Abstract: The present system of evaluating upper winds by means of radar/radio tracking of pilot and radiosonde balloons is in its most general form to be considered as an overdetermined observation system. The redundancy of information ...

Abstract: The position of a pilot balloon or any other airborne target which is followed by two theodolites is usually computed by means of the known baselength (i.e., the distance between the two theodolite stations) and three ...

Abstract: The evaluation of upper-level wind data by means of balloon-tracking methods involves a number of determinative and random errors. These errors depend on the precision in locating the points of the balloon track, which in ...