Results 51 to 60 of about 1,187,144 (257)

A model intercomparison analysing the link between column ozone and geopotential height anomalies in January [PDF]

Atmospheric Chemistry and Physics, 2008
A statistical framework to evaluate the performance of chemistry-climate models with respect to the interaction between meteorology and column ozone during northern hemisphere mid-winter, in particularly January, is used.
P. Braesicke, C. Brühl, M. Dameris, R. Deckert, V. Eyring, M. A. Giorgetta, E. Mancini, E. Manzini, G. Pitari, J. A. Pyle, B. Steil   +10 more
doaj  

January ozone anomaly over the North Atlantic-European region: Longitude-dependent decadal change in total ozone during 1979-1992

Meteorologische Zeitschrift, 1996
A large decrease in total ozone of up to more than 4 DU/yr occurred over Europe during January 1979-1992. This value is almost twice that of the zonal mean.
D. Peters, G. Entzian
doaj   +1 more source

Characteristics of diabatically influenced cyclones with high wind damage potential in Europe

Quarterly Journal of the Royal Meteorological Society, EarlyView.
Diabatic processes contribute, on average, 26% to the intensification of European winter storms, with diabatically driven cyclones exhibiting steeper deepening rates, stronger wind gusts, and increased precipitation. These storms are linked to enhanced warm conveyor belt (WCB) activity and develop in a warmer environment with elevated lower ...
Svenja Christ, Julian Quinting, Joaquim G. Pinto   +2 more
wiley   +1 more source

Evaluation of recent combined global geopotential models in Brazil

Journal of Geodetic Science, 2018
The aim of this paper is to present a quantitative analysis of the adequacy of the main currently existing combined Global Geopotential Models (GGMs) for modeling normal-geoid heights throughout Brazil.
Nicacio E., Dalazoana R., Freitas S. R. C. de   +2 more
doaj   +1 more source

On the connection of the Ecuadorian Vertical Datum to the IHRS

Journal of Geodetic Science, 2023
In this work, the determination of the discrepancy between the Ecuadorian Vertical Datum (EVD) and the International Height Reference System (IHRS) is presented.
Carrión José L., de Freitas Sílvio R. Correia, Barzaghi Riccardo   +2 more
doaj   +1 more source

Windows of opportunity in subseasonal weather regime forecasting: A statistical–dynamical approach

Quarterly Journal of the Royal Meteorological Society, EarlyView.
This study explores how the atmospheric state at initialisation creates windows of opportunity for improving week 3 forecasts of weather regime activity. Greenland blocking activity increases following Madden–Julian Oscillation phases 7, 8, and 1 and weak stratospheric polar vortex states, revealing patterns exploitable by statistical models.
Fabian Mockert, Christian M. Grams, Sebastian Lerch, Julian Quinting   +3 more
wiley   +1 more source

Assimilation of European and global Mode‐S aircraft observations into the Met Office global deterministic numerical weather prediction model

Quarterly Journal of the Royal Meteorological Society, EarlyView.
European and global Mode‐S aircraft reports have been assimilated into the Met Office global deterministic numerical weather prediction model, improving forecast accuracy for wind, temperature, and geopotential height. This is the first time global Mode‐S network data have been assimilated, which include data from under‐observed regions, and has ...
Elliott Warren, Warren Tennant, Edmund Stone, Joanne Waller, Christopher Thomas, Adam Maycock   +5 more
wiley   +1 more source

Cosmic Ray Counting Variability From Water‐Cherenkov Detectors as a Proxy of Stratospheric Conditions in Antarctica

Earth and Space Science
This work examines atmospheric effects on cosmic ray counts observed by a Water‐Cherenkov detector at the Argentine Antarctic Marambio Station. We analyze the influence of ground‐level barometric pressure and geopotential height at various pressure ...
N. A. Santos, N. Gómez, S. Dasso, A. M. Gulisano, L. Rubinstein, M. Pereira, O. Areso, for the LAGO Collaboration   +7 more
doaj   +1 more source

System Predictability Assessed by Low Wavenumber Fourier Components and Analogue Pair Progression of Geopotential Height

Atmosphere, 2023
Following Lorenz’s work using analogue pairs for establishing 10-to-14-day predictability limits for synoptic weather regimes, predictability limits for the Rex block, the long-wave wintertime ridge over the eastern Pacific Ocean and the western United ...
Marshall Liddle, Hans Moosmüller, John Lewis   +2 more
doaj   +1 more source

Recent Study of Anomaly of Global Annual Geopotential Height and Global Warming

, 2014
This paper studies the anomaly of global annual 500 hpa geopotential anomaly and global warming through the period (1950-2011). Anomaly method, linear trend and linear correlation coefficient techniques are referred to identify and describe the ...
Y. Hafez, M. Almazroui
semanticscholar   +1 more source