Urban Expansion Dynamic and its Impact on Water Infiltration and Stream-flow in Huntsville City, Alabama
Abstract
A rapid change of land use from prime agricultural and forest covered land into housing units, manufacturing, retail and office space development is observed especially in the East-West, and North areas of the Huntsville city. This permanent land use change entails a change in surface moisture, hydrodynamics pattern and flush-runoff behavior of the surrounding streams and rivers on the receiving side of the stream network. This by itself leads to change in hydrologic runoff and infiltration properties leading to a completely new set of micro-hydrologic pattern. In this study we are going to assess the impact of the land use change on the future water infiltration and stremflow change of land surface using Landsat TM images from 1980 to year 2006 and map the increase of the proportion of impervious surfaces as a result of the above activities, and meteorological data over the past 100 years. Different image enhancing and classification technologies based on statistical, Adaptive Neural Network, and Fuzzy Logic Models will be used. Different handling approaches at the pixel level will be implemented. The result will be compiled into a collection of maps and discussed by correlating with the ground truth in the investigation area. As a result of this investigation the economic, ecologic, and institutional impacts over the coming three and decades will be modeled.
- Publication:
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AGU Fall Meeting Abstracts
- Pub Date:
- December 2010
- Bibcode:
- 2010AGUFM.H21G1146W
- Keywords:
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- 0493 BIOGEOSCIENCES / Urban systems;
- 1616 GLOBAL CHANGE / Climate variability;
- 1855 HYDROLOGY / Remote sensing