Space-earth based Integrated Monitoring System for Water Environment

Abstract

It is of great significance to establish a space-earth based integrated monitoring system to enhance the ability for water environmental risk prevention. Modern remote sensing technology has been used in surveying and providing urban water environment information combined with GIS spatial analysis and information management capabilities of water bodies such as lakes and reservoirs. In this paper, three monitoring methods are argued. With the use of satellite image, aerial photography and other means providing all-weather, omni-directional, multi-bands, multi-temporal remote sensing image information, the water temperature, total suspended solids, particulate matter, chlorophyll, transparency (turbidity), thermal pollution and other information could be obtained; secondly, with integrated methods of laboratory testing, water quality monitoring sites, the cross-section of the routine monitoring of benzene, phenol, COD, ammonia nitrogen, total phosphorus concentrations could be assessed; thirdly, with the use of online monitoring of toxic chemical substances, the arsenic, mercury concentration could be monitored. And the construction framework of the space-earth based integrated monitoring system for water environment was discussed. A whole scheme integrated online monitoring device, communication system, and software support system was proposed. Meanwhile, the key techniques of this system were addressed.