Oceanography 210 Exam II
Exceptionally high and low tides occurring when the sun, moon, and Earth
Spring Tide
aligned (new or full moon)
Tides of minimum range occurring when the sun and moon are at right ang
Neap Tide
relative to Earth (first and third quarters)
Mean Higher High Water (MHHW) Average of the higher of the two daily high tides over a period
Mean Lower Low Water (MLLW) Average of the lower of the two daily low tides over a period
Mean Sea Level (MSL) Average height of the ocean's surface, used as a reference for elevations
Barycenter Center of mass between two orbiting bodies (e.g., Earth and Moon)
Equilibrium Tide Idealized tide based on gravitational forces without landmasses or friction
Semidiurnal Tide pattern with two high tides and two low tides per day
Exceptionally high tide caused by the alignment of celestial bodies, often
King Tide
occurring at perigee
Perigee Point in the moon's orbit closest to Earth
Apogee Point in the moon's orbit farthest from Earth
Perihelion Point in Earth's orbit closest to the Sun
Aphelion Point in Earth's orbit farthest from the Sun
, Oceanography 210 Exam II
Amphidromic A point in the ocean with almost no tidal range around which tides rotate
Tidal Bore A surge of water moving upstream in a river during rising tide
Tidal Inlet Narrow waterway connecting the ocean to bays or lagoons
Tidal Current Horizontal flow of water associated with rising (flood) and falling (ebb) tid
Funnel Embayments Coastal inlets shaped like a funnel that amplify tidal ranges
Flood Delta Sediment deposit formed at the mouth of an inlet during rising tide
Ebb Delta Sediment deposit formed outside an inlet during falling tide
Flood Ramp Gradual sediment slope into a bay or lagoon during flood tide
Flood Channels Channels formed by incoming tidal water
Ebb Shield Sediment accumulation that directs ebb flow
Ebb Spits Elongated deposits formed by sediment transport during ebb tide
Spillover Lobes Sediment features formed when tidal flow overtops channel boundaries
Main Ebb Channel Primary channel where water exits a bay or inlet
Terminal Lobe Sediment accumulation at the end of a tidal channel
Swash Platform Flat area of beach periodically covered by wave swash
Channel Margin Linear Bars Sediment ridges along tidal channel edges
Exceptionally high and low tides occurring when the sun, moon, and Earth
Spring Tide
aligned (new or full moon)
Tides of minimum range occurring when the sun and moon are at right ang
Neap Tide
relative to Earth (first and third quarters)
Mean Higher High Water (MHHW) Average of the higher of the two daily high tides over a period
Mean Lower Low Water (MLLW) Average of the lower of the two daily low tides over a period
Mean Sea Level (MSL) Average height of the ocean's surface, used as a reference for elevations
Barycenter Center of mass between two orbiting bodies (e.g., Earth and Moon)
Equilibrium Tide Idealized tide based on gravitational forces without landmasses or friction
Semidiurnal Tide pattern with two high tides and two low tides per day
Exceptionally high tide caused by the alignment of celestial bodies, often
King Tide
occurring at perigee
Perigee Point in the moon's orbit closest to Earth
Apogee Point in the moon's orbit farthest from Earth
Perihelion Point in Earth's orbit closest to the Sun
Aphelion Point in Earth's orbit farthest from the Sun
, Oceanography 210 Exam II
Amphidromic A point in the ocean with almost no tidal range around which tides rotate
Tidal Bore A surge of water moving upstream in a river during rising tide
Tidal Inlet Narrow waterway connecting the ocean to bays or lagoons
Tidal Current Horizontal flow of water associated with rising (flood) and falling (ebb) tid
Funnel Embayments Coastal inlets shaped like a funnel that amplify tidal ranges
Flood Delta Sediment deposit formed at the mouth of an inlet during rising tide
Ebb Delta Sediment deposit formed outside an inlet during falling tide
Flood Ramp Gradual sediment slope into a bay or lagoon during flood tide
Flood Channels Channels formed by incoming tidal water
Ebb Shield Sediment accumulation that directs ebb flow
Ebb Spits Elongated deposits formed by sediment transport during ebb tide
Spillover Lobes Sediment features formed when tidal flow overtops channel boundaries
Main Ebb Channel Primary channel where water exits a bay or inlet
Terminal Lobe Sediment accumulation at the end of a tidal channel
Swash Platform Flat area of beach periodically covered by wave swash
Channel Margin Linear Bars Sediment ridges along tidal channel edges
