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Now showing items 31-40 of 75
MINIMIZING REANALYSIS JUMPS DUE TO NEW OBSERVING SYSTEMS
(2014)
A major problem with reanalyses has been the presence of jumps in the climatology associated with changes in the observing system. Such changes are common in reanalysis products. These jumps became especially obvious when ...
Evaluation of NCEP GFS cloud properties using satellite retrievals and ground-based measurements
(2012)
Cloud properties and their vertical structure are important for meteorological studies due to their impact on both the Earth's radiation budget and adiabatic heating. Examination of bulk cloud properties and vertical ...
Moisture Flux Estimates Derived from EOS Aqua Data in the Arctic
(2013)
The Arctic sea ice acts as a barrier between the ocean and atmosphere inhibiting the exchange of heat, momentum, and moisture. Recently, the ice pack has been decreasing in area and concentration. This diminished sea ice ...
Strategies for Coupling Global and Limited-Area Ensemble Kalman Filter Assimilation
(2011)
This thesis compares the forecast performance of four strategies for coupling
global and limited area data assimilation: three strategies propagate information
from the global to the limited area process, while the fourth ...
Towards Understanding Key Processes Affecting Heat and Salinity Balance in the Global Ocean
(2011)
Ocean heat content is compared among nine analyses of global ocean temperature during 1960-2002. Two are independent of numerical modeling, and the rest rely on data assimilation, which utilizes an ocean general circulation ...
RETRIEVAL OF ICE CLOUD PARAMETERS USING DMSP SPECIAL SENSOR MICROWAVE IMAGER/SOUNDER
(2010)
Clouds exert a profound influence on both the water balance of the atmosphere and the earth's radiation budget (Stephens 2005; Stephens and Kummerow 2007). Among the global distribution, 30% of them are ice clouds (Riedi ...
The Climate Impact of the Messinian Salinity Crisis
(2010)
This study uses an atmospheric general circulation model to examine the regional and global climate response to the Messinian Salinity Crisis (MSC) roughly 6 Ma. During this time, the tectonic collision of the African and ...
Identification and Quantification of Regional Aerosol Trends and Impact on Clouds over the North Atlantic Ocean
(2017)
Aerosols and clouds contribute to atmospheric variability and Earth’s radiative balance across local, regional, and global scales. Originating from both natural and anthropogenic sources, aerosols can cause adverse health ...
EXAMINATION OF THE PHOTOCHEMISTRY AND MESOSCALE METEOROLOGY ASSOCIATED WITH POOR AIR QUALITY IN THE U.S.
(2018)
Mesoscale meteorological processes including advection, vertical mixing, thermally-direct circulations (sea/bay breezes) combined with chemical processes and deposition dominate boundary-layer ozone (O3). While bay breezes ...
APPLICATIONS OF ENSEMBLE FORECAST SENSITIVITY TO OBSERVATIONS FOR IMPROVING NUMERICAL WEATHER PREDICTION
(2018)
Massive amounts of observations are assimilated every day into modern Numerical Weather Prediction (NWP) systems, and more are being deployed. The large volume of data prevents thorough monitoring and screening (QC) the ...