A5101885677- Climate variability and models
- Meteorological Phenomena and Simulations
- Tropical and Extratropical Cyclones Research
- Aerodynamics and Acoustics in Jet Flows
- Fluid Dynamics and Turbulent Flows
- Ocean Waves and Remote Sensing
- Precipitation Measurement and Analysis
- Computational Fluid Dynamics and Aerodynamics
- Aerodynamics and Fluid Dynamics Research
- Wind and Air Flow Studies
- Material Selection and Properties
- Atmospheric and Environmental Gas Dynamics
- Advanced Aircraft Design and Technologies
- Plasma and Flow Control in Aerodynamics
- Material Properties and Applications
- Gas Dynamics and Kinetic Theory
- Monetary Policy and Economic Impact
- Atmospheric chemistry and aerosols
- Fluid dynamics and aerodynamics studies
- Environmental Education and Sustainability
- Atmospheric Ozone and Climate
- Acoustic Wave Phenomena Research
- Climate change and permafrost
- Marine and Offshore Engineering Studies
- Aeroelasticity and Vibration Control
Florida State University
2003-2018
California Institute of Technology
2009
NOAA Air Resources Laboratory
1996
Netherlands Aerospace Centre
1972-1985
Stichting Artsenlaboratorium en Trombosedienst
1980
Hudson Institute
1978-1979
Goodyear (United States)
1959
Solomon R. Guggenheim Museum
1946
In 2006, NASA led a field campaign to investigate the factors that control fate of African easterly waves (AEWs) moving westward into tropical Atlantic Ocean. Aircraft and surface-based equipment were based on Cape Verde's islands, helping fill some data void between Africa Caribbean. Taking advantage international Monsoon Multidisciplinary Analysis (AMMA) program over continent, NASA-AMMA (NAMMA) used enhanced upstream data, whereas NOAA aircraft farther west in studied several storms...
Abstract A new comprehensive surface temperature data set for India is used to document changes in Indian over seven decades, order examine the patterns and possible effects of global warming. The subdivided into pre-monsoon, monsoon, post-monsoon categories study each these periods. When decade means maximum, minimum daily mean 2000s are compared those 1950s, a consistent pattern warming found northwestern southern India, cooling seen broad zone anchored northeastern extending southwestward...
Abstract This paper provides new information on the low-level (850 hPa) structure and behavior of African easterly waves (AEWs) relates this to previous studies. Individual AEWs that occurred during June–September 2001 are studied by a synoptic approach employs Hovmöller diagrams, wave track maps, case The focus is two AEW regimes in lower troposphere over North Africa: dry regime north jet (AEJ) coincident with surface position monsoon trough near 20°N, wet south near-equatorial rainbelt...
Abstract This paper provides an understanding of essential differences between developing and nondeveloping African easterly waves, which was a major goal NAMMA, NASA’s field program in the eastern Atlantic, functioned as extension Monsoon Multidisciplinary Analysis (AMMA) during 2006. Three NAMMA waves are studied detail using FNL analysis: wave 2, developed into Tropical Storm Debby; 7, Hurricane Helene; 4, did not develop within domain. Diagnostic calculations performed on analyzed fields...
Trends for the 21‐year period 1973–1993 of temperatures at surface and in troposphere were analyzed from radiosonde observations eight north‐latitude regions. The seasonal consistency tropospheric trends temperature evening‐morning difference was examined these In most seasons positive Eurasia western N. America but negative central eastern Canada. regions with sizable statistically significant usually had up to 500 mb sometimes 300 mb. An exception Asia, where strong warming confined below...
This work examines the feasibility of weather and seasonal climate predictions for South America using multi-model synthetic superensemble approach climate, conventional numerical prediction, both developed at Florida State University (FSU). The effect on forecasts number models used in is investigated. It shown that prediction can reduce errors over prediction. For a suite 13 used. forecast lead-time 1 month forecasts, which consist precipitation surface temperature forecasts. ensemble...
Abstract A superensemble forecast that consists of six operational general circulation models is tested to simulate weather parameters over the equatorial South‐East Asian region. The technique, developed at Florida State University, a unique ensemble has proved be one better prognosticators for forecasting. In this paper, root mean square errors precipitation case severe tropical rainfall event during winter monsoon 2001 were smaller than other global member or used, indicating skilled...
where A is a constant given as part of the experimental data defining flow. Thus origin our x coordinate system at fictitious stream wise station defined implicitly by Eq. (6). With Eqs. (5) and (6) it easy to develop from (4)
Abstract This paper defines a mechanism for the genesis of tropical cyclones from African easterly waves (AEWs) over eastern Atlantic, so-called Cape Verde storms. Convective “superbursts” produce strong diabatic heating, which then strengthens jet (AEJ), leading to enhanced barotropic energy conversions, occur at critical developmental stages system. Diabatic heating is calculated using Ertel isentropic potential vorticity (IPV) equation, while conversions are determined equations first...
This paper deals with seasonal climate forecasting using as many 13 coupled ocean—atmosphere models. An analysis of the individual model, multimodel ensemble, and FSU synthetic superensemble (FSUSSE) forecasts was performed for monthly precipitation, sea surface temperature (SST) air over Euro-Mediterranean region including land areas Europe, North Africa Near East, during period 1989–2001. In FSUSSE methodology, are obtained by a weighted combination model based on training period. The set...
Many avenues of research are currently being tried for understanding and predicting hurricane intensity forecasts. We have listed several such pursued by the community. This article addresses use high-resolution aircraft reconnaissance datasets used daily data assimilation over three years histories that cover rapid intensification cases. show a number dynamical thermodynamical parameters, derived from these datasets, which seem to hold promise future in short range statistical forecasts on...