Increased impervious surface area (ISA) resulted from urban and suburban development is a major environmental issue affecting hydrology and climate. One of the fundamental challenges in ISA research is to improve the accuracy of ISA data. We are developing advanced algorithms to extract ISA from high spatial resolution remote sensing imageries.

Hydrology modeling is known as an effective, widely used method to evaluate the impact of ISA on environment, especially watershed hydrology. Incorporating high resolution ISA information in hydrology modeling is a research challenge. We are using hydrology models to evaluate the influence of land-use and land-cover combination and spatial configuration, especially ISA features, on hydrologic response and water quality.

Relevant Publications
  1. Zhou, Y., and Y. Wang, A. Gold, P.V. August, and T. Boving, 2014. Assessing Impact of Urban Impervious Surface on Watershed Hydrology Using Simulation and Spatial Regression. GeoJournal. 79 (2), 155-166
  2. Zhou, Y., Y. Wang, A. Gold, and P.V. August, 2010. Modeling watershed rainfall-runoff relations using impervious surface-area data with high spatial resolution. Hydrogeology Journal, 18(6), 1413-1423
  3. Zhou, Y., and Y. Wang, 2008. Extraction of Impervious Surface Areas from High Spatial Resolution Imageries by Multiple Agent Segmentation and Classification. Photogrammetric Engineering and Remote Sensing. 74(7), 857-868.
  4. Zhou, Y., and Y. Wang, 2007. An Assessment of Impervious Surface Areas in Rhode Island. Northeastern Naturalist. 14(4), 643-650.