| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 4483298 | Water Research | 2011 | 10 Pages |
The acoustical properties of bottom sediments in two lakes were shown to be strongly correlated with clay content, organic C and total N concentrations, and other important sediment properties. The fractal dimension of the bottom echo was more strongly correlated with sediment physical and chemical properties than energy-based measures. The fractal dimension was also related to rates of PO4-P and NH4-N release from intact sediment cores and sediment oxygen demand. Measurements made at 430-kHz were more sensitive to differences in sediment properties than 201- or 38-kHz. Hydroacoustic measurements allow rapid assessment of properties important in lake restoration and water resource management.
► Sediment properties strongly correlated with acoustical properties of bottom sediment. ► Fractal dimension of bottom echo most strongly correlated with sediment properties. ► Fractal dimension also related to rate of nutrient release and sediment oxygen demand. ► Somewhat stronger correlations found at 430-kHz relative to 201- and 38-kHz. ► Hydroacoustic methods useful for habitat assessment, lake management and restoration.
