supergranulation cell: meaning, definition, pronunciation and examples
Very LowTechnical / Scientific
Quick answer
What does “supergranulation cell” mean?
A large-scale convection cell in the Sun's photosphere, forming a network of broad, gentle upflows surrounded by narrow downflows, typically about 30,000 km across.
Audio
Pronunciation
Definition
Meaning and Definition
A large-scale convection cell in the Sun's photosphere, forming a network of broad, gentle upflows surrounded by narrow downflows, typically about 30,000 km across.
In solar physics, a persistent pattern of plasma flow on the solar surface, part of the Sun's larger-scale convective structure above the smaller granules. It influences magnetic field distribution and solar activity.
Dialectal Variation
British vs American Usage
Differences
No significant spelling or usage differences. The term is identical in both dialects within the scientific community.
Connotations
Purely technical with no dialectal connotations.
Frequency
Extremely rare outside astrophysics literature. Identical frequency in UK and US academic contexts.
Grammar
How to Use “supergranulation cell” in a Sentence
The supergranulation cell [verb: exhibits, shows, has] [property].Magnetic fields accumulate at the [boundary/edge] of the supergranulation cell.Vocabulary
Collocations
Examples
Examples of “supergranulation cell” in a Sentence
verb
British English
- The plasma supergranulates across vast distances.
- The surface appears to be supergranulating.
American English
- The plasma supergranulates across vast distances.
- The surface appears to be supergranulating.
adverb
British English
- The magnetic field was distributed supergranularly.
- The material flowed supergranularly outward.
American English
- The magnetic field was distributed supergranularly.
- The material flowed supergranularly outward.
adjective
British English
- The supergranular flow was measured.
- Supergranular network evolution is slow.
American English
- The supergranular flow was measured.
- Supergranular network evolution is slow.
Usage
Meaning in Context
Business
Not used.
Academic
Used exclusively in astrophysics, heliophysics, and solar physics research papers and textbooks.
Everyday
Never used.
Technical
The primary context. Describes a specific structure in solar observations and models.
Vocabulary
Synonyms of “supergranulation cell”
Strong
Neutral
Weak
Vocabulary
Antonyms of “supergranulation cell”
Watch out
Common Mistakes When Using “supergranulation cell”
- Misspelling as 'supergranualation' or 'supergranulation sell'.
- Using it as a general term for any large cell.
- Confusing it with 'granulation' (the smaller-scale pattern).
FAQ
Frequently Asked Questions
No. Granules are small, short-lived convection cells about 1,000 km across. Supergranulation cells are about 30 times larger and longer-lived.
Not directly. They are detected by measuring the Doppler shift of spectral lines to track the horizontal flow of plasma on the solar surface.
They play a key role in transporting heat and advecting magnetic fields, influencing the Sun's magnetic network and possibly the solar cycle.
It is theorized that other Sun-like stars likely have similar large-scale convection, but directly observing them with current technology is extremely challenging.
A large-scale convection cell in the Sun's photosphere, forming a network of broad, gentle upflows surrounded by narrow downflows, typically about 30,000 km across.
Supergranulation cell is usually technical / scientific in register.
Supergranulation cell: in British English it is pronounced /ˌsuːpəˌɡrænjʊˈleɪʃən sel/, and in American English it is pronounced /ˌsupərˌɡrænjəˈleɪʃən sɛl/. Tap the audio buttons above to hear it.
Phrases
Idioms & Phrases
- “[No common idioms exist for this highly technical term]”
Learning
Memory Aids
Mnemonic
Think 'SUPER' (large) + 'GRANULATION' (grainy pattern on the Sun) + 'CELL' (a single unit) = a single large unit in the Sun's grainy surface pattern.
Conceptual Metaphor
A CELL as a functional unit (like a biological cell or a prison cell), but on a gigantic solar scale. The Sun's surface is imagined as a honeycomb or network of these giant cells.
Practice
Quiz
What is a 'supergranulation cell' primarily associated with?