Search Results - "Grams, Christian"

Balancing Europe’s wind-power output through spatial deployment informed by weather regimes by Grams, Christian M., Beerli, Remo, Pfenninger, Stefan, Staffell, Iain, Wernli, Heini

“…Weather regimes drive variability in wind-power generation across Europe, affecting energy security. Strategically deployed wind turbines in regions of…”
Get full text

An atmospheric dynamics perspective on the amplification and propagation of forecast error in numerical weather prediction models: A case study by Grams, Christian M., Magnusson, Linus, Madonna, Erica

“…Despite huge progress made, state‐of‐the‐art numerical weather prediction systems occasionally experience severe forecast busts for the large‐scale…”
Get full text

Stratospheric modulation of the large‐scale circulation in the Atlantic–European region and its implications for surface weather events by Beerli, Remo, Grams, Christian M.

“…Extreme states of the stratospheric polar vortex can have long‐lasting impacts on extratropical circulation patterns, such as the North Atlantic Oscillation…”
Get full text

Multi‐model assessment of sub‐seasonal predictive skill for year‐round Atlantic–European weather regimes by Osman, Marisol, Beerli, Remo, Büeler, Dominik, Grams, Christian M.

“…The prediction skill of sub‐seasonal forecast models is evaluated for seven year‐round weather regimes in the Atlantic–European region. Reforecasts based on…”
Get full text

The link between eddy‐driven jet variability and weather regimes in the North Atlantic‐European sector by Madonna, Erica, Li, Camille, Grams, Christian M., Woollings, Tim

“…This study reconciles two perspectives on wintertime atmospheric variability in the North Atlantic–European sector: the zonal‐mean framework comprising three…”
Get full text

Year‐round sub‐seasonal forecast skill for Atlantic–European weather regimes by Büeler, Dominik, Ferranti, Laura, Magnusson, Linus, Quinting, Julian F., Grams, Christian M.

“…Weather regime forecasts are a prominent use case of sub‐seasonal prediction in the midlatitudes. A systematic evaluation and understanding of year‐round…”
Get full text

Does the lower stratosphere provide predictability for month‐ahead wind electricity generation in Europe? by Beerli, Remo, Wernli, Heini, Grams, Christian M.

“…Wind power is playing an increasingly important role in Europe's electricity generation. Accurate forecasts of wind‐power output on various spatial and…”
Get full text

Stratospheric influence on ECMWF sub‐seasonal forecast skill for energy‐industry‐relevant surface weather in European countries by Büeler, Dominik, Beerli, Remo, Wernli, Heini, Grams, Christian M.

“…Meteorologists in the energy industry increasingly draw upon the potential for enhanced sub‐seasonal predictability of European surface weather following…”
Get full text

Exceptional Air Mass Transport and Dynamical Drivers of an Extreme Wintertime Arctic Warm Event by Binder, Hanin, Boettcher, Maxi, Grams, Christian M., Joos, Hanna, Pfahl, Stephan, Wernli, Heini

“…At the turn of the years 2015/2016, maximum surface temperature in the Arctic reached record‐high values, exceeding the melting point, which led to a strong…”
Get full text

Sub-national variability of wind power generation in complex terrain and its correlation with large-scale meteorology by Pickering, Bryn, Grams, Christian M, Pfenninger, Stefan

“…The future European electricity system will depend heavily on variable renewable generation, including wind power. To plan and operate reliable electricity…”
Get full text

Improving forecasts of precipitation extremes over northern and central Italy using machine learning by Grazzini, Federico, Dorrington, Joshua, Grams, Christian M., Craig, George C., Magnusson, Linus, Vitart, Frederic

“…The accurate prediction of intense precipitation events is one of the main objectives of operational weather services. This task is even more relevant…”
Get full text

Warm conveyor belts as amplifiers of forecast uncertainty by Pickl, Moritz, Quinting, Julian F., Grams, Christian M.

“…Abstract Warm conveyor belts (WCBs) are rapidly ascending air streams associated with extratropical cyclones. WCBs exert a substantial influence on the…”
Get full text

Impact of Saharan dust outbreaks on short‐range weather forecast errors in Europe by Hermes, Kilian, Quinting, Julian, Grams, Christian M., Hoose, Corinna, Hoshyaripour, Gholam Ali

“…Mineral dust, the most abundant atmospheric aerosol by mass, interacts with radiation directly and alters cloud properties indirectly. Many operational…”
Get full text

The effect of stochastically perturbed parametrisation tendencies (SPPT) on rapidly ascending air streams by Pickl, Moritz, Lang, Simon T. K., Leutbecher, Martin, Grams, Christian M.

“…The stochastically perturbed parametrisation tendency (SPPT) scheme is a well‐established technique in ensemble forecasting to address model uncertainty by…”
Get full text

Meteorological conditions during periods of low wind speed and insolation in Germany: The role of weather regimes by Mockert, Fabian, Grams, Christian M., Brown, Tom, Neumann, Fabian

“…Renewable power generation from wind and solar energy is strongly dependent on the weather. To plan future sustainable energy systems that are robust to…”
Get full text

Interaction of microphysics and dynamics in a warm conveyor belt simulated with the ICOsahedral Nonhydrostatic (ICON) model by Oertel, Annika, Miltenberger, Annette K, Grams, Christian M, Hoose, Corinna

“…Warm conveyor belts (WCBs) produce a major fraction of precipitation in extratropical cyclones and modulate the large-scale extratropical circulation. Diabatic…”
Get full text

The Linkage of Serial Cyclone Clustering in Western Europe and Weather Regimes in the North Atlantic‐European Region in Boreal Winter by Hauser, Seraphine, Mueller, Sebastian, Chen, Xiaoyang, Chen, Ting‐Chen, Pinto, Joaquim G., Grams, Christian M.

“…Extra‐tropical cyclones are an important source of weather variability in the mid‐latitudes. Multiple occurrences in a short period of time at a particular…”
Get full text

The key role of diabatic processes in modifying the upper‐tropospheric wave guide: a North Atlantic case‐study by Grams, Christian M., Wernli, Heini, Böttcher, Maxi, Čampa, Jana, Corsmeier, Ulrich, Jones, Sarah C., Keller, Julia H., Lenz, Claus‐Jürgen, Wiegand, Lars

“…This study highlights the importance of diabatic processes for the complex interaction of weather systems in the North Atlantic–European sector during the week…”
Get full text

A weather system perspective on winter–spring rainfall variability in southeastern Australia during El Niño by Hauser, Seraphine, Grams, Christian M., Reeder, Michael J., McGregor, Shayne, Fink, Andreas H., Quinting, Julian F.

“…The El Niño phase of the El Niño Southern Oscillation (ENSO) is typically associated with below‐average cool‐season rainfall in southeastern Australia (SEA)…”
Get full text

European high-impact weather caused by the downstream response to the extratropical transition of North Atlantic Hurricane Katia (2011) by Grams, Christian M., Blumer, Sandro R.

“…Tropical cyclones undergoing extratropical transition (ET) are thought to cause high‐impact weather (HIW) close to the transitioning tropical cyclone and in…”
Get full text