Zonal index: Difference between revisions
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<div class="definition"><div class="short_definition">A measure of strength of the [[middle-latitude westerlies]], usually expressed as the horizontal [[pressure]] difference between 35& | <div class="definition"><div class="short_definition">A measure of strength of the [[middle-latitude westerlies]], usually expressed as the horizontal [[pressure]] difference between 35° and 55°N latitude, or as the corresponding [[geostrophic wind|geostrophic wind]].</div><br/> <div class="paragraph"><br/>''See'' [[circulation index]], [[high index]], [[low index]]; <br/>''compare'' [[polar-easterlies index]], [[subtropical easterlies index|subtropical- easterlies index]], [[temperate-westerlies index]].</div><br/> </div> | ||
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Latest revision as of 18:17, 25 April 2012
zonal index
A measure of strength of the middle-latitude westerlies, usually expressed as the horizontal pressure difference between 35° and 55°N latitude, or as the corresponding geostrophic wind.
See circulation index, high index, low index;
compare polar-easterlies index, subtropical- easterlies index, temperate-westerlies index.