Open AccessCalibration of an airborne oceanographic lidar using ocean backscattering measurements from space
Author(s) -
James H. Churnside,
Richard D. Marchbanks
Publication year - 2019
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.27.00a536
Subject(s) - lidar , calibration , remote sensing , optics , satellite , scattering , backscatter (email) , radiometric calibration , environmental science , light scattering , physics , geology , computer science , telecommunications , quantum mechanics , astronomy , wireless
We used satellite measurements of the optical backscattering coefficient to calibrate the signal from an airborne oceanographic lidar. This technique provided the radiometric calibration for the lidar signal and a local estimate of the ratio of the particulate backscattering coefficient, bbp, to the volume scattering function at the scattering angle of 180°, βp(180). Results using an ordinary regression, a reduced major axis regression, and a least squares bisector suggest that either of the latter two provided a better result than an ordinary regression. The statistical errors in the two recommended regressions, the difference in calibrations factors between them, and the difference between these and a laboratory calibration were all less than 5%.