Wikimedia Commons

File:Sunspots-reconstructed-0-2015-en.svg

Original file ‎(SVG file, nominally 1,000 × 400 pixels, file size: 61 KB)

Captions

Captions

Add a one-line explanation of what this file represents

Summary

edit
Description
English: Group sunspot number, decadal average from year 0 until 2015.
  • red line, yr. 0-1945: values based on a 14C reconstruction, see Usoskin et al. (2014), Table CDS, sn.dat accessed June 3rd, 2016
  • orange line,
    • yr. 1610-2015: Yearly mean group number (v.2) from the backbone observer method (Svalgaard & Schatten 2016), source: WDC-SILSO, Royal Observatory of Belgium, Brussels, accessed June 3rd, 2016
    • yr. 2016-2020: Predicted Sunspot_Numbers, Created: 2016 May 09 0400 UTC, Prepared by the U.S. Dept. of Commerce, NOAA, Space Weather Prediction Center (SWPC), accessed June 3rd, 2016
This is basically a reproduction of Fig. 2 in Usoskin et al. (2014), but with v2 group numbers and the decade 2010-2020 added.
Deutsch: Gruppen-Sonnenfleckenzahl, Durchschnitt pro Jahrzehnt, vom Jahr 0 bis 2015
Date
Source Own work
Author DeWikiMan
Other versions

Literature and Sources:

  • G. Usoskin et al.: Evidence for distinct modes of solar activity. In: Astronomy & Astrophysics, 2014. DOI:10.1051/0004-6361/201423391
  • Frédéric Clette et al.: Revisiting the Sunspot Number: A 400-year perspective on the solar cycle. In: Space Sciences Series of ISSI - The Solar Activity Cycle. 2015. DOI:10.1007/978-1-4939-2584-1_3 (For details on the new group v2 number)
  • NOAA Space Weather Prediction Center: Predicted Sunspot Number and Radioflux. May 9th, 2016. Accessed June 3rd, 2016.
  • WDC-SILSO, Royal Observatory of Belgium, Brussels: group number | In: SILSO: Sunspot Index and Long-term Solar Observations. (Version 2.0 (Alternate series), Svalgaard & Schatten 2015: "backbone" yearly mean group number). Accessed June 3rd, 2016.


Created with Gnuplot 4.4 using the following script: 

set terminal svg enhanced size 1000 400 fname "Liberation Sans" fsize 12
set output "sunspots-reconstructed-0-2015-en.svg"
set title "Group sunspot number 0–2015" font "Liberation Sans, 24"
set datafile missing '"#N/A"'
set obj 1 rectangle behind from screen 0,0 to screen 1,1
set obj 1 fillstyle solid 1.0 fillcolor rgbcolor "white"

set key top left Left reverse
set key nobox
set yrange [0:100]
set ytics out nomirror ("10" 10, "" 20, "30" 30, "" 40, "50" 50, "" 60, "70" 70, "" 80, "90" 90)
set xrange [0:2015]
set xtics out nomirror 0,200,2000
set mxtics 4
set grid xtics ytics mxtics mytics lt 0 lw 0.5 lc rgb "grey95"
set xlabel 'Year'
set ylabel 'Sunspots (decadal average)'
set style data lines
plot 'sn-usoskin2014-reconstruct.dat' using 1:3:4 w filledcurves lt rgbcolor "#F6DFB6" notitle, \
     'sunspots-groupnumber-1615-2015-dec-avg.csv' using 1:5 lt rgbcolor "orange" lw 3 title "Group sunspot no. V2.0 (–2015: SILSO data, 2016–2020: NOAA SWPC)", \
     'sn-usoskin2014-reconstruct.dat' using 1:2 lt rgbcolor "red" lw 3 title "^{14}C reconstruction (Usoskin et al., 2014)"

Licensing

edit
I, the copyright holder of this work, hereby publish it under the following licenses:
GNU head Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled GNU Free Documentation License.
w:en:Creative Commons
attribution share alike
This file is licensed under the Creative Commons Attribution-Share Alike Attribution-Share Alike 4.0 International, 3.0 Unported, 2.5 Generic, 2.0 Generic and 1.0 Generic license.
You are free:
  • to share – to copy, distribute and transmit the work
  • to remix – to adapt the work
Under the following conditions:
  • attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
  • share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.
You may select the license of your choice.

File history

Click on a date/time to view the file as it appeared at that time.

Date/TimeThumbnailDimensionsUserComment
current09:54, 18 March 2017Thumbnail for version as of 09:54, 18 March 20171,000 × 400 (61 KB)DeWikiMan (talk | contribs){{Information |Description ={{en|1=Group sunspot number, decadal average from year 0 until 2015. * red line, yr. 0-1945: values based on a 14C reconstruction, see Usoskin et al. (2014), [http://cdsarc.u-strasbg.fr/viz-bin/qcat?J/A+A/562/L10 Table C...

You cannot overwrite this file.

There are no pages that use this file.

Metadata

This file contains additional information such as Exif metadata which may have been added by the digital camera, scanner, or software program used to create or digitize it. If the file has been modified from its original state, some details such as the timestamp may not fully reflect those of the original file. The timestamp is only as accurate as the clock in the camera, and it may be completely wrong.

Retrieved from "https://commons.wikimedia.org/w/index.php?title=File:Sunspots-reconstructed-0-2015-en.svg&oldid=804780589"