A Regression-Based Prediction Model of Suspended Sediment Yield in the Cuyahoga River in Ohio Using Historical Satellite Images and Precipitation Data

Water

Lan Zhang¹  Hossein Hosseiny²  Richard Ampomah²  Kristin Sample-Lord²  Virginia Smith³ 

[1] Department of Biological and Agricultural Engineering, Texas A&Department of Civil and Environmental Engineering, Villanova University, Villanova, PA 19085, USA;M University, College Station, TX 77840, USA;

关键词: urbanization;    suspended sediment;    hydrology;    water quality;    remote sensing;    cuyahoga river;   

DOI  :  10.3390/w12030881

来源: DOAJ

【 摘 要 】

Urbanization typically results in increased imperviousness which alters suspended sediment yield and impacts geomorphic and ecological processes within urban streams. Therefore, there is an increasing interest in the ability to predict suspended sediment yield. This study assesses the combined impact of urban development and increased precipitation on suspended sediment yield in the Cuyahoga River using statistical modeling. Historical satellite-based land-cover data was combined with precipitation and suspended sediment yield data to create a Multiple Linear Regression (MLR) model for the Cuyahoga watershed. An R² value of 0.71 was obtained for the comparison between the observed and predicted results based on limited land-use and land-cover data. The model also shows that every 1 mm increase in the mean annual precipitation has the potential to increase the mean annual suspended sediment yield by 860 tons/day. Further, a 1 km² increase in developed land area has the potential to increase mean annual suspended sediment yield by 0.9 tons/day. The framework proposed in this study provides decision makers with a measure for assessing the potential impacts of future development and climate alteration on water quality in the watershed and implications for stream stability, dam and flood management, and in-stream and near-stream infrastructure life.

【 授权许可】

Unknown