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Choose Area of Interest

The Area of Interest (AOI) defines the geographical region for which you wish to receive data. ClearSKY offers two distinct ordering types to accommodate different needs: Composite and Tile Ordering. By default in composite ordering, the AOI must be defined as one or multiple bounding boxes, which are accepted without requiring special approval. These bounding boxes are used in the ordering process. If you are interested in different image frequencies for different geometries, we recommend placing multiple orders to fully control the image dates ordered for the different AOIs.

Additionally, if your project demands more detailed geographic definitions, you can submit complex geometries using single Polygons and/or MultiPolygons within a GeometryCollection. When opting for complex geometries, the cost is calculated based on the extent of each geometry’s bounding box. For example:

  • Single Polygons: The extent is calculated separately for each Polygon, which is beneficial for covering diverse areas.
  • MultiPolygons: The extent is calculated based on the combined area of all polygons within each MultiPolygon. This method is advantageous when dealing with multiple small areas in close proximity, as it helps optimize costs by efficiently meeting the minimum billing threshold of 1 km².

Using Single- or MultiPolygons​

Single Polygons:​

When you provide a GeometryCollection with single Polygons, the extent is calculated separately for each Polygon. This can be beneficial for covering diverse areas such as diverse and distributed crop fields.

Example GeometryCollection​

Input Order GeometryCollection:

GEOMETRYCOLLECTION (
    POLYGON ((9.820962 56.768272, 9.820833 56.769754, 9.821777 56.77227, 9.82079 56.772246, 9.818344 56.772505, 9.817357 56.771071, 9.816241 56.771118, 9.815555 56.770788, 9.814911 56.770859, 9.814267 56.768954, 9.820962 56.768272)),
    POLYGON ((9.843192 56.781076, 9.843986 56.78211, 9.840059 56.782957, 9.839609 56.782968, 9.838622 56.782016, 9.83918 56.781852, 9.83948 56.782145, 9.840124 56.782122, 9.841089 56.781758, 9.841282 56.781558, 9.843192 56.781076)),
    POLYGON ((9.847655 56.768742, 9.849114 56.770271, 9.850059 56.771541, 9.845638 56.772858, 9.845209 56.77227, 9.843707 56.769942, 9.847655 56.768742))
)

Actual Order GeometryCollection:

GEOMETRYCOLLECTION (
    POLYGON ((9.814267 56.768272, 9.814267 56.772505, 9.821777 56.772505, 9.821777 56.768272, 9.814267 56.768272)),
    POLYGON ((9.838622 56.781076, 9.838622 56.782968, 9.843986 56.782968, 9.843986 56.781076, 9.838622 56.781076)),
    POLYGON ((9.843707 56.768742, 9.843707 56.772858, 9.850059 56.772858, 9.850059 56.768742, 9.843707 56.768742))
)

The blue polygons shows the input GeometryCollection provided by the user and the red polygons shows the actual order GeometryCollection.

MultiPolygons:​

When you provide MultiPolygons within the GeometryCollection, the extent is calculated based on the combined area of all Polygons in the MultiPolygon. This approach is advantageous if you have multiple small areas in very close proximity, as it helps optimize costs by efficiently meeting the minimum billing threshold of 1 km².

Example GeometryCollection​

Input Order GeometryCollection:

  GEOMETRYCOLLECTION (
    MULTIPOLYGON (
      ((9.820962 56.768272, 9.820833 56.769754, 9.821777 56.77227, 9.82079 56.772246, 9.818344 56.772505, 9.817357 56.771071, 9.816241 56.771118, 9.815555 56.770788, 9.814911 56.770859, 9.814267 56.768954, 9.820962 56.768272)), 
      ((9.843192 56.781076, 9.843986 56.78211, 9.840059 56.782957, 9.839609 56.782968, 9.838622 56.782016, 9.83918 56.781852, 9.83948 56.782145, 9.840124 56.782122, 9.841089 56.781758, 9.841282 56.781558, 9.843192 56.781076)), 
      ((9.847655 56.768742, 9.849114 56.770271, 9.850059 56.771541, 9.845638 56.772858, 9.845209 56.77227, 9.843707 56.769942, 9.847655 56.768742))))

Actual Order GeometryCollection:

  GEOMETRYCOLLECTION(
    POLYGON ((9.814267 56.768272, 9.814267 56.782968, 9.850059 56.782968, 9.850059 56.768272, 9.814267 56.768272)))

The blue polygons shows the input GeometryCollection provided by the user and the red polygons shows the actual order GeometryCollection.

Geometry Limitations for Composite Ordering​

All geometries will be accepted without modification to shape or cost, provided the following conditions are met:

  1. The area must be larger than 1 km².
  2. Each side of the bounding box must be longer than 150 meters.

For more complex geometries in the ordering process, please contact support at [email protected]. All geometries must adhere to EPSG:4326 and will be converted to local UTM EPSG (EPSG:326XX or 327XX) for processing.