platform_speed_wrt_air
https://w3id.org/hacid/data/cs/variables/cf/platform_speed_wrt_air <https://w3id.org/hacid/onto/data/Variable>
Speed is the magnitude of velocity. The abbreviation "wrt" means with respect to. The platform speed with respect to air is often called the "air speed" of the platform. A "platform" is a structure or vehicle that serves as a base for mounting sensors. Platforms include, but are not limited to, satellites, aeroplanes, ships, buoys, instruments, ground stations, and masts.
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platform_speed_wrt_air