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Water Management in Shanghai, China

© CNES 1994 . Multispectral SPOT Image of Shanghai | Shanghai, a metropolis of 16 million, suffers from a number of problems directly attributable to its rapid growth. One of the most urgent is the management of the city's water distribution and sewage disposal systems. To meet the demand generated by rapid urban growth and over industrialization throughout greater Shanghai, the local autorities must overhaul the city's entire water supply and distribution systems.

The first phase of the Shanghai Environment Project (SEP) analyzed the city's social and physical development to provide input for studies and design work on new systems tailored to the population's needs in terms of water treatment and distribution and effluent disposal. This included a detailed study of the Huangpu drainage basin, the city's main source of fresh water. The aims were to monitor drinking water quality, identify major source of water pollution in the Huangpu and its tributaries.

Spot Image supplied satellite imagemaps as input for a reliable and accurate geographic database. This involved acquiring high resolution satellite imagery of Shanghai province and producing imagemaps to make up for the absence of reliable, up-to-date maps. Spot Image processed Spot Panchromatic and Multispectral scenes to supply 30 imagemaps of Shanghai and environs at 1:25,000. These were delivered as photographic prints and as digital file on CD-ROM discs for easy loading into a planned geographic information system (GIS).

Geographic information based on satellite imagery was chosen to play a leading role in the major project for its reliability, accuracy and timeless, as well as its accessibility and ease of manipulation.

Coverage of Shanghai region with SPOT images . Water Management Project in Shanghai