關於 solar cycle ，我們在網路上蒐集到這些相關的討論、資訊與評價

#11. The Sun Could Reach 'Solar Maximum' Just At The Right Time

The Sun has a cycle lasting roughly 11 years during which its activity is tracked by counting how many sunspots are counted by solar scientists.

#12. The Sun and Climate - USGS.gov

The best known and documented solar cycle is the 11-year sunspot cycle. (Schwabe Cycle; fig. 1), during which the number of dark blotches (sunspots).

#13. Lessons learned from predictions of Solar Cycle 24

The predictions are needed to anticipate the space weather effects on space missions that can last two 11-year sunspot cycles. These predictions ...

#14. The Sun and Solar Activity - Solar Cycle - SWS

Solar Cycle. Current Solar Cycle forecast · Graphs of Historical Solar Cycles · Solar Cycle Number 22 (1986 - 1996) · What is the Sunspot Number?

#15. Maverick astrophysicist calls for unusually intense solar cycle

If the prediction of Scott McIntosh of the National Center for Atmospheric is right, it could mean more frequent and energetic solar storms ...

#16. Prediction of sunspot and plage coverage for Solar Cycle 25

... most prominently the 11-year sunspot solar cycle and its modulations. Space weather events, in the form of solar flares, solar energetic ...

#17. Hello Solar Cycle 25 - National Weather Service

Solar cycle prediction gives a rough idea of the frequency of space weather storms of all types, from radio blackouts to geomagnetic storms and ...

#18. Is our sun going into hibernation? | Space

The sun has one particular rhythm, lasting approximately 11 years, in which its polar magnetic field flips polarity. Sunspots serve as an ...

#19. New Sunspot Cycle could be one of the strongest on record

Scientists use an extended, 22-year solar cycle to make the forecast ... LEFT: Oppositely charged magnetic bands, represented in red and blue, ...

#20. Solar cycle-related variation in solar differential rotation and ...

We studied temporal variation of the differential rotation and poleward meridional circulation during solar cycle 24 using the magnetic ...

#21. Solar Cycle 25 is here - EarthSky

The sun's activity runs on a roughly 11-year cycle, moving regularly from its most quiet period – solar minimum – to its most active – solar ...

#22. The Solar Cycle | SpringerLink

The Solar Cycle is reviewed. The 11-year cycle of solar activity is characterized by the rise and fall in the numbers and surface area of sunspots.

#23. ESA - Solar cycle 25: the Sun wakes up - European Space ...

The Sun has entered its 25th solar cycle and is about to wake up. For the last few years our star has been pretty sleepy, with few sunspots, ...

#24. The Solar Cycle | Astronomy

Describe the sunspot cycle and, more generally, the solar cycle; Explain how magnetism is the source of solar activity. Before the invention of the ...

#25. Solar cycle Definition & Meaning - Merriam-Webster

The meaning of SOLAR CYCLE is a cycle of disturbances in the sun and its atmosphere (such as the fluctuation in the numbers and areas of sunspots or the ...

#26. Examples of division to different solar cycle phases used in this...

We study the relation between strong and extreme geomagnetic storms and solar cycle characteristics. The analysis uses an extensive geomagnetic index AA ...

#27. The Weakest Solar Cycle in 100 Years - Sky & Telescope

A Weak and Weird Solar Cycle. Sun's magnetic field: A Solar Cycle. The Sun rotates faster at its equator, which stretches the magnetic field lines around the ...

#28. Solar Cycle 25: The Sun is Heating Up - The Old Farmer's ...

Solar Cycle 24 lasted 11 years (December 2008 to 2019), which is the average length of a cycle, though it was the weakest cycle in terms of ...

#29. solar cycle - 太陽週期 - 國家教育研究院雙語詞彙

太陽週期 · solar cycle · 名詞解釋: 太陽各項活動數量增加或減少之週期。如太陽黑子平均以11.1年為一週期。 · 太陽週期 · solar cycle · 學術名詞 · 辭書.

#30. The Sun has entered a new cycle of solar activity - Inverse

Solar activity largely depends on the Sun's magnetic field. The Sun's magnetic field goes through a periodic cycle in which the south and north ...

#31. The Solar Cycle - NASA/ADS

Abstract. The Solar Cycle is reviewed. The 11-year cycle of solar activity is characterized by the rise and fall in the numbers and surface area of sunspots ...

