Results 81 to 90 of about 49,766 (339)

Comparison of two numerical weather prediction models in simulating south foehn in the Alpine Rhine Valley

Quarterly Journal of the Royal Meteorological Society, EarlyView.
ICON outperforms COSMO in simulating a south foehn event in the Alpine Rhine Valley, with improved accuracy in temperature, wind speed, and foehn timing. This enhanced performance likely results from a more accurate representation of surface energy balance and gravity wave pattern on the lee side of the mountain.
Yue Tian, Julian Quimbayo Duarte, Shweta Singh, Juerg Schmidli   +3 more
wiley   +1 more source

Microphysical Simulation of the 2022 Hunga Volcano Eruption Using a Sectional Aerosol Model

Geophysical Research Letters
Approximately 150 Tg of water vapor and 0.42 Tg of sulfur dioxide were injected directly into the stratosphere by the January 2022 Hunga volcanic eruption, which represents the largest water vapor injection in the satellite era. A comparison of numerical
Chenwei Li, Yifeng Peng, Elizabeth Asher, Alexandre A. Baron, Michael Todt, Troy D. Thornberry, Stephanie Evan, Jerome Brioude, Penny Smale, Richard Querel, Karen H. Rosenlof, Luxi Zhou, Jingyuan Xu, Kai Qie, Jianchun Bian, Owen B. Toon, Yunqian Zhu, Pengfei Yu   +17 more
doaj   +1 more source

Assessing the role of urban blue space in summer outdoor thermal regulation in northwestern Europe: A hectometric Weather Research and Forecasting modelling on idealized urban landscape

Quarterly Journal of the Royal Meteorological Society, EarlyView.
Using hectometric Weather Research and Forecasting simulations, we examine how urban blue spaces mitigate extreme summer heat in northwestern European cities through neighbourhood‐scale cooling mechanisms. Results show horizontal advection dominates cooling by mixing cooler air from waterbodies with warmer urban air, providing ∼50W·m−2$$ \sim 50\kern0 ...
Xuan Chen, Srinidhi Gadde, Arjan Droste, Gert‐Jan Steeneveld, Miriam Coenders‐Gerrits, Remko Uijlenhoet   +5 more
wiley   +1 more source

Performance evaluation of regional weather predictions with the Model for Prediction Across Scales – Atmosphere (MPAS‐A) over the Maritime Continent

Quarterly Journal of the Royal Meteorological Society, EarlyView.
As part of the ongoing efforts to develop next‐generation forecasting systems at the Meteorological Service Singapore, this study presents the setup and evaluation of the SINGV_NG(MPAS) system. Overall, the SINGV_NG(MPAS) system outperforms European Centre for Medium‐Range Weather Forecasts (ECMWF) deterministic forecasts in capturing heavy rainfall ...
I‐Han Chen, Pratiman Patel, Kalli Furtado, Wei Wang, Zhiquan Liu, Dale Barker, Jimy Dudhia, Hugh Zhang   +7 more
wiley   +1 more source

Effects of a Vertical Cloud Condensation Nuclei Concentration Explosion in an Idealized Hailstorm Simulation

Geophysical Research Letters
Determination of the key vertical level for cloud condensation nuclei concentration (CCNC) explosions has been a long‐term issue in CCN‐cloud interaction studies.
Rongjun Ma, Xiaofei Li
doaj   +1 more source

Reconciling observed GRB prompt spectra with synchrotron radiation ?

, 2010
(abridged)Prompt GRB emission is often interpreted as synchrotron radiation from high-energy electrons accelerated in internal shocks. Fast synchrotron cooling predicts that the photon index below the spectral peak is alpha=-3/2.
Abdo, Asano, Asano, Band, Baring, Barraud, Belmont, Beloborodov, Borgonovo, Bošnjak, Crider, Daigne, Daigne, Daigne, Daigne, Derishev, Drenkhahn, F. Daigne, Ford, G. Dubus, Ghirlanda, Ghirlanda, Ghisellini, Ghisellini, Giannios, Giannios, Giannios, Granot, Kaneko, Kobayashi, Krimm, Kumar, Liang, Lithwick, Lloyd, Lloyd-Ronning, Mallozzi, Martins, Medvedev, Meszaros, Mimica, Mimica, Mészáros, Nakar, Panaitescu, Pe’er, Pe’er, Pe’er, Piran, Preece, Preece, Pélangeon, Racusin, Ramirez-Ruiz, Rees, Rees, Ryde, Sakamoto, Sakamoto, Sari, Sari, Sari, Spitkovsky, Spitkovsky, Spruit, Stern, Thompson, Vurm, Wang, Zou, Ž. Bošnjak   +70 more
core   +3 more sources

Moisture and wind effects of Rossby waves on Western Pacific Intertropical Convergence Zone breakdown events

Quarterly Journal of the Royal Meteorological Society, EarlyView.
(a) Organized convection: clouds are clustered at the southern edge of the domain, aligning with the warmest SST. Northeasterly winds prevail, facilitating convection confinement to the southern part of the domain. (b) ITCZ breakdown: the clouds are spread throughout the domain.
Alejandro Casallas, Adrian Mark Tompkins, Caroline Muller   +2 more
wiley   +1 more source

Observations of anthropogenic cloud condensation nuclei [PDF]

Cloud Condensation Nuclei (CCN) concentrations and spectral measurements obtained with the DRI instantaneous CCN spectrometer (Hudson, 1989) over the last few years are presented. The climatic importance of cloud microphysics has been pointed out.
Hudson, James G.
core   +1 more source

Assessing high‐resolution numerical models and bottom‐boundary factors for a Mediterranean heavy precipitation event

Quarterly Journal of the Royal Meteorological Society, EarlyView.
State‐of‐the‐art, convection‐permitting NWP models reproduced the main features of the October 22–23, 2019 heavy precipitation event in Catalonia. However, slight configuration changes yielded varying streamflow responses and statistical performance, highlighting the challenge of simulating these events in Mediterranean medium‐sized basins ...
D. Ramonell, D. S. Carrió, A. Amengual, R. Romero   +3 more
wiley   +1 more source

An anatomy of fog over Nova Scotia under a ridge on 8 September 2021

Quarterly Journal of the Royal Meteorological Society, EarlyView.
Image from an aircraft traveling eastward at 1230 UTC (0930 Atlantic Daylight Time, ADT) on 8 September 2021. The view is to the southeast over the eastern coast of Nova Scotia. The leading head of the fog bank is in the image with its base on the sea surface.
Clive E. Dorman, Jeonghoe Kim, Jung‐Hoon Kim, Darko Koračin, Reneta N. Dimitrova, H. J. S. Fernando   +5 more
wiley   +1 more source