Feature Type

Feature Type Name

Bench mark

Synonyms

Definition

A location where the elevation above the height datum has been measured.

Comments

Table Name

BENCH_MARK

Australia's Implementation Table Names

  • BENCH_MARK_PT

None entered in defining this feature type

The following have been used in categorising this feature type

  • Map Elements
Code Name Definition   Data type Values UoM Used by these Feature Types
1000 Absolute_Accuracy   Mandatory character(50)     Types
1042 Dataset_Id An unique identifier of the dataset the feature belongs to Mandatory number(4)     Types
1064 Elevation Height of ground level above mean sea level (MSL) Mandatory number(10,2)   metres Types
1113 Latitude Stored in decimal degrees. Mandatory number(20,10)     Types
1118 Longitude Stored in decimal degrees. Mandatory number(20,10)     Types
1124 Method   Mandatory character(50)
label Definition
Airborne altimetric, surface barometric
Altimetric
Astronomical
Barometric The use of an instrument to measure atmospheric pressure.
Differential levelling or trigonometrical
Digitising Convert from a physical product into digital form
Geodetic satellite observation
GPS Global Positioning System
Levelling
Other
Photogrammetric
Trigonometrical Calculations are based on the relationships between the sides and the angles of triangles.
Unknown
  Types
1150 Q_Info An unique identifier pointing to additional data quality information not included in the metadata record. Mandatory number(5)     Types
1157 Relative_Accuracy   Mandatory character(50)     Types
1127 SCAR_Name A placename name in the SCAR Composite Gazetteer of Antarctica. These names have been contributed by national gazetteers. Mandatory character(100)     Types