97 terms


How does Naval Oceanography support the Information Dominance Mission
Predicts weather and ocean conditions thereby assisting in the foreseeable intelligence collection, capabilities of the adversary. Serves on panel discussing issues, collaboration, important issues related to corps
Various type of METOC products available through Naval Oceanography Portal(NOP)
USNO - Naval Abservatory
JTWC - Joint Typhoon Warning
NOOC - Oceanography Operations Center
FNMOC - Fleet Numerical Meteorological Oceanography Center
NAVO - Oceanography Office
Geostationary Operational Environmental Satellite (GOES)
Highest Satellite, No high resolution
Polar Operational Environmental Satellite
Very High resolution provides sea heights
Defense meteorological Satellite Program
Primary Function: Collect terrestrial, space environment, and Earth surface data
The National Polar - Orbiting Operational Environmental Satellite System (NPOESS)
5 major sensors on board 100 minute period
Tropical Rainfall measuring Mission (TRMM)
Measures precipitation patterns
Wind direction/speed
Direction wind blowing
True - True north
Relative - depending on direction of own ship
Ambiant Air
Temperature of the surroundings
Wind chill
felt air temperature on exposed skin due to the wind
Heat Stress
Excessive heat on the body
All forms of moisture that falls to the earth's surface
relative humidity
Measure amount of water in the air
Sky condition
appearance of the sky
Atmospheric pressure
pressure of atmosphere at any point measured in mill bars or inches
Air Mass
Body of Air with similar temperature characteristics
Cold/WARM/Occluded Front
Leading edge of warm/cold mass
Cold front overtakes warm front
Restricted visibility
Limited visibility due to mist, fog, rain, snow
Water Droplets, ice crystals in air near surface
Appearance of sun on easter horizon, disappearance on west horizon
First appearance/disappearance of moon over horizon
Lunar Illumination
Reflection of moonlight from clouds and terrain
Tropical Depression
Individual storms max 33 knots
Tropical Storm
Storms with speeds of 35-64 knots
circular storm 64 knots and develops an eye in the middle
Form of weather, lightning, thunder
Rotating column of air in contact with the earth
Funnel Cloud
Funnel shaped cloud of condensed water droplets
Effects on military Operations - Visibility
Fog, Haze, and Rain reduces reduces visual ability
Effects on military Operations - precipitation
Snow, rain affects mobility
Effects on military Operations - Winds
Influences aircraft and artillery operations
Effects on military Operations - Cloud Cover
Affects aviation reducing visibility
Effects on military Operations - Temperature and Humidity
Affects personnel, equipment and storage
Ocean Eddies - Cold
Swirling of fluid and reverse current when floating past an obstacle
Counter Clockwise
Ocean Eddies - Warm
Swirling of fluid and reverse current when floating past an obstacle
instrument for recording water temperature as compared to depth
the production of light by living things
Sea Wave
Body of water in arched form breaking on shore
Wave height
Difference between crest and neighboring trough
Wave period
Size of wave in time
Swell wave
Seas moved out and away from areas where formed
Sea surface temperature
Alternate rising and falling of sea; twice lunar day
Ebb Tide
Receding outgoing tide
Flood Tide
Incoming Rising Tide
High Tide
When the moon is overhead
Low Tide
Sun and Moon aligned with the earth
Body of water traveling in definite direction
Open Ocean current
Flows over Geographic region
Littoral current
Strikes Beach, flows parallel with beach
Rip Tide
Flowing seaward from shore
Surf Zone
Ocean waves coming closer to the shore
Spilling Breaker Type
Crest destabilizes spilling over from of wave
Plunging Breaker Type
Wave curls over onto base of wave creating a splash
No Breakage
Ocean Fronts
Boundaries between water masses of different density
Ocean Bottom Topography
Starts with outer continental shelf to the continental slopes to the ocean floor
Ocean Bottom Composition
Terrigenous - Sediments of eroded material on land
Biogenic - Derived from Biological matter
Volcanogenic - Amounts of ash
Hydrogenous - precipitated from sea water
Cosmogenic - from interstellar space
Ocean Layers
Mixed Layer
Top 2.5 meters, same as temperature of the atmosphere
Ocean Layers
Temperature changes more rapidly than above or below
Ocean Layers
Deep Layer
1000 fathoms. There is little or no light
Effects on transmission of sound
Primary controller of sound
speed increases 3.2 m/sec for ever 1 degree increase
Effects on transmission of sound
Sound speed increases w/pressure
Effects on transmission of sound
Sound speed greatest in fresh water or high salinity
Relationship of METOC to GEOSPATIAL Intelligence
METOC is intelligence layer of GEOINT information base
Impacts of environmental conditions
Anti-submarine warfare operations
variations in temperature, salinity and pressure affect travel and communications
Impacts of environmental conditions
Naval Special Warfare operations
Terrain restrictions, time of day, adverse weather
Impacts of environmental conditions
Mine Warfare operations
surface winds, wave action, visibility, daylight hours
Air defense operations
weapon systems, safety of personnel
Information Warfare operations
Proper collection management of assets
Humanitarian Assistance/ Disaster Relief operations
Employment of forces, communications
Chemical, Biological and Nuclear Warfare
Retrograde contaminated equipment
Strike Warfare
Temperature, Salinity, and Pressure
Impacts of atmospheric conditions on EM propagation of radar beam
Standard refraction
Bent downward due to temperature, moisture and pressure
Impacts of atmospheric conditions on EM propagation of radar beam
Bent towards surface of the earth
Impacts of atmospheric conditions on EM propagation of radar beam
No change; Increase in height
Impacts of atmospheric conditions on EM propagation of radar beam
Extends radar ranges
Weather conditions of warning
Small craft
Winds 20-33 kts
Weather conditions of warning
Winds 34-70 kts
Weather conditions of warning
Winds 48 kts or higher
Weather conditions of warning
Local wind advisory
North Hemisphere transmitted in AUTODIN
Southern Hemisphere transmitted in local area
Weather conditions of warning
High Seas
Issued every 12 hours for wave heights of 12 ft.
Weather conditions of warning
Severe thunderstorms/tornado
wind gusts 50 its or more/ detected by radar or sighted
Weather conditions of warning
Forecast to hit area
Weather conditions of warning
Winds 64 kts or more
Weather conditions of warning
Extreme Temperature
Heat Index/Wind Chill reflected
Weather conditions of warning
Heavy Snow
Snow Mixed freezing precipitation
Weather conditions of warning
Flash Flood
Heavy Rainfall may produce flash flood
Weather conditions of warning
Hazardous Surf
Abnormally high tides to affect operations
Weather conditions of warning
Earthquakes can cause Tsunamis
Stormwatch; not anticipated
Possible threat within 72 hours
Possible within 48 hours
Anticipated within 24 hours
Occurring or within 12 hours
Nautical Almanac
Convenient form of astronomical data for celestial navigation
Astronomical Almanac
Precise prediction of Astronomical phenomena