#32. An Indicator of Solar Activity Closely Associated with Climate

A set of data that supports the suggestion of a direct influence of solar activity on global climate is the variation of the solar cycle length.

#33. The Sun has started a new solar weather cycle - BBC

The Sun goes through a regular cycle of calm and stormy activity, which lasts for around 11 years. Nasa has now announced the beginning of a new ...

#34. The sun has started a new solar cycle, experts say - CNN

(CNN) Every 11 years, the sun completes a solar cycle of calm and stormy activity and begins a new one. It's important to understand the ...

#35. Mystery of solar cycle illuminated | Max-Planck-Gesellschaft

In the convection zone of the Sun, the plasma currents make a huge turnover that lasts about 22 years, corresponding to one magnetic solar ...

#36. Solar cycle 24: An unusual polar field reversal - Astronomy ...

Unlike the Earth however, the Sun's global dipole magnetic field flips or reverses polarity every 11 years around the maximum phase of each 11 year solar cycle.

#37. The peculiar solar cycle 24 – where do we stand? - IOPscience

Data from the solar interior, the solar surface and the heliosphere all show that cycle. 24 began from an unusual minimum and is unlike the cycles that preceded ...

#38. What is the Solar Maximum? - The Aurora Zone

During any given Solar Cycle, the number of sunspots rises to a maximum (Solar Maximum) and falls to a minimum (Solar Minimum). The important thing to remember ...

#39. 1.4.3 Solar Variability and the Total Solar Irradiance - IPCC

Both of these missions showed that the passage of sunspots and faculae across the Sun's disk influenced TSI. At the maximum of the 11-year solar activity cycle, ...

#40. Cosmic Rays and the Solar Cycle - BARTOL NEUTRON ...

COSMIC RAYS AND THE SOLAR CYCLE · Solar activity rises and falls with a period of about 11 years. · Emissions of matter and electromagnetic fields from the Sun ...

#41. How the Sun's 11-Year Solar Cycle Works | Live Science

The sun's temper varies on an 11-year cycle, typically taking about 5 1/2 years to move from the quieter period of solar minimum, ...

#42. Revisiting the Question: The Cause of the Solar Cycle ...

The Mg II index and sunspot area are usually used to represent the intensification contribution by solar bright structures to total solar irradiance (TSI) ...

#43. The Extended Solar Cycle: Muddying the Waters of ... - Frontiers

In intervening years, it was deduced that the Sun (and sun-like stars) possess magnetic activity cycles that are assumed to be the physical ...

#44. The Solar Cycle or El Niño Southern Oscillation (ENSO) as a ...

global temperatures and length of the sunspot cycle during the period 1860-1986 and ii). cloud cover and solar activity, plus cosmic ray intensities (Hoyt: 1997) ...

#45. New sunspot cycle could be one of the strongest on record | NSF

In a new article in Solar Physics, the researchers predict that Sunspot Cycle 25 will peak with a maximum sunspot number somewhere between ...

#46. Solar Electromagnetic Radiation Study for Solar Cycle 22: ...

Proceedings of the SOLERS22 Workshop held at the National Solar ... During the course of a solar cycle , higher solar activity is associated with higher ...

#47. Solar cycle 25: The sun wakes up - Phys.org

The sun has entered its 25th solar cycle and is about to wake up. For the last few years our star has been pretty sleepy, with few sunspots, ...

#48. Can the Sun's 11-Year Cycle Explain Global Warming?

The study was published in Climate Dynamics on July 15th. The 11-year near-periodicity recalls that of the solar cycle, which climate-skeptics ...

#49. Will Solar Cycle 25 Dazzle or Fizzle in 2021? - Universe Today

Or will it? A new study entitled – Overlapping Magnetic Activity Cycles and the Sunspot Number: Forecasting Sunspot Cycle 25 Amplitude published ...

#50. The sun is getting stormier, and it'll peak just in time for a total ...

A strong solar cycle might spell trouble for Earth. Sunspots can unleash massive explosions called solar flares, and those flares sometimes ...

#51. What is Solar Cycle 25? - The Indian Express

Scientists track a solar cycle by using sunspots, which are the dark blotches on the Sun that are associated with solar activity. Sunspots are ...

#52. Meet “The Terminator”: UMBC-led research connects solar ...

