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RISA Stratosphere-Troposphere Data Assimilation System
Publisher: American Meteorological Society
Abstract: A data assimilation system has been developed at the UK Meteorological Office to analyze the mix of observations available in the troposphere and stratosphere. The data assimilation system is based on the analysis correction ...
Isentropic Mass Exchange between the Tropics and Extratropics in the Stratosphere
Publisher: American Meteorological Society
Abstract: The isentropic mass exchange between the Tropics and extratropics in the stratosphere is investigated with a semi-Lagrangian transport model for the periods from 1 June to 31 October 1992 and from 1 December 1992 to 30 ...
Dynamics and Predictability of High-Impact Weather and Climate Events
Publisher: American Meteorological Society
MOGREPS-UK Convection-Permitting Ensemble Products for Surface Water Flood Forecasting: Rationale and First Results
Publisher: American Meteorological Society
Abstract: looding is one of the costliest hazards in the United Kingdom. A large part of the annual flood damage is caused by surface water flooding that is a direct result of intense rainfall. Traditional catchment-based approaches ...
High-Resolution Stratospheric Tracer Fields Estimated from Satellite Observations Using Lagrangian Trajectory Calculations
Publisher: American Meteorological Society
Abstract: A technique is introduced by which high-resolution tracer fields may be constructed from low-resolution satellite observations. The technique relies upon the continual cascade of tracer variance from large to small scales ...
Global QBO Circulation Derived from UKMO Stratospheric Analyses
Publisher: American Meteorological Society
Abstract: Global circulation anomalies associated with the stratospheric quasi-biennial oscillation (QBO) are analyzed based on U.K. Meteorological Office (UKMO) assimilated wind and temperature fields. Zonal winds and temperatures ...
Evolution of the Stratosphere during Northern Winter 1991/92 as Diagnosed from U.K. Meteorological Office Analyses
Publisher: American Meteorological Society
Abstract: Meteorological analyses, produced at the U.K. Meteorological Office by data assimilation, are used to study the circulation of the stratosphere in the Northern Hemisphere during winter 1991/92. The analyses are supplemented ...
Mixing Processes within the Polar Night Jet
Publisher: American Meteorological Society
Abstract: Lagrangian material line simulations are performed using U.K. Meteorological Office assimilated winds and temperatures to examine mixing processes in the middle- and lower-stratospheric polar night jet during the 1992 ...
Spring Dehydration in the Antarctic Stratospheric Vortex Observed by HALOE
Publisher: American Meteorological Society
Abstract: The distribution of dehydrated air in the middle and lower stratosphere during the 1992 Southern Hemisphere spring is investigated using Halogen Occultation Experiment (HALOE) observations and trajectory techniques. ...
Diagnostic Comparison of Meteorological Analyses during the 2002 Antarctic Winter
Publisher: American Meteorological Society
Abstract: Several meteorological datasets, including U.K. Met Office (MetO), European Centre for Medium-Range Weather Forecasts (ECMWF), National Centers for Environmental Prediction (NCEP), and NASA?s Goddard Earth Observation ...