The performance of a variable‐resolution 300‐m ensemble for forecasting convection over London

KE Hanley, HW Lean - Quarterly Journal of the Royal …, 2024 - Wiley Online Library
When using sub‐km models to forecast convection, it is important to have a large enough
domain to allow convection to fully spin‐up from the lateral boundaries. However, running …

On the role of macrophysics and microphysics in km‐scale simulations of mixed‐phase clouds during cold air outbreaks

K Van Weverberg, S Giangrande… - Journal of …, 2023 - Wiley Online Library
Regional atmospheric models struggle to maintain supercooled liquid in mixed‐phase
clouds during polar cold‐air outbreaks (CAOs). Previous studies focused on the …

Confronting the convective gray zone in the global configuration of the Met Office Unified Model

L Tomassini, M Willett, A Sellar, A Lock… - Journal of Advances …, 2023 - Wiley Online Library
In atmospheric models with kilometer‐scale grids the resolution approaches the scale of
convection. As a consequence the most energetic eddies in the atmosphere are partially …

Forecasts of fog events in northern India dramatically improve when weather prediction models include irrigation effects

DKE Smith, S Reka, SR Dorling, AN Ross… - … Earth & Environment, 2024 - nature.com
Dense wintertime fog regularly impacts Delhi, severely affecting road and rail transport,
aviation and human health. Recent decades have seen an unexplained increase in fog …

Impact of domain size on tropical precipitation within explicit convection simulations

RW Jones, C Sanchez, H Lewis… - Geophysical …, 2023 - Wiley Online Library
We investigate the sensitivity of modeled tropical precipitation accumulation, intensity and
structures to the extent of convection‐permitting limited area model (LAM) domain size. Our …

urbisphere -Berlin Campaign: Investigating Multiscale Urban Impacts on the Atmospheric Boundary Layer

D Fenner, A Christen, S Grimmond… - Bulletin of the …, 2024 - journals.ametsoc.org
For next-generation weather and climate numerical models to resolve cities, both higher
spatial resolution and subgrid parameterizations of urban canopy–atmosphere processes …

The THINICE field campaign: Interactions between arctic cyclones, tropopause polar vortices, clouds, and sea ice in summer

G Rivière, J Delanoë, JD Doyle… - Bulletin of the …, 2024 - journals.ametsoc.org
The THINICE field campaign, based in Svalbard in August 2022, provided unique
observations of summertime Arctic cyclones, their coupling with cloud cover, and their …

Impacts of free tropospheric turbulence parametrisation on a sheared tropical cyclone

AA Johnson, J Schwendike, AN Ross… - Quarterly Journal of …, 2024 - Wiley Online Library
The turbulent transport of momentum, heat, and moisture can impact tropical cyclone
intensity. However, representing subgrid‐scale turbulence accurately in numerical weather …

Characteristics of diagnostics for identifying elevated convection over the British Isles in a convection-allowing model

DLA Flack, M Lehnert, HW Lean… - Weather and …, 2023 - journals.ametsoc.org
Identifying modes of convection can be useful in both forecasting and research. For
example, it allows for potentially different impacts to be determined in forecasting contexts …

Wind shear effects in convection–permitting models influence MCS rainfall and forcing of tropical circulation

B Maybee, JH Marsham, CM Klein… - Geophysical …, 2024 - Wiley Online Library
Abstract Mesoscale Convective Systems (MCSs) play a critical role in tropical rainfall
patterns and circulations. To reduce persistent biases and improve understanding of the …