Search results for "Rossby waves"

showing 2 items of 2 documents

On the Co-Occurrence of Warm Conveyor Belt Outflows and PV Streamers

2014

Abstract The co-occurrence of warm conveyor belts (WCBs), strongly ascending moist airstreams in extratropical cyclones, and stratospheric potential vorticity (PV) streamers, indicators for breaking Rossby waves on the tropopause, is investigated for a 21-yr period in the Northern Hemisphere using Interim European Centre for Medium-Range Weather Forecasts (ECMWF) Re-Analysis (ERA-Interim) data. WCB outflows and PV streamers are respectively identified as two- and three-dimensional objects and tracked during their life cycle. PV streamers are more frequent than WCB outflows and nearly 15% of all PV streamers co-occur with WCBs during their life cycle, whereas about 60% of all WCB outflows co…

Atmospheric Science13. Climate actionPotential vorticityClimatologyDiabaticExtratropical cycloneNorthern HemisphereRossby waveEnvironmental scienceConveyor beltTropopauseRossby waves; ClimatologyAtmospheric sciences
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Life Cycle Study of a Diabatic Rossby Wave as a Precursor to Rapid Cyclogenesis in the North Atlantic—Dynamics and Forecast Performance

2011

Monthly Weather Review, 139 (6)

North Atlantic OceanAtmospheric ScienceCyclogenesis/cyclolysisBaroclinityRossby waveNumerical weather predictionRossby waves; Cyclogenesis/cyclolysis; North Atlantic Ocean; Numerical weather prediction; DynamicsForcing (mathematics)Rossby wavesDynamicsPotential vorticityMesoscale convective vortexClimatologyCyclogenesisExtratropical cycloneTropical cycloneGeologyMonthly Weather Review
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