The solar cycle involves periodic changes in activity on the Sun's surface, and a new way of thinking about it reveals connections between ...

#53. The Sunspot Cycle Is More Intricate Than Previously Thought

Sunspots and solar flares rise and fall every 11 years, a cycle associated with regular reversal of the star's magnetic field. Huge quantities ...

#54. An early solar cycle minimum? | STCE

Besides the sunspot number, another well-known indicator of solar activity is the F10.7 index, which is the flux density of the Sun observed in ...

#55. Solar cycle 25 is well underway in 2021 with sunspot action

Many know that our star, the sun, is in constant flux and that the sun has a regular cycle of some 11 years. This cycle, produces a period ...

#56. An Update On The Solar Cycle 25 Forecast - Climate Impact ...

The historical average sunspot number for solar maxima is annotated on the right. Discussion: According to NASA, solar cycle 25 began last ...

#57. Solar cycle 24: what is the Sun up to? | Astronomy & Geophysics

Predictions of the peak sunspot number during solar cycle 24 (SC24), made before it began, were in the range 42–185 (Pesnell 2008), a wide ...

#58. As Sun enters 'solar cycle 25', experts foresee below-average ...

The sun takes eleven years to complete a solar cycle before beginning a new one. The sun has started a new solar cycle, according to ...

#59. Solar Cycle 25 Prediction - CESSI IISER Kolkata

Scientists predict the Sun's activity to reveal expected ... The current sunspot cycle dubbed as solar cycle 24 is just ending and it has ...

#60. A new solar cycle may be underway - Sciencenorway

The solar cycle is caused by the sun's intense magnetic field twisting and rotating. Over the course of eleven years, the sun's north and ...

#61. What is Solar Cycle | IGI Global

Definition of Solar Cycle: Known also as solar magnetic activity cycle which have an average duration of about 11 years characterizing changes in the Sun's ...

#62. Upcoming Sunspot Cycle Could Be Among the Strongest ...

This is known as the Sunspot. A sunspot cycle is a cyclic event that lasts for eleven years, with some variation in length. During every cycle, ...

#63. A New Sun Cycle Promises Relatively Calm Space Weather

Based on recent sunspot data, researchers can now say that so-called "Solar Cycle 24" came to an end in December of 2019. Solar Cycle 25 has ...

#64. Sun enters 25th solar cycle: 'Violent eruptions can happen ...

Meanwhile, the panel has high confidence that Solar Cycle 25 will break the trend of weakening solar activity seen over the past four cycles. “ ...

#65. Modern Grand Solar Minimum will lead to terrestrial cooling

It is evident that for the same leading polarity of the magnetic field in sunspots in the same hemisphere the solar cycle length should be ...

#66. Solar Cycle 25 has begun, say solar astronomers - BBC Sky at ...

After a year and a half with barely any sunspots, a group of astronomers, known as the Solar Cycle 25 Prediction Panel, have announced the Sun's ...

#67. The Sun is Entering a New Cycle- What Does This Mean?

According to NASA, a solar cycle is “the cycle that the Sun's magnetic field goes through approximately every 11 years.” The sun is essentially ...

#68. Model of Solar Cycle's Impact on Climate Gets Upgrade

The solar cycle can impact the Earth's climate through solar radiation and energetic particles. Energetic particles emitted by the Sun ...

#69. A Study of Variation of the 11-yr Solar Cycle before the onset ...

A Study of Variation of the 11-yr Solar Cycle before the onset of the Spoerer Minimum based on Annually measured 14C Content in tree Rings ...

#70. The representation of solar cycle signals in stratospheric ozone

The impact of changes in incoming solar irradiance on stratospheric ozone abundances should be included in climate simulations to aid in ...

#71. Solar Cycle | Oxford Research Encyclopedia of Physics

The Sun's magnetic field drives the solar wind and produces space weather. It also acts as the prototype for an understanding of other stars ...

#72. great news for northern lights hunters: the next solar cycle has ...

Solar minimum simply means the period in the sunspot cycle when solar activity is lowest, and sunspots are less abundant.

#73. How can the solar cycle threaten technology on Earth?

What technological disruptions will the periodic (11-year) solar sunspot cycle cause to humans on Earth and in the planet's orbit? —Victor ...

