Solar Spectral Flux Radiometer (SSFR)
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Transcript of Solar Spectral Flux Radiometer (SSFR)
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Solar Spectral Flux Radiometer (SSFR)
ATTREXScience Team Meeting
Oct. 23, 2013
NASA ARC/University of Colorado
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Zeiss Monolithic Spectrometer
VIS-NIR: 256 element silicon diode array 260-1090 nm, 3.0 nm sampling, 8 nm FWHM
NIR: 256 element InGaAs array 903-2217 nm, 5.0 nm sampling, 16 nm FWHM
16-bit systemNIST traceable calibrationIntegrating sphere for cosine response
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Kipp and Zonen CG4 pyrgeometer
• Wavelength range: 4.5-42 μm• Simultaneous zenith and nadir viewing• Hemispheric FOV• Sampling rate: 1 Hz• Measured quantities: Upwelling and downwelling broadband infrared irradiance [W m-2]
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Solar Spectral Flux Radiometer (SSFR)
Since the ATTREX mission inearly 2013 SSFR successfully participated in the 2013 SEAC4RS mission • 20 DC-8 science flights• Instrument returned in good
shape• Post-mission calibration to be
performed soon
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Solar Spectral Flux Radiometer (SSFR)
For the 2014 ATTREX mission
Pre-mission • Perform SSFR system functional check (mid to late Oct.)• Calibrate SSFR (angular, absolute, wavelength) (late Oct.
to mid Nov.)• Integrate/test on Global Hawk
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Solar Spectral Flux Radiometer (SSFR)
Since the ATTREX mission inearly 2013 requests been made to modify SSFR light collector and CG4 mounting to nadir fairing• Currently major undertaking to
remove/install fairing to access light collector and CG4 especially for field calibration
• Reduce risk to AWAS inlet and line mounted to same fairing
Fairing removed for SSFR cal