Two-dimensional structure of mountain wave observed by aircraft during the PYREX experiment

Details Two-dimensional structure of mountain wave observed by aircraft during the PYREX experiment Two-dimensional structure of mountain wave observed by aircraft during the PYREX experiment

Jun 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997angeo..15..823a&link_type=abstract

Annales Geophysicae, vol. 15, Issue 6, pp.823-839

Physics

5

Scientific paper

This study presents an experimental analysis from aircraft measurements above the Pyrenees chain during the PYREX experiment. The Pyrenees chain, roughly WE oriented, is a major barrier for northerly and southerly airflows. We present a case of southerly flow (15 October 1990) and three successive cases of northerly flows above the Pyrenees (14, 15 and 16 November 1990) documented by two aircraft. The aircraft have described a vertical cross section perpendicular to the Pyrenean ridge. This area is described via the thermodynamical and dynamical fields which have a horizontal resolution of 10 km. Three methods for computing the vertical velocity of the air are presented. The horizontal advection terms which play a role in the budget equations are also evaluated. The altitude turbulence zone of 15 October are shown via turbulent fluxes, turbulent kinetic energy (TKE), dissipation rate of TKE and inertial length-scale. A comparison of results obtained by eddy-correlation and inertial-dissipation method is presented. The experimental results show a warm and dry downdraft for the southerly flow with large values for advection terms. All the mountain wave cases are also shown to present an important dynamical perturbation just above the Pyrenees at upper altitudes.

Affiliated with

Also associated with

No associations

Rating

Two-dimensional structure of mountain wave observed by aircraft during the PYREX experiment does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Two-dimensional structure of mountain wave observed by aircraft during the PYREX experiment, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Two-dimensional structure of mountain wave observed by aircraft during the PYREX experiment will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1472631