Recordset
Search RecordsetQueensland Museum provider for OZCAM
Queensland Museum provider for OZCAM
Queensland Museum collections date back to the 1860s. Many early specimen records contained incomplete or inaccurate spatial information and in such cases, no interpretation of accuracy has been applied herein. When the museum commenced databasing in the mid-1980s, terms were introduced to represent assumed accuracies of collecting information. The terms below are a refinement of disparate lists and have been used for mapping to the Darwin Core field 'coordinateUncertaintyInMeters'. The table below shows how the terms are represented in metres of accuracy and the assumptions made in assigning these values.
Term coordinateUncertainty
InMeters Assumptions
Surveyed (ground control) 1 International Terrestrial Reference Frame is used for ground survey mapping
Google Earth 20 Latitude and longitude taken from Google Earth by positioning cursor over land feature
GPS reading 50 In-field GPS reading, but correct datum is not assumed
Collector's data 500 Generalised - usually legacy data, pre-GPS
Centrepoint of geographic unit 1000 Centroid values used when no other, more accurate method has been recorded, (e.g. "Fraser Island").
Gazetteer 1000 Gazeteer values used when no other, more accurate method has been recorded,(e.g. "Bundaberg, Queensland").
Geographic location given 1000 Gazeteer values used when no other, more accurate method has been recorded, (e.g. "Blue Lake").
Point in Polygon method 10000 Centroid values used when no other, more accurate method has been recorded, (e.g. "Springbrook National Park").
Regional Approximation 10000 Centroid values used when no other, more accurate method has been recorded, (e.g. "Torres Strait").
Level 1 - excellent 20 Adopted CSIRO terminology
Level 2 - good 50 Adopted CSIRO terminology
Level 3 - satisfactory 100 Adopted CSIRO terminology
Level 4 - poor 500 Adopted CSIRO terminology
Level 5 - doubtful 1000 Adopted CSIRO terminology
Geological Map (1:25 000 scale) 25 Accuracy by designation
Topographic Map (1:25 000 scale) 25 Accuracy by designation
Geological Map (1:50 000 scale) 50 Accuracy by designation
Topographic Map (1:50 000 scale) 50 Accuracy by designation
Geological Map (1:100 000 scale) 100 Accuracy by designation
Topographic Map (1:100 000 scale) 100 Accuracy by designation
Geological Map (1:250 000 scale) 250 Accuracy by designation
Topographic Map (1:250 000 scale) 250 Accuracy by designation
Geological Map (1:500 000 scale) 500 Accuracy by designation
Topographic Map (1:500 000 scale) 500 Accuracy by designation
Topographic Map (1:1 000 000 scale) 1000 Accuracy by designation
Map Reading - accurate to 1 minute 1853 Mathematical extrapolation
- Data Corrected
- Data Use
- Raw