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- Supergranulation abstract "Supergranulation is a particular pattern of convection cells on the Sun's surface called supergranules. It was discovered in the 1950s by A.B.Hart using Doppler velocity measurements showing horizontal flows on the photosphere (flow speed about 300 to 500 m/s, a tenth of that in the smaller granules). Later work (1960s) by Leighton, Noyes and Simon established a typical size of about 30000 km for supergranules with a lifetime of about 24 hours.Supergranulation has long been interpreted as a specific convection scale, but its origin is not precisely known. Although the presence of granules in the solar photosphere is a well-documented phenomenon, there is still much debate on the true nature or even the existence of higher-order granulation patterns. Some authors suggest the existence of three distinct scales of organization: granulation (with typical diameters of 150–2500 km), mesogranulation (5000–10000 km) and supergranulation (over 20000 km). Granules are typically considered as being signs of convective cells forming a hierarchic structure: supergranules would be thus fragmented in their uppermost layers into smaller mesogranules, which in turn would split into even smaller granules at their surface. The solar material would flow downward in dark "lanes" separating granules with the divisions between supergranules being the biggest concentrations of cold gas, analogous to rivers connecting smaller tributaries. It should however be stressed that this picture is highly speculative and might turn out to be false in the light of future discoveries.".
- Supergranulation wikiPageExternalLink i_screenimage_32728.jpg.
- Supergranulation wikiPageExternalLink lrsp-2010-2.
- Supergranulation wikiPageExternalLink 0102wave.html.
- Supergranulation wikiPageExternalLink 030102-6.html.
- Supergranulation wikiPageID "4905420".
- Supergranulation wikiPageRevisionID "546653285".
- Supergranulation hasPhotoCollection Supergranulation.
- Supergranulation subject Category:Solar_phenomena.
- Supergranulation type Phenomenon100034213.
- Supergranulation type PhysicalEntity100001930.
- Supergranulation type Process100029677.
- Supergranulation type SolarPhenomena.
- Supergranulation comment "Supergranulation is a particular pattern of convection cells on the Sun's surface called supergranules. It was discovered in the 1950s by A.B.Hart using Doppler velocity measurements showing horizontal flows on the photosphere (flow speed about 300 to 500 m/s, a tenth of that in the smaller granules).".
- Supergranulation label "Supergranulacja".
- Supergranulation label "Supergranulation".
- Supergranulation label "Supergranulation".
- Supergranulation label "Supergranulazione".
- Supergranulation label "Supergranulação".
- Supergranulation label "Супергрануляция".
- Supergranulation label "الحبيبات الشمسية الفائقة".
- Supergranulation label "超米粒組織".
- Supergranulation label "超粒状斑".
- Supergranulation sameAs Supergranulace.
- Supergranulation sameAs Supergranulation.
- Supergranulation sameAs Supergranulazione.
- Supergranulation sameAs 超粒状斑.
- Supergranulation sameAs 초대형쌀알조직.
- Supergranulation sameAs Supergranulacja.
- Supergranulation sameAs Supergranulação.
- Supergranulation sameAs m.0cth5_.
- Supergranulation sameAs Q29010.
- Supergranulation sameAs Q29010.
- Supergranulation sameAs Supergranulation.
- Supergranulation wasDerivedFrom Supergranulation?oldid=546653285.
- Supergranulation isPrimaryTopicOf Supergranulation.
