1.
Science
; 159(3812): 274-80, 1968 Jan 19.
Artigo
em Inglês
| MEDLINE
| ID: mdl-5634490
Assuntos
Comportamento Animal , Aves , Orientação , Radar , Aeronaves , Animais , Columbidae , Probabilidade
2.
3.
Science
; 153(3740): 1110-2, 1966 Sep 02.
Artigo
em Inglês
| MEDLINE
| ID: mdl-17737591
RESUMO
The tropopause has been detected by ultrasensitive, narrow-beam, microwave (10.7-centimeter) and ultrahigh-frequency (71.5-cm) radars. Its reflectivity is consistent with that expected theoretically for a refractively turbulent medium. Indications are that the layer is also mechanically turbulent, and that electromagnetic scatter techniques may be used to detect high-altitude clear-air turbulence.