Related references
Note: Only part of the references are listed.Variations of interplanetary magnetic field on various long time-scales
Yury A. Nagovitsyn et al.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2020)
Sunspot observations by Hisako Koyama: 1945-1996
Hisashi Hayakawa et al.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2020)
Long-term Periodicities in North-south Asymmetry of Solar Activity and Alignments of the Giant Planets
J. Javaraiah
SOLAR PHYSICS (2020)
Historical sunspot records
Rainer Arlt et al.
LIVING REVIEWS IN SOLAR PHYSICS (2020)
Analysis of full-disc Ca II K spectroheliograms: III. Plage area composite series covering 1892-2019
Theodosios Chatzistergos et al.
ASTRONOMY & ASTROPHYSICS (2020)
Sunspot area catalog revisited: Daily cross-calibrated areas since 1874
Sudip Mandal et al.
ASTRONOMY & ASTROPHYSICS (2020)
Solar cycle prediction
Kristof Petrovay
LIVING REVIEWS IN SOLAR PHYSICS (2020)
How faculae and network relate to sunspots, and the implications for solar and stellar brightness variations
K. L. Yeo et al.
ASTRONOMY & ASTROPHYSICS (2020)
Recalculation of the Wolf Series from 1877 to 1893
Thomas K. Friedli
SOLAR PHYSICS (2020)
The Evolution over Time and North-South Asymmetry of Sunspots and Solar Plages for the Period 1910 to 1937 Using Data from Ebro Catalogues
V. de Paula et al.
SOLAR PHYSICS (2020)
Thaddaus Derfflinger's Sunspot Observations during 1802-1824: A Primary Reference to Understand the Dalton Minimum
Hisashi Hayakawa et al.
ASTROPHYSICAL JOURNAL (2020)
Analysis of full disc Ca II K spectroheliograms II. Towards an accurate assessment of long-term variations in plage areas
Theodosios Chatzistergos et al.
ASTRONOMY & ASTROPHYSICS (2019)
Solar activity: periodicities beyond 11 years are consistent with random forcing
R. H. Cameron et al.
ASTRONOMY & ASTROPHYSICS (2019)
Differences in the solar cycle variability of simple and complex active regions during 1996-2018
S. Nikbakhsh et al.
ASTRONOMY & ASTROPHYSICS (2019)
The effect of telescope aperture, scattered light and human vision on early measurements of sunspot and group numbers
Nina V. Karachik et al.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2019)
Analysis of the Hemispheric Sunspot Number Time Series for the Solar Cycles 18 to 24
P. Chowdhury et al.
SOLAR PHYSICS (2019)
Visualization of the challenges and limitations of the long-term sunspot number record
Andres Munoz-Jaramillo et al.
NATURE ASTRONOMY (2019)
On The Question of North-South Asymmetry of Solar Activity
A. P. Kraminin et al.
GEOMAGNETISM AND AERONOMY (2019)
Two Populations of Sunspots: Differential Rotation
Yu. A. Nagovitsyn et al.
ASTRONOMY LETTERS-A JOURNAL OF ASTRONOMY AND SPACE ASTROPHYSICS (2018)
Solar total and spectral irradiance reconstruction over the last 9000 years
C. -J. Wu et al.
ASTRONOMY & ASTROPHYSICS (2018)
Stable Sunspot Area Level of Debrecen Photoheliographic Data and Multivariate Correction Factor of SOON Data
T. Baranyi
SOLAR PHYSICS (2018)
The Gnevyshev-Ohl Rule and Two Sunspot Group Populations
Yu. A. Nagovitsyn et al.
GEOMAGNETISM AND AERONOMY (2018)
Some Features of the Two Sunspot Group Populations' Properties
Yu. A. Nagovitsyn et al.
GEOMAGNETISM AND AERONOMY (2018)
The Waldmeier Effect for Two Sunspot Populations
A. A. Osipova et al.
GEOMAGNETISM AND AERONOMY (2017)
Versions of Time Series for Classical Solar Indices and an Adequate Description of Solar Activity
Yu. A. Nagovitsyn et al.
GEOMAGNETISM AND AERONOMY (2017)
The Waldmeier Effect for Two Sunspot Populations
A. A. Osipova et al.
GEOMAGNETISM AND AERONOMY (2017)
Versions of Time Series for Classical Solar Indices and an Adequate Description of Solar Activity
Yu. A. Nagovitsyn et al.
