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Urban Borehole Database

The Urban Borehole Database (UBHDB) is a digital compilation of borehole records utilised in urban mapping, 3D geological modelling, and ground shaking studies by GNS Science. This database primarily utilises borehole records from the New Zealand Geotechnical Database (NZGD, www.nzgd.org.nz) and other records provided to GNS Science from engineering consulting companies as well as local government records. The UBHDB is a relational database and contains nine tables; eight down-hole data tables linked to a borehole location / collar table. Down-hole data includes: lithology (descriptions from borehole logs and interpretations of local formation for each down-hole interval), geochronology, shear vein tests, SPT (standard penetration test), structure (structural measurements), survey (borehole orientation), velocity (shear wave velocity), water (static water level measurements). Addition of new data is ongoing and the database is regularly maintained and used for hazard and mapping projects at GNS Science. Data from the NZGD are added to the database in areas of mapping and modelling projects; PDF records from the NZGD are digitised and appended to the database for use in GNS Science research projects.


DOI: https://doi.org/10.21420/XHB0-M968


Cite as:

GNS Science. (2021). Urban Borehole Database [Data set]. GNS Science. https://doi.org/10.21420/XHB0-M968

Simple

Date (Creation)
2015-11-16
Status
On going
Point of contact
Organisation name Individual name Electronic mail address Role

GNS Science

urbanborehole_data@gns.cri.nz

Point of contact
Maintenance and update frequency
As needed
Keywords
  • Borehole

  • Drill hole

  • Geotechnical

  • New Zealand Geotechnical Database

  • Ground water

  • Shear wave velocity

  • Lithology

  • Ground shaking

  • Urban mapping

  • 3D modelling

Classification
Restricted
Use constraints
Restricted
Other constraints

Significant interpretation and data-mining has been applied to publicly available borehole records that constitutes IP for GNS Science.


This database includes confidential borehole records that are not publicly available and that have been provided to GNS Science for research purposes only.


This database cannot be made publicly available without considering these notes.

Denominator
5000
Distance
0.5   0.5 m
Language
English
Topic category
  • Geoscientific information
  • Environment
N
S
E
W
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Begin date
1927-01-07
Distribution format
Name Version

csv

Microsoft Access

PostgreSQL

OnLine resource
Protocol Linkage Name

WWW:LINK-1.0-http--link

Hierarchy level
Dataset
Statement

• Boreholes are downloaded from the NZGD (www.nzgd.org.nz) as PDF files. These are for areas of interest for geological or hazard modelling.


• Data in the PDF are manually digitised (typed out) into an Excel template.


• The Excel template of new data is appended to the master database


• A variety of checking routines are run on data entry or update to check for common errors. For more details see:

Hill MP. 2019. Borehole database for urban geological mapping, southern Auckland area, New Zealand. Lower Hutt (NZ): GNS Science. 34 p. (GNS Science report; 2019/12). doi:10.21420/EZ5W-5K59.

Metadata

File identifier
7bfca038-97e4-4f32-8071-a03847d75cc7 XML
Metadata language
English
Character set
UTF8
Parent identifier

4b61d48a-d44e-4348-8d71-9e58af9ac9ed

Hierarchy level
Dataset
Hierarchy level name

Dataset

Date stamp
2024-06-20T02:45:21.931276Z
Metadata standard name

ISO 19115:2003/19139

Metadata standard version

1.0

Metadata author
Organisation name Individual name Electronic mail address Role

GNS Science

datamanagement@gns.cri.nz

Point of contact
 
 

Overviews

Spatial extent

N
S
E
W
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Keywords


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