National Environmental Standards (NES) Airsheds - GIS Layer

File ID:	295D5F66-83EC-48FA-9526-442FBC47711F
Hierarchy Level:	dataset
Abstract:	Waikato Region Airsheds are areas gazetted pursuant to the Resource Management (National Environmental Standards Relating to Certain Air Pollutants, Dioxins and Other Toxics) Regulations 2004. This is an MFE requirement and identifies areas for the purpose of air quality management. Survey Office (SO) plans of each area have been registered with LINZ.
Statement:	There are 20 NES Airsheds in the Waikato Regional Council region generally following cadastral parcel or natural boundaries in the following areas: Cambridge, Hamilton, Huntly, Matamata, Morrinsville, Ngaruawahia, Otorohanga, Paeroa, Putaruru, Taupo, Te Aroha, Te Awamutu, Te Kuiti, Thames, Tokoroa, Tuakau, Turangi, Waihi, Whangamata and Whitianga. The remaining area of the Waikato Region is also defined as an airshed, however a map is not required to be gazetted for this “Rest of Region” airshed.
Keywords:	Air,Management,Pollution,Quality
Topic Category:	environment:environmental resources, protection and conservation
Resource Reference Date:	17/01/2008
Metadata URL:	https://data.waikatoregion.govt.nz:8443/ords/f?p=140:12:0::NO::P12_METADATA_ID:1050

Responsible Parties

Role:	author
Position:
Organisation:	Waikato Regional Council
Delivery Point:	160 Ward Street
City:	Hamilton Central
Postal Code:	3204
Country:	New Zealand
Phone:
Fax:
Email:

Metadata

Language:	English
Character Set:	utf8
Standard:	ANZLIC
Standard Version:	1.1

Metadata Constraints

Access Constraints:	copyright
Use Constraints:	copyright

Download Links

URL	Format	Notes

Supporting Information Links

URL	Format	Notes

General Notes: www.waikatoregion.govt.nz/Environment/Environmental-information/Environmental-indicators/Air/Air-quality/ http://www.mfe.govt.nz/laws/standards/index.html http://www.waikatoregion.govt.nz/enviroinfo/air/airregionmap.htm

ENVIRONMENTAL_MONITORING.sdeadmin.NES_EW_AIRSHED

File Identifier:	26672DE4-A3D2-4B89-9118-FA3563B06FAE	Parent Identifier:	947874F7-5148-4A8B-81D3-70AF6DA7F718
Hierarchy Level:	feature	Hierarchy Level Name:	feature of National Environmental Standards (NES) Airsheds - GIS Layer
Abstract:	Waikato Region Airsheds are areas gazetted pursuant to the Resource Management (National Environmental Standards Relating to Certain Air Pollutants, Dioxins and Other Toxics) Regulations 2004.
Statement:	Waikato Regional Council will use the maps for air quality management. Industry and other stakeholders will use the maps for identifying site positions with respect to airshed boundaries. MfE will use the maps when identifying airsheds for national air quality reporting purposes.
Other Information:	Positional accuracy is as per the LINZ specifications for their Core Record System (CRS) parcel boundaries.The Airsheds were defined and refined during 2006. They are final as gazetted and shown on the SO plans until MFE requires changes. Linework follows the LINZ CRS parcel and natural boundaries, so is as accurate as specified in their metadata. There may be ‘shifts’ in the parcel boundaries from time to time. This will affect the positional relativity between the Airsheds and the parcel boundaries. All attributes verified and correct. Airsheds are over specific towns within the Waikato Region. The remaining area of the Waikato Region is also defined as an airshed, however a map is not required to be gazetted for this “Rest of Region” airshed. Data aquisition method(s) are recorded in DOCS #1027945. Logical Consistency: Logical consistency of data is ensured through a two step polygon topology generation process: Parcelisation creates topologically correct network structures by splitting lines at every line intersection; generating a system node at every intersection and correcting overshot or undershot digitised lines. Polygon Formation where topological relationships between boundary segments and centroids are formed. Several factors must apply before topology can be created. Each defined polygon must contain a centroid. A system node must exist at the intersection point of two or more line features, i.e. parcelisation completed. All boundary line features of a polygon and the centroid must be defined as being in the same network. The boundary line feature must connect end to end, such that no 'holes' exist in the polygon boundary. Two line features cannot leave or enter a system node exactly at the same angle; ie. There can be no duplicate features. Errors in topological structuring are reported and the process is cycled through until a clean topological structure is generated ensuring logical consistency of data. Data Form: Spatial Digital Data. Data is stored in WRC’s Oracle Spatial database. Digital Format: The data is stored in WRC’s Oracle Spatial Database and can be accessed using Geomedia, or other tools. Applications: Waikato Regional Council will use the maps for air quality management. Industry and other stakeholders will use the maps for identifying site positions with respect to airshed boundaries. MfE will use the maps when identifying airsheds for national air quality reporting purposes. Data Status: Complete at time of LINZ Gazettal – November 2006.
Keywords:	Air,Management,Monitoring,Pollution,Quality
Topic Category:	environment:environmental resources, protection and conservation
Resource Reference Date:	17/01/2008

Metadata Constraints

Access Constraints:	copyright
Use Constraints:	copyright

Maintenance Information

Maintenance frequency:	notPlanned
Last Load Date:	01/11/2006

Spatial Representation Information

Recommended Scale:
Reference System:	EPSG2193
Spatial Representation Type:	vector

Vector

Grid

Geographic Bounding Box

GeometricObjectType :	surface
geometricObjectCount :	20
topologyLevel :	geometryOnly

Number of Dimensions :
Cell Geometry :
Transformation Param Available :	N

westBoundLongitude :	1871626.17
eastBoundLongitude :	1771289.98
southBoundLatitude :	5679132.71
northBoundLatitude :	5922950.69

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 :	copyright
Data Use Constraints:	copyright
Data Distribution:	Unrestricted
Licence Type :	To be determined
Licence:
Licence Expiry:
Licence Conditions:
Copyright :	© Waikato Regional Council 2006. National Environmental Standards (NES) Airsheds - GIS Layer Data.
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

Attribute Information

Name	Description	Restricted	Primary Key
AIRSHED_NAME	Name of airshed area	N	N
GEOMETRY		N	N
SO_NUMBER		N	N
CATEGORY	Category - '1' or '2'	N	N
SO_APPROVAL_DOC		N	N
PDF_DOC		N	N
ID	Unique Identifer	N	Y