UniVisas
A single polygon of the KAZA (Kavango Zambezi) Transfrontier Conservation area (TFCA) representing the Number of Univisas issues to tourists for easier travel between Zambia and Zimbabwe. Data was compiled by the KAZA Monitoring and Evaluation (M&E) technician in 2017 during a meeting with the KAZA Liaison Officers (KLOs). It was stored as a feature class in the KAZA Spatial Database Engine (SDE) in Stellenbosch, South Africa at the PPF head office in 2018.
About this dataset
- Source
- WWF Kenya Sources: GIS Centre of ExcellenceWWF Kenya
- Source layer
- UniVisas (EPSG:4326 (service native); served as EPSG:4326)
- Module / ecosystem
- WATER & CATCHMENTS
- Licence
- To be confirmed with the publisherLicence not stated by the publisher. Atlas holds an archival copy for scientific and internal use. Do not redistribute in bulk without the publisher's permission. Always cite WWF Kenya and the original data owner named in the layer description.
- Coordinate system
- Stored as EPSG:4326 (WGS 84). Source native: 4326
- Records archived
- 5 (matches the source's own count)
How to cite
Feature classes
| Class | Features |
|---|---|
| univisas | 5 |
Measurements recorded
Unit harmonisation applied to this dataset
Every number in Atlas is stored in one canonical unit; the original value and unit are always kept
| Source field | Measure | Source unit | Atlas unit | Factor | Treatment |
|---|---|---|---|---|---|
| Shape_Length | area/length | unknown (often degrees) | — | — | excluded unit not stated; geodesic area/length computed from geometry instead |
| Shape_Area | area/length | unknown (often degrees) | — | — | excluded unit not stated; geodesic area/length computed from geometry instead |
| geometry | area / length | EPSG:4326 degrees | ha / m | — | geodesic area (ha), perimeter (m) and length (km) computed on the WGS 84 ellipsoid with PostGIS |
Attributes stored per feature
How many features carry each attribute (first 20,000)
| Attribute | Features |
|---|---|
| attributes | 5 |
| area_ha_geodesic | 5 |
| perimeter_m | 5 |
Checked against the geometry
Source value ÷ the same quantity computed from the stored shape
Archive & integrity
- Snapshot
- n/a
- Format
- GeoJSON (gzip pages, WGS 84 as served)
- Archive checksum
- 66080033df6de866f83d796b7bda661f9e6d93298d394dafe17e91377436db76
Verification against the raw archive
Import history
| Run | Status | Started | Records | Repaired geometries |
|---|---|---|---|---|
| #642 | completed | 2026-10-13 06:01:57.721803+00 | 5 | 2 |