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SUMMARY:PhD defence Valentino Neduhal\, 19 June\, 10 a.m.
DTSTART:20260619T080000Z
DTEND:20260619T100000Z
DTSTAMP:20260707T075400Z
UID:indico-event-765@www.conferences.uni-hamburg.de
DESCRIPTION:Vertical Momentum Fluxes associated with the Rossby\, mixed Ro
 ssby-gravity\, inertia-gravity\, and Kelvin waves on the sphere\nGenerated
  in the troposphere\, vertically propagating Rossby\, inertia-gravity (IG)
 \, and equatorial Kelvin and mixed Rossby-gravity (MRG) waves transport ho
 rizontal momentum into the stratosphere\, where they interact with the mea
 n flow. This wave-mean flow coupling is diagnosed through vertical momentu
 m fluxes (VMFs) and is responsible\, among other phenomena\, for the leadi
 ng mode of variability in the tropical stratosphere\, the Quasi-Biennial O
 scillation (QBO). Quantifying VMFs and attributing them to individual wave
  types is therefore essential for understanding the stratospheric dynamics
 \, particularly processes behind the QBO.\nIn my thesis I propose a new no
 rmal-mode function (NMF) based decomposition method for quantifying VMFs b
 y wave type. Decomposition is based on spatial structure of waves rather t
 han wavenumber-frequency properties\, making the separation of VMFs by wav
 e type less ambiguous since different modes can be distinguished even thou
 gh they coexist at the same wavenumber and frequency.\n \nFor online part
 icipation\, please register by Thursday\, 18 June\, 6 p.m. The link will b
 e sent after registration closes.\n\nhttps://www.conferences.uni-hamburg.d
 e/event/765/
LOCATION:22/23 (Bundesstraße 53)
URL:https://www.conferences.uni-hamburg.de/event/765/
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