Physics
Scientific paper
Dec 2001
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001agufm.a41d..02w&link_type=abstract
American Geophysical Union, Fall Meeting 2001, abstract #A41D-02
Physics
1650 Solar Variability, 7536 Solar Activity Cycle (2162), 7538 Solar Irradiance
Scientific paper
The UARS/ACRIM2 experiment has added ten years of precision total solar irradiance (TSI) observations to the long term database. A composite TSI record of more than 22 years has been constructed using results from the Nimbus7/ERB, SMM/ACRIM1, UARS/ACRIM2 and ACRIMSAT/ACRIM3 experiments. An 0.037 % per decade upward trend in TSI between the successive solar cycle minima of 1986 and 1996 has been found in this record. If a trend of comparable magnitude were present during the past century TSI variation may have been an important component of global warming. Wavelet analysis of the composite TSI record provides a view of the distribution of solar activity and TSI periodicities during solar cycles 21-23. The cascade of periodicity to larger values during the declining phase of solar maxima 21, 22 and 23 demonstrate the role of active region faculae and the active network in driving the characteristic 0.1 % (peak-to-peak) solar cycle luminosity variation.
Mordvinov Alexander V.
Willson Richard C.
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