PARTICULATE BACKSCATTERING AND SUSPENDED MATTER CONCENTRATION RETRIEVAL FROM REMOTE-SENSED TURBIDITY IN VARIOUS COASTAL AND RIVERINE TURBID WATERS

RUDDICK, K.; NECHAD, B.; DOXARAN, D.; DOGLIOTTI, A.I.

Simposio; 2016 ESA Living Planet Symposium; 2016

The semi-empirical algorithm of [1] for the estimation of turbidity (T) from marine reflectance (Rrs) is calibrated and validated using a large dataset of in situ measurements collected in various waters, for use with any ocean colour hyperspectral sensor, and with Sentinel-2, Landsat 8 and Pléiades spectral bands. The relationship between particulate backscattering coefficient (bbp) and side-scattering (T) is investigated through simulation of Fournier-Forand phase functions, assuming variable particles size and composition. Two algorithms for the estimation of bbp at 850 nm and suspended particulate matter (SPM) from turbidity are proposed, and calibrated and validated using T, bbp and SPM in situ measurements in clear to extremely turbid waters.