Dr. Greg Kopp (ISSI Team Leader), Univ. of Colorado / LASP
Instrument Scientist for the SORCE/TIM and future TSIS/TIM; Scientist for the TSI Radiometer Facility that provides end-to-end TSI instrument validations and diagnostics

Dr. Will Ball (Young Scientist), Imperial College
SATIRE solar irradiance modeler; responsible for refining SATIRE model and comparing to TSI data records

Dr. Steven Dewitte, Royal Meteorological Institute of Belgium
Instrument Scientist for SoHO/DIARAD and SOVA instruments; Scientist responsible for creating IRMB TSI composite

Dr. André Fehlmann (Young Scientist), University of Hawaii
PREMOS calibrations at NPL and LASP’s TRF; creating Cryogenic Solar Absolute Radiometer; André’s experience with international calibration facilities benefits team’s uncertainty estimates

Dr. Wolfgang Finsterle, Physikalisch-Meteorologisches Observatorium Davos
Instrument Scientist for PICARD/PREMOS; Head of Solar Radiometry Section SRS/WRC; PMOD/WRC Cryogenic Solar Absolute Radiometer lead; Organizer of 2010 International Pyrheliometer Comparison XI

Dr. Claus Fröhlich, Physikalisch-Meteorologisches Observatorium Davos
PI for SoHO/VIRGO; retired Director of PMOD/WRC; Scientist responsible for VIRGO TSI and for creating PMOD TSI composite

Dr. Sabri Mekaoui (Young Scientist), European Commission
Scientist on PICARD/SOVAP, STS 107/SOLCON, SOVIM/DIARAD; responsible for processing SoHO/DIARAD

Dr. Werner Schmutz, Physikalisch-Meteorologisches Observatorium Davos
PI for PICARD/PREMOS and PROBA3/SuMo; Director of PMOD/WRC

Dr. Richard Willson, ACRIM
PI for ACRIM 1, 2, and 3, spanning 30 years of TSI measurements with first implementation of on-orbit degradation tracking to improve measurement stability; Scientist responsible for creating ACRIM TSI composite

Dr. Pia Zacharias, Institute of Theoretical Astrophysics, Oslo
Solar scientist providing independent assessment of TSI record and composite