SeaMarc II

 (MI_Instrument) uuid: c45df735-917e-4943-be63-88bcdf0d2955
    citation:  (CI_Citation)
        title:   SeaMarc II Sonar
        date:  unknown
        identifier:  (MD_Identifier)
            code:   SeaMarc II
        citedResponsibleParty:  (CI_ResponsibleParty)
            organisationName:   Hawaii Mapping Research Group
            contactInfo:  (CI_Contact)
                phone:  (CI_Telephone)
                    voice:   1-808-956-8760
                    facsimile:   1-808-956-3188
                address:  (CI_Address)
                    deliveryPoint:   1680 East-West Rd, POST 815
                    city:   Honolulu
                    administrativeArea:   HI
                    postalCode:   96822
                    country:   USA
                onlineResource:  (CI_OnlineResource)
                    linkage:   http://www.soest.hawaii.edu/HMRG/cms/towed-sonar-systems/
            role:  (CI_RoleCode)  resourceProvider
    identifier:  (MD_Identifier)
        code:   SeaMarc II
    type:   Multibeam Echosounder
    description:   SeaMarc II is an interferometric, shallow‐tow, long‐range side‐scan sonar system that is capable of producing bathymetry as well as side‐scan images of the bottom in real time. The SeaMarc II and SeaMarc CL were first of their kind, with the SeaMarc II operating at 11 - 12 kHz range. The systems were co-created by the University of Hawaii and the Raytheon Company. The SeaMarc II was developed in the mid-1980's and completed 28 expeditions between 1986 and 1991.