Analysis of aerial multispectral imagery to assess water quality parameters of Tibbee Creek, Clay County, Mississippi

摘要

The goal of this study was to demonstrate the application of aerial imagery as a tool in detecting water quality indicators in a three mile segment ofTibbee Creek in, Clay County, Mississippi. Water samples from 10 transects were collected per sampling date over two periods in 2010 and 2011. Temperature and dissolved oxygen (DO) were measured at each point, and water samples were tested for turbidity and total suspended solids (TSS). Relative reflectance was extractedfrom high resolution (0.5 meter)multispectral aerial images. A regression model was developedfor turbidity and TSS as a function of values for specific sampling dates. The best model was used to predict turbidity and TSS using datasets outside the original model date. The development of an appropriate predictive model for water quality assessment based on the relative reflectance of aerial imagery is affected by the quality of imagery and time of sampling.