Large scale limnological applications of an active optical remote sens
ing technique are described. An airborne Nd:YAG laser with frequency d
oubling and tripling facilities is used. Algorithms for inferring conc
entrations in phytoplankton chlorophyll (CHL) and dissolved organic ma
tter (DOM) are developed for inland water bodies. Through the analysis
of specific features of retrieved 2-D distributions of CHL and DOM, i
t is possible to characterize the surficial manifestations of various
fundamental thermohydrodynamic phenomena in lakes and water storage re
servoirs such as upwellings, cores, stream patterns, etc.