000005835 001__ 5835
000005835 005__ 20220920104654.0
000005835 0247_ $$2DOI$$a10.3390/rs14051072
000005835 037__ $$aSCART-2022-0081
000005835 100__ $$aDewitte, Steven
000005835 245__ $$aCentennial Total Solar Irradiance Variation
000005835 260__ $$c2022
000005835 520__ $$aTotal Solar Irradiance (TSI) quantifies the solar energy received by the Earth and therefore is of direct relevance for a possible solar influence on climate change on Earth. We analyse the TSI space measurements from 1991 to 2021, and we derive a regression model that reproduces the measured daily TSI variations with a Root Mean Square Error (RMSE) of 0.17 W/m2. The daily TSI regression model uses the MgII core to wing ratio as a facular brightening proxy and the Photometric Sunspot Index (PSI) as a measure of sunspot darkening. We reconstruct the annual mean TSI backwards to 1700 based on the Sunspot Number (SN), calibrated on the space measurements with an RMSE of 0.086 W/m2. The analysis of the 11 year running mean TSI reconstruction confirms the existence of a 105 year Gleissberg cycle. The TSI level of the current grand minimum is only about 0.15 W/m2 higher than the TSI level of the grand minimum in the beginning of the 18th century.
000005835 594__ $$aNO
000005835 6531_ $$a total solar irradiance
000005835 6531_ $$a sunspot number
000005835 700__ $$aCornelis, Jan
000005835 700__ $$aMeftah, Mustapha
000005835 773__ $$n5$$pRemote Sensing$$v14$$y2022
000005835 8560_ $$felodie.brahy@ksb-orb.be
000005835 85642 $$ahttps://www.mdpi.com/2072-4292/14/5/1072
000005835 905__ $$apublished in
000005835 980__ $$aREFERD