have provided the basis for a number of derived layers created by WRC to support ongoing business requirements. *GIS_ALL.REC_CATCHMENT: pre-built hydrological catchments tagged with the catchment name where known. The attribute LEVEL_I_NAME contains single catchments traced upstream from their marine outlet. LEVEL_II_NAME catchments are generally level I catchments which can be amalgamated to compose harbour or estuarine catchments. LEVEL_III_NAME catchments comprise large inland catchments that overlap either level I or II catchments such as the Waipa River Catchment and Lake Taupo Catchment. * Creation Workflow: Created a feature class containing marine outlet reaches for every REC WATERCOURSE throughout the Region using SQL. Exported the REACH_ID values to a text file (789 outlet reaches). Formatted the exported REACH_ID data for multiple reach input into the REC TRACER application to and performed an upstream trace to create 789 river network feature classes. Exported the river networks to MapInfo and created a script to build catchment features for each hydrological network and append the results into a single GIS feature. Added three text attributes (LEVEL_I_NAME, LEVEL_II_NAME and LEVEL_III_NAME to hold the catchment names. Populated the level I attribute by transferring name data from the feature class GIS_ALL.HYD_50K_RIVER_NAMED, these names were later corrected (July 2008) to fix some spelling mistakes. Added attribute OUTPUT_REACH (Text) which is the outlet reach of the catchments defined in terms of REC REACH_ID. Selected groups of level I catchments representing estuarine catchments and populated the LEVEL_II_NAME attribute with the estuary name. Individually traced catchments representing larger inland catchments that overlap level I and II catchments such as the Waipa River, Karapiro to Taupo Gates, Lake Taupo catchments and appended these to the catchment layer. Normalised the geometry to a location precision of 1mm and ran geometry cleaning tools. Other Information: *Data Quality: The basis of the REC system (v1) is a synthetic river network derived from a hydrologically corrected digital elevation model. The DEM used was built at a 30m-pixel size by NIWA using 20m contour data from the NZMS260 map series. The DEM was then hydrologically corrected using the river lines from the NZMS260 maps as a guide. The river lines themselves had been manually corrected by hand by NIWA based on expert advice from representatives from every regional authority. *Attribute Accuracy: Each of the key REC attributes was obtained through different processing methods. Refer to the REC User Guide pdf (DOC# 973680) for detailed explanation. *Completeness: The original RECv1 supplied data is complete for the whole of New Zealand. *Logical Consistency: The REACH_ID of each watercourse segment matches the REACH_ID of it’s equivalent watershed. Each watercourse has a NZTNODE (to node) and NZFNODE (from node) attribute. This can be imagined as a unique set of numbers for watercourse intersections, running downstream. E.g. a NZTNODE value for an upstream segment will be the same as the NZFNODE of the immediate downstream segment. Using this logic we are able to trace upstream and downstream from any watercourse segment. See EWDOCS# 1056230 for further detailed information about using the REC Tracer Application developed for WRC’s Oracle REC dataset. Keywords: Catchment,Download,REC,River,Stream,Waikato Data Portal,Watershed,Waterway Topic Category: inlandWaters:inland water features, drainage systems and their characteristics Resource Reference Date: 17-FEB-2010 Metadata Constraints Access Constraints: copyright Use Constraints: copyright Maintenance Information Maintenance frequency: notPlanned Last Load Date: 12-JUL-2013 Spatial Representation Information Recommended Scale: Reference System: EPSG2193 Spatial Representation Type: vector Vector Grid Geographic Bounding Box GeometricObjectType : surface geometricObjectCount : 788 topologyLevel : geometryOnly Number of Dimensions : 2 Cell Geometry : Transformation Param