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Solar cycle: History, Observational history & Phenomena

The Solar cycle, also known as the solar magnetic activity cycle, sunspot cycle, or Schwabe cycle, is a periodic 11-year change in the Sun's activity measured in terms of variations in the number of observed sunspots on the Sun's surface. Over the period of a solar cycle, levels of solar radiation and ejection of solar material, the number and size of…

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Solar cycle topic overview

The analysis highlights History, Observational history and Phenomena as prominent areas in the source structure around Solar cycle.

Related topics
141
Source areas
8
Connected nodes
149
Extracted relationships
141
Related term clusters
43
Bridge connections
149

What this topic covers Research coverage

Source areas are shown by the number of related topics found in each part of the analysis. Use smaller areas too: they can reveal specialized angles and content gaps.

Overview · 78 topics
Observational history · 26 topics
Patterns · 11 topics
Phenomena · 11 topics
General references · 7 topics
Cycle history · 3 topics
Solar dynamo · 3 topics
Speculated influence of the planets · 2 topics

Smaller areas are not necessarily less important. They contain fewer connections in this analysis and can be useful for finding specialized angles or coverage gaps.

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Explore all related topics Closing gaps

Browse the complete topic structure, not only the most central items. Less prominent entities and concepts can reveal missing angles, specialized context and useful research gaps. Each item opens a new analysis centered on that subject.

Overview

Observational history

Cycle history

Phenomena

Patterns

Solar dynamo

Speculated influence of the planets

General references

For the semantics nerds

You can skip this section if you’re here for content ideas and keyword inspiration.

Advanced semantic analysis

How Solar cycle connects Entity context

The extracted context around Solar cycle shows recurring relationship patterns in the source. For example, Solar cycle → Astrophysical Journal, Bibcode, David, December, Dziembowski, Foukal, Goode, Grand Phases On The, Hathaway, Hudson, Ilya, ISBN, Living Reviews, McGraw Hill, Nature, New York, Peter, PMC, PMID, Richard Another extracted example is Solar cycle → Antarctica, Brückner, CH4, CO2, Damon, Earth's, Egeson, EPICA, Europe, European Project, Hallstatt, Heinrich-Bond, Ice Coring, Lockyer, Mid-Late Pleistocene, Periodicity, Pleistocene, Sonett, Sun-related, The Hallstatt. Use these groups to spot repeated connection types before inspecting the individual relationships.

Solar cycle

Top relations

related to General references · 33
Solar cycle → Astrophysical Journal, Bibcode, David, December, Dziembowski, Foukal, Goode, Grand Phases On The, Hathaway, Hudson, Ilya, ISBN, Living Reviews, McGraw Hill, Nature, New York, Peter, PMC, PMID, Richard
related to Other hypothesized cycles · 20
Solar cycle → Antarctica, Brückner, CH4, CO2, Damon, Earth's, Egeson, EPICA, Europe, European Project, Hallstatt, Heinrich-Bond, Ice Coring, Lockyer, Mid-Late Pleistocene, Periodicity, Pleistocene, Sonett, Sun-related, The Hallstatt
related to history · 19
Solar cycle → Almost, Boreal, Christian Horrebow, Copenhagen, Denmark, Early Permian, February, Fossil, Horrebow, Neoproterozoic, Rudolf Wolf, Rundetaarn, Samuel Heinrich Schwabe, Schwabe, Schwabe's, Sun, Sunspot, The Sun, Wolf
related to Solar flares and coronal mass ejections · 11
Solar cycle → CME, Complex, Consequently, Dec, December, Earth's, Flares, Large, X-class, X-ray, X9
related to Speculated influence of the planets · 11
Solar cycle → Additional, Cionco, Earth's, Jupiter, March, Modern, None, Sun, Sun's, The Jupiter Effect, Venus
related to Sunspots · 8
Solar cycle → Earth's, European Space Agency, Luminosity, MDI, NASA, Satellite, SOHO, The Sun's
related to Gleissberg cycle · 5
Solar cycle → Ilya, Sami Solanki, The Gleissberg, Usoskin, Wolfgang Gleißberg
related to Solar dynamo · 5
Solar cycle → Babcock, Convection, Hale's, Leighton, Sun's
related to Faculae and plage · 3
Solar cycle → Ca II, Faculae, Plage
related to Waldmeier effect · 3
Solar cycle → Max Waldmeier, The Waldmeier, Therefore

Important terminology

Use these terms to understand the vocabulary surrounding the topic, not as a checklist for keyword stuffing.

Important terminology

solar cycle magnetic sunspots activity field cycles years maximum sunspot sun flux also minimum variations climate earth's surface cosmic irradiance

Solar cycle relationships Subject–Predicate–Object triples

TTTA extracted 141 structured relationships around Solar cycle. Examples in this analysis include Solar cycle → is a → spatiotemporal magnetic process unfolding over the Sun as a whole and aurora but was not clearly identified until 1843 → instance of → completing what is known as a Hale cycle.This cycle has been observed for centuries by changes in the Sun's appearance and by terrestrial phenomena. The table shows each extracted connection, where it came from and its confidence.