#74. What Is Climate Change? - the United Nations

These shifts may be natural, such as through variations in the solar cycle. ... wrapped around the Earth, trapping the sun's heat and raising temperatures.

#75. Now entering a deep solar minimum and the latest forecast for ...

The solar cycle is like a pendulum, swinging back and forth between periods of high and low sunspot number every 11 years or so. Researchers ...

#76. An Extended Solar Cycle 23 with Deep Minimum Transition to ...

Shortcomings of solar-convection-model predictions of sunspot activity and intensity are also noted, including the failure in the initial predictions of cycle- ...

#77. The sunspot cycle - Curious - Australian Academy of Science

#78. What is the solar cycle? (Beginner)

It is thought that the luminosity, (or how bright the Sun is) may vary with solar cycles, and since all the energy on the Earth comes from the ...

#79. 'Next solar cycle may be stronger than previous one'

The Sun's activity, influenced by its magnetic nature, fluctuates in 11 year cycles and affects the atmospheric conditions on Earth through ...

#80. Solar storms are back, threatening life on Earth as we know it

The sun began a new 11-year cycle last year and as it reaches its peak in 2025 the specter of powerful space weather creating havoc for humans ...

#81. Solar Cycle - Windows to the Universe

The variation in sunspot numbers from 1700-1993, courtesy of NOAA/NGDC. ... The number of sunspots on the Sun is not constant. In addition to the ...

#82. Solar cycle [Oulu]

Sunspots display the 11-year cycle also in their latitude. At the beginning of a cycle new spots start to appear at about +/- 45° latitude. As ...

#83. Solar Cycle Update | Spaceweather.com

July 14, 2020: NOAA has released a new interactive tool to explore the solar cycle. It lets you scroll back through time, comparing sunspot ...

#84. SpaceWeather.com -- News and information about meteor ...

Cosmic Rays Solar Cycle 25 is beginning, and this is reflected in the ... CHANCE OF CHRISTMAS STORMS (UPDATED): Multiple M-class solar flares this week have ...

#85. Solar probe touches the sun for the first time in history

NASA's Parker Solar Probe, carrying instruments built at UC Berkeley, ... as the sun's 11-year activity cycle — the solar cycle — ramps up, ...

#86. Parker Solar Probe touches the sun for the first time, bringing ...

Narrowing down switchback origins. The size of the corona is also driven by solar activity. As the sun's 11-year activity cycle—the solar cycle— ...

#87. Life Cycle Assessment of a Parabolic Trough Concentrating ...

Solar Power Plant and the Impacts of Key Design Alternatives. ... During its life cycle, the reference CSP plant is estimated to emit 26 g ...

#88. NASA solar probe becomes first spacecraft to 'touch' the sun

The Parker Solar Probe has successfully flown through the sun's corona to ... Every 11 years, the sun completes a solar cycle of calm and ...

#89. Auroras on Christmas coming but brace for another solar storm

According to the experts from NASA, the Sun has begun its 'Solar Cycle 25', which is expected to peak in 2025. Solar minimum occurred in ...

#90. Solar Storms and Their Potential to Create Electronic Chaos

Solar events have destroyed grids, set wires on fire, ... Their frequency also varies during the sun's 11-year solar cycle, ...

#91. Solar Cycle 25 - Daily Blog day

Solar cycles have implications for life and technology on Earth as well as astronauts in space. Solar activity varied with the stages of the ...

#92. Smaller solar storms in the last decade baffle scientists

The Sun, an explosive celestial object, has been much quieter between ... of CMEs in the last decades (during solar cycle 24 from 2008-2019) ...

#93. The Sun Is a Bit Boring, Which May Make It Special - The New ...

During times of peak magnetic activity, when spots pop out all over the surface, a star will dim. Our sun's cycle lasts about 11 Earth years.

#94. NASA solar probe becomes first spacecraft to 'touch' the sun

The Parker Solar Probe has successfully flown through the sun's corona to ... It's important to understand the solar cycle because space ...

#95. NASA solar probe becomes first spacecraft to 'touch' the sun

The Parker Solar Probe has successfully flown through the sun's corona, ... Every 11 years, the sun completes a solar cycle of calm and ...

#96. A human-made object parker solar probe just touched the Sun

The Parker Solar Probe became the first human-made object to venture ... right as the Sun's 11-year activity cycle the solar cycle ramps up.