Research Papers

Middle-term metropolitan water availability index assessment based on synergistic potentials of multi-sensor data

[+] Author Affiliations
Ni-Bin Chang

University of Central Florida, Department of Civil, Environmental, and Construction Engineering, 4000 Central Florida Boulevard, Orlando, FL 32816

Y. Jeffrey Yang

U.S. Environmental Protection Agency, Office of Research and Development, National Risk Management Research Laboratory, Cincinatti, OH 45268

Ammarin Daranpob

University of Central Florida, Department of Civil, Environmental, and Construction Engineering, 4000 Central Florida Boulevard, Orlando, FL 32816

J. Appl. Remote Sens. 4(1), 043519 (March 22, 2010). doi:10.1117/1.3386582
History: Received August 14, 2009; Revised February 3, 2010; Accepted March 17, 2010; March 22, 2010; May 11, 2010; Online March 22, 2010
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Abstract

The impact of recent drought and water pollution episodes results in an acute need to project future water availability to assist water managers in water utility infrastructure management within many metropolitan regions. Separate drought and water quality indices previously developed might not be sufficient for the purpose of such an assessment. This paper describes the development of the "Metropolitan Water Availability Index (MWAI)" and its potential applications in assessing the middle-term water availability at the watershed scale in a fast growing metropolitan region - the Manatee County near Tampa Bay, Florida, U.S.A. The MWAI framework is based on a statistical approach that seeks to reflect the continuous spatial and temporal variations of both water quantity and quality using a simple numerical index. Such a trend analysis will surely result in the final MWAI values for regional water management systems within a specified range. By using remote sensing technologies and data processing techniques, continuous monitoring of spatial and temporal distributions of key water availability variables, such as evapotranspiration (ET) and precipitation, is made achievable. These remote sensing technologies can be ground-based (e.g., radar estimates of rainfall), or based on remote sensing data gathered by aircraft or satellites. Using a middle term historical record, the MWAI was applied to the Manatee County water supplies. The findings clearly indicate that only eight out of twelve months in 2008 had positive MWAI values during the year. Such numerical findings are consistent with the observational evidence of statewide drought events in 2006-2008, which implies the time delay between the ending of severe drought period and the recovery of water availability in MWAI. It is expected that this forward-looking novel water availability forecasting platform will help provide a linkage in methodology between strategic planning, master planning, and the plant operation and adaptations in response to the MWAI implications.

© 2010 Society of Photo-Optical Instrumentation Engineers

Topics

Sensors ; Water

Citation

Ni-Bin Chang ; Y. Jeffrey Yang and Ammarin Daranpob
"Middle-term metropolitan water availability index assessment based on synergistic potentials of multi-sensor data", J. Appl. Remote Sens. 4(1), 043519 (March 22, 2010). ; http://dx.doi.org/10.1117/1.3386582


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