Search
CSV
RISUnderstanding Atmospheric Motion Vector Vertical Representativity Using a Simulation Study and First-Guess Departure Statistics
Publisher: American Meteorological Society
Abstract: tmospheric motion vectors (AMVs) have been produced for decades and remain an important source of wind information. Many studies have suggested that the traditional interpretation of AMVs as representative of the wind at ...
On the Use of Satellite-Derived Heating Rates for Data Assimilation within the Tropics
Publisher: American Meteorological Society
Abstract: The HIRS instrument on the NOAA polar orbiting satellites is used to obtain coverage of outward-going longwave radiation across the global tropics and subtropics four times a day. Fractional coverage of cold cloud is ...
Impact of a New Cloud Motion Wind Product from Meteosat on NWP Analyses and Forecasts
Publisher: American Meteorological Society
Abstract: Enhanced wind datasets of the European satellite Meteosat are now provided every 90 mins together with the quality indicator (QI) derived by the quality control of the Meteorological Product Extraction Facility (MPEF) at ...
Eclipse Anomalies in Atmospheric Motion Vectors Derived from Meteosat Imagery and Their Implications on Data Assimilation
Publisher: American Meteorological Society
Abstract: This study examines atmospheric motion vectors derived by tracking features in image sequences from Meteosat for anomalies during the second satellite eclipse period of 2001. During eclipse periods (March?April; ...
AMSU-A Land Surface Emissivity Estimation for Numerical Weather Prediction Assimilation Schemes
Publisher: American Meteorological Society
Abstract: This study describes the work performed at the European Centre for Medium-Range Weather Forecasts (ECMWF) to estimate the microwave land surface emissivities at Advanced Microwave Sounding Unit (AMSU)-A frequencies within ...
The Spatial Structure of Observation Errors in Atmospheric Motion Vectors from Geostationary Satellite Data
Publisher: American Meteorological Society
Abstract: This study investigates and quantifies in detail the spatial correlations of random errors in atmospheric motion vectors (AMVs) derived by tracking structures in imagery from geostationary satellites. A good specification ...
High Clouds over Oceans in the ECMWF 15- and 45-Yr Reanalyses
Publisher: American Meteorological Society
Abstract: The reanalysis programs of numerical weather prediction (NWP) centers provide global, comprehensive descriptions of the atmosphere and of the earth?s surface over long periods of time. The high realism of their representation ...
ECMWF Analyses and Forecasts of Stratospheric Winter Polar Vortex Breakup: September 2002 in the Southern Hemisphere and Related Events
Publisher: American Meteorological Society
Abstract: Breakup of the polar stratospheric vortex in the Northern Hemisphere is an event that is known to be predictable for up to a week or so ahead. This is illustrated using data from the 45-yr ECMWF Re-Analysis (ERA-40) for ...
Assimilation and Modeling of the Atmospheric Hydrological Cycle in the ECMWF Forecasting System
Publisher: American Meteorological Society
Abstract: Several new types of satellite instrument will provide improved measurements of Earth's hydrological cycle and the humidity of the atmosphere. In an effort to make the best possible use of these data, the modeling and ...
The Convective Precipitation Experiment (COPE): Investigating the Origins of Heavy Precipitation in the Southwestern United Kingdom
Publisher: American Meteorological Society
Abstract: he Convective Precipitation Experiment (COPE) was a joint U.K.?U.S. field campaign held during the summer of 2013 in the southwest peninsula of England, designed to study convective clouds that produce heavy rain leading ...