TM Bands' Remote Measure Test for Seawater's Multi-factors—First Step Research on Remote Sensing for Bay's Self-Purificability

by Xiaoxiang Chen, Zhongshan Univ, Guangzhou, China,
Tiefang Li, Zhongshan Univ, Guangzhou, China,
Jin Li, Zhongshan Univ, Guangzhou, China,

Document Type: Proceeding Paper

Part of: Coastal Zone '93


Marine Remote Sensing is different from Land Remote Sensing in someways, one of which is that ocean is a 3-d fluid with large changes in time and space. So the field sampling in sea-water, which are used to demarcate remote sensed data, must keep strictly in the time of a satellite passing by, otherwise, the field sample will loss meaning. For a broad sea area, a large number of field samples is not only very expensive but also difficult. 1. The models can be well used to estimate some factors in seawater only by using TM bands' remotely measured data which are acquired at sea surface. 2. As the action of water-inter-exchange, the factors in seawater are well-distributed in a small area except at the border, of water-mass. So the models can be easily transformed from using remotely measured data to using satellite remotely sensed data. 3. Because remote measure can be carried out at sea surface at very high special resolution and much faster than conventional biochemical method, so it will be a potential powerful tool to monitor bay's environment even in cloudy weather.

Subject Headings: Seas and oceans | Sea water | Remote sensing | Satellites | Terrain models | Data collection | Chemistry | Computer networks | China | Asia

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