SCOMO 



Kcal ; kg-cal — /iTilogram-caZorie. 



Kev — A'ilo-eleotron-volts. 



km — Ki]o7netei: 



LD — Zayer depth. 



LHW — Lower high iwater. 



LHWI — Zower Aigh water mterval. 



LLW — Lower /ow tvatev. 



LLWI — Zower low loater mterval. 



LOCO — Long cores. 



Loran — Long range navigation. (Low fre- 

 quency) 



LS— Zight Ship. 



LW — Zow "(oater. 



LWI — Zow water mterval. 



LWOST — Zow water of ordinary spring !'ides. 



LWQ — Tropic Zow H'ater ine^'uality. 



MAD — (il/agnetic ^Inomaly Z>etector) Gear used 

 to detect local changes in the earth's magnetic 

 field caused by a submerged submarine. 



MAFOR— Weather forecast for shipping (WMO 

 CodeFMGlC). 



MAGNET — Worldwide Airborne Magnetic Sur- 

 vey (by the LT.S. Naval Oceanographic Office). 



MAMOS — il/arine J.utomatic il/eteorological 

 (9ceanographic /S'tation. 



MARID — Ship reports of the sea surface tem- 

 perature (UK only). 



MAWEC--7l/ilitary .4ircraft TFeather 6'ode. 



mc — yl/illicurie. 



Mev — yl/illion-electron-rolts. 



MHHW— il/ean Aigher high iwater. 



MHW — J/ean Algh water. 



MHWN — J/ean Aigh water neaps. 



MHWS — J/ean /ligh iwater springs. 



/J.C — Microcurie. 



/i/uc — Micro-microcurie. 



MILS — iH/issile /mpact Zocation <S'urvey. 



MLLW — il/ean lower low water. 



MLR — J/arine Zife i?esources (Program) . 



MLW — iJ/ean Zow tyater. 



MLWN — il/ean Zow water neaps. 



MLWS — yl/ean Zow water springs. 



Mn — Mean range. 



MOHO — J/o/iorovicic Discontinuity. 



MOHOLE— J/ohorovicic Hole (Project). 



MONAB — J/obile A^oise J^nalysis ^arge. 



MRI — Mea.n 7'ise /nterval. 



MSL — il/ean sea Zevel. 



MTL— J/ean ?;ide Zevel. 



MWL — ^/ean lunier Zevel. 



NACLI — Report of montliJy means for North A\- 

 1 antic Ocean ("WMO Code FM 73) . 



NAVEAM — A consecutively numbered radio mes- 

 sage originated by United Kingdom authorities 

 to disseminate urgent information atfecting nav- 

 igation in North European and Mediterranean 

 waters. See HYDROLANT, HYDROPAC. 



NEPAN TIROS— Cloud data obtained by satellite 

 pilot ography. 



NIS — TVational /ntelligence xS'urvey. 



NOMAD — (A'avy (9ceanographic and J/eteoro- 

 logical /lutomatic Z>evice) A platform de- 

 signed to monitor and report weather and ocean- 

 ographic data automatically. 



NORPAC— A^orthem /V^ific ( Project) . 



NORWESTLANT— /VorthwesiJ Mlantic (Proj- 

 ect). 



Np — Neap range. 



NP-1' — A^orth Pole^l ; a Russian drift station. 



N.T.P. — A^ormal Zemperature and /pressure. 



OMEGA — A long-range navigation system, giving 

 worldwide coverage with six to ten transmitter 

 (ground) stations, with an accuracy of 1 to 3 

 n. miles. 



OOP — t'ceanographic ^Observations of the Pacific. 



OS — Ooean dS'tation. 



OSV — Ocean /S'tation Uessel. 



OTDHC — 6>ceanographic 7'echnical Z>ata fi^an- 

 dling Committee. 



PDR — 1. (Feriscope Z>epth ^ange) The maxi- 

 mum range at which active sonar echo ranging 

 contact can be made with a submarine operating 

 at periscope depth. 



2. (Precision Z>epth Recorder) A device for 

 recording a sonic depth trace. 



PGR — Precision 6^raphic i?ecorder. 



PILOT SHIP — Upper w'ind report from ship 

 (WMO Code FM33C). 



PMR — Pacific J/issile Pange. 



Pn — ^Perigean range. 



PPI — (Plan Position /ndicator) The usual 

 means of presentation of sonar and/or radar 

 signals. 



PUFFS — Passive Z^nderwater Pire Control Sonar 

 Peasibility <S'tudy. 



PVC — Polyvinyl corer. 



r — Roentgen. 



rad — Padiation absorbed dose. 



RADIAC — (Pffldioactivity Petection /ndication 

 and Computation ) A term devised to designate 

 various types of radiological measuring instni- 

 ments or equivalent. 



RBE — Pelative Piological Pffectiveness. 



rem — Poentgen equivalent man. 



REMPAC — (Peflectivity J/easurements Pacific) 

 Twelve-kc normal incident bottom reflecti\dty 

 measurements. Using either towed or hull 

 mounted transducer. 



rep — Poentgen equivalent physical. 



RF — Padio Prequency. 



RUM — (Pemote Z7nderwat^r il/anipulator) A 

 device built to study the ocean bottom (down to 

 20,000 feet) for prolonged periods. It is 

 equipped with a mechanical arm and hand and 

 television cameras. 



R/V — Pesearch Fessel. 



SAU— (-S'earch/-4ttack Z:'nit) Part of an ASW 

 task group. 



S BT — iS'ubmarine b a thy thermograph. 



SCOMO— /S'atellite Collection of J/eteorological 

 Cbservations. 



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