Closed louatbodc closed 1 year ago
This request is linked to a discussion in the L22 repository https://github.com/nvs-vocabs/L22/issues/155
New term created:
396 - parametric sub-bottom profilers
Please note it may take up to 24 hours for new terms to appear on our web services.
Required
Term name (PrefLabel)
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.
Sources/references
1 2
Optional
Synonym or acronym (AltLabel)
[Only use if the new device category has known synonyms or acronyms]
Mapping to external terminologies
[Is your submission related to any existing terms in external resources: please enter one or a list of URIs]
ORCID
[Enter your ORCID if desired]