Open AccessImproved shadow correction for the marine optical buoy, MOBY
Author(s) -
Kenneth J. Voss,
Édouard Leymarie,
Stephanie J. Flora,
B. Carol Johnson,
Arthur C. R. Gleason,
Mark Yarbrough,
Michael Feinholz,
Terrance Houlihan
Publication year - 2021
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.440479
Subject(s) - radiance , azimuth , optics , shadow (psychology) , monte carlo method , buoy , physics , remote sensing , geodesy , geology , mathematics , statistics , psychology , oceanography , psychotherapist
A 3-D instrument self-shading correction has been developed for the MOBY upwelling radiance measurements. This correction was tested using the 23 year time series of MOBY measurements, at the Lanai, Hawaii site. The correction is small (less than 2%) except when the sun and collectors are aligned within 20° azimuth on opposite sides of the main MOBY structure. Estimates of the correction uncertainty were made with a Monte-Carlo method and the variation of the model input parameters at this site. The correction uncertainty was generally less than 1%, but increased to 30% of the correction in the strongest shadow region.