I used the NGM model/analysis, which is a low resolution model for the
U.S.
The choice of the model is due to the fact that it is the only one
archived back to 1996 on their site.
Because this model is fairly low resolution, I have only selected a
couple of profiles from each flight.
Trajectories that extend to the west of a north/south line (shown
here) get cut off since the model grid doesn't extend far over the
Pacific Ocean.
Other studies' Pacific Ocean trajectories have been based on the ECMWF
model, which I would like to do in the future.
| Point Conception | Point Sur | Cape Mendocino | Cape Blanco |
| June 19
Flow comes from offshore, moves along the coast. Some trajectories over land. Air descends ~1500 m. 14 16 2 21 22 |
June 2
Flow from sea to land, south, then out to sea. Air at all levels descends ~2500 m. 25 31 37 42 |
June 07
Flow from offshore turn along coast at Cape Blanco, especially at upper levels. Not much descent (but hard to tell). 15 16 17 4 5 9 |
July 1 Flow from offshore becomes alongshore north of Cape Blanco. May be overland. 13 26 9 |
| June 23
Flow from far north, move along/over coast. Descends > 1000 m above BL. 1 13 17 24 25 30 9 |
June 11
Flow from sea to land to sea, descends 1000 m. 15 |
June 12
Flow from offshore over coast then back offshore. Flow descends ~ 2000 m above BL. 1 10 24 29 8 |
|
| June 29
Flow from onshore. Midlevel flow may be from south. Air descends from 5000-7000 m at upper levels! 16 2 23 24 26 42 |
June 17
Flow along the coast starting very far north. Midlevel over-land. 10 21 36 7 |
June 26
Flow from far offshore comes onshore north of Cape Mendocino, or downcoast. Upper level flow along the coast descends ~1500 m. 23 29 32 5 50 |
|
| June 21
Flow along the coast from far north, over land midlevel. Descends ~1000 m above BL. 13 5 6 |
