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the claim
Positive potential vorticity anomalies propagate westwards in the atmosphere.
the verdict
SUPPORTED
the evidence backs this
refutedsupported
the weight of evidence
3 sources for · 0 against

Positive potential vorticity anomalies, such as troughs and ridges associated with Rossby wave packets in the atmosphere, propagate westward relative to the mean flow or via upstream wave dispersion.

Evidence for · 3
Dynamics of Rossby Wave Packets in a Quantitative Potential Vorticity–Potential Temperature Framework
2016 · cited by 51
Discusses Rossby wave packets and PV anomaly propagation along the midlatitude waveguide.
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The analysis

The retrieved papers examine potential vorticity dynamics, Rossby wave packets, and their propagation mechanisms in the atmosphere, consistently supporting the principle that PV anomalies propagate westward in the context of Rossby wave dynamics and wave packet evolution.

More for · 2
Rossby wave propagation on potential vorticity fronts with finite width
2016 · cited by 24
Examines Rossby wave propagation on potential vorticity fronts and upstream/westward phase speeds.
Potential-Vorticity Dynamics of Troughs and Ridges within Rossby Wave Packets during a 40-year reanalysis period
2020 · cited by 1
Analyzes potential vorticity dynamics of troughs and ridges within Rossby wave packets using long-term reanalysis data.
The paper trail · every fact has a biography
first checked04 Aug 2026
judged → SUPPORTED · 8604 Aug 2026
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