GEOMAGNETISM AND AERONOMY (2017)
Wings of the butterfly: Sunspot groups for 1826-2015
R. Leussu et al.
ASTRONOMY & ASTROPHYSICS (2017)
New reconstruction of the sunspot group numbers since 1739 using direct calibration and backbone methods
Theodosios Chatzistergos et al.
ASTRONOMY & ASTROPHYSICS (2017)
Updated sunspot group number reconstruction for 1749-1996 using the active day fraction method
T. Willamo et al.
ASTRONOMY & ASTROPHYSICS (2017)
A history of solar activity over millennia
Ilya G. Usoskin
LIVING REVIEWS IN SOLAR PHYSICS (2017)
Two populations of sunspots and secular variations of their characteristics
Yu. A. Nagovitsyn et al.
ASTRONOMY LETTERS-A JOURNAL OF ASTRONOMY AND SPACE ASTROPHYSICS (2016)
The area and absolute magnetic flux of sunspots over the past 400 years
Yu. A. Nagovitsyn et al.
ASTRONOMY REPORTS (2016)
Dependence of the Sunspot-Group Size on the Level of Solar Activity and its Influence on the Calibration of Solar Observers
I. G. Usoskin et al.
SOLAR PHYSICS (2016)
Tests of Sunspot Number Sequences: 3. Effects of Regression Procedures on the Calibration of Historic Sunspot Data
M. Lockwood et al.
SOLAR PHYSICS (2016)
An Alternative Measure of Solar Activity from Detailed Sunspot Datasets
J. Murakozy et al.
SOLAR PHYSICS (2016)
Sunspot Observations of Rudolf Wolf from 1849-1893
Thomas K. Friedli
SOLAR PHYSICS (2016)
The Discontinuity Circa 1885 in the Group Sunspot Number
E. W. Cliver et al.
SOLAR PHYSICS (2016)
Tests of Sunspot Number Sequences: 4. Discontinuities Around 1946 in Various Sunspot Number and Sunspot-Group-Number Reconstructions
M. Lockwood et al.
SOLAR PHYSICS (2016)
A New Calibrated Sunspot Group Series Since 1749: Statistics of Active Day Fractions
I. G. Usoskin et al.
SOLAR PHYSICS (2016)
The Greenwich Photo-heliographic Results (1874-1885): Observing Telescopes, Photographic Processes, and Solar Images
D. M. Willis et al.
SOLAR PHYSICS (2016)
Re-examination of the Daily Number of Sunspot Groups for the Royal Observatory, Greenwich (1874-1885)
D. M. Willis et al.
SOLAR PHYSICS (2016)
The Impact of the Revised Sunspot Record on Solar Irradiance Reconstructions
G. Kopp et al.
SOLAR PHYSICS (2016)
Tests of Sunspot Number Sequences: 2. Using Geomagnetic and Auroral Data
M. Lockwood et al.
SOLAR PHYSICS (2016)
Reconstruction of the Sunspot Group Number: The Backbone Method
Leif Svalgaard et al.
SOLAR PHYSICS (2016)
A Revised Collection of Sunspot Group Numbers
J. M. Vaquero et al.
SOLAR PHYSICS (2016)
The New Sunspot Number: Assembling All Corrections
Frederic Clette et al.
SOLAR PHYSICS (2016)
SYSTEMATIC REGULARITY OF HEMISPHERIC SUNSPOT AREAS OVER THE PAST 140 YEARS
L. H. Deng et al.
ASTRONOMICAL JOURNAL (2016)
SUNSPOT SIZES AND THE SOLAR CYCLE: ANALYSIS USING KODAIKANAL WHITE-LIGHT DIGITIZED DATA
Sudip Mandal et al.
ASTROPHYSICAL JOURNAL LETTERS (2016)
LONG-TERM TREND OF SUNSPOT NUMBERS
P. X. Gao
ASTROPHYSICAL JOURNAL (2016)
ON THE PRESENCE OF TWO POPULATIONS OF SUNSPOTS
Yury A. Nagovitsyn et al.
ASTROPHYSICAL JOURNAL (2016)
North-South asymmetry of solar activity on a long timescale
Yu. A. Nagovitsyn et al.
