Results 31 to 40 of about 35,748 (217)

The importance of diabatic processes for the dynamics of synoptic-scale extratropical weather systems – a review [PDF]

Weather and Climate Dynamics
Many fundamental concepts of synoptic-scale extratropical dynamics are based on the quasi-geostrophic equations of a dry atmosphere. This “dry dynamics” provides the essential understanding of, for example, the formation of extratropical cyclones and the
H. Wernli, S. L. Gray
doaj   +1 more source

Cloud feedbacks in extratropical cyclones: insight from long-term satellite data and high-resolution global simulations [PDF]

Atmospheric Chemistry and Physics, 2019
A negative extratropical shortwave cloud feedback driven by changes in cloud optical depth is a feature of global climate models (GCMs). A robust positive trend in observed liquid water path (LWP) over the last two decades across the warming Southern ...
D. T. McCoy, P. R. Field, P. R. Field, G. S. Elsaesser, A. Bodas-Salcedo, B. H. Kahn, M. D. Zelinka, C. Kodama, T. Mauritsen, T. Mauritsen, B. Vanniere, M. Roberts, P. L. Vidale, D. Saint-Martin, A. Voldoire, R. Haarsma, A. Hill, B. Shipway, J. Wilkinson   +18 more
doaj   +1 more source

Can climate models represent the precipitation associated with extratropical cyclones?

, 2016
Extratropical cyclones produce the majority of precipitation in many regions of the extratropics. This study evaluates the ability of a climate model, HiGEM, to reproduce the precipitation associated with extratropical cyclones.
Hawcroft, Matthew K., Hodges, Kevin I., Dacre, Helen F., Shaffrey, Len C.   +3 more
core   +1 more source

The impacts of climate change on tropical-to-extratropical transitions in the North Atlantic Basin [PDF]

Weather and Climate Dynamics
As tropical cyclones migrate toward mid-latitudes, they can transform into extratropical cyclones, a process known as extratropical transition. In the North Atlantic Basin, nearly half of hurricanes undergo this transition.
A. Garin, A. Garin, A. Garin, F. S. R. Pausata, F. S. R. Pausata, F. S. R. Pausata, M. Boudreault, M. Boudreault, M. Boudreault, R. Ingrosso, R. Ingrosso, R. Ingrosso, R. Ingrosso   +12 more
doaj   +1 more source

Assessment of the Exposure of Australia to Tropical Cyclones Through a Climatological Model for Cyclone Weather Extent

International Journal of Climatology, EarlyView.
Australia has different levels of exposure to tropical cyclones. Using historical records, this study investigates the spatial variability of tropical cyclone formation across the Southeast Indian–South Pacific basin, quantifies the exposure of different parts of Australia to tropical cyclone weather events, and examines decadal variability in cyclone ...
Adolfo Lugo Ríos, Catherine Kim, Scotte E. Bryan   +2 more
wiley   +1 more source

Comparison of extratropical cyclone characteristics from atmospheric global climate model simulations at different resolutions [PDF]

, 2013
Extratropical cyclones play a key role in weather and climate at mid and high latitudes. They are simulated with Atmospheric Global Climate Models (AGCMs) for weather forecasting and future climate projections.
Pilch Kedzierski, Robin
core  

A wavelet‐based method for the assessment of hydrodynamic model behavior against observed sea level variability

Limnology and Oceanography: Methods, EarlyView.
Abstract Sea level outputs from hydrodynamic models are often assessed against tide gauge data by comparing the standard deviations of modeled and observed time series, and by calculating the Pearson correlation coefficient and centered root mean square error (cRMSE) between the two.
Andrew Twelves, Ulpu Leijala, Antti Westerlund, Veera Haapaniemi, Jani Särkkä   +4 more
wiley   +1 more source

Multiscale numerical sensitivity simulations of a mesoscale gravity‐wave event

Quarterly Journal of the Royal Meteorological Society, EarlyView.
High‐resolution WRF simulations of the February 14–15, 1992 STORM‐FEST event show that mesoscale gravity‐wave genesis occurs via geostrophic adjustment within an upper‐level unbalanced jet, while wave ducting governs maintenance. High‐resolution (1 km), improved physical parameterization, and targeted sensitivity simulations demonstrate that upstream ...
Rajan Bhandari, Michael L. Kaplan, Ananya Sen   +2 more
wiley   +1 more source

The extratropical transition of tropical cyclone Lili (1996) and its crucial contribution to a moderate extratropical development [PDF]

, 2005
The transition that a tropical cyclone experiences as it moves into the extratropical environment (known as extratropical transition) can result in the decay or intensification of a baroclinic cyclone.
Gray, S. L., Agusti-Panareda, A., Thorncroft, C., Agusti-Panareda, Anna, Thorncroft, Chris, Craig, G. C., Gray, Suzanne, Craig, George   +7 more
core  

Lifecycle‐Type Matters for Extratropical Cyclone Precipitation Production

Geophysical Research Letters
In the midlatitudes, extratropical cyclones produce the majority of winter precipitation. Precipitation rates and accumulation depend strongly on both the cyclone intensity and the environmental moisture amount.
Catherine M. Naud, Jonathan E. Martin, Poushali Ghosh, Gregory S. Elsaesser, James F. Booth, Derek J. Posselt   +5 more
doaj   +1 more source