Lineage Description |
Position Accuracy:
Data constructed from a 10m grid and positional accuracy to 1:25 000 scale. Data created by modelling process identifying source and runout paths. Reasonable attempts were made to assemble information relevant to land stability and to ensure it was quality controlled. However, it is recognised that much more information exists in council records that could not be easily retrieved. The hazard identification technique is underpinned by available factual data but the limited number of ground control points necessitates use of modelling techniques to predict ground conditions beyond these areas. Models however, are approximations to reality based on data and assumptions that will in the course of time change as new information, ideas and techniques become available. All reasonable care was taken to produce the maps (including limited field checking), but qualified people undertaking subsequent risk analysis should critically examine the information portrayed. Various forms of depicted ground control points (e.g. regolith observations on the debris-flow map, structural measurements on the geology map) serve to provide an indication of where data has been observed versus where it is was inferred.
Attribute Accuracy:
Hazard zones defined by simplistic catagorical attributes. A full explanation of the fields and attributes is provided with the accompanying data dictionary.
Logical Consistency:
The data has been visually checked against topographic maps to ensure accuracy.
Completeness:
The data is complete according to the modelling process.
Additional:
Paper maps showing hazard zones can be obtained from MRT. |
