RESEARCH AIRCRAFT MEASUREMENTS OF JET STREAM GEOSTROPHIC AND AGEOSTROPHIC WINDS.

46Citations
Citations of this article
7Readers
Mendeley users who have this article in their library.
Get full text

Abstract

Radar altimeter and inertial navigation wind velocity measurements from research aircraft are shown to give the ageostrophic wind velocity distribution within a jet stream system near the tropopause. Results from one case study reveal cross-height-contour ageostrophic winds exceeding 20 m s** minus **1, and centripetal-acceleration-induced ageostrophic winds approaching 100 m s** minus **1 in the exit region of a jet streak which has entered into the trough region of a synoptic wave. Diagnostic calculations are made of the horizontal velocity divergence and the geostrophic and ageostrophic components of the observed wind velocity acceleration. The results suggest caution in the application of near-straight jet-streak dynamics and the geostrophic momentum approximation of jet-streak systems embedded within large-amplitude synoptic wave regimes.

Cite

CITATION STYLE

APA

Shapiro, M. A., & Kennedy, P. J. (1981). RESEARCH AIRCRAFT MEASUREMENTS OF JET STREAM GEOSTROPHIC AND AGEOSTROPHIC WINDS. Journal of the Atmospheric Sciences, 38(12), 2642–2652. https://doi.org/10.1175/1520-0469(1981)038<2642:RAMOJS>2.0.CO;2

Register to see more suggestions

Mendeley helps you to discover research relevant for your work.

Already have an account?

Save time finding and organizing research with Mendeley

Sign up for free