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Bluff 1955 to NZGD2000 Conversion

The BLF55-NZGD2000 grid enables the conversion of normal-orthometric heights from the Bluff 1955 local vertical datum directly to New Zealand Geodetic Datum 2000 (NZGD2000) ellipsoidal heights.


BLF55-NZGD2000 is published on a one arc-minute grid (approximately 1.8 kilometres) extending over the benchmarks that nominally define the extent of the Bluff 1955 vertical datum (168.2° E to 168.9° E, 46.3° S to 46.8° S).


The conversion value is represented by the attribute “delta”, in metres.


This grid is a combination of New Zealand Quasigeoid 2016 [NZGeoid2016]( https://data.linz.govt.nz/layer/3418 ) and the [BLF55-NZVD2016]( https://data.linz.govt.nz/layer/3424 ) height conversion grid. Where NZGeoid2016 is the reference surface for the New Zealand Vertical Datum 2016 (NZVD2016), while the BLF55-NZVD2016 grid models the difference between the Bluff 1955 vertical datum and NZVD2016 using the LINZ GPS-levelling marks.


More information on converting heights between vertical datums can be found [on the LINZ website]( http://www.linz.govt.nz/data/geodetic-services/coordinate-conversion/converting-between-nzvd2016-nzgd2000-and-local-vertical-datums ).

Simple

Identification info

Alternate title

BLF55-NZGD2000

Date (Creation)
2016-06-27
Date (Publication)
2016-06-27
Date (Revision)
2016-06-27
Purpose

The BLF55-NZGD2000 grid enables the conversion of normal-orthometric heights from the Bluff 1955 local vertical datum directly to New Zealand Geodetic Datum 2000 (NZGD2000) ellipsoidal heights.

Status
Completed
Point of contact
Role Organisation Electronic mail address
Point of contact

Toitū Te Whenua Land Information New Zealand

customersupport@linz.govt.nz

Spatial representation type
Grid

Spatial resolution

Spatial resolution
0.016666666 deg
Topic category
  • Location

Extent

N
S
E
W


Maintenance and update frequency
Unknown
Date
2016
Date type
update

Resource format

Title

*.xml

Date
Edition

Unknown

ANZLIC Jurisdictions
  • New Zealand

ANZLIC Search Words
  • LAND-Geodesy

  • LAND-Cadastre

  • LAND-Topography

Resource constraints

Classification
Unclassified

Resource constraints

Use limitation

Copyright Crown copyright (c)


Toitū Te Whenua Land Information New Zealand and the New Zealand Government.


All rights reserved

Use constraints
Copyright

Resource constraints

Use limitation

Released under Creative Commons Attribution 4.0 International with:


Following Disclaimers:

1. This data is made available through the LINZ Data Service and is based on LINZ's New Zealand Vertical Datum 2016 (NZVD2016)


Following Attribution:

If you publish, distribute or otherwise disseminate this work to the public without adapting it, the following attribution to Toitū Te Whenua Land Information New Zealand should be used.'CC BY 4.0 Toitū Te Whenua Land Information New Zealand'


If you adapt this work in any way or include it in a collection, and publish, distribute or otherwise disseminate that adaptation or collection to the public, the following attribution to Toitū Te Whenua Land Information New Zealand should be used.'Contains data sourced from the LINZ Data Service and licensed for reuse under CC BY 4.0.'


If 'attribution stacking' problems exist then the requirement to display the above attribution statements is waived and in lieu the attribution statement is to be made in any terms or conditions associated with the work/product/application/ etc.

Use constraints
License
Language
English
Character encoding
UTF8

Distribution Information

OnLine resource

https://data.linz.govt.nz/layer/53423-bluff-1955-to-nzgd2000-conversion/

Resource lineage

Statement

**BLF55-NZGD2000 Version 20160627**


This grid is a combination of New Zealand Quasigeoid 2016 [NZGeoid2016]( https://data.linz.govt.nz/layer/3418 ) and the [BLF55-NZVD2016]( https://data.linz.govt.nz/layer/3424 ) height conversion grid.


BLF55-NZGD2000 is published on a one arc-minute grid (approximately 1.8 kilometres) extending over the benchmarks that nominally define the extent of the Bluff 1955 vertical datum (168.2° E to 168.9° E, 46.3° S to 46.8° S).


The conversion value is represented by the attribute “delta”, in metres.

Hierarchy level
Dataset
Other

dataset

Reference System Information

Reference system identifier
4167

Metadata constraints

Classification
Unclassified

Metadata constraints

Use limitation

Copyrigh Crown copyright (c)


Toitū Te Whenua Land Information New Zealand and the New Zealand Government.


All rights reserved

Use constraints
Copyright

Metadata constraints

Use limitation

Released under Creative Commons Attribution 4.0 International with:


Following Disclaimers:

1. This data is made available through the LINZ Data Service and is based on LINZ's New Zealand Vertical Datum 2016 (NZVD2016)


Following Attribution:

If you publish, distribute or otherwise disseminate this work to the public without adapting it, the following attribution to Toitū Te Whenua Land Information New Zealand should be used.'CC BY 4.0 Toitū Te Whenua Land Information New Zealand'


If you adapt this work in any way or include it in a collection, and publish, distribute or otherwise disseminate that adaptation or collection to the public, the following attribution to Toitū Te Whenua Land Information New Zealand should be used.'Contains data sourced from the LINZ Data Service and licensed for reuse under CC BY 4.0.'


If 'attribution stacking' problems exist then the requirement to display the above attribution statements is waived and in lieu the attribution statement is to be made in any terms or conditions associated with the work/product/application/ etc.

Use constraints
License

Metadata

Metadata identifier
84a942af-5fc0-f26d-90d2-b0a979fad233

Language
English
Character encoding
UTF8
Contact
Role Organisation Electronic mail address
Author

Toitū Te Whenua Land Information New Zealand

customersupport@linz.govt.nz

Type of resource

Resource type
Dataset
Name

dataset

Date info (Revision)
2016-07-26

Metadata standard

Title

ANZLIC Metadata Profile: An Australian/New Zealand Profile of AS/NZS ISO 19115:2005, Geographic information - Metadata

Edition

1.1

 
 

Spatial extent

N
S
E
W


Keywords

ANZLIC Jurisdictions
New Zealand
ANZLIC Search Words
LAND-Cadastre LAND-Geodesy LAND-Topography

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Access to the catalogue
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