great-circle distance

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great-circle distance

[′grāt ¦sər·kəl ′dis·təns]
(geodesy)
The length of the shorter arc of the great circle joining two points.
References in periodicals archive ?
5 mi) using a maximum great circle distance between individual detected very high-frequency (VHF) lightning sources.
1996; Bruning and Thomas 2015), 2) the maximum great circle distance between individual LMA sources (Haversine method) or the maximum great circle distance between individual convex hull vertices (these are mathematically equivalent), and 3) the square root of the convex hull area (or its characteristic length scale).
After discussion, the committee unanimously recommended that for flashes mapped by an LMA, the flash length be computed as the maximum great circle distance between the extreme VHF sources minus the uncertainty in the measurement (twice the standard error, due to subtracting from both ends).
c] of 5, the maximum great circle distance (Haversine method) for the 20 June 2007 (0607:22 UTC) flash between two sources is 323 km minus 2 km (standard error), resulting in 321 km.
Additionally, the committee unanimously recommended that for flashes mapped by an LMA, the flash length be computed as the maximum great circle distance between the extreme VHF sources minus the uncertainty in the measurement (twice the standard error, due to subtracting from both ends).
Linear representation of the Oklahoma flash event for 0607:22 UTC 20 Jun 2007 using the maximum great circle distance method described in the text; the WMO-evaluated "longest distance lightning flash" event.
To assess distance traveled, the great circle distance between cities where sequential games were played was calculated.
The greater the diameter of the circle, the lower the altitude of the star, for as mentioned earlier the great circle distance from observer to Geographical Position in angular units gives the coaltitude (90 |degrees~ -- altitude).