Combining lake and watershed characteristics with Landsat TM data for remote estimation of regional lake clarity

► We modeled clarity of Maine lakes with Landsat bands 1 and 3. ► Average lake depth and watershed wetland area improve model accuracy. ► We found separate models fit eastern and western Maine. ► Remote estimates were more accurate for eutrophic and mesotrophic lakes. ► Lake and landscape features should be considered in remote water quality monitoring.