Canterbury Earthquake Precise-Levelling Heights (2010, 2011)

National Geodetic Office
Licence

Creative Commons Attribution 4.0 International

You may use this work for commercial purposes.

You must attribute the creator in your own works.

20691
121
Updated
04 Sep 2014

This dataset was last updated on LINZ Data Service on 04 Sep 2014.

ISO 19115/19139 Metadata XML PDF

Metadata
File Identifier

47a38892-b029-615b-c8ad-b4ef2accdfa8

Language

eng

Character Set
Character Set Code

utf8

Hierarchy Level
Scope Code

dataset

Hierarchy Level Name

dataset

Contact
Responsible Party
Individual Name

omit

Organisation Name

LINZ - Land Information New Zealand

Position Name

Chief Geodesist - National Geodetic Office

Contact Info
Contact
Phone
Telephone
Voice

04 4600110

Address
Address
Delivery Point

155 The Terrace

City

Wellington

Postal Code

6011

Country

New Zealand

Electronic Mail Address

info@linz.govt.nz

Role
Role Code

resourceProvider

Date Stamp
Date

2013-06-25

Metadata Standard Name

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

Metadata Standard Version

1.1

Reference System Info
Reference System
Reference System Identifier
Identifier
Code

2193

Identification Info
Data Identification
Citation
Citation
Title

Canterbury Earthquake Precise-Levelling Heights (2010, 2011)

Date
Date
Abstract

The Canterbury region of New Zealand experienced a sequence of significant earthquakes during 2010 and 2011. These earthquakes occurred on 2010-09-04, 2011-02-22, 2011-06-13 and 2011-12-23. Precise-levelling surveys have been carried out throughout Canterbury and Christchurch to re-establish heights after these earthquakes.

**Users may also be interested in the horizontal coordinates derived from GNSS data in the companion layers [Canterbury Earthquake Geodetic Marks (2010, 2011) - Comprehensive](http://data.linz.govt.nz/layer/1588) and [Canterbury Earthquake Geodetic Marks (2010, 2011) - Simple](http://data.linz.govt.nz/layer/1589)**

Horizontal Accuracy (standard deviation) approx 1m.
Vertical Accuracy of Lyttelton Vertical Datum 1937 heights (standard deviation) 0.005m.

Heights generated from precise levelling data undertaken to a misclose standard (mm) of 5*sqrt(k) where k is the distance in kilometres. Precise levelling in the Christchurch area was undertaken after the 23 December 2011 earthquake. Other areas were levelled after the most recent earthquake to have affected heights in that area. Heights therefore represent the position of marks accounting for all four substantial Canterbury earthquakes.

These heights are only provisional. Analysis is ongoing as further data is collected.
Heights calculated using SNAP v2.3.64.
Heights were constrained using the pre-earthquake heights at geodetic codes AC9B, AFAQ, AG32 and B853. GNSS observations and modelling indicates that the height change of these marks was negligible.
Some heights were calculated from precise levelling data provided by Christchurch City Council.

These coordinates are suitable for use in surveys and other geospatial activities in Canterbury and Christchurch.

**For further information about this dataset, see [the Canterbury earthquake information](http://www.linz.govt.nz/survey-titles/canterbury-earthquake/canterbury-earthquake/geodetic-survey-control-coordinates) on the LINZ website.**

Purpose

To support the geospatial reference frame in post-earthquake Canterbury, including Christchurch.

Status
Progress Code

onGoing

Point Of Contact
Responsible Party
Individual Name

omit

Organisation Name

LINZ - Land Information New Zealand

Position Name

Chief Geodesist - National Geodetic Office

Contact Info
Contact
Phone
Telephone
Voice

0800 665 463 or +64 4 460 0110

Facsimile

+64 4 472 2244

Address
Address
Delivery Point

155 The Terrace

City

Wellington

Postal Code

6011

Country

New Zealand

Electronic Mail Address

info@linz.govt.nz

Role
Role Code

pointOfContact

Resource Maintenance
Maintenance Information
Maintenance And Update Frequency
Maintenance Frequency Code

asNeeded

Resource Format
Format
Name

*.xml

Version

Unknown

Descriptive Keywords
Keywords
Keyword

New Zealand

Type
Keyword Type Code

theme

Thesaurus Name
Citation
Title

ANZLIC Jurisdictions

Date
Edition

Version 2.1

Edition Date
Date

2008-10-29

Identifier
Identifier
Code

http://asdd.ga.gov.au/asdd/profileinfo/anzlic-jurisdic.xml#anzlic-jurisdic

Cited Responsible Party
Responsible Party
Organisation Name

ANZLIC the Spatial Information Council

Role
Role Code

custodian

Descriptive Keywords
Keywords
Keyword

LAND-Geodesy

Keyword

HAZARDS-Earthquake

Keyword

LAND-Cadastre

Type
Keyword Type Code

theme

Thesaurus Name
Citation
Title

ANZLIC Search Words

Date
Edition

Version 2.1

Edition Date
Date

2008-05-16

Identifier
Identifier
Code

http://asdd.ga.gov.au/asdd/profileinfo/anzlic-theme.xml#anzlic-theme

Cited Responsible Party
Responsible Party
Organisation Name

ANZLIC the Spatial Information Council

Role
Role Code

custodian

Resource Constraints
Security Constraints
Classification
Classification Code

unclassified

Resource Constraints
Legal Constraints
Use Limitation

Copyright 2013 Crown copyright (c)

Land Information New Zealand and the New Zealand Government.

All rights reserved

Use Constraints
Restriction Code

copyright

Resource Constraints
Legal Constraints
Use Limitation

Released under Creative Commons Attribution 4.0 International with:

Following Attribution:
If you publish, distribute or otherwise disseminate this work to the public without adapting it, the following attribution to Land Information New Zealand should be used.'CC BY 4.0 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 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
Restriction Code

license

Spatial Representation Type Code

textTable

Language

eng

Character Set
Character Set Code

utf8

Topic Category Code

location

Extent
EX _ Extent
Geographic Element
EX _ Geographic Bounding Box
171.23172.55-44.02-42.46
Distribution Info
Distribution
Transfer Options
Digital Transfer Options
On Line
Online Resource
Linkage
URL

https://data.linz.govt.nz/layer/51688-canterbury-earthquake-precise-levelling-heights-2010-2011/

Data Quality Info
DQ _ Data Quality
Scope
DQ _ Scope
Level
Scope Code

dataset

Level Description
Scope Description
Other

dataset

Lineage
LI _ Lineage
Statement

The estimated accuracy is 0.005m vertically.

This data is identical to that contained in the csv file at:

http://www.linz.govt.nz/sites/default/files/survey-titles/cadastral-surveying/canterbury-earthquake/information-surveyors/canterbury_eq_linz_levelled_heights_v1.1.csv

Metadata Constraints
Security Constraints
Classification
Classification Code

unclassified

Metadata Constraints
Legal Constraints
Use Limitation

Copyright 2013 Crown copyright (c)

Land Information New Zealand and the New Zealand Government

Use Constraints
Restriction Code

copyright

Metadata Constraints
Legal Constraints
Use Limitation

Released under Creative Commons Attribution 4.0 International

Use Constraints
Restriction Code

license