et

rullpilv

1 substantive

EKI Combined Dictionary 2026

Last modified 12.08.2025

Meanings

madal pilvemoodustis, mis meenutab pikka maapinnaga rõhtsalt paiknevat toru või rulli

Translations

Usage examples
  • Saabuva äikesepilve serva ees liikus rullpilv ühes tugeva tuulepuhanguga.

Terminological databases

EKI terminibaas Esterm

ID 1147005 Last modified 12.08.2025
View dataset
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Domain atmosphere - climatology - meteorology - magnetospheremeteorology
  • väga harva esinev torukujuline horisontaalne arcus-pilv, mis on emapilvest (rünksajupilvest) täielikult eraldatud
    Good to know
    • Kui rullpilv tekib seoses rünksajupilvega, siis on selle põhjuseks laskuvad õhuvoolud, mille põrkel aluspinnaga võib tekkida õhulaine. Laineharjal tekibki rullpilv, mille üleminekuga võib kaasneda tugev tuulepuhang (pagi). Rullpilv võib tekkida ka iseseisvalt. Selle näiteks on Austraalia põhjaosas Carpentaria lahe kohal tekkiv ebatavaline ilmanähtus – „hommikuhiilgus“ (Morning Glory Cloud), mille tekkimine on seotud rannikualade ja seal tekkivate briisidega.
  • a low, horizontal tube-shaped arcus cloud associated with a thunderstorm gust front (or sometimes with a cold front)
    Good to know
    • Roll clouds are relatively rare; they are completely detached from the thunderstorm base or other cloud features, thus differentiating them from the more familiar shelf clouds. Roll clouds usually appear to be "rolling" about a horizontal axis, but should not be confused with funnel clouds.
Good to know
  • Roll clouds and shelf clouds are the two main types of arcus clouds.
Related
rullpilv
roll cloud

Word forms

Inflection Type 22i

rullpilv rullpilved
rullpilve rullpilvede
rullpilve rullpilvi ~ rullpilvesid

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