Virtual Workshop: Warm Conveyor Belts – a challenge to forecasting

Models are continuously developed at numerical weather prediction (NWP) centres to improve forecast skill, with new operational model configurations adopted every few years. The parameterisations of diabatic processes are probably the most frequently updated part of NWP models as they are crucial for accurate weather predictions and contain uncertainties in their formulation. The impact of...

Despite numerous studies documenting the importance of atmospheric rivers (AR) to the global water cycle and regional precipitation, the evolution of their water vapor fluxes has been difficult to investigate given the challenges of observing and modeling precipitation processes within ARs over the ocean. This study uses satellite-based radar reflectivity profiles from the Global Precipitation...

Atmospheric rivers are a key part of the Californian climate and over the past few years, atmospheric river reconnaissance has been conducted with the aim of improving forecasts as well as understanding the physical processes present. Vertical profiles from over 1000 dropsondes stretching from the upper atmosphere to the ocean surface have been analyzed. Spanning a range of atmospheric...