Metrologia, 40: S89-S92.Magnetic helicity flux gives information about the topology of a magnetic field passing through a boundary. MODIS On-orbit Calibration and Characterization. Xiong, X., Chiang K, Esposito, Guenther, B., and Barnes, B. Observation of the solar spectral irradiance from 200 to 870 nm during Atlas 1 and Atlas 2 missions by the SOLSPEC spectrometer. The visible solar spectral irradiance from 350 to 850 nm as measured by the SOLSPEC spectrometer during the Atlas 1 mission. The solar spectral irradiance from 200 to 2400 nm as measured by the SOLSPEC spectrometer from the ATLAS 1-2-3 and EURECA missions. In-flight calibration of the Modular Optoelectronic Scanner (MOS). NASA/TM-2003-211621, Natioanl Aeronautics and Space Administration, Goddard Space Flight Center, Greenbelt, Maryland. Ocean optics protocols for satellite ocean color sensor validation, Revision 4, Volume 1: Introduction, background and conventions. Reflectance-based calibration of SeaWiFS. The solar spectra adopted by various ocean-colour missions are listed below.īarnes, R.A. Therefore, as an intermediate solution, IOCCG recommended that all agencies publish (on their web-site) the F 0(λ) spectrum adopted by each satellite ocean-colour sensor project, as well as the convolution of this spectrum, with the spectral profile of each channel of their sensor. #Solar flux softwareThis is an ideal solution, but may take a while to implement as it requires significant changes in the software used for operational processing and validation analysis. (2003) and encouraged its use at the highest possible spectral resolution. At the 17 th CEOS Plenary (18-20 November 2003, Colorado Springs) the Working Group on Calibration and Validation recommended that all Agencies converge to the recently refined solar reference spectrum of Thullier et al. Recommendation from the Working GroupĪn ideal solution to the problem would be to adopt a common international standard scale for the spectrum of extraterrestrial solar irradiance. It is important that a single, common standard solar flux spectrum be used in every aspect of research and validation, since it enters into the normalisation of water leaving radiance, calibration of atmospheric radiation measurements and atmospheric correction algorithms. Top of atmosphere radiances cannot be directly compared since the results are dependent on the choice of F 0(λ).
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