Available : N westBoundLongitude : 1907263.28 eastBoundLongitude : 1739844.885 southBoundLatitude : 5645902.884 northBoundLatitude : 5961211.564 Responsible Parties Role: author Position: Team Leader - Spatial Information and Data Management Organisation: Waikato Regional Council Delivery Point: 160 Ward Street City: Hamilton Central Postal Code: 3204 Country: New Zealand Phone: Fax: Email: Role: resourceProvider Position: Organisation: NIWA Delivery Point: 301 Evans Bay Parade, Hataitai City: Wellington Postal Code: Country: Phone: Fax: Email: Data Constraints Data Access Constraints : license Data Use Constraints: license Data Distribution: Unrestricted Licence Type : Creative Commons Attribution 4.0 International (CC BY 4.0) Licence: https://creativecommons.org/licenses/by/4.0/ Copyright : This work is licensed under a Creative Commons Attribution 4.0 International License. © Waikato Regional Council 2004 . WRC REC Catchment/ Watercourse/ Watershed. Data derived from NIWA, MfE, LINZ – Copyright Reserved. Licensed under CC BY 4.0. Data Disclaimers : The standard Waikato Regional Council Disclaimer applies to this data “While Waikato Regional Council has exercised all reasonable skill and care in controlling the contents of this information, Waikato Regional Council accepts no liability in contract, tort or otherwise howsoever, for any loss, damage, injury or expense (whether direct, indirect or consequential) arising out of the provision of this information or its use by you.” Data Use Limits : Download Links URL Format Notes  https://data-waikatolass.opendata.arcgis.com/datasets/86d0092d20244012a41a100044568feb Download @ Waikato Data Portal Supporting Information Links URL Format Notes General Notes: Attribute Information Name Description Notes Restricted Primary Key GEOMETRY N N OUTLET_REACH N N LEVEL_I_NAME N N LEVEL_II_NAME N N LEVEL_III_NAME N N SOURCE N N AREA_HA N N PERIMETER_M N N ID N Y

SCIENCE.sdeadmin.REC_CENTROID

File Identifier: E439EEBA-5F0D-4EB2-9DD7-F3BCA1042B17 Parent Identifier: E22C7CD3-C76D-48CE-BB12-92060A95C7E7 Hierarchy Level: feature Hierarchy Level Name: feature of River Environment Classification (REC) - WRC Abstract: This is a geo-centroid created from each REC1 Watershed polygon. Statement: This is a geo-centroid created from each RECv1 Watershed polygon. At time of creation it was given just the REACH_ID and DISTSEA_M attributes but more can easily be added. It was created solely to provide additional analysis options over and above the REC linear and polygon features. It was created using the oracle spatial function sdo_aggr_centroid. Other Information: Keywords: Catchment,Download,REC,Waikato Data Portal,Watercourse,Watershed Topic Category: inlandWaters:inland water features, drainage systems and their characteristics Resource Reference Date: 23-AUG-2011 Metadata Constraints Access Constraints: copyright Use Constraints: copyright Maintenance Information Maintenance frequency: notPlanned Last Load Date: 23-AUG-2011 Spatial Representation Information Recommended Scale: Reference System: EPSG2193 Spatial Representation Type: vector Vector Grid Geographic Bounding Box GeometricObjectType : point geometricObjectCount : 50809 topologyLevel : geometryOnly Number of Dimensions : Cell Geometry : Transformation Param Available : N westBoundLongitude : 1906698.5821 eastBoundLongitude : 1740531.9835 southBoundLatitude : 5646597.3255 northBoundLatitude : 5964177.2604 Responsible Parties Role: author Position: GIS and Data Management Team Leader Organisation: Waikato Regional Council Delivery Point: 160 Ward Street City: Hamilton Central Postal Code: 3204 Country: New Zealand Phone: Fax: Email: Data Constraints Data Access Constraints : license Data Use Constraints: license Data Distribution: Unrestricted Licence Type : Creative Commons Attribution 4.0 International (CC BY 4.0) Licence: https://creativecommons.org/licenses/by/4.0/ Copyright : This work is licensed under a Creative Commons Attribution 4.0 International License. © Waikato Regional Council 2004 . WRC REC Catchment/ Watercourse/ Watershed. Data derived from NIWA, MfE, LINZ – Copyright Reserved. Licensed under CC BY 4.0. Data Disclaimers : The standard Waikato Regional Council Disclaimer applies to this data “While Waikato Regional Council has exercised all reasonable skill and care in controlling the contents of this information, Waikato Regional Council accepts no liability in contract, tort or otherwise howsoever, for any loss, damage, injury or expense (whether direct, indirect or consequential) arising out of the provision of this information or its use by you.” Data Use Limits : Download Links URL Format Notes  https://data-waikatolass.opendata.arcgis.com/datasets/8088e9ba8c8e410186f6ef4a3d3064a4 Download @ Waikato Data Portal Supporting Information Links URL Format Notes General Notes: Attribute Information Name Description Notes Restricted Primary Key GEOMETRY N N REACH_ID N N DISTSEA_M N N OUTLET_REACH N N LEVEL_I_NAME N N LEVEL_II_NAME N N LEVEL_III_NAME N N ID N N

SCIENCE.sdeadmin.REC_LAKE_NAMED

File Identifier: 2E83B710-1EEF-4416-ADAF-657F95FFE6C8 Parent Identifier: E22C7CD3-C76D-48CE-BB12-92060A95C7E7 Hierarchy Level: feature Hierarchy Level Name: feature of River Environment Classification (REC) - WRC Abstract: To be used together with REC_WATERCOURSE_NAMED this layer includes all lakes that comprise a watercourse with rivers and streams in REC_WATERCOURSE_NAMED. Created from REC1. Statement: Created by WRC during the creation of REC_WATERCOURSE_NAMED in order to represent a logically complete water course from headwater to outlet. Uses NZTopo50 hydro geometries and REC_WATERCOURSE_NAMED (REC + NZTop50 + derived) attributes. Specifically, it includes lakes that these rivers and streams flow into and/or which flow into rivers and streams. The result is that the FLOWS_INTO attribute of each REC_WATERCOURSE_NAMED should be represented by either another feature in REC_WATERCOURSE_NAMED or in REC_LAKE_NAMED. Other Information: Keywords: Download,Lake,REC,Waikato Data Portal Topic Category: inlandWaters:inland water features, drainage systems and their characteristics Resource Reference Date: 17-DEC-2012 Metadata Constraints Access Constraints: copyright Use Constraints: copyright Maintenance Information Maintenance frequency: notPlanned Last Load Date: 07-DEC-2012 Spatial Representation Information Recommended Scale: Reference System: EPSG2193 Spatial Representation Type: vector Vector Grid Geographic Bounding Box GeometricObjectType : curve geometricObjectCount : 88 topologyLevel : geometryOnly Number of Dimensions : 2 Cell Geometry : Transformation Param Available : N westBoundLongitude : 1895230.1381 eastBoundLongitude : 1748442.3843 southBoundLatitude : 5657358.6281 northBoundLatitude : 5896059.4153 Responsible Parties Role: author Position: GIS and Data Management Team Leader Organisation: Waikato Regional Council Delivery Point: 160 Ward Street City: Hamilton Central Postal Code: 3204 Country: New Zealand Phone: Fax: Email: Data Constraints Data Access Constraints : license Data Use Constraints: license Data Distribution: Unrestricted Licence Type : Creative Commons Attribution 4.0 International (CC BY 4.0) Licence: https://creativecommons.org/licenses/by/4.0/ Copyright : This work is licensed under a Creative Commons Attribution 4.0 International License. © Waikato Regional Council 2004 . WRC REC Catchment/ Watercourse/ Watershed. Data derived from NIWA, MfE, LINZ – Copyright Reserved. Licensed under CC BY 4.0. Data Disclaimers : The standard Waikato Regional Council Disclaimer applies to this data “While Waikato Regional Council has exercised all reasonable skill and care in controlling the contents of this information, Waikato Regional Council accepts no liability in contract, tort or otherwise howsoever, for any loss, damage, injury or expense (whether direct, indirect or consequential) arising out of the provision of this information or its use by you.” Data Use Limits : Note that this is not (yet) designed as a definitive lakes layer. Download Links URL Format Notes  