Landscape Area Table (LAT)
Filename
slc_v3r2_canada_lat
Description
The Land Area Table (LAT) contains attributes of the polygon, and attributes which apply to the entire landscape represented by that polygon. Area values for the SLC polygons were calculated using the HYDRO coverage. When unioned with the SLC coverage, it provides land, fresh water and ocean water values for each landscape polygon. All values are in hectares.
Contents
| Field | Name | Type | Width | Description |
|---|---|---|---|---|
| 1 | POLY_ID | integer | 7 | SLC Polygon Identifier |
| 2 | LAND_AREA | integer | 8 | Area of land (applicable to the component table) |
| 3 | WATER_AREA | integer | 8 | Area of Total Water (Fresh and Ocean) |
| 4 | FRESH_AREA | integer | 8 | Area of Fresh Water |
| 5 | OCEAN_AREA | integer | 8 | Area of Ocean Water shown on the HYDRO coverage |
| 6 | TOTAL_AREA | integer | 8 | Area of the entire polygon |
Relationships
- A record in this file is unique with respect to POLY_ID.
- The POLY_ID field is used to relate to the PAT.
Origin
The Land Area Table was developed to simplify the calculation of land and water areas for the SLC polygons, and remove ambiguities in the way water was represented in previous versions. This table was derived from the SLC and HYDRO coverages.