Three-Dimensional Air Trajectories Determined from Tetroon Flights in the Planetary Boundary Layer of the Los Angeles Basin

摘要: Abstract Between 9 September and 2 October 1969, 105 constant-volume balloons (tetroons) were released from various sites in the Los Angeles Basin for purpose of obtaining three-dimensional air trajectories planetary boundary layer Basin. The tetroons, with transponders attached, tracked by an M-33 radar positioned atop Mt. Thom, 5 km north Glendale. In general, tetroons at heights a few hundred meters tended to move slowly westward between midnight sunrise, northward sunrise noon, rapidly eastward noon sunset. Tetroons launched Redondo Beach Long area during day distinctly show convergence zone extending northeastward Palos Verdes Hills due confluence sea breezes west south. near downtown around tend drift toward city center before moving into Pasadena-Glendale area. During oscillate through much ...