@prefix cpm: . @prefix dc: . @prefix dcat: . @prefix dce: . @prefix dct: . @prefix grg: . @prefix iop: . @prefix ns0: . @prefix ns1: . @prefix owl: . @prefix pav: . @prefix prov: . @prefix puv: . @prefix qudt: . @prefix rdf: . @prefix rdfs: . @prefix reg: . @prefix semapv: . @prefix skos: . @prefix sssom: . @prefix void: . skos:narrower . skos:member . skos:narrower . skos:narrower . skos:narrower . skos:related . skos:narrower . skos:related . skos:narrower . skos:altLabel "MIROS SM-050" , "MIROS SM-050"@en ; skos:broader , , ; skos:definition "A wave and surface current radar designed for the measurement of directional wave spectra and surface currents. The sensor was developed for stationary floating units such as drill ships and floating production storage and offloading units, but could be used in transits at speeds up to 6-8 knots (11-14 km per hour). Moreover, the radar's frequencies were chosen to obtain a strong echo from the capillary waves (normally present at wind speed above 2 metres per second) but reaches its best working performance at a wind speed of 3 metres per second or above. The instrument uses a dual footprint pulse Doppler method for wave measurements, and a microwave dual frequency method for measuring surface current. The radar observes the ocean surface in a semi-circle using 6 sectors of 30 degrees, scanning the surface in sequence. The system consists of the radar, the junction box, the indoor interface unit, the desktop system computer and the wave radar software. The instrument operates effectively between temperatures of -15 to 30 degrees celsius. The MIROS SM-050 has an accuracy of 5 percent for wave height and period, and and accuracy of 7 degrees for wave and current directions. The instrument also has an accuracy ranging from -0.05 to +0.05 metres per second for current speed."@en ; skos:inScheme ; skos:notation "SDN:L22::TOOL1093" ; skos:note "accepted"@en ; skos:prefLabel "MIROS SM-050 Wave and Current Radar Mk III"@en ; skos:related .