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|Optical remote sensing of intertidal flats|
|Brockmann, C.; Stelzer, K. (2008). Optical remote sensing of intertidal flats, in: Barale, V. et al. (Ed.) (2008). Remote sensing of the European seas. pp. 117-128|
|In: Barale, V.; Gade, M. (Ed.) (2008). Remote sensing of the European seas. Springer Science+Business Media: Heidelberg. ISBN 978-1-4020-6771-6. XXII, 514 pp., more|
Intertidal flats; Remote sensing; Marine
Intertidal areas are characterised by very high biodiversity and high productivity. Many of the intertidal flats worldwide are protected by the Ramsar Convention and other international monitoring programmes including also the Trilateral Monitoring and Assessment Programme for the Wadden Sea along the coasts of Denmark, Germany and The Netherlands. Remote sensing is a valuable tool for providing the cost efficient monitoring required by these directives. This includes mapping from airplanes, interpretation of aerial colour and infrared images, as well as classification of multispectral and hyperspectral data from airborne or spaceborne instruments. Information concerning different components of intertidal flats, namely the sediment type, macro- and microphytes and mussel beds, can be obtained by applying classification methods to these optical remotely sensed data. Comparison of the remote sensing data with in-situ measurements is an important step for improving the tuning parameters of the classification method and for validating the results. Examples are shown for a classification of the sediment type, macrophytes and mussel beds in the German Wadden Sea area. The methods presented here are currently being transferred into operational monitoring programs.