Remote sensing of temporal and spatial variations in pool size, suspended sediment, turbidity, and Secchi depth in Tuttle Creek Reservoir, Kansas: 1993

摘要: Abstract Four dates of Landsat Thematic Mapper data from 1993, April 9, July 30, August 15, and September 16, were used to assess temporal spatial patterns lake area dimensions suspended sediment concentration in Tuttle Creek Reservoir, Kansas. In excessive precipitation the Big Blue River Basin, throughout much Upper Middle West, led widespread flooding. Rains produced substantial erosion, movement down stream network, a runoff volume that filled U.S. Army Corps Engineers flood control structure. The 9 are before flood, 30 time maximum pool size use emergency spillway, document declining sizes. Three separate analyses performed on each four data. One set involved applying an existing physical model uses at-satellite reflectance for TM Band 3 estimate variations sediment, turbidity, Secchi depth reservoir. Maps estimated parameters water quality individual compared analyzed changes. second research method unsupervised classification (ERDAS ISODATA algorithm) Reservoir. Water areas grouped into coherent classes further analysis using two-step or layered procedure date. third GIS overlay technique compare surface with as marked U.S.G.S. 7-1/2 minute quadrangles. Comparisons major change between July, high levels mid-summer, decline concentrations by mid-September. study illustrates advantages remote sensing assist documenting relatively short-term environmental hazard. This also demonstrates value mapping geographic conjunction event.