Canterbury Earthquake Geodetic Marks (2010, 2011) - Comprehensive

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Creative Commons Attribution 4.0 International

You may use this work for commercial purposes.

You must attribute the creator in your own works.

8951
252
Added
26 Apr 2013

This dataset was first added to LINZ Data Service on 26 Apr 2013.

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. This layer contains coordinates computed from GNSS fast static and network RTK surveys undertaken after the Canterbury earthquakes. It also includes Lyttelton Vertical Datum 1937 and Christchurch Drainage Datum heights, derived from the GNSS data.

Users may also be interested in the simplified data in the companion layer Canterbury Earthquake Geodetic Marks (2010, 2011) - Simple.

These coordinates are only provisional. Analysis is ongoing as further data is collected. Coordinates were calculated using SNAP v2.3.61. Stations were constrained using coordinates calculated by GNS Science. Some coordinates were calculated from data provided by Christchurch City Council and other public and private organisations. No precise levelling data has been used.

The uncertainty (one standard deviation) is 0.02m horizontally, and 0.03m vertically for NZGD2000 ellipsoidal heights. The uncertainty (one standard deviation) of the Lyttelton Vertical Datum 1937 and Christchurch Drainage Datum heights is 0.05m.

The coordinates calculated prior to 2010-09-04 have been calculated from a combined adjustment including LINZ data and additional data provided by public and private organisations. These coordinates differ from those in the Geodetic Database and more accurately reflect the position of the mark immediately prior to the 2010-09-04 earthquake.

The deformation model igns2011_working.grd calculated from a model (v4) provided by GNS Science on 28 April 2011 was used to remove secular deformation.

Lyttelton Vertical Datum 1937 heights have been computed from NZGD2000 ellipsoidal heights by subtracting NZGeoid2009 geoid heights and adding an offset of 0.47m to bring in terms of Lyttelton Vertical Datum 1937. Christchurch Drainage Datum (CDD) heights have been computed in the Christchurch area from NZGD2000 ellipsoidal heights by subtracting NZGeoid2009 geoid heights and adding an offset of 0.523m (specifically calculated for Christchurch City) to bring in terms of Lyttelton Vertical Datum 1937 (for Christchurch) and a further offset of 9.04m to bring in terms of CDD.

The model used to estimate whether movements greater than 2cm occurred at a mark (excluding those due to liquefaction or other localised deformation) after the 2010-09-04 earthquake was provided by GNS Science (Darfield_Sep2010_model_8.5_grid_displacements_calcs.xls). The model used to estimate whether movements greater than 2cm occurred at a mark (excluding those due to liquefaction or other localised deformation) after the 2011-02-22 earthquake was provided by GNS Science (Chch_Feb2011_geodetic_source_model_3.21.xls). The model used to estimate whether movements greater than 2cm occurred at a mark (excluding those due to liquefaction or other localised deformation) after the 2011-06-13 earthquake was provided by GNS Science (Chch_Jun2011_geodetic_source_model_0.4.xls). The model used to estimate whether movements greater than 2cm occurred at a mark (excluding those due to liquefaction or other localised deformation) after the 2011-12-23 earthquake was provided by GNS Science (Chch_Dec2011_geodetic_source_model_0.2.xls).

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

For full information about this dataset, see the Canterbury earthquake information on the LINZ website.

Layer ID 51588
Data type Vector point
Feature count 818
Primary key nod_id
Services Vector Query API, Web Feature Service (WFS), Catalog Service (CS-W), data.govt.nz Atom Feed

NZ Title Parcel Association List

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Creative Commons Attribution 4.0 International

You may use this work for commercial purposes.

You must attribute the creator in your own works.

14707
2402
Updated
24 Jan 2020

This dataset was last updated on LINZ Data Service on 24 Jan 2020.

This table is used to associate live and part-cancelled Records of Titles to current spatial parcels. There is a many to many relationship between titles and parcels.

This table can be used to link NZ Property Titles List, NZ Property Title Estates List, or NZ Property Title Owners List to spatial parcel layers such as NZ Parcels, NZ Linear Parcels or NZ Primary Parcels

.

The match between live/part-cancelled titles and current parcels is more than 99%.

Note: The originating data for parcel/title associations includes some non-official sources where the official data does not support a link. If you find an link that has a source of 'External' that you believe to be incorrect, please contact us.

For more information about the nature of this association data see the LINZ website.

For more information about this table, other property datasets, and how to relate them to each other, refer to the Property Boundary and Ownership Data Dictionary.

Table ID 51569
Data type Table
Row count 2706194
Primary key id
Services Web Feature Service (WFS), Catalog Service (CS-W), data.govt.nz Atom Feed

NZ Parcel Statutory Actions List

Licence

Creative Commons Attribution 4.0 International

You may use this work for commercial purposes.

You must attribute the creator in your own works.

7064
865
Updated
24 Jan 2020

This dataset was last updated on LINZ Data Service on 24 Jan 2020.

A Statutory Action is an action recorded against a parcel that is authorised by a specific Part or Section of an Act.

This table provides information about the current and historic statutory actions as recorded against specific parcels.

Note: Historic actions are only available in this dataset since the beginning of Landonline operations (about 2000). This page on LINZ's historic property databases provides actual dates when Landonline operations started.

This table has direct relationships with and can be linked to spatial parcel layers such as NZ Parcels, NZ Linear Parcels or NZ Primary Parcels.

For more information about this table, other property datasets, and how to relate them to each other, refer to the Property Boundary and Ownership Data Dictionary.

Table ID 51565
Data type Table
Row count 294943
Primary key id
Services Web Feature Service (WFS), Catalog Service (CS-W), data.govt.nz Atom Feed
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