https://data-waikatolass.opendata.arcgis.com/datasets/c5cd8c8f57b444538d6c8011be3c8c59 Download @ Waikato Data Portal Supporting Information Links URL Format Notes General Notes: Attribute Information Name Description Notes Restricted Primary Key WATERWAY_NAME NZTopo50 name of lake N N CODE Unique code (see REC_WATERCOURSE_NAMED) of the river/stream immediately downstream of the lake N N FLOWS_INTO name of the river/stream that the lake flows into This is particularly useful to differentiate between waterways of the same name and can also be used to identify and locate waterways within parent systems. N N LAKE_AREA_HA Total area in hectares of the lake N N DOWNSTREAM_REACH NZ reach value of the REC reach immediately downstream of the lake N N MIN_DISTSEA_M minimum distance to sea of this waterway (inherited from the REC downstream reach) N N COMMENTS Additional information about this lake N N ID unique numeric identifier N Y GEOMETRY N N

SCIENCE.sdeadmin.REC_WATERCOURSE

File Identifier: AA958F98-AA29-4E61-938D-2892584B6B2D Parent Identifier: 2E571E0E-EEE6-4F07-AE0C-5A7F57A4D8DD Hierarchy Level: feature Hierarchy Level Name: Feature River Environment Classification (REC) - WRC Abstract: Watercourses within the Waikato Region created from NIWA's REC 1 Database. Statement: The newer WRC REC 2 Watercourse layer - SCIENCE.sdeadmin.REC2_WATERCOURSE Other Information: REC User Guide : http://discover.wairc.govt.nz/otcs/llisapi.dll?func=ll&objaction=overview&objid=1105336 Keywords: Water,Watercourse Topic Category: inlandWaters:inland water features, drainage systems and their characteristics Resource Reference Date: 02-DEC-2019 Metadata Constraints Access Constraints: copyright Use Constraints: copyright Maintenance Information Maintenance frequency: notPlanned Last Load Date: 22-DEC-2018 Spatial Representation Information Recommended Scale: Reference System: EPSG2193 Spatial Representation Type: vector Vector Grid Geographic Bounding Box GeometricObjectType : curve geometricObjectCount : 50723 topologyLevel : geometryOnly Number of Dimensions : 2 Cell Geometry : Transformation Param Available : N westBoundLongitude : 1906671.48 eastBoundLongitude : 1739889.871 southBoundLatitude : 5646338.276 northBoundLatitude : 5960926.975 Responsible Parties Role: resourceProvider Position: Organisation: NIWA Delivery Point: 301 Evans Bay Parade, Hataitai City: Wellington Postal Code: Country: Phone: Fax: Email: Role: processor Position: Organisation: Waikato Regional Council Delivery Point: 160 Ward Street City: Hamilton Central Postal Code: 3204 Country: New Zealand Phone: Fax: Email: Data Constraints Data Access Constraints : copyright Data Use Constraints: copyright Data Distribution: Unrestricted Licence Type : CC BY 4.0 Licence: https://creativecommons.org/licenses/by/4.0 Copyright : This work is licensed under a Creative Commons Attribution 4.0 International License. © Waikato Regional Council 2018 . WRC REC Catchment/ Watercourse/ Watershed. Data derived from NIWA, MfE, LINZ – Copyright Reserved. Licensed under CC BY 4.0. Data Disclaimers : While Waikato Regional Council has exercised all reasonable skill and care in controlling the contents of this information, Waikato Regional Council accepts no liability in contract, tort or otherwise howsoever, for any loss, damage, injury or expense (whether direct, indirect or consequential) arising out of the provision of this information or its use by you. Data Use Limits : Download Links URL Format Notes Supporting Information Links URL Format Notes General Notes: Attribute Information Name Description Notes Restricted Primary Key REACH_ID N N NZREACH N N NZFNODE N N NZTNODE N N CATCHAREA_M2 N N DISTSEA_M N N LENGTH_M N N SPRING N N STM_ORDER N N TAUPO_REACH N N CLIMATE N N SRC_OF_FLW N N GEOLOGY N N LANDCOVER N N NET_POSN N N VLY_LNDFRM N N CSOF N N CSOFG N N CSOFGL N N CSOFGLNP N N CSOFGLNPVL N N GEOMETRY N N US_LENGTH_M N N LC_UP_UNMOD_M2 N N LC_UP_AREA_M2 N N LC_UP_UNMOD_PERC N N PAST_UP_CODE N N ID N N

SCIENCE.sdeadmin.REC_WATERCOURSE_NAMED

