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Monitoring Algal Production in Akron Water Supply Reserviors in Northeast Ohio Using Satellite Imagery

Razzano, Mandy L.
http://rave.ohiolink.edu/etdc/view?acc_num=kent1310178613

Abstract Details

2011, MS, Kent State University, College of Arts and Sciences / Department of Earth Sciences.
Akron Water Supply has been plagued for years with drinking water treatment issues related to nuisance algal growth in their drinking water reservoirs, located in the Upper Cuyahoga Watershed in Northeast Ohio. Chlorophyll a concentrations analyzed by Akron Water Supply Laboratory from Lake Rockwell and Wendell R. LaDue Reservoir were used to investigate the effectiveness of spectral measurements as a predictive tool for estimating algal production. Surface and depth integrated water samples collected by Akron Water Supply were filtered and the spectral reflectance of the water color was analyzed on a LabSpec Pro spectrophotometer. Landsat 5 TM and 7 ETM images of Lake Rockwell and Wendell R. LaDue Reservoir were utilized for this study. Normalized Difference Vegetation Index (NDVI) values were calculated from spectral reflectance captured in the Landsat images and from the spectral reflectance recorded by the LabSpec Pro spectrophotometer on the filtered water samples. NDVI values were calculated from the actual pixel reflectance values within the Landsat images that were identified by the Universal Transverse Mercator (UTM) coordinates of the field collected chlorophyll a samples, and a NDVI interpolation value was calculated from the eight surrounding pixel reflectance values. The NDVI values that were calculated from the spectral reflectance on the filtered water samples did produce strong positive correlations for surface water samples (r2= .94) and depth intergrade samples (r2= .84) with field collected chlorophyll a concentrations. NDVI values from Landsat satellite images proved statistically significant to estimate chlorophyll a concentrations in Lake Rockwell and Wendell R. LaDue Reservoir for a wide range of chlorophyll a concentrations. Moderate negative correlation coefficients were established between Landsat NDVI actual pixel (r2= .48) and Landsat NDVI interpolation (r2=.57) with field collected chlorophyll a concentrations.
Donna L. Witter, PhD (Advisor)
Joseph Ortiz, PhD (Advisor)
Darren Bade, PhD (Advisor)
48 p.
Environmental Management
Landsat; NDVI; chlorophyll a; spectrophotometer

Recommended Citations

Citations

  • Razzano, M. L. (2011). Monitoring Algal Production in Akron Water Supply Reserviors in Northeast Ohio Using Satellite Imagery [Master's thesis, Kent State University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=kent1310178613

    APA Style (7th edition)

  • Razzano, Mandy. Monitoring Algal Production in Akron Water Supply Reserviors in Northeast Ohio Using Satellite Imagery. 2011. Kent State University, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=kent1310178613.

    MLA Style (8th edition)

  • Razzano, Mandy. "Monitoring Algal Production in Akron Water Supply Reserviors in Northeast Ohio Using Satellite Imagery." Master's thesis, Kent State University, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=kent1310178613

    Chicago Manual of Style (17th edition)

kent1310178613
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© 2011, all rights reserved.
This open access ETD is published by Kent State University and OhioLINK.