Results 61 to 70 of about 305,398 (310)

Assimilation of radiance tendency observations from geostationary satellites in NCEP's Global Forecast System

Quarterly Journal of the Royal Meteorological Society, EarlyView.
A new approach assimilating the temporal variation of geostationary clear‐sky radiance observations has been proposed and first tested using the US global model. In this initial study, the technique produces neutral to slightly positive forecast metrics compared to traditional radiance assimilation over all surface types.
Agnes H. N. Lim, Zhenglong Li, Sharon E. Nebuda, James A. Jung   +3 more
wiley   +1 more source

A regional implementation of a mixed finite‐element, semi‐implicit dynamical core

Quarterly Journal of the Royal Meteorological Society, EarlyView.
A regional version of a new dynamical core with an iterated semi‐implicit time discretisation and mixed finite‐element spatial discretisation is described. This involves modifying the mixed‐system and Helmholtz‐preconditioner equations to use lateral boundary condition (LBC) data specified by a driving model.
Christine Johnson, Ben Shipway, Thomas Melvin, Thomas Bendall, James Kent, Ian Boutle, Alex Brown, Mohamed Zerroukat, Benjamin Buchenau, Nigel Wood   +9 more
wiley   +1 more source

Impacts of atmospheric river reconnaissance dropsondes on ECMWF Integrated Forecasting System precipitation forecasts

Quarterly Journal of the Royal Meteorological Society, EarlyView.
Impacts of Atmospheric River Reconnaissance dropsonde observations on precipitation forecasts over the U.S. West Coast are examined in the European Centre for Medium‐Range Weather Forecasts (ECMWF) Integrated Forecasting System (IFS), using observing‐system experiments.
Jia Wang, David A. Lavers, Luca Delle Monache, Bruce Ingleby, Minghua Zheng, Xingren Wu, Fred Martin Ralph, Florian Pappenberger   +7 more
wiley   +1 more source

Windstorm Extremes in a Warmer World: Raising the Bar for Destruction

Geophysical Research Letters
Extratropical cyclones occasionally escalate into devastating windstorms in Western Europe, causing damages worth billions of euros. However, their response to anthropogenic climate change remains uncertain, primarily due to limitations of coarse ...
Rune M. K. Zeitzen, Jens H. Christensen, Johanne Øelund, Henrik Feddersen, Henrik Vedel, Niels W. Nielsen, Dominic Matte   +6 more
doaj   +1 more source

Joint modulation of coastal rainfall in Northeast Australia by local and large‐scale forcings

Quarterly Journal of the Royal Meteorological Society, EarlyView.
Spatially heterogeneous rainfall patterns over the coastal regions of northern Queensland are consistent between radar observations and model simulations. Rainfall propagation modulates the average rainfall distribution, leading to inhomogeneous rainfall patterns along the coast.
T. L. Dao, C. L. Vincent, Y. Huang, S. C. Peatman, J. S. Soderholm, C. E. Birch, D. S. Roberts   +6 more
wiley   +1 more source

An Evaluation of MÉRA, a High-Resolution Mesoscale Regional Reanalysis

Journal of Applied Meteorology and Climatology, 2018
Met Éireann, the Irish Meteorological Service, has generated a very high resolution (2.5-km horizontal grid) regional climate reanalysis for Ireland called the Met Éireann Reanalysis (MÉRA).
E. Whelan, E. Gleeson, J. Hanley
semanticscholar   +1 more source

Where numerical weather prediction meets large‐eddy simulations in a convective boundary layer during the FESSTVaL field experiment

Quarterly Journal of the Royal Meteorological Society, EarlyView.
We exploit the Field Experiment on Sub‐mesoscale Spatio‐Temporal Variability in Lindenberg (FESSTVaL) to compare the performance of an NWP model at sub‐km resolutions with a traditional LES model. Focusing on clear‐sky ABL turbulence (June 14), shallow convective clouds and surface radiation (June 27), and deep convective cold pools (June 29), we find ...
Mirjana Sakradzija, Maike Ahlgrimm, Frank Beyrich, Chiel van Heerwaarden, Eileen Päschke, Ulrich Görsdorf, Bastian Kirsch, Juerg Schmidli, Noviana Dewani   +8 more
wiley   +1 more source

Improving convection‐permitting all‐sky infrared radiance ensemble data assimilation through mitigating deleterious non‐Gaussian artifacts

Quarterly Journal of the Royal Meteorological Society, EarlyView.
Ensemble Kalman filters (EnKFs) with quality control (QC) are commonly used in the data assimilation (DA) of all‐sky satellite‐sensed infrared radiance (IR) observations. However, the statistical assumptions underlying EnKFs and QC are violated in such DA.
Man‐Yau Chan
wiley   +1 more source

Scale interactions of deep convection in the Sahel: Exploring ring patterns in lagged cross‐correlations of rainfall

Quarterly Journal of the Royal Meteorological Society, EarlyView.
Spatio‐temporal patterns in rainfall are evidence of scale interactions in convection in the West African Sahel. Radial normalization of two‐dimensional conditional probability maps reveals a ring‐like structure in rainfall probabilities surrounding previous rainfall.
James Bassford, Douglas J. Parker, John Marsham, James Warner   +3 more
wiley   +1 more source

Ten Years of Boundary-Layer and Wind-Power Meteorology at Høvsøre, Denmark

Boundary-layer Meteorology, 2015
Operational since 2004, the National Centre for Wind Turbines at Høvsøre, Denmark has become a reference research site for wind-power meteorology. In this study, we review the site, its instrumentation, observations, and main research programs.
A. Peña, R. Floors, A. Sathe, S. Gryning, R. Wagner, M. Courtney, X. Larsén, A. Hahmann, C. Hasager   +8 more
semanticscholar   +1 more source