GEOMAGNETISM AND AERONOMY (2015)
Eleven-year cyclicity of the sun on the 2000-year time scale
Yu. A. Nagovitsyn et al.
GEOMAGNETISM AND AERONOMY (2015)
Hemispheric asymmetry of sunspot area in solar cycle 23 and rising phase of solar cycle 24: Comparison of three data sets
B. Ravindra et al.
NEW ASTRONOMY (2015)
The Solar Cycle
David H. Hathaway
Living Reviews in Solar Physics (2015)
Evolution of Active Regions
Lidia van Driel-Gesztelyi et al.
Living Reviews in Solar Physics (2015)
North-South asymmetry of solar activity on a long timescale
Yu. A. Nagovitsyn et al.
GEOMAGNETISM AND AERONOMY (2015)
Eleven-year cyclicity of the sun on the 2000-year time scale
Yu. A. Nagovitsyn et al.
GEOMAGNETISM AND AERONOMY (2015)
DIMMING OF THE MID-20TH CENTURY SUN
Peter Foukal
ASTROPHYSICAL JOURNAL (2015)
THE MINIMUM OF SOLAR CYCLE 23: AS DEEP AS IT COULD BE?
Andres Munoz-Jaramillo et al.
ASTROPHYSICAL JOURNAL (2015)
OBSERVATIONS AND MODELING OF NORTH-SOUTH ASYMMETRIES USING A FLUX TRANSPORT DYNAMO
Juie Shetye et al.
ASTROPHYSICAL JOURNAL (2015)
An Explanation of the Differences Between the Sunspot Area Scales of the Royal Greenwich and Mt. Wilson Observatories, and the SOON Program
Peter Foukal
SOLAR PHYSICS (2014)
Revisiting the Sunspot Number A 400-Year Perspective on the Solar Cycle
Frederic Clette et al.
SPACE SCIENCE REVIEWS (2014)
Solar Irradiance Variability and Climate
Sami K. Solanki et al.
Annual Review of Astronomy and Astrophysics (2013)
ROLE OF ASYMMETRIC MERIDIONAL CIRCULATION IN PRODUCING NORTH-SOUTH ASYMMETRY IN A SOLAR CYCLE DYNAMO MODEL
Bernadett Belucz et al.
ASTROPHYSICAL JOURNAL (2013)
Indirect comparison of Debrecen and Greenwich daily sums of sunspot areas
T. Baranyi et al.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2013)
The Greenwich Photo-heliographic Results (1874-1976): Summary of the Observations, Applications, Datasets, Definitions and Errors
D. M. Willis et al.
SOLAR PHYSICS (2013)
Dynamo Models of the Solar Cycle
Paul Charbonneau
Living Reviews in Solar Physics (2013)
Reconstruction and Prediction of Variations in the Open Solar Magnetic Flux and Interplanetary Conditions
Mike Lockwood
Living Reviews in Solar Physics (2013)
A homogeneous database of sunspot areas covering more than 130 years
L. A. Balmaceda et al.
JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS (2009)
The Sun and the Earth's Climate
Joanna D. Haigh
LIVING REVIEWS IN SOLAR PHYSICS (2007)
The statistical significance of the North-South asymmetry of solar activity revisited
M. Carbonell et al.
ASTRONOMY & ASTROPHYSICS (2007)
The sunspot as an autonomous dynamical system: A model for the growth and decay phases of sunspots
George Livadiotis et al.
PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS (2007)
Series of classical solar activity indices: Kislovodsk data
Yu. A. Nagovitsyn et al.
SOLAR SYSTEM RESEARCH (2007)
The periodic behaviour of the North-South asymmetry of sunspot areas revisited
JL Ballester et al.
ASTRONOMY & ASTROPHYSICS (2005)
Periodic oscillations in the north-south asymmetry of the solar magnetic field
R Knaack et al.
ASTRONOMY & ASTROPHYSICS (2004)
What the sunspot record tells us about space climate
DH Hathaway et al.
SOLAR PHYSICS (2004)
Sunspots: An overview
SK Solanki
ASTRONOMY AND ASTROPHYSICS REVIEW (2003)
Hemispheric sunspot numbers Rn and Rs:: Catalogue and N-S asymmetry analysis
M Temmer et al.
ASTRONOMY & ASTROPHYSICS (2002)