Tropical wave - Wikipedia, the free encyclopedia
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Tropical waves , or easterly waves , also known as African easterly waves in the Atlantic region, are a type of atmospheric trough, an elongated area of relatively low air pressure, oriented nort...
en.wikipedia.org/wiki/Tropical_wave
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Riehl (1945) helped to substantiate that these disturbances, now known as African easterly waves, had their origins over North Africa. ... While only about 60% of the Atlantic tropical storms and minor hurricanes ( Saffir-Simpson Scale categories 1 and 2) originate from easterly waves, nearly 85% of the intense (or...
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www.aoml.noaa.gov/hrd/tcfaq/A4.html
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Hurricane FAQ; Atl. TC Outlook; Storm Shutters; Weather Room; Current Weather; Hurr. Awareness ; ... ; OAR; ; NOAA Aircraft Operations Center ... A4) What is an easterly wave and what causes them?
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www.aoml.noaa.gov/hrd/tcfaq/tcfaqA.html
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Tropical weather is often initiated by easterly waves--> ... have wavelengths of about 2500 km ... hurricanes are often initiated by easterly waves.... here is the visual evidence...
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apollo.lsc.vsc.edu/classes/met130/notes/chapter15/east_...
apollo.lsc.vsc.edu/classes/met130/notes/chapter15/east_waves.html
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Easterly waves are especially frequent over the tropical Atlantic and the western Pacific Ocean. Satellite imagery provides the best view of an easterly wave as the wave is indicated by its line or cluster of cumulus clouds.
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www.weatheronline.co.uk/reports/wxfacts/Easterly-wave--...
www.weatheronline.co.uk/reports/wxfacts/Easterly-wave---the-Hurricanes-cradle.htm
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Easterly waves are important sources of synoptic variability over the Atlantic, contributing more than half of the meridional wind perturbation in the 3-9 day range. Interannual variability is also significant, and various modes of interannual variability are identified.
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ams.confex.com/ams/Annual2005/techprogram/paper_83557.h...
ams.confex.com/ams/Annual2005/techprogram/paper_83557.htm
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CiteSeerX - Document Details (Isaac Councill, Lee Giles): A significant sign reversal in the meridional potential vorticity gradient was found during the summer of 1991 on the 310-K isentropic surface (near 700 mb) over the Caribbean Sea. ... 1 Tropical storm formation from easterly waves: A criterion for development...
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citeseer.ist.psu.edu/258535.html
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Outgoing longwave radiation (OLR) and low-level wind fields in the Atlantic and Pacific intertropical convergence zone (ITCZ) are dominated by variability on synoptic time scales primarily associated with easterly waves during boreal summer and fall.
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ams.allenpress.com/perlserv/?request=get-abstract&doi=1...
ams.allenpress.com/perlserv/?request=get-abstract&doi=10.1175%2F2007JAS2341.1
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A regional coupled climate model is configured for the tropical Atlantic to explore the role of synoptic-scale African easterly waves (AEWs) on the simulation of mean precipitation in the marine intertropical convergence zone (ITCZ).
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ams.allenpress.com/perlserv/?request=get-abstract&doi=1...
ams.allenpress.com/perlserv/?request=get-abstract&doi=10.1175%2F2007JCLI1906.1
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