Thermal: Difference between revisions

Latest revision as of 10:58, 28 March 2024

Pertaining to temperature or heat.
A discrete buoyant element in which the buoyancy is confined to a limited volume of fluid.

See plume.
A relatively small-scale, rising current of air produced when the atmosphere is heated enough locally by the earth's surface to produce absolute instability in its lowest layers.
The use of this term is usually reserved to denote those currents either too small and/or too dry to produce convective clouds; thus, thermals are a common source of low-level clear-air turbulence. It is generally believed that the term originated in glider flying, and it is still very commonly used in this reference.

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+{{Term
+|Display title=thermal
-{{TermHeader}}
+|Definitions={{Definition
-{{TermSearch}}
+|Num=1
+|Meaning=#Pertaining to [[temperature]] or [[heat]].
-<div class="termentry">
+|Explanation=#A discrete buoyant element in which the [[buoyancy]] is confined to a limited volume of fluid.<br/> <br/>''See'' [[plume]].<br/>
-  <div class="term">
+#A relatively small-scale, rising current of air produced when the [[atmosphere]] is heated enough  locally by the earth's surface to produce [[absolute instability]] in its lowest [[layers]].<br/> The use of this term is usually reserved to denote those currents either too small and/or too  dry to produce convective clouds; thus, thermals are a common [[source]] of low-level [[clear-air turbulence|clear-air  turbulence]]. It is generally believed that the term originated in glider flying, and it is still very  commonly used in this reference.
-== thermal ==
+}}
-  </div>
+}}
-#<div class="definition"><div class="short_definition">Pertaining to [[temperature]] or [[heat]].</div><br/> </div>
-#<div class="definition"><div class="short_definition">A discrete buoyant element in which the [[buoyancy]] is confined to a limited volume of fluid.</div><br/> <div class="paragraph"><br/>''See'' [[plume]].</div><br/> </div>
-#<div class="definition"><div class="short_definition">A relatively small-scale, rising current of air produced when the [[atmosphere]] is heated enough  locally by the earth's surface to produce [[absolute instability]] in its lowest [[layers]].</div><br/> <div class="paragraph">The use of this term is usually reserved to denote those currents either too small and/or too  dry to produce convective clouds; thus, thermals are a common [[source]] of low-level [[clear-air turbulence|clear-air  turbulence]]. It is generally believed that the term originated in glider flying, and it is still very  commonly used in this reference.</div><br/> </div>
-</div>
-{{TermIndex}}
-{{TermFooter}}
-[[Category:Terms_T]]