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SeaDataNet device categories
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NTR: Parametric sub-bottom profilers #17

Closed louatbodc closed 1 year ago

louatbodc commented 1 year ago

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Parametric sub-bottom profilers

Definition

Marine seismic sources that send sound pulses into the sub-sea floor sediments. The sound pulses bounce off the sea floor and subsequent buried sediment layers according to differences in their acoustic impedance (hardness) and in turn, their density. Parametric sub-bottom profilers are non-linear systems that transmit two different higher frequencies that interact during sound propagation to generate a resultant lower operating frequency with narrow bandwidth. They typically operate at frequencies greater than 2 kHz and penerate to several hundreds of metres.

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louatbodc commented 1 year ago

This request is linked to a discussion in the L22 repository https://github.com/nvs-vocabs/L22/issues/155

louatbodc commented 1 year ago

New term created:

396 - parametric sub-bottom profilers

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