HR: 10:20h
AN: GC42A-01 INVITED    [Abstracts]
TI: Total Irradiance Monitor Observations of Total Solar Irradiance
AU: * Kopp, G
EM: Greg.Kopp@LASP.Colorado.edu
AF: LASP, Univ. of Colorado 1234 Innovation Dr., Boulder, CO 80303, United States
AB: The Total Irradiance Monitor (TIM) is the most recent instrument launched to measure total solar irradiance (TSI) from space. This electrical substitution radiometer has on-orbit degradation tracking to provide very stable long- term measurements of the net solar radiation incident on the Earth, and the instrument continues the 29-year record of this natural driver of Earth climate. Currently flying on the SOlar Radiation and Climate Experiment (SORCE), the TIM has been providing stable, low-noise, and accurate measurements of TSI since early 2003. The TIM will next be flying on NASA's Glory climate mission and is one instrument of the Total Solar Irradiance Sensor (TSIS) selected to continue this important climate record well into the future. The SORCE/TIM has created renewed interest in the TSI absolute value and has acquired the first measurements of the total radiant energy released by large solar flares. Improvements in ground-based calibrations starting with the Glory/TIM will establish traceability linking current to upcoming measurements, solidifying the existing TSI climate data record in the undesirable event of a future data gap.
UR: http://lasp.colorado.edu/sorce
DE: 1616 Climate variability (1635, 3305, 3309, 4215, 4513)
DE: 1650 Solar variability (7537)
DE: 1694 Instruments and techniques
DE: 7538 Solar irradiance
DE: 7594 Instruments and techniques
SC: Global Environmental Change [GC]
MN: 2007 Fall Meeting