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DTSTAMP:20260414T181811
DTSTART:20150312T113000
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URL:https://murmitoyen.com/events/vanille/udem/detail/588543-the-importance
 -of-solar-spectral-irradiance-to-the-sun-earth-connection-lessons-learned-
 from-sorce-and-their-relevance-to-future-space-missions
LOCATION:Université de Montréal - Pavillon Roger-Gaudry\, 2900\, chemin d
 e la Tour\, Montréal\, QC\, Canada\, H3T 1J6
SUMMARY:The Importance of solar spectral irradiance to the Sun-Earth connec
 tion: Lessons-learned from SORCE and their relevance to future space missi
 ons
DESCRIPTION:Jerry Harder\, LASP\, University of Colorado BoulderThe Solar R
 adiation and Climate Experiment (SORCE) mission has provided for the first
  time solar spectral irradiance (SSI) observations over a full solar cycle
  time period with wavelength coverage from the X-ray through the near infr
 ared. We discuss the lessons-learned from SORCE including the need to deve
 lop more effective methods to track on-orbit spectroscopic response and se
 nsitivity degradation. This is especially important in using spectral irra
 diance as input to modern day chemistry-climate models. A basic requiremen
 t to obtain this essential climate record is to 1) perform preflight radio
 metric calibrations that are traceable SI standards and 2) design the inst
 rument to have the ability to perform instrument-only sensitivity correcti
 ons to objectively account for on-orbit degradation.  Current NIST (Natio
 nal Institute of Science and Technology) capabilities now permit the full 
 characterization of the spectral radiometer’s response.  Going forward\
 , we discuss a compact spectral radiometer development that will couple wi
 th advances in CubeSat technology to permit shorter and more frequent miss
 ions without compromising measurement accuracy. We also discuss the develo
 pment of a radiometric solar imager that will both greatly improve the int
 erpretation of existing Sun-as-a-star irradiance observations and provide 
 a bridge from our current irradiance capabilities to future high spatial/t
 emporal resolution solar physics assets such as the Daniel K. Inouye Solar
  Telescope (DKIST).Présentée par le Groupe Astronomie et astrophysique d
 u Département de physique de l'Université de Montréal. Cette conférenc
 e est destinée à des spécialistes dans le domaine de l'astrophysique et
  sera donnée en anglais.
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