| | | File Identifier: | 52B4B66E-27E9-4005-A297-E7BA527D0474 | Parent Identifier: | 3AAFB5C0-4801-4052-B100-561537B4C143 |
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| Hierarchy Level: | feature | Hierarchy Level Name: | feature of Catchments - GIS Layer |
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| Abstract: | Catchment polygons for part of the region and associated attributes. All catchments are from confluence with another river or coast. Partial catchments (..._PARTL) are from arbitrary points within the catchment (e.g. flow recorder locations) or are combinations of multiple catchments (e.g. Hauraki Gulf catchment). |
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| Statement: | The main attribute (Name) was determined by overlaying the polygons on NZMS260 map sheets and identifying the main watercourse in that polygon.
The accuracy of the derived attribute information for each polygon is unknown. |
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| Other Information: | Logical consistency is high.
Spatial data for this layer was captured from 2000 onwards by digitising from 1:50,000 topographic sheets. The dates of publication for these sheets are unknown. Catchments are added to the layer as required.
This dataset was captured from 1:50,000 topographic sheets using contours and watercourses as visual aids. Catchment polygons are therefore no more accurate than the standard displacement error of these features represented on a 1:50,000 map (for contours this level of accuracy is described as: 90% of well-defined features are within ± 22m of their true position and within ± 10 metres of their true height). However the actual accuracy of the spatial data is estimated to be +/- 200 metres at best. The data is very subjective in areas with sinkholes, underground streams or drains.
The data are stored in an Intergraph GIS format. The source data is stored as polygons in Waikato Regional Council's Oracle database. |
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| Keywords: | Catchment,Download |
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| Topic Category: | inlandWaters:inland water features, drainage systems and their characteristics |
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| Resource Reference Date: | 06-DEC-2006 |
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Metadata Constraints| Access Constraints: | copyright |
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| Use Constraints: | copyright |
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Maintenance Information| Maintenance frequency: | notPlanned |
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| Last Load Date: | 23-MAR-2019 |
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Spatial Representation Information| Recommended Scale: | 1:50000 |
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| Reference System: | EPSG2193 |
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| Spatial Representation Type: | vector |
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| Vector | Grid | Geographic Bounding Box |
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| GeometricObjectType : | surface |
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| geometricObjectCount : | 37 |
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| topologyLevel : | geometryOnly |
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| | Number of Dimensions : | |
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| Cell Geometry : | |
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| Transformation Param Available : | N |
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| | westBoundLongitude : | 1897807.09 |
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| eastBoundLongitude : | 1752091.756 |
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| southBoundLatitude : | 5718683.535 |
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| northBoundLatitude : | 5983445.601 |
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Responsible Parties| Role: | author |
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| Position: | GIS and Data Management Team Leader |
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| Organisation: | Waikato Regional Council |
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| Delivery Point: | 160 Ward Street |
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| City: | Hamilton Central |
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| Postal Code: | 3204 |
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| Country: | New Zealand |
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| Phone: | |
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| Fax: | |
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| Email: | |
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Data Constraints| Data Access Constraints : | copyright |
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| Data Use Constraints: | copyright |
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| Data Distribution: | Unrestricted |
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| Licence Type : | To be determined |
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| Licence: | |
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| Copyright : | Any printed material containing these boundaries must contain the following Disclaimer message:
“The catchment boundaries are watershed delineations and have no relationship to Waikato Regional Council’s Regional boundary, or to any property boundaries. These catchment boundaries are not Waikato Regional Council legal boundaries. The boundaries have been captured from the NZMS260 map sheet series and are accurate to +/- 200 metres at best. The boundaries are very subjective in areas with sinkholes, underground streams or drains. The boundaries are not suitable for use in detailed, property-specific analysis. Catchments derived by Waikato Regional Council. COPYRIGHT RESERVED.”
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| 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.” |
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| Data Use Limits : | Subjective in areas of sinkholes, underground streams and drains. The accuracy of the derived attribute information for each polygon is unknown. Users should be aware that this dataset is limited in it spatial accuracy. |
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Download LinksSupporting Information Links
General Notes:Attribute Information| Name | Description | Notes | Restricted | Primary Key |
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| ID | Unique Numeric Identifier | | N | Y | | CATCHMENT_NAME | Name of catchment | | N | N | | CATCHMENT_LOCATION | Location of catchment | | N | N | | CATCHMENT_ORDER | Order of catchment | | N | N | | CATCHMENT_AREA_SQKM | Area of catchment in square kilometers | | N | N | | PRIMARY_CATCHMENT | Primary water catchment | | N | N | | SECONDARY_CATCHMENT | Secondary water catchment | | N | N | | TERTIARY_CATCHMENT | Tertiary Catchment | | N | N | | COMMENTS | Additional comments about the data | | N | N | | COMMONLY_USED_WITH | What's commonly used with the data | | N | N | | GEOMETRY | | | N | N |
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