3 papers
physics.ao-ph2026
A more predictable Madden-Julian Oscillation index derived from Koopman spectral analysis
Claire Valva, Edwin P. Gerber
The Madden-Julian oscillation (MJO) is a major source of subseasonal-to-seasonal (S2S) predictability. The MJO is commonly defined and tracked with indices such as the Real-time Mu…
physics.ao-ph2026
Interpretable Neural Networks to Predict Momentum Fluxes of Orographic Gravity Waves
Elias Haslauer, Mierk Schwabe, Andreas Dörnbrack +4
State-of-the-art Earth system models (ESMs) cannot explicitly resolve many small-scale atmospheric processes such as atmospheric gravity waves, and thus must represent, or paramete…
physics.ao-ph2024
The QBO, the annual cycle, and their interactions: Isolating periodic modes with Koopman analysis
Claire Valva, Edwin P. Gerber
The Quasi-Biennial Oscillation (QBO) is the dominant mode of variability in the equatorial stratosphere. It is characterized by alternating descending easterly and westerly jets ov…