File Identifier: F4B56A9F-EB2E-4872-92EF-44074AC05471 Parent Identifier: E22C7CD3-C76D-48CE-BB12-92060A95C7E7 Hierarchy Level: feature Hierarchy Level Name: Feature of River Environment Classification (REC) - WRC Abstract: This layer is a definitive named and numbered set of waterways using REC1 spatial data to depict every named stream and river present on the NZTopo50 map series within Waikato Region. Statement: Names are adopted from NZTopo50; numbers are adapted from the historic Rivers of New Zealand numbering system (additional digits were added in order to uniquely define every named parent/child waterway). NIWA had provided a non-spatial list of named REC reaches which proved to be incomplete and contained some errors. Similarly the historic Rivers of New Zealand data proved very limited so was enhanced during a manual matching process of these inputs against the topographic data. The end result is a linear data layer of REC waterways (each stream or river created from all reaches comprising the uniquely defined waterway). Other Information: REC User Guide : http://discover.wairc.govt.nz/otcs/llisapi.dll?func=ll&objaction=overview&objid=1105336 Keywords: Download,REC,River,Stream,Waikato Data Portal,Watercourse,Waterway Topic Category: inlandWaters:inland water features, drainage systems and their characteristics Resource Reference Date: 11-JAN-2012 Metadata Constraints Access Constraints: copyright Use Constraints: copyright Maintenance Information Maintenance frequency: asNeeded Last Load Date: 11-JAN-2012 Spatial Representation Information Recommended Scale: Reference System: EPSG2193 Spatial Representation Type: vector Vector Grid Geographic Bounding Box GeometricObjectType : curve geometricObjectCount : 1711 topologyLevel : geometryOnly Number of Dimensions : 2 Cell Geometry : Transformation Param Available : N westBoundLongitude : 1906192.401 eastBoundLongitude : 1739889.871 southBoundLatitude : 5647083.302 northBoundLatitude : 5960926.975 Responsible Parties Role: Position: Organisation: Waikato Regional Council Delivery Point: 160 Ward Street City: Hamilton Central Postal Code: 3204 Country: New Zealand Phone: Fax: Email: Data Constraints Data Access Constraints : license Data Use Constraints: license Data Distribution: Unrestricted Licence Type : Creative Commons Attribution 4.0 International (CC BY 4.0) Licence: https://creativecommons.org/licenses/by/4.0/ Copyright : This work is licensed under a Creative Commons Attribution 4.0 International License. © Waikato Regional Council 2012 . WRC REC Catchment/ Watercourse/ Watershed. Data derived from NIWA, MfE, LINZ – Copyright Reserved. Licensed under CC BY 4.0. Data Disclaimers : The standard Waikato Regional Council Disclaimer applies to this data “While Waikato Regional Council has exercised all reasonable skill and care in controlling the contents of this information, Waikato Regional Council accepts no liability in contract, tort or otherwise howsoever, for any loss, damage, injury or expense (whether direct, indirect or consequential) arising out of the provision of this information or its use by you.” Data Use Limits : Download Links URL Format Notes  https://data-waikatolass.opendata.arcgis.com/datasets/a8211793c5ce4fd3bedf0d68acd49b19 Download @ Waikato Data Portal Supporting Information Links URL Format Notes General Notes: Attribute Information Name Description Notes Restricted Primary Key WATERWAY_NAME NZTopo50 name or river or stream non-unique because names can occur multiple times across the region N N CODE Unique code adapted from historic Rivers of NZ numbering system A major river will have its own unique base number and tributaries of that will share the base number and have a unique numerical suffix. For example Awakino River has code = 409_0000; Awanui Stream, which flows into Awakino R has code = 409_0100 (tributaries of Awanui Stream will start numbering at 409_0110 and so on). N N FLOWS_INTO name of the waterway that this one flows into This is particularly useful to differentiate between waterways of the same name and can also be used to identify and locate waterways within parent