Browsing Bergen Open Research Archive by Journals "Quarterly Journal of the Royal Meteorological Society"
Now showing items 1-7 of 7
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Assessing North Atlantic winter climate response to geomagnetic activity and solar irradiance variability
(Peer reviewed; Journal article, 2019)Recent studies suggest a response in the North Atlantic winter circulation which lags by a couple of years with respect to sunspot maximum. This has been explained by two different top‐down mechanisms: a solar wind driven ... -
The impact of ensemble filter definition on the assimilation of temperature profiles in the tropical Pacific
(Journal article; Peer reviewed, 2005-10)The traditional analysis scheme in the Ensemble Kalman Filter (EnKF) uses a stochastic perturbation or randomization of the measurements which ensures a correct variance in the updated ensemble. An alternative so called ... -
The Influence of large convective eddies on the surface-layer turbulence
(Journal article; Peer reviewed, 2006-06)Close to the surface large coherent eddies consisting of plumes and downdraughts cause convergent winds blowing towards the plume axes, which in turn cause wind shears and generation of turbulence. This mechanism strongly ... -
Large‐scale regional model biases in the extra‐tropical North Atlantic storm track and impacts on downstream precipitation
(Peer reviewed; Journal article, 2019)Global climate models have circulation biases that the community aims to reduce, for instance through high‐resolution dynamical downscaling. We used the Weather Research and Forecasting model (WRF) to downscale both ... -
The link between eddy-driven jet variability and weather regimes in the North Atlantic-European sector
(Peer reviewed; Journal article, 2017-10)This study reconciles two perspectives on wintertime atmospheric variability in the North Atlantic–European sector: the zonal‐mean framework comprising three preferred locations of the eddy‐driven jet (southern, central, ... -
Resistance and heat-transfer laws for stable and neutral planetary boundary layers: old theory advanced and re-evaluated
(Journal article; Peer reviewed, 2005-07)The planetary boundary layer (PBL) resistance and heat-transfer laws express the surface fluxes of momentum and heat through the PBL governing parameters. Since the late sixties, the dimensionless coefficients (A, B and ... -
Unravelling the March 1972 northwest Greenland windstorm with high-resolution numerical simulations
(Peer reviewed; Journal article, 2019-08-07)Thule Air Base in northwest Greenland experienced an extreme windstorm during the night of 8/9 March 1972. The event is not among official WMO records because the anemometer broke after recording the highest gust of 93 m s−1. ...