A "tethered balloon" is a balloon that is tied down to the ground with a rope or cable so that it doesn't float away.
Sentences with «tethered balloon»
Unmanned aerial system and tethered balloon system measurements have supplemented ARM Mobile Facility data to help improve understanding of atmospheric processes in the Arctic. (arm.gov)
Come early to observe a sunrise lift - off, mid-mornings to participate in a complimentary tethered balloon ride - or stay until dusk to experience the amazing evening hot air balloon glow. (tvbwf.com)
Few have attempted to measure the vertical component using tethered balloons and even helicopters. (drtimball.com)