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Bathymetric data or underwater topography are vital to marine commerce, =
industry, environmental management and monitoring. Bathymetry is traditiona=
lly charted via shipboard echo sounding or via airborne LADS (Laser Airborn=
e Depth Sounding) and then interpolated into the DEM data sets.
Optical remote sensing methods for mapping bathymetry offer an alternative=
which can be more cost effective and efficient, especially over large area=
s of clear water bodies. Remote sensing techniques are non-invasive and par=
ticularly attractive for remote areas. Applications of sophisticated proces=
sing of satellite or airborne imagery in clear, shallow coastal zones allow=
s for derivation of accurate underwater topography. Remote sensing products=
can serve as stand-alone information in inaccessible areas or can be used =
in combination with traditional in-situ data to generate a variety of infor=
mation layers.
Satellite sensors: QuickBird, WorldView, IKONOS, MERIS
Application Area |
Description |
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Multispectral satellite based water depth map= ping |
Bathymetry, multispectral |
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SAR and multispectral bathymetry mapping[2]= p> |
SAR, underwater topography |
References:
[1] Sabine Ohlendorf, Andreas M=C3=BCller, Thomas Heege, Sergio Cerdeira= -Estrada and Halina T. Kobryn (2011): "Bathymetry mapping and sea floor cla= ssification using multispectral satellite data and standardized physics-bas= ed data processing", Proc. SPIE 8175, 817503; doi:10.1117/12.898652
[2] Pleskachevsky, A., Lehner, S., Heege, T., Mott, C. (2011): Synergy a= nd fusion of optical and synthetic aperture radar satellite data for underw= ater topography estimation in coastal areas. Journal of Ocean Dynamics, Spe= cial Issue =E2=80=93 MREA. DOI 10.1007/S10236-011-0460-1
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