<DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>A national model was used to estimate depth to hydrogeological basement. </SPAN><SPAN><SPAN>Hydrogeological basement refers to geological material with primary porosity and permeability that is low enough such that fluid volumes and flow rates can be considered negligible. More loosely, depth to hydrogeological basement can be described as depth to ‘the base of an aquifer’. </SPAN></SPAN><SPAN><SPAN>Depth classes were defined to present the dataset in a manner that captures the inherent uncertainty of the dataset. </SPAN></SPAN></P><TABLE><TBODY><TR><TD><P STYLE="text-align:Justify;font-weight:bold;margin:15 0 0 0;"><SPAN><SPAN>Depth class</SPAN></SPAN></P></TD><TD><P STYLE="text-align:Justify;font-weight:bold;margin:15 0 0 0;"><SPAN><SPAN>Depth Range (mBGL)</SPAN></SPAN></P></TD></TR><TR><TD><P STYLE="text-align:Justify;margin:15 0 0 0;"><SPAN><SPAN>1</SPAN></SPAN></P></TD><TD><P STYLE="text-align:Justify;margin:15 0 0 0;"><SPAN><SPAN>0 – 1</SPAN></SPAN></P></TD></TR><TR><TD><P STYLE="text-align:Justify;margin:15 0 0 0;"><SPAN><SPAN>2</SPAN></SPAN></P></TD><TD><P STYLE="text-align:Justify;margin:15 0 0 0;"><SPAN><SPAN>1 – 10</SPAN></SPAN></P></TD></TR><TR><TD><P STYLE="text-align:Justify;margin:15 0 0 0;"><SPAN><SPAN>3</SPAN></SPAN></P></TD><TD><P STYLE="text-align:Justify;margin:15 0 0 0;"><SPAN><SPAN>10 – 20</SPAN></SPAN></P></TD></TR><TR><TD><P STYLE="text-align:Justify;margin:15 0 0 0;"><SPAN><SPAN>4</SPAN></SPAN></P></TD><TD><P STYLE="text-align:Justify;margin:15 0 0 0;"><SPAN><SPAN>20 – 50 </SPAN></SPAN></P></TD></TR><TR><TD><P STYLE="text-align:Justify;margin:15 0 0 0;"><SPAN><SPAN>5</SPAN></SPAN></P></TD><TD><P STYLE="text-align:Justify;margin:15 0 0 0;"><SPAN><SPAN>50 – 100 </SPAN></SPAN></P></TD></TR><TR><TD><P STYLE="text-align:Justify;margin:15 0 0 0;"><SPAN><SPAN>6</SPAN></SPAN></P></TD><TD><P STYLE="text-align:Justify;margin:15 0 0 0;"><SPAN><SPAN>100 – 200 </SPAN></SPAN></P></TD></TR><TR><TD><P STYLE="text-align:Justify;margin:15 0 0 0;"><SPAN><SPAN>7</SPAN></SPAN></P></TD><TD><P STYLE="text-align:Justify;margin:15 0 0 0;"><SPAN><SPAN>> 200</SPAN></SPAN></P></TD></TR></TBODY></TABLE><P><SPAN /></P><P><SPAN>Where reference to the data is to be included in a reference list the following citation is suggested: </SPAN><SPAN STYLE="font-size:12pt"><SPAN>Westerhoff RS, Tschritter C, Rawlinson ZJ. 2019. New Zealand Groundwater Atlas: depth to hydrogeological basement. Lower Hutt (NZ): GNS Science. 19 p. Consultancy Report 2019/140.</SPAN></SPAN></P></DIV></DIV></DIV>
Purpose
Classification of national-scale estimated depth to hydrogeological basement: 0=Surficial, 7=Very deep.
Point Of Contact
Responsible Party
Individual Name
Rogier Westerhoff
Organisation Name
Empty
Position Name
Empty
Resource Constraints
Legal Constraints
Use Limitation
These data have been developed for the purpose of national-scale assessments. While all care and diligence has been used in processing, analysing and extracting data and information for this publication, the Ministry for the Environment and the Institute of Geological and Nuclear Sciences Limited (GNS Science) give no warranty in relation to these data - including its accuracy, reliability and suitability - and accept no liability whatsoever in relation to any loss, damage, or other costs relating to the use of any part of these data or any compilations, derivative works, or modifications of these data.
Resource Constraints
Constraints
Use Limitation
<DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>Where reference to the data is to be included in a reference list the following citation is suggested: </SPAN><SPAN STYLE="font-size:12pt"><SPAN>Westerhoff RS, Tschritter C, Rawlinson ZJ. 2019. New Zealand Groundwater Atlas: depth to hydrogeological basement. Lower Hutt (NZ): GNS Science. 19 p. Consultancy Report 2019/140.</SPAN></SPAN></P></DIV></DIV></DIV>
Language
eng
Topic Category Code
geoscientificInformation
Topic Category Code
environment
Version 6.2 (Build 9200) ; Esri ArcGIS 10.5.1.7333
Content Info
Coverage Description
Band_1
Real
4
Real
1
Integer
8
Distribution Info
Distribution
Distributor
Distributor
Distributor Contact
Responsible Party
Individual Name
Rogier Westerhoff
Organisation Name
Empty
Position Name
Empty
Data Quality Info
DQ _ Data Quality
Lineage
LI _ Lineage
Statement
Final dataset supplied to Ministry for the Environment by GNS Science in October 2019.
Metadata Constraints
Legal Constraints
Use Limitation
These data have been developed for the purpose of national-scale assessments. While all care and diligence has been used in processing, analysing and extracting data and information for this publication, the Ministry for the Environment and the Institute of Geological and Nuclear Sciences Limited (GNS Science) give no warranty in relation to these data - including its accuracy, reliability and suitability - and accept no liability whatsoever in relation to any loss, damage, or other costs relating to the use of any part of these data or any compilations, derivative works, or modifications of these data.
Metadata Constraints
Constraints
Use Limitation
<DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>Where reference to the data is to be included in a reference list the following citation is suggested: </SPAN><SPAN STYLE="font-size:12pt"><SPAN>Westerhoff RS, Tschritter C, Rawlinson ZJ. 2019. New Zealand Groundwater Atlas: depth to hydrogeological basement. Lower Hutt (NZ): GNS Science. 19 p. Consultancy Report 2019/140.</SPAN></SPAN></P></DIV></DIV></DIV>