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  • 1
    Electronic Resource
    Electronic Resource
    High-altitude aircraft measurements of upwelling IR radiance: Prelude to FTIR from geosynchronous satellite (1988)
    Springer
    Microchimica acta 95 (1988), S. 439-444 
    Details
    ISSN: 1436-5073
    Keywords: interferometry ; spectroscopy ; Fourier transform ; atmospheric remote sensing ; radiometry
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract An aircraft version of the high-resolution interferometer sounder (HIS), a Fourier transform spectrometer designed for meteorological applications, has been used to measure the upwelling infrared emission of the earth with a resolving power on the order of 1000. HIS measurements from high-altitude NASA research aircraft have demonstrated that the high radiometric accuracies required for atmospheric temperature and humidity sounding (1°C absolute brightness temperature and 0.1° C RMS reproducibility) can be achieved. Calibration is accomplished using periodic views of two onboard high-emissivity blackbodies, servo controlled to 300 K and 240 K. For an interferometer, this approach relies on careful optical design and alignment to avoid unknown dependence of the responsivity on optical path difference. The aircraft model is a successful prototype for spacecraft versions for weather and climate monitoring.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01349804
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Observation of upwelling radiation by SCRIBE (1988)
    Springer
    Microchimica acta 95 (1988), S. 433-438 
    Details
    ISSN: 1436-5073
    Keywords: atmospheric spectra ; radiometry ; cryogenic instruments
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract The SCRIBE (Stratospheric CRyogenic Interferometer Balloon Experiment) system was flown August 10, 1986, over eastern New Mexico. Because the SCRIBE sensor is a liquid nitrogen cooled interferometer, absolute radiance data were obtained with good resolution (0.1 cm−1) and high sensitivity. The normal field of view was reduced to ~0.2° (80 m on the ground) by a 12′' Dall-Kirkham telescope, and was steered by remote control using television cameras boresighted with the infrared sensor. The stabilized viewing allowed “staring” at selected features for considerable periods of time. The data sets thus include spectra of different terrain features, as well as substantially different atmospheric paths to one feature. Both the data and the SCRIBE equipment are described.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01349803
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
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