Coastal flood

coastal floodingCoastal Flood Warningcyclone-generated wave washover
Coastal flooding occurs when normally dry, low-lying land is flooded by seawater.wikipedia
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Storm

stormswindstormstorm system
Storms, including hurricanes and tropical cyclones, can cause flooding through storm surges which are waves significantly larger than normal.
Coastal Storm — large wind waves and/or storm surge that strike the coastal zone. Their impacts include coastal erosion and coastal flooding

Storm surge

storm tidetidal surgestorm surges
Storms, including hurricanes and tropical cyclones, can cause flooding through storm surges which are waves significantly larger than normal.
A storm surge, storm flood or storm tide is a coastal flood or tsunami-like phenomenon of rising water commonly associated with low pressure weather systems (such as tropical cyclones and strong extratropical cyclones), the severity of which is affected by the shallowness and orientation of the water body relative to storm path, as well as the timing of tides.

Sea level rise

rising sea levelssea-level risesea level change
The Intergovernmental Panel on Climate Change (IPCC) estimate global mean sea-level rise from 1990 to 2100 to be between nine and eighty eight centimetres.
Widespread coastal flooding is expected with several degrees of warming sustained for millennia.

Coastal flood advisory

Coastal flood advisory, watch, warning (U.S.)
A Coastal Flood Advisory is issued by the National Weather Service of the United States when coastal flooding along the coast of the Atlantic Ocean, Pacific Ocean, or the Gulf of Mexico is occurring or imminent, but does not pose a serious threat to lives or property, but rather will simply pose a nuisance to people in the affected area.

Coastal flood watch

watch
Coastal flood advisory, watch, warning (U.S.)
A Coastal Flood Watch is issued by the National Weather Service of the United States when coastal flooding along the coast of the Atlantic Ocean, Pacific Ocean, or the Gulf of Mexico is possible.

Coastal flood warning

warning
Coastal flood advisory, watch, warning (U.S.)
A Coastal Flood Warning is issued by the National Weather Service of the United States when coastal flooding is either imminent or occurring along the coast of the Atlantic Ocean, Pacific Ocean, or the Gulf of Mexico.

Flash flood

flash floodsflash floodingflash-flood
Flash flood
Coastal flood

Flood

floodingfloodsflood control
Coastal flooding occurs when normally dry, low-lying land is flooded by seawater.

Topography

topographicaltopographictopographer
The extent of coastal flooding is a function of the elevation inland flood waters penetrate which is controlled by the topography of the coastal land exposed to flooding.

Seawater

saltwatersea watersalt water
The seawater can inundate the land via several different paths:

Subsidence

land subsidencesubsidedsubsiding
Extraction of water from groundwater reservoirs in the coastal zone can enhance subsidence of the land increasing the risk of flooding.

Erosion

erodederodingerode
Engineered protection structures along the coast such as sea walls alter the natural processes of the beach, often leading to erosion on adjacent stretches of the coast which also increases the risk of flooding.

Tropical cyclone

hurricanetropical stormhurricanes
Storms, including hurricanes and tropical cyclones, can cause flooding through storm surges which are waves significantly larger than normal.

Tide

tidallow tidehigh tide
If a storm event coincides with the high astronomical tide, extensive flooding can occur.

Atmospheric pressure

barometric pressureair pressurepressure
Low atmospheric pressure is associated with storm systems and this tends to increase the surface sea level; this is barometric setup.

Breaking wave

surfbreakerswave breaking
Finally increased wave breaking height results in a higher water level in the surf zone, which is wave setup.

Surf zone

Breaker zonesurf
Finally increased wave breaking height results in a higher water level in the surf zone, which is wave setup.

Intergovernmental Panel on Climate Change

IPCCIntergovernmental Panel on Climate Change (IPCC)International Panel on Climate Change
The Intergovernmental Panel on Climate Change (IPCC) estimate global mean sea-level rise from 1990 to 2100 to be between nine and eighty eight centimetres.

Inundation

inundatedinundateinundating
A rise in sea level alone threatens increased levels of flooding and permanent inundation of low-lying land as sea level simply may exceed the land elevation.

Tsunami

tsunamistidal waveseaquake
Coastal areas can be significantly flooded as the result of tsunami waves which propagate through the ocean as the result of the displacement of a significant body of water through earthquakes, landslides, volcanic eruptions and glacier calvings.

Ocean's (film series)

oceanmarinemaritime
Coastal areas can be significantly flooded as the result of tsunami waves which propagate through the ocean as the result of the displacement of a significant body of water through earthquakes, landslides, volcanic eruptions and glacier calvings.

Landslide

landslideslandslipdebris avalanche
Coastal areas can be significantly flooded as the result of tsunami waves which propagate through the ocean as the result of the displacement of a significant body of water through earthquakes, landslides, volcanic eruptions and glacier calvings.

Types of volcanic eruptions

volcanic eruptioneruptionvolcanic eruptions
Coastal areas can be significantly flooded as the result of tsunami waves which propagate through the ocean as the result of the displacement of a significant body of water through earthquakes, landslides, volcanic eruptions and glacier calvings.

Glacier

glaciersglacialglaciated
Coastal areas can be significantly flooded as the result of tsunami waves which propagate through the ocean as the result of the displacement of a significant body of water through earthquakes, landslides, volcanic eruptions and glacier calvings.