Optical Remote Sensing of Intertidal Flats

Comparison of two feature selection methods for the separability analysis of intertidal sediments with spectrometric datasets in the German Wadden Sea

“…The assumptions made above cannot be approved, due to a lack of a detailed compositional analysis of the sediments. However, the spectral curves showed consistency with theoretical expectations and published research shows that VNIR (far red, red edge) and SWIR regions of the electromagnetic spectrum carry valuable information on vegetation and soil characteristics (Ibrahim et al, 2009;Verpoorter et al, 2014;Hadjimitsis et al, 2013;Decho et al, 2003;Baumgardner, 1985;Small et al, 2009;Bajwa et al, 2004;Gao and Zhang, 2006;Schmidt and Skidmore, 2003;Brockmann and Stelzer, 2008).…”

A review on substances and processes relevant for optical remote sensing of extremely turbid marine areas, with a focus on the Wadden Sea

“…Twenty years after Bartholdy and Folving (1986), it was possible to map all major properties on tidal Xats. Bare sand Xats, tidal Xats covered with diatoms, green macro-algae, red algae and sea grass (Kromkamp et al 2006) or Xats with the properties of macrophytes, several sediment types and mussel beds could be distinguished (Brockmann and Stelzer 2008) with data from Landsat TM images. SAR data was used for classiWcation of tidal Xats sediment types by Gade et al (2008), who used a technique based on assumptions of sand ripples.…”

“…SAR data was used for classiWcation of tidal Xats sediment types by Gade et al (2008), who used a technique based on assumptions of sand ripples. Tidal Xats in almost the entire Wadden Sea were mapped (Brockmann and Stelzer 2008).…”

Combining ALOS and ERS-2 SAR data for the characterization of tidal flats. Case study from the Baie des Veys, Normandy, France

“…The Advanced Land Observing Satellite (ALOS) spacecraft system with its three sensors, both optical and radar, offers a good opportunity to evaluate the potential for mapping the coastal sediments. The present paper evaluates the ALOS sensors for the study of tidal flats, which are known as intertidal areas of bare sand and mud, flooded and drained through branching channels (Brockmann and Stelzer, 2008). Dry-fallen tidal flats are regularly covered by the sea water with a period of 12 h and 25 min.…”