systems. N N WATERWAY_LENGTH_M Total length in metres of the waterway N N DOWNSTREAM_REACH NZ reach value of the downstream REC reach forming this waterway N N UPSTREAM_REACH NZ reach value of the upstream REC reach forming this waterway N N MIN_DISTSEA_M minimum distance to sea of this waterway (inherited from the REC downstream reach) N N MAX_DISTSEA_M maximum distance to sea of this waterway (inherited from the REC upstream reach) N N COASTAL_OUTLET a flag indicating if this waterway outlets directly to the coast; a “Y” indicates it does; a null value indicates it does not N N COMMENTS Additional information about this waterway e.g. Waitakaruru River (090_0000) has a comment “Includes Waitakaruru Canal” N N ID unique numeric identifier N Y GEOMETRY N N

SCIENCE.sdeadmin.REC_WATERSHED

File Identifier: D615F42F-01C8-4750-AF26-3C87ACDBEA08 Parent Identifier: 2E571E0E-EEE6-4F07-AE0C-5A7F57A4D8DD Hierarchy Level: feature Hierarchy Level Name: feature of River Environment Classification (REC) - WRC Abstract: WRC modified REC v1 watersheds Statement: Removed all nodes (vertices) where the angle between the incoming line and outgoing line was ~180° i.e. nodes on a straight line. The Geomedia Simplification Tool was used, with variables set as Tolerance = 0.005m, Distance – 0.005m and Method = Douglas-Pueker. This reduced total number nodes by ~50%, which dramatically improves performance – 56% quicker to load. Discontiguous watersheds (those with the same REACH_ID value) were merged. Summed AREA and PERIMETER values for merged geometries. Added a column TAUPO_REACH. Updated to ‘Y’ where REACH_ID = REC_WATERCOURSE.REACH_ID and REC_WATERCOURSE.TAUPO_REACH = ‘Y’. Other data modifications – made the REACH_ID column the primary key; renamed AREA as AREA_M2 and PERIMETER as PERIMETER_M; removed the GRIDCODE column. Other Information: Keywords: Catchment,REC,Watershed Topic Category: inlandWaters:inland water features, drainage systems and their characteristics Resource Reference Date: 17-FEB-2010 Metadata Constraints Access Constraints: copyright Use Constraints: copyright Maintenance Information Maintenance frequency: notPlanned Last Load Date: 25-MAR-2005 Spatial Representation Information Recommended Scale: Reference System: EPSG2193 Spatial Representation Type: vector Vector Grid Geographic Bounding Box GeometricObjectType : surface geometricObjectCount : 50809 topologyLevel : geometryOnly Number of Dimensions : Cell Geometry : Transformation Param Available : N westBoundLongitude : 1907263.276 eastBoundLongitude : 1739844.886 southBoundLatitude : 5645902.879 northBoundLatitude : 5964478.935 Responsible Parties Role: processor Position: GIS and Data Management Team Leader Organisation: Waikato Regional Council Delivery Point: 160 Ward Street City: Hamilton Central Postal Code: 3204 Country: New Zealand Phone: Fax: Email: Data Constraints Data Access Constraints : license Data Use Constraints: license Data Distribution: Unrestricted Licence Type : Creative Commons Attribution 4.0 International (CC BY 4.0) Licence: https://creativecommons.org/licenses/by/4.0/ Copyright : This work is licensed under a Creative Commons Attribution 4.0 International License. © Waikato Regional Council 2004 . WRC REC Catchment/ Watercourse/ Watershed. Data derived from NIWA, MfE, LINZ – Copyright Reserved. Licensed under CC BY 4.0. Data Disclaimers : The standard Waikato Regional Council Disclaimer applies to this data “While Waikato Regional Council has exercised all reasonable skill and care in controlling the contents of this information, Waikato Regional Council accepts no liability in contract, tort or otherwise howsoever, for any loss, damage, injury or expense (whether direct, indirect or consequential) arising out of the provision of this information or its use by you.” Data Use Limits : Download Links URL Format Notes Supporting Information Links URL Format Notes General Notes: Attribute Information Name Description Notes Restricted Primary Key REACH_ID N N GEOMETRY N N AREA_M N N PERIMETER_M N N NZREACH N N TAUPO_REACH N N