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Langley extrapolation information


Direct solar radiation, at the various wavelengths indicated in nanometers, as measured at Niamey Niger on 24 December 2006, with a Multi-Filter Rotating Shadowband Radiometer (MFRSR). Measurements are plotted as a function of time in UTC.

Langley extrapolation is a method for determining the Sun's irradiance at the top of the atmosphere with ground-based instrumentation, and is often used to remove the effect of the atmosphere from measurements of, for example, aerosol optical thickness or ozone.[1][2] It is based on repeated measurements with a Sun photometer operated at a given location for a cloudless morning or afternoon as the Sun moves across the sky. It is named for American astronomer and physicist Samuel Pierpont Langley.

  1. ^ Blumthaler, M.; Ambach, W.; Blasbichler, A. (1997). "Measurements of the spectral aerosol optical depth using a sun photometer". Theoretical and Applied Climatology. 57 (1–2): 95. Bibcode:1997ThApC..57...95B. doi:10.1007/BF00867980. S2CID 121460704.
  2. ^ Adler-Golden, S. M.; Slusser, J. R. (2007). "Comparison of Plotting Methods for Solar Radiometer Calibration". Journal of Atmospheric and Oceanic Technology. 24 (5): 935. Bibcode:2007JAtOT..24..935A. CiteSeerX 10.1.1.535.6089. doi:10.1175/JTECH2012.1.

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Langley extrapolation

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buildings and allow for the presence of roads and cars to allow for extrapolation outside of the picture. Outcrops and appendages were added to break...

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performed by Neanderthals. The limits of the archaeological record stymie extrapolation from burial to funeral rites, though evidence of grave goods and unusual...

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(2012). Word bearers omnibus (print). Word Bearers. Cover art by Clint Langley (omnibus ed.). Nottingham, UK: Black Library. ISBN 978-1-84970-104-4. ——...

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oceanography to measure the volumetric rate of transport of ocean currents. The langley (symbol Ly) is used to measure solar radiation or insolation. It is equal...

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demonstration of fusion in the lab. 1938 Kantrowitz and Jacobs of the NACA Langley Research Center built a toroidal magnetic bottle and heat the plasma with...

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Laws". The Atlantic. January 18, 2014. Retrieved January 18, 2014. Karen Langley (October 2, 2012). "Judge blocks enforcement of portion of Pa. voter ID...

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