This folder contains the specification of metadata that will be used for Open Imagery Network and OpenAerialMap.
A metadata file is required for each "image" file. An image file is an RGB GeoTIFF.
Below is a table of metadata values and where they would be required:
| Element | Type | Sample Value | Description | OIN | OAM | Apply to TMS? |
|---|---|---|---|---|---|---|
| UUID | URI | http://bucket/file.tif | Unique URI to file | Auto | Auto | Yes |
| Title | string | San Diego 2015 orthomosaic | Human friendly title of the image | Optional | Optional | Yes |
| Projection | string | EPSG:4326 | CRS of the datasource in EPSG format | Yes | Yes | Yes |
| BBox | string | -180,-90,180,90 | Pair of min and max coordinates in CRS units, (min_x, min_y, max_x, max_y) | Yes? | Yes | Yes |
| Footprint | string (WKT) | POLYGON((-180 -90, -180 90, 180 90, 180 -90, -180 -90)) | Datasource footprint. WKT format, describing the actual footprint of the imagery | Yes? | Yes | Yes |
| GSD | double | 0.35 | Average ground spatial distance (resolution) of the datasource imagery, expressed in meters | Yes | Yes | Yes |
| File size | double | 1024 | File size on disk in bytes | Yes? | Yes | No |
| License | string | Nextview | Usage license of the datasource. This determines visibility of the datasource for authenticated users | No | Yes | Yes |
| Sense Start | Date | 2015-05-03T13:00:00.000 | First date of acquisition in UTC (Combined date and time representation) | Yes | Yes | |
| Sense End | Date | 2015-05-04T13:00:00.000 | Last date of acquisition in UTC (Combined date and time representation) | Yes | Yes | |
| Platform | string | Satellite | List of possible platform sources limited to satellite, aircraft, UAV, balloon, kite | Yes | Yes | |
| Sensor | string | WV-3 | How the data was collected? (image aquisition device... camera, radar, ...) | Optional | Yes | |
| Tags | string | #nepal_earthquake_2015 | Any user provided tag | No | Optional | Yes |
| Provider | string | Digital Globe | Provider/owner of the OIN bucket | No | Yes | Yes |
| Contact Email | string | contact@email.com | Name and email address of the data provider | Yes | Yes | Yes |