Scattering calculations using a more detailed model of the multimode laser beam in the forward-scattering spectrometer probe (FSSP) were carried out by using a recently developed extension to Mie scattering theory. From this model, new calibration curves for the FSSP were calculated. The difference between the old calibration curves and the new ones is small for droplet diameters less than 10μm, but the difference increases to approximately 10% at diameters of 50μm. When using glass beads to calibrate the FSSP, calibration errors can be minimised, by using glass beads of many different diameters, over the entire range of the FSSP. If the FSSP is calibrated using one-diameter glass beads, then the new formalism is necessary to extrapolate the calibration over the entire range. -Authors
CITATION STYLE
Hovenac, E. A., & Lock, J. A. (1993). Calibration of the forward-scattering spectrometer probe: modeling scattering from a multimode laser beam. Journal of Atmospheric & Oceanic Technology, 10(4), 518–525. https://doi.org/10.1175/1520-0426(1993)010<0518:COTFSS>2.0.CO;2
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