Zobrazeno 1 - 10
of 24
pro vyhledávání: '"C. M. Grams"'
Publikováno v:
Natural Hazards and Earth System Sciences, Vol 24, Pp 2995-3012 (2024)
The ever-increasing complexity and data volumes of numerical weather prediction demand innovations in the analysis and synthesis of operational forecast data. Here we show how dynamical thinking can offer directly applicable forecast information, tak
Externí odkaz:
https://doaj.org/article/efe14ba0e5b54e6a9e9b7ae6ebe1440c
Autor:
M. Deinhard, C. M. Grams
Publikováno v:
Weather and Climate Dynamics, Vol 5, Pp 927-942 (2024)
Stochastic parametrisation techniques have been used by operational weather centres for decades to produce ensemble forecasts and to represent uncertainties in the forecast model. Their use has been demonstrated to be highly beneficial, as it increas
Externí odkaz:
https://doaj.org/article/9bcc929a82d04de4996870527499c77f
Publikováno v:
Weather and Climate Dynamics, Vol 5, Pp 633-658 (2024)
Blocking over Greenland stands out in comparison to blocking in other regions, as it favors accelerated Greenland Ice Sheet melting and has substantial impacts on surface weather in adjacent regions, particularly in Europe and North America. Climate
Externí odkaz:
https://doaj.org/article/1d9c4ff5c3754869b8d1ab841efb9a54
Publikováno v:
Geophysical Research Letters, Vol 51, Iss 14, Pp n/a-n/a (2024)
Abstract Atmospheric prediction at 2–6 weeks lead time (so‐called subseasonal‐to‐seasonal timescales) entails large forecast uncertainty. Here we investigate the flow‐dependence of this uncertainty during Boreal winter. We categorize the la
Externí odkaz:
https://doaj.org/article/aca39538c90242c898c81014dd2b9f4c
Publikováno v:
Weather and Climate Dynamics, Vol 5, Pp 181-209 (2024)
The development of atmospheric blocks over the North Atlantic–European region can lead to extreme weather events like heat waves or cold air outbreaks. Despite their potential severe impact on surface weather, the correct prediction of blocking lif
Externí odkaz:
https://doaj.org/article/0f5e1a4bb8ef4f74a1d3d1b39fb2cdd3
Publikováno v:
Weather and Climate Dynamics, Vol 5, Pp 65-85 (2024)
Research in the last few decades has revealed that rapidly ascending airstreams in extratropical cyclones – so-called warm conveyor belts (WCBs) – play an important role in extratropical atmospheric dynamics. However on the subseasonal timescale,
Externí odkaz:
https://doaj.org/article/121e6a26fbbf45fd8d53a30b6cfb57d4
Publikováno v:
Atmospheric Chemistry and Physics, Vol 23, Pp 8553-8581 (2023)
Warm conveyor belts (WCBs) produce a major fraction of precipitation in extratropical cyclones and modulate the large-scale extratropical circulation. Diabatic processes, in particular associated with cloud formation, influence the cross-isentropic a
Externí odkaz:
https://doaj.org/article/38496e69e2094dbda2e00a22c866c750
Autor:
A. Seifert, V. Bachmann, F. Filipitsch, J. Förstner, C. M. Grams, G. A. Hoshyaripour, J. Quinting, A. Rohde, H. Vogel, A. Wagner, B. Vogel
Publikováno v:
Atmospheric Chemistry and Physics, Vol 23, Pp 6409-6430 (2023)
Dusty cirrus clouds are extended optically thick cirrocumulus decks that occur during strong mineral dust events. So far they have mostly been documented over Europe associated with dust-infused baroclinic storms. Since today's global numerical weath
Externí odkaz:
https://doaj.org/article/6ac701b6eb1e4149ac9f4c1b5658a5e5
Publikováno v:
Weather and Climate Dynamics, Vol 4, Pp 399-425 (2023)
Atmospheric blocking describes a situation in which a stationary and persistent anticyclone blocks the eastward propagation of weather systems in the midlatitudes and can lead to extreme weather events. In the North Atlantic–European region, blocki
Externí odkaz:
https://doaj.org/article/b83d182a0ce14b5ea659cdeac2b97343
Publikováno v:
Weather and Climate Dynamics, Vol 4, Pp 265-285 (2023)
Weather regimes govern an important part of the sub-seasonal variability of the mid-latitude circulation. Due to their role in weather extremes and atmospheric predictability, regimes that feature a blocking anticyclone are of particular interest. Th
Externí odkaz:
https://doaj.org/article/af51691ee03d475e8641b898551317e4