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An Increase in the Number of Tornado Reports in Brazil
Publisher: American Meteorological Society
Abstract: his paper presents the development of tornado reports in Brazil since the middle of the twentieth century, both for the country as a whole and for the five regions of Brazil: the south, southeast, central-west, northeast, ...
Unsaturated Downdraft Thermodynamics in Cumulonimbus
Publisher: American Meteorological Society
Abstract: The thermodynamic structure of unsaturated downdrafts driven by the evaporation of falling rain can be parameterized using an evaporation pressure scale related to downdraft speed, rain rate and raindrop population. The ...
A Linear Spectral Model of Tropical Mesoscale Systems: Sensitivity Studies
Publisher: American Meteorological Society
Abstract: A revised version Of Raymond's wave-CISK model is used to study the propagation of mesoscale modes. The sensitivity of unstable modes to variations in basic state stability and wind show (characteristics of the eastern ...
Convective Circulations Induced by Surface Heterogeneities
Publisher: American Meteorological Society
Abstract: A simple theory for convective circulations induced by surface heterogeneities is proposed. The theory is based on the thermodynamics of heat engines and provides a simple physical explanation for the general characteristics ...
Environmental Conditions Associated with Amazonian Squall Lines: A Case Study
Publisher: American Meteorological Society
Abstract: The environmental conditions associated with squall lines (SL) that were observed during the period of 13 April?13 May 1987 (GTE/ABLE-2B) originating at the northern coast of South America and propagating over the Amazon ...
Can the Deforestation Breeze Change the Rainfall in Amazonia? A Case Study for the BR-163 Highway Region
Publisher: American Meteorological Society
Abstract: The authors simulated the effects of Amazonian mesoscale deforestation in the boundary layer and in rainfall with the Brazilian Regional Atmospheric Modeling System (BRAMS) model. They found that both the area and shape ...
Fracture Characterization of Human Cortical Bone Under Mode I Loading
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A miniaturized version of the double cantilever beam (DCB) test is used to determine the fracture energy in human cortical bone under pure mode I loading. An equivalent crack length based datareduction scheme is used with ...
The Chuva Project: How Does Convection Vary across Brazil?
Publisher: American Meteorological Society
Abstract: aning ?rain? in Portuguese, is the acronym for the Cloud Processes of the Main Precipitation Systems in Brazil: A Contribution to Cloud-Resolving Modeling and to the Global Precipitation Measurement (GPM). The CHUVA project ...
Building the Next Generation of Climate Modelers: Scale-Aware Physics Parameterization and the “Grey Zone” Challenge
Publisher: American Meteorological Society