POSTER Session 4
Thursday, October 10
11:10–12:50
Poster Session | 1 | 2 | 3 | 4 | Instructions | Schedule at a Glance
ABSTRACT 728 | POSTER TH-128
CORRELATION BETWEEN TURBIDITY AND SCATTERING PROPERTIES AS AN INITIAL RECOGNITION FOR BACKSCATTERING COEFFICIENT ESTIMATION
Turbidity is a common water quality indicator measured in situ and estimated from space on a regular basis. Turbidity measurements are commonly conducted in natural waters, providing information about they transparency. Such measurements are performed with a wide variety of instruments using different geometries of the measuring system. Therefore values of turbidity cannot be converted into scattering properties. Our studies are preliminary work to finding correlation between backscattering coefficient and turbidity. We used the instrument’s weighting function which describes the sensor’s angular response in terms of scattering angles. We created a model of silica suspension described by a typical power-law size distribution divided into 22 narrow-size fractions and we applied the turbidimeter weighting function to calculate the part of the scattering signal bturb measured by the device. The volume scattering functions were calculated for each size fraction and, thus, the IOPs of interest were obtained, i.e., bb, bbp, and Bp. Our results showed that, the turbidimeter signal has a good linear correlation with bbp, but the best fit is obtained when we approximated bbp separately for particles below 13.8 μm and particles larger than 13.8 μm.
*Henryk Toczek, Gdynia Maritime University, Poland, [email protected], https://orcid.org/0000-0001-5091-3754
Kamila Haule, Physics Department, Gdynia Maritime University, Poland, [email protected], https://orcid.org/0000-0002-0254-9385
Maria Kubacka, Maritime Institute, Gdynia Maritime University, Poland, [email protected], https://orcid.org/0000-0002-5146-7722
Barbara Lednicka, Physics Department, Gdynia Maritime University, Poland, [email protected], https://orcid.org/0000-0002-2718-8598
Wlodzimierz Freda, Physics Department, Gdynia Maritime University, Poland, [email protected], https://orcid.org/0000-0002-9731-5003
Poster Session | 1 | 2 | 3 | 4 |
Instructions | Schedule at a Glance
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