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Global Islands
A new 30-m spatial resolution global shoreline vector (GSV) was developed from annual composites of 2014 Landsat satellite imagery. The semi-automated classification of the imagery was accomplished by manual selection of training points representing water and non-water classes along the entire global coastline. Polygon topology was applied to the GSV, and the resulting polygons were mapped into four size classes of islands: Continental Mainlands, Big Islands (greater than 1 km2), Small Islands (less than or equal to 1 km2 and greater than or equal to 0.0036 km2), and Very Small Islands (less than 0.0036 km2).
Complete Metadata
| @id | http://datainventory.doi.gov/id/dataset/fa009ae7b844a26d054b17498977dbfc |
|---|---|
| bureauCode |
[ "010:12" ] |
| identifier | USGS:63bdf25dd34e92aad3cda273 |
| spatial | -180.0,-79.9042,180.0,83.6663 |
| theme |
[ "geospatial" ] |
