20220309
09444200
1.0
XTools Pro Metadata
FALSE
Contour_20m_Simple
002
1860640.000000
1918240.000000
5724240.000000
5800560.000000
1
Projected
GCS_NZGD_2000
Linear Unit: Meter (1.000000)
NZGD_2000_New_Zealand_Transverse_Mercator
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20220510
10133500
20220510
10133500
150000000
5000
ItemDescription
Version 6.2 (Build 9200) ; Esri ArcGIS 10.8.0.12790
Contour_20m_Simple
1
175.964515
176.652782
-37.886878
-38.592091
AAM has collected and processed aerial photography for BOPLASS Ltd over the wider Bay of Plenty, flown over two periods (3 March - 26 April 2016 and 18 October – 18 April 2017). This 2016/2017 data supply contains contours generated by photogrammetric methods in areas of change detected in comparison to 2011 data (supplied by NZ Aerial Mapping).
The data has been supplied in terms of NZTM map projection and Moturiki 1953 vertical datum.
Contours
Height
Elevation
Topography
<DIV STYLE="text-align:Left;"><DIV><P><SPAN>The original (2011) contours were generated by NZ Aerial Mapping using interpolation from a TIN formed using a ground classified LiDAR point cloud dataset. The data was in ESRI 3D shape polyline file format and the features were attributed with the fields ELEVATION [m above Vertical Datum] and DATUM [Moturiki 1953], with further fields added for moduli.</SPAN></P><P><SPAN>The 2016/2017 data supply from AAM was generated photogrammetrically for areas where change was detected from the earlier data; it had the same attribution, but further fields were added for SOURCE, DATE (of supply), dateStart and dateEnd.</SPAN></P><P><SPAN>New contours replacing 2011 contours are tagged with a new dateStart value; the deprecated 2011 contours are tagged with the relevant dateEnd value - included in the parent dataset but excluded from this dataset.</SPAN></P><P><SPAN>NOTE: This dataset has also been simplified from the original 1m dataset using Douglas 01 interpolation.</SPAN></P></DIV></DIV>
Feature Class
dataset
EPSG
7.9.4(9.0.0)
0
Simple
FALSE
0
TRUE
FALSE
Contour_20m_Simple
Feature Class
0
OBJECTID
OBJECTID
OID
4
10
0
Internal feature number.
Esri
Sequential unique whole numbers that are automatically generated.
SHAPE
Shape
Geometry
4
0
0
Feature geometry.
Esri
Coordinates defining the features.
ELEVATION
ELEVATION
Integer
4
10
0
DATUM
DATUM
String
13
0
0
SOURCE
SOURCE
String
20
0
0
DATE
DATE
String
10
0
0
Shape.STLength()
Shape.STLength()
Double
0
0
0
20220510