1969
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status
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Datasets with homogeneous quality (the meaning of IHO) composed of datasets done by Shom.
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Datasets with homogeneous quality (the meaning of IHO) composed of datasets done by Shom.
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Datasets with homogeneous quality (the meaning of IHO) composed of datasets done by Shom.
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Datasets with homogeneous quality (the meaning of IHO) composed of datasets done by Shom.
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Datasets with homogeneous quality (the meaning of IHO) composed of datasets done by Shom.
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Datasets with homogeneous quality (the meaning of IHO) composed of datasets done by Shom.
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Datasets with homogeneous quality (the meaning of IHO) composed of datasets done by Shom.
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Datasets with homogeneous quality (the meaning of IHO) composed of datasets done by Shom.
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Bathymetric datasets, collected before 1970, are historical surveys acquired with leadlines (and single-beam echosounders after 1930-1940). Quality controls and qualification, conducted by the Shom, on these datasets are not exhaustive. Datasets may present significant uncertainties and errors may remain.
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Datasets with homogeneous quality (the meaning of IHO) composed of datasets done by Shom.