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Jet Stream Analysis and Forecast Errors Using GADS Aircraft Observations in the DAO, ECMWF, and NCEP Models
Publisher: American Meteorological Society
Abstract: Peak analyzed jet stream wind speeds are compared with independent aircraft observations over Canada and the continental United States. The results permit a study of the accuracy of analyzed jet streak strength for the ...
A Global Ocean Observing System for Measuring Sea Level Atmospheric Pressure: Effects and Impacts on Numerical Weather Prediction
Publisher: American Meteorological Society
Abstract: ince 1994 the U.S. Global Drifter Program (GDP) and its international partners cooperating within the Data Buoy Cooperation Panel (DBCP) of the World Meteorological Organization (WMO) and the United Nations Education, ...
Impact of Targeted Winter Storm Reconnaissance Dropwindsonde Data on Midlatitude Numerical Weather Predictions
Publisher: American Meteorological Society
Abstract: he impact of assimilating data from the 2011 Winter Storm Reconnaissance (WSR) program on numerical weather forecasts was assessed. Parallel sets of analyses and deterministic 120-h numerical forecasts were generated using ...
GNSS Radio Occultation Constellation Observing System Experiments
Publisher: American Meteorological Society
Abstract: bserving system experiments within the operational ECMWF data assimilation framework have been performed for summer 2008 when the largest recorded number of Global Navigation Satellite System (GNSS) radio occultation ...
Impacts of Assimilating AMMA Soundings on ECMWF Analyses and Forecasts
Publisher: American Meteorological Society
Abstract: The field experiment of the African Monsoon Multidisciplinary Analysis (AMMA) project during the 2006 wet monsoon season provided an unprecedented amount of radiosonde/dropsonde data over the West African region. This paper ...
Characteristics of Occasional Poor Medium-Range Weather Forecasts for Europe
Publisher: American Meteorological Society
Abstract: nge weather prediction has become more skillful over recent decades, but forecast centers still suffer from occasional very poor forecasts, which are often referred to as ?dropouts? or ?busts.? This study focuses on European ...
Lidar-Measured Wind Profiles: The Missing Link in the Global Observing System
Publisher: American Meteorological Society
Abstract: -dimensional global wind field is the most important remaining measurement needed to accurately assess the dynamics of the atmosphere. Wind information in the tropics, high latitudes, and stratosphere is particularly ...
The Concordiasi Field Experiment over Antarctica: First Results from Innovative Atmospheric Measurements
Publisher: American Meteorological Society