Measurements of Solar FUV Spectral Irradiance: TIMED-SEE Results Compared with UARS and SORCE

Details Measurements of Solar FUV Spectral Irradiance: TIMED-SEE Results Compared with UARS and SORCE Measurements of Solar FUV Spectral Irradiance: TIMED-SEE Results Compared with UARS and SORCE

Dec 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003agufmsa41b0426e&link_type=abstract

American Geophysical Union, Fall Meeting 2003, abstract #SA41B-0426

Physics

0342 Middle Atmosphere: Energy Deposition, 0358 Thermosphere: Energy Deposition, 7538 Solar Irradiance, 7549 Ultraviolet Emissions, 7594 Instruments And Techniques

Scientific paper

The solar radiative output in the far ultraviolet (FUV, from 120 to 200 nm in wavelength) deposits its energy in the Earth's mesosphere and lower thermosphere (MLT). Solar variability causes variability in atmospheric temperature, dynamics, and composition, making an understanding of the solar FUV vital to understanding the MLT region of the atmosphere. Currently there are three satellites with sets of instruments measuring the solar FUV spectral irradiance. The Solar EUV Experiment (SEE) on board the TIMED satellite has been measuring both the solar EUV and FUV daily since early 2002. The Upper Atmosphere Research Satellite (UARS), launched in 1991, continues to measure the FUV with two instruments: the Solar Stellar Irradiance Comparison Experiment (SOLSTICE) and the Solar Ultraviolet Spectral Irradiance Monitor (SUSIM). The Solar Radiation Climate Experiment (SORCE) mission was recently launched in early 2003 carrying two SOLSTICE instruments which measure the solar FUV. This paper will present the TIMED-SEE FUV measurements from early 2002 to the present and compare them with historical and simultaneous measurements from the UARS and SORCE FUV instruments, providing an overview of solar FUV variability on time scales from days to a full solar cycle.

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