Simulation of glint reflectance and determination of surface roughness of turbid coastal and inland aquatic waters

Zhenyi Lin, Yongzhen Fan, Wei Li, Charles Gatebe, Knut Stamnes

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Satellite remote sensing under glint conditions remains a challenging problem. Current glint correction algorithms rely on a crude estimation of the glint radiance. Measurements of complete sets of the bidirectional reflectance distribution function (BRDF) were obtained from the NASA Cloud Absorption Radiometer (CAR) deployed on an aircraft. We use an optimized version of the Discrete-Ordinate (DISORT3) Radiative Transfer Model (RTM) with a pseudo two-dimensional BRDF to simulate ocean glint reflectances measured at a near IR wavelength. The RTM was used for the first time to successfully reproduce the measurements by matching model outputs with observations. In addition, the RTM simulations were used to retrieve sea surface roughness and other parameters through a nonlinear Levenberg-Marquardt regression method.

Original languageEnglish
Title of host publicationRadiation Processes in the Atmosphere and Ocean, IRS 2016
Subtitle of host publicationProceedings of the International Radiation Symposium (IRC/IAMAS)
EditorsWerner Schmutz, Roger Davies, Luca Egli
ISBN (Electronic)9780735414785
DOIs
StatePublished - 22 Feb 2017
EventInternational Radiation Symposium 2016: Radiation Processes in the Atmosphere and Ocean, IRS 2016 - Auckland, New Zealand
Duration: 16 Apr 201622 Apr 2016

Publication series

NameAIP Conference Proceedings
Volume1810
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

ConferenceInternational Radiation Symposium 2016: Radiation Processes in the Atmosphere and Ocean, IRS 2016
Country/TerritoryNew Zealand
CityAuckland
Period16/04/1622/04/16

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