Naval  Meteorology  and  Oceanography Command.—Commander, Naval Meteorology and Oceanography  Command’s  (COMNAVMET OCCOM) mission is to collect, interpret, and apply atmospheric and oceanic data and information for safety at sea; strategic and tactical warfare; and weapons  system  design,  development,  and deployment. The command provides meteorological, oceanographic, and mapping, charting, and geodesy services to increase the effectiveness of our Navy both in peacetime and in war. In addition, COMNAVMETOCCOM and the Superintendent, U.S. Naval Observatory, are responsible for the science, technology,  engineering,  operations,  and  those personnel and facilities associated with each, which are essential to explore the ocean and the atmosphere and to provide astronomical data and time for naval and related national objectives. Oceanography examines how naval operations are influenced by the physical environment  and  applies  its  findings  to  the development  of  technology  and  methods  for improving naval operations. The Naval Oceanographic Program embraces five major disciplines of physical science to investigate the nature and behavior of the ocean environment in which the Navy operates. The five major disciplines are:    Hydrography to collect data for the charting of the oceans and to establish geodetic references for navigation    Oceanography to define the characteristics of the water  volume  for  use  in  ocean  reporting  and prediction, and studies of underwater acoustics, water   dynamics,   corrosion,   and   other   factors influencing the performance of naval systems    Meteorology to define the characteristics of the atmosphere   for   use   in   weather   reporting   and prediction,   and   studies   of   upper   atmosphere winds  and  currents,  refractive  indices  for  radar performance, and similar factors    Astrometry   to   determine   the   position   and motions of celestial bodies required for accurate navigation,   operational   support,   and   use   in calculating   precise   geodetic   positions   and azimuth references on Earth    Precise Time to determine, provide, and manage the distribution of precise time and time interval (frequency),  both  atomic  and  astronomical,  for use   in   electronic   navigation   and   command, control, and communications Office of Naval Intelligence.—Director, Office of Naval   Intelligence   (ONI)   oversees   the   DoN’s intelligence   and   security   requirements   and responsibilities. Chief  of  Naval  Education  and  Training Command.—Chief  of  Naval  Education  and  Training (CNET)   is   responsible   for   assigned   shore-based education and training of Navy, certain Marine Corps, and  other  personnel.  Education  and  training  efforts support   the   fleet,   naval   shore   establishment,   Naval Reserve, security assistance program, and interservice training   programs.   CNET   also   develops   specific education and training afloat programs for the fleet and controls   Navy   support   for   youth   programs.   This command   acts   as   the   DoD   agent   for   the   Defense Activity   for   Nontraditional   Education   Support (DANTES) and executes the Navy’s responsibility for dependents’  education.  CNET  takes  part  in  research and development activities to develop and carry out the most   effective   teaching   and   training   systems   and devices. Naval  Doctrine  Command.—Commander, Naval  Doctrine  Command  (COMNAVDOCCOM)  is the  primary  authority  for  the  development  of  naval concepts and integrated naval doctrine and is charged with   development   and   evaluation   of   Navy   service specific policy and strategy. Naval Security Group Command. — Commander,   Naval   Security   Group   Command (COMNAVSECGRUCOM)   provides,   operates,   and maintains   an   adequate   naval   security   group.   It approves  requirements  for  the  use  of  existing  naval security   group   capabilities   and   resources   and coordinates   the   execution   of   approved   cryptologic programs. Naval Legal Service Command.—Commander, Naval  Legal  Service  Command  (COMNAVLEGSVC COM) administers the legal service program within the Navy  and  provides  command  direction  for  all  Naval Legal Service Command activities and resources. Naval Space Command.—Commander,   Naval Space  Command  (COMNAVSPACECOM)  provides direct space systems support to naval forces and helps prepare   the   naval   service   for   larger   space   systems involvement. This command supports the coordinated mission  and  hardware  development  for  future  space activities.  It  commands  and  supports  the  naval  space systems,   including   surveillance,   environmental monitoring,   communications,   and   navigation,   in support of national maritime strategy. 5-17