ACRIM-gap and TSI trend issue resolved using a surface magnetic flux TSI proxy model

Details ACRIM-gap and TSI trend issue resolved using a surface magnetic flux TSI proxy model ACRIM-gap and TSI trend issue resolved using a surface magnetic flux TSI proxy model

Mar 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009georl..3605701s&link_type=abstract

Geophysical Research Letters, Volume 36, Issue 5, CiteID L05701

Astronomy and Astrophysics

Astrophysics

18

Solar Physics, Astrophysics, And Astronomy: Solar And Stellar Variability (1650), Global Change: Oceans (1616, 3305, 4215, 4513), Interplanetary Physics: Solar Wind Plasma, Interplanetary Physics: Cosmic Rays

Scientific paper

The ACRIM-gap (1989.5-1991.75) continuity dilemma for satellite TSI observations is resolved by bridging the satellite TSI monitoring gap between ACRIM1 and ACRIM2 results with TSI derived from Krivova et al.'s (2007) proxy model based on variations of the surface distribution of solar magnetic flux. `Mixed' versions of ACRIM and PMOD TSI composites are constructed with their composites' original values except for the ACRIM gap, where Krivova modeled TSI is used to connect ACRIM1 and ACRIM2 results. Both `mixed' composites demonstrate a significant TSI increase of 0.033 %/decade between the solar activity minima of 1986 and 1996, comparable to the 0.037 % found in the ACRIM composite. The finding supports the contention of Willson (1997) that the ERBS/ERBE results are flawed by uncorrected degradation during the ACRIM gap and refutes the Nimbus7/ERB ACRIM gap adjustment Fröhlich and Lean (1998) employed in constructing the PMOD.

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