Solar irradiance (HANSEN)

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Solar Irradiance

Also available in PDF.

Also available in PDF.

Data source: For 1976/01/05 to 2011/02/02 Physikalisch Meteorologisches Observatorium Davos, World Radiation Center and for 2011/02/03 to 2012/02/22 University of Colorado Solar Radiation & Climate Experiment. Data are matched using the 2010/02/03 to 2011/02/02 period. (Last modified: 2012/02/29)

Long-Term Sunspot Numbers

Also available in PDF. Data source: SIDC – Solar Influences Data Analysis Center (Data are through January 2012, Last modified: 2012/03/01)

For daily sunspot numbers see NOAA page or page

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