SubjectPredicateObjectConfidenceSrc
Solar cycleis aspatiotemporal magnetic process unfolding over the Sun as a whole0.90text
aurora but was not clearly identified until 1843instance ofcompleting what is known as a Hale cycle.This cycle has been observed for centuries by changes in the Sun's appearance and by terrestrial phenomena0.80text
ice sheetsinstance ofassociated centennial variations in magnetic fields in the corona and heliosphere have been detected using carbon-14 and beryllium-10 cosmogenic isotopes stored in terrestrial r…0.80text
tree ringsinstance ofassociated centennial variations in magnetic fields in the corona and heliosphere have been detected using carbon-14 and beryllium-10 cosmogenic isotopes stored in terrestrial r…0.80text
by using historic observations of geomagnetic storm activityinstance ofassociated centennial variations in magnetic fields in the corona and heliosphere have been detected using carbon-14 and beryllium-10 cosmogenic isotopes stored in terrestrial r…0.80text
which bridge the time gap between the end of the usable cosmogenic isotope datainstance ofassociated centennial variations in magnetic fields in the corona and heliosphere have been detected using carbon-14 and beryllium-10 cosmogenic isotopes stored in terrestrial r…0.80text
the start of modern satellite data.These variations have been successfully reproduced using models that employ magnetic flux continuity equationsinstance ofassociated centennial variations in magnetic fields in the corona and heliosphere have been detected using carbon-14 and beryllium-10 cosmogenic isotopes stored in terrestrial r…0.80text
observed sunspot numbers to quantify the emergence of magnetic flux from the top of the solar atmosphereinstance ofassociated centennial variations in magnetic fields in the corona and heliosphere have been detected using carbon-14 and beryllium-10 cosmogenic isotopes stored in terrestrial r…0.80text
into the heliosphereinstance ofassociated centennial variations in magnetic fields in the corona and heliosphere have been detected using carbon-14 and beryllium-10 cosmogenic isotopes stored in terrestrial r…0.80text
showing that sunspot observationsinstance ofassociated centennial variations in magnetic fields in the corona and heliosphere have been detected using carbon-14 and beryllium-10 cosmogenic isotopes stored in terrestrial r…0.80text
geomagnetic activityinstance ofassociated centennial variations in magnetic fields in the corona and heliosphere have been detected using carbon-14 and beryllium-10 cosmogenic isotopes stored in terrestrial r…0.80text
cosmogenic isotopes offer a convergent understanding of solar activity variations.Suess cycleThe Suess cycleinstance ofassociated centennial variations in magnetic fields in the corona and heliosphere have been detected using carbon-14 and beryllium-10 cosmogenic isotopes stored in terrestrial r…0.80text

Related concept clusters Related term clusters

The concept neighborhoods around Solar cycle bring nearby vocabulary together. In this analysis, examples include Solar, Magnetic and Maximum. Use the clusters to find adjacent concepts and terminology that may deserve separate research.

  • Solar cycle
    • Solar
    • Magnetic
    • Maximum
    • Flux
    • Sunspots
    • Minimum
    • Activity
    • Field
    • Dynamo
    • One
    • Climate
    • Irradiance
  • solar cycle
    • Solar
    • Magnetic
    • Sunspots
    • Years
    • Maximum
    • Sunspot
    • Cycles
    • Flux
    • Dynamo
    • Minimum
    • Activity
    • Field
  • sunspots
    • Surface
    • Average
    • Field
    • Minimum
    • Toroidal
    • Maximum
    • Period
    • Coronal
    • Sun
    • Dynamo
    • Observations
    • Radiation
  • sun's surface
    • Earth's
    • Flux
    • Field
    • Dynamo
    • Sun
    • Ultraviolet
    • Surface
    • Coronal
    • Space
    • Cosmic
    • Variations
    • Sunspot
  • solar radiation
    • Flux
    • Maximum
    • Cosmic
    • Sunspots
    • Atmosphere
    • Ultraviolet
    • Minimum
    • Field
    • Space
    • Earth's
    • Dynamo
    • Climate
  • solar flares
    • Maximum
    • Flux
    • Sunspots
    • Minimum
    • Field
    • Dynamo
    • Climate
    • Irradiance
    • Years
    • Space
    • Cosmic
    • Surface
  • period of minimum activity
    • Maximum
    • Years
    • Solar
    • Also
    • Magnetic
    • Period
    • One
    • Proposed
    • Sunspots
    • Variations
    • Cycle
    • Toroidal
  • solar maximum
    • Minimum
    • Maximum
    • Solar
    • Flux
    • Number
    • Sunspot
    • Average
    • Sunspots
    • Field
    • Toroidal
    • Dynamo
    • Climate

Connections between topic areas Semantic bridges

For Solar cycle, one of the stronger structural bridges in this analysis connects Solar cycle with Overview. Bridges highlight paths between different parts of the map and can reveal research angles that are easy to miss in a flat list.

Min side: 3
Solar cycle — Overview · splits 71 ⟂ 79
Solar cycle — Observational history · splits 123 ⟂ 27
Solar cycle — Phenomena · splits 138 ⟂ 12
Solar cycle — Patterns · splits 138 ⟂ 12
Solar cycle — General references · splits 142 ⟂ 8
Solar cycle — Cycle history · splits 146 ⟂ 4
Solar cycle — Solar dynamo · splits 146 ⟂ 4
Solar cycle — Speculated influence of the planets · splits 147 ⟂ 3

Map overview Semantic statistics

Solar cycle

Nodes150
Edges149
Triples141
Avg. degree1.99
Density0.013333
Components1

Source & methodology

TTTA analyzes the structure around Solar cycle to surface related topics, entities, relationships, concept neighborhoods and bridge connections. Use the map to explore areas such as History, Observational history & Phenomena, including less central topics that may reveal useful research gaps. Automatically extracted connections are research leads rather than rewritten encyclopedia content.

Source: Wikipedia — Solar cycle · EN edition · Analysis: TopicsToTalkAbout

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