Water Quality Mapping

Applied Analysis Inc. has developed comprehensive, proprietary software for water quality monitoring based on many years of research and experience in spectral analysis algorithm development. This software can be used to map several water quality parameters simultaneously. There are four primary advantages to this approach:

· Provides synoptic view of water body
· Permits repetitive coverage
· Uses multispectral data (not hyperspectral)
· Only requires low-cost data

	Chocktawhatchee Bay – 1989 Suspended Minerals on Landsat TM

Applications
· TMDL studies
· 301D listing
· Point source and non-point source pollution identification
· Trophic status indications
· Water clarity studies
· Water quality changes over time
· Track changes in bottom depth over wide areas
· Supplement point surveys
· Locate navigable passages
· Characterize outflow areas

Our QSC2 software processes multispectral and hyperspectral images to measure the water quality parameters of:

· Suspended Chlorophyll (Chl)
· Suspended Minerals (SM)
· Colored Dissolved Organic Carbon (CDOC)
· Depth

· Secchi Depth
· Turbidity
· Horizontal and vertical subsurface sighting distance
· Trophic Status Indicator (TSI)

The QSC2 process utilizes subpixel analysis software to compensate automatically for atmospheric effects, sun and sky reflections from the water surface, subpixel contributions from exposed land, and variations in the bottom material properties. The software allows for a direct measurement of the scene-averaged water column characteristics, enabling accurate and uniform water column characterization and scene-to-scene analysis.