The text covers the problems concerning optical properties and remote
sensing of turbid and surface-polluted oceans and lakes. In four
chapters Helgi Arst compares remote sensing data with data collected
from similar examination of clean waters. Chapter 1 provides an overview
of the main radiative and remote sensing characteristics and provides
discussion on the properties of optically active substances (OAS) in the
water and their variability and concentration, drawing on original data
obtained in the Baltic Sea region. Chapter 2 focuses on the
investigation of the influence of surface oil slicks on the reflection
and absorption of solar radiation for both calm and ruffled sea
surfaces. A model is provided for determining the temperature and the
reflected component in upwelling rough seas. Chapter 3 provides remote
sensing results obtained mainly for the Baltic Sea region, including
some lakes. Correlations between the concentrations of OAS, water
transparency and total remote sensing reflectance are investigated.
Chapter 4 deals with subsurface irradiance and optical classification of
turbid waters. This chapter analyses the different criteria of the
euphotic depth, drawing on a semi-empirical model for the estimation of
underwater light scattering. The conclusion provides discussion on the
results obtained.