Abstract: Calculations and measurements show that the transmissivity parameter t is an increasing function of the optical air mass m. An equation for estimating t for several model atmospheres is presented, and the direct beam flux ...

Abstract: Dual-wavelength ratio (DWR) techniques offer the prospect of producing high-resolution mapping of cloud microphysical properties, including retrievals of cloud liquid water content (LWC) from reflectivity measured by ...

Abstract: Changes in tropical cyclone activity are among the more potentially consequential results of global climate change, and it is therefore of considerable interest to understand how anthropogenic climate change may affect ...

Abstract: eedbacks between the land surface and the atmosphere, manifested as mass and energy fluxes, are strongly correlated with soil moisture, making soil moisture an important factor in land?atmosphere interactions. It is shown ...

Abstract: Grid-point data on the MSL pressure and 500 mb height fields over western North America are filtered with the eigenvectors of their covariance matrix. The filtering allows virtually all the information in 134 grid-point ...

Abstract: A statistical correlation between cloud thickness and brightness is shown by regression analyses using the least-square method. Cloud thicknesses are obtained from two sources; pilot reports and the three-dimensional ...

Abstract: data mining and statistical learning method known as a random forest (RF) is employed to generate 2-h forecasts of the likelihood for initiation of mesoscale convective systems (MCS-I). The RF technique uses an ensemble ...

Abstract: This study investigates the flow physics on microvortex generators (MVGs) in order to improve their performance in turbulent boundary layers (TBLs). TBLs can be a challenging environment for MVGs because of the streamwise ...

Abstract: o has flown in a commercial aircraft is familiar with turbulence. Unexpected encounters with turbulence pose a safety risk to airline passengers and crew, can occasionally damage aircraft, and indirectly increase the cost ...

Abstract: High temperature (>300°F, 149°C) water has been found to greatly accelerate fatigue crack growth rates in carbon and low-alloy steels. Current ASME Code fatigue design curves are ...