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A New Assessment of the Predictability of Tropical Cyclone Tracks
Publisher: American Meteorological Society
Abstract: he inherent predictability of tropical cyclone tracks has received much attention since the 1980s. It is still an issue because of the recent improvement of track forecasts by numerical models. The aim of this study is to ...
A Cyclogenesis Evolving into Two Distinct Scenarios and Its Implications for Short-Term Ensemble Forecasting
Publisher: American Meteorological Society
Abstract: In a nonlinear quasigeostrophic model with uniform potential vorticity, an idealized initial state sharing some features with atmospheric low-predictability situations is built. Inspired by previous work on idealized ...
A Wavelet Representation of Synoptic-Scale Coherent Structures
Publisher: American Meteorological Society
Abstract: Midlatitude cyclogenesis as interpreted in the framework of either baroclinic development or potential vorticity thinking heavily relies on the concept of synoptic-scale anomaly. Given the existence of potential vorticity ...
Nonlinear Baroclinic Dynamics of Surface Cyclones Crossing a Zonal Jet
Publisher: American Meteorological Society
Abstract: Mechanisms leading a synoptic surface cyclone to cross an upper-level zonal jet and its subsequent deepening are investigated using a two-layer model on a ? plane. The baroclinic interaction of a low-level circular cyclonic ...
Verification of Ensemble-Based Uncertainty Circles around Tropical Cyclone Track Forecasts
Publisher: American Meteorological Society
Abstract: everal tropical cyclone forecasting centers issue uncertainty information with regard to their official track forecasts, generally using the climatological distribution of position error. However, such methods are not able ...
Multivariate Emulation of Kilometer-Scale Numerical Weather Predictions with Generative Adversarial Networks: A Proof of Concept
Publisher: American Meteorological Society
Dynamical and Physical Processes Leading to Tropical Cyclone Intensification under Upper-Level Trough Forcing
Publisher: American Meteorological Society
Abstract: he rapid intensification of Tropical Cyclone (TC) Dora (2007, southwest Indian Ocean) under upper-level trough forcing is investigated. TC?trough interaction is simulated using a limited-area operational numerical weather ...