A great circle track provides the maximum saving in distance on().
A、easterly courses in high latitudes
B、southerly courses in high latitudes
C、westerly courses in low latitudes
D、easterly courses in low latitudes that cross the equator
A、easterly courses in high latitudes
B、southerly courses in high latitudes
C、westerly courses in low latitudes
D、easterly courses in low latitudes that cross the equator
A、Mercator projection B、polyconic projection C、orthographic projection D、gnomonic projection
A、Easily plotted on a Mercator chart B、Negligible increase in distance on east-west courses near the equator C、Does not require constant course changes D、Plots as a straight line on Lambert conformal charts
A、A.loxodromic curve B、B.curved line concave to the equator C、C.straight line D、D.spiral approaching the poles as a limit