 |
| Titel |
VHF volume-imaging radar observation of aspect-sensitive scatterers tilted in mountain waves above a convective boundary layer |
| VerfasserIn |
R. M. Worthington |
| Medientyp |
Artikel
|
| Sprache |
Englisch
|
| ISSN |
0992-7689
|
| Digitales Dokument |
URL |
| Erschienen |
In: Annales Geophysicae ; 23, no. 4 ; Nr. 23, no. 4 (2005-06-03), S.1139-1145 |
| Datensatznummer |
250015209
|
| Publikation (Nr.) |
 copernicus.org/angeo-23-1139-2005.pdf |
|
|
|
|
|
| Zusammenfassung |
| Thin stable atmospheric layers cause VHF radars to receive increased echo
power from near zenith. Layers can be tilted from horizontal, for instance
by gravity waves, and the direction of VHF "glinting" is measurable by
spatial domain interferometry or many-beam Doppler beam swinging (DBS).
This
paper uses the Middle and Upper atmosphere (MU) radar, Shigaraki, Japan as
a volume-imaging radar with 64-beam DBS, to show tilting of layers and air
flow in mountain waves.
Tilt of aspect-sensitive echo power from horizontal is nearly
parallel to air flow,
as assumed in earlier measurements of mountain-wave alignment.
Vertical-wind measurements are self-consistent from different
beam zenith angles, despite the combined effects of aspect
sensitivity and horizontal-wind gradients. |
| |
|
| Teil von |
|
|
|
|
|
|
|
|