Trade Winds

Changes of the prevailing trade winds over the islands of Hawaii and the North Pacific

[1] Changes in the frequency and intensity of the prevailing northeast and east trade winds from 1973-2009 are analyzed from four land stations in the Hawaiian Islands. A nonparametric robust trend analysis indicates a downward trend in northeast trade wind frequency since 1973. At the Honolulu International Airport, northeast trade wind days usually occurred 291 days per year 37 years ago are ...

Radon-222 in the North Atlantic trade winds: its relationship to dust transport from Africa.

The concentration of radon-222 in air was measured during a flight from Miami to Barbados to Dakar and return; concentrations ranged from 1 to 55 picocuries per standard cubic meter of air and were highest in areas of dense haze, which were present along most of the flight path across the Atlantic Ocean. The haze is attributed to dust originating from the arid regions of western Africa. Radon-2...

Parker Winds Revisited: An Extension to Disk Winds

Parker Winds Revisited: An Extension to Disk Winds by Timothy R. Waters Dr. Daniel Proga, Examination Committe Chair Associate Professor of Physics & Astronomy University of Nevada, Las Vegas A simple 1D dynamical model of thermally driven disk winds is proposed, based on the results of recent, 2.5D axi-symmetric simulations. Our formulation of the disk wind problem is in the spirit of the orig...

Improvement of vertical winds

Protoneutron Star Winds

Neutrino-driven winds are thought to accompany the Kelvin-Helmholtz cooling phase of nascent protoneutron stars in the first seconds after a core-collapse supernova. These outflows are a likely candidate as the astrophysical site for rapid neutron-capture nucleosynthesis (the rprocess). In this chapter we review the physics of protoneutron star winds and assess their potential as a site for the...