Error message

Notice: Undefined offset: 0 in include() (line 35 of /home/it/www/www-icts/sites/all/themes/riley/templates/views/views-view-fields--related-file-field-collection-view.tpl.php).
Joy merwin monteiro (Stockholm University, Sweden)
Date & Time
Wed, 23 January 2019, 11:30 to 12:30
Amal Raychaudhuri Meeting Room, ICTS Campus, Bangalore

The interaction between one-dimensional gravity and Kelvin waves and  moist  convection  is  analysed  in  a  shallow  water  model with an emphasis on physical interpretation. A Betts-Miller type convective parameterisation is used, and the influence of moisture on  wave  speed  and  stability  is  studied  both  at  the  limit  of a  vanishing  convective  relaxation  timescale  (or  “strict  quasi-equilibrium”)  and  for  finite  relaxation  timescales.

A physical picture is built for the response of these gravity waves to the gross moist stability and convective relaxation timescale. Furthermore, the gross moist stability "seen" by the wave is seen to be dependent on the details of the convection scheme.

Finally, the  statement  “Kelvin  waves  are  gravity  waves with  rotation”  is  made  rigorous  by  analysing the mathematical structure of the Kelvin wave equations and the relationship of this structure to that of one-dimensional gravity waves.