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Database Title |
12.4 Digital Elevation Model/Digital Terrain Model |
|---|---|
| Keywords Type1. Type 11. |
Land, topography, maps |
| Abstract | This is a digital database derived from the 20 m contour lines from the 1:50,000 topographic maps series. |
| Geographical Coverage | New Zealand |
| Dataset start date. | Early 1980s. |
| Dataset end date. | 1999? |
| Status/currency. | Complete |
| Update frequency. | Unknown |
| Maintenance. | Land Information New Zealand |
Technical Evaluation |
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|---|---|
| Parameters- what is measured |
|
| Parameters- what is calculated | N/A |
| Methods used to measure parameters | Information is derived from 1: 50,000 topographic maps. |
| Secondary sources of data | N/A |
| Scale of use. | 1:50,000 |
| Number of records | Unknown |
| GIS compatibility. | Yes |
| Available formats for users. | Digital database |
| Access constraints. | Sold to distributors. To date the high cost of this database has restricted its use to a few users. |
| Measurement Accuracy | To be completed by database manager. |
| Completeness of dataset | To be completed by database manager. |
| Positional accuracy | To be completed by database manager. |
| Database steward | Land Information New Zealand |
| Database custodian | Terralink NZ Ltd |
| Database custodian contact person | Michael Wilson |
| Database custodian Contact Address Phone Fax |
+64 4 471 0380 +64 4 9156050 michael.wilson@terralinkltd.com |
| References | |
| Date metadata record prepared. | October 1999 |
| Author of metadata record. | Victoria Froude |
Management Evaluation |
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|---|---|
| Original purpose. | Defence and emergency purposes |
| Relationships with classification systems. | N/A |
| Relationships with other databases | Derived from the 1:50,000 topographical map database. Used in association with a number of other databases. |
| Known relationships with proposed EPIP indicators. | N/A |
| Who uses this database? |
|
| Public awareness of the database | Low |
| Database strengths. | Comprehensive database |
| Database limitations. | Extremely high cost of purchase (it is intended that this will be reduced in 2002). |
What are the Current and Emerging Uses of the Database for: |
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|---|---|
| Assisting with determining historic state/baseline. | N/A |
| Assisting with determining current state/baseline. | It describes the current altitude, slope and aspect. |
| Assisting with modeling possible future outcomes. | N/A |
| Risk assessment. | It can be used with other databases for this purpose. |
| Monitoring site selection and sample design. | It could be used for this purpose either on its own or in combination with other databases. |
| Aggregating and reporting data locally, regionally or nationally. | N/A |