You are free to:
Share—copy and redistibute the material in any medium format
Adapt—remix, transform, and build upon material
The licensor cannot revoke these freedoms as long as you follow the license terms.
Under the following terms:
Attribution—You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
Non Commercial—You may not use the material for commercial purposes.
No additional restrictions—You may not apply legal terms or technological measures that legally restrict others from doing anything the license permits.
You do not have to comply with the license for elements of the material in the public domain or where your use is permitted by an applicable exception or limitation.
No warranties are given. The license may not give you all of the permissions necessary for your intended use. For example, other rights such as publicity, privacy, or moral rights may limit how you use the material.
In the licensing terms, DigitalGlobe has a stated exception for OpenStreetMap. OSM is allowed to use imagery released under the Open Data Program. Even though OSM enables commercial usage, OSM is a critical platform for the disaster response community. Allowing usage of our imagery in OSM will enable faster data access by local communities as well as global relief efforts.