Coastal Land Form
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As part of my graduate coursework on 'Coastal and Marine Environment', I am assigned to write a book chapter on coastal landforms. This presentation demonstrates the outline of my chapter. This presentation is being made based on the content given on the 'Coastal Geomorphology An Introduction' by Eric Bird and 'Fundamentals of Geomorphology' by Richard John Huggett.
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Ocean tides are long period waves that move through the ocean in response to the gravitational forces exerted by the moon and sun. There are two main types of ocean tides: meteorological tides, which are caused by the gravitational forces of the earth, moon and sun and are affected by weather factors; and diurnal tides, which occur farther from the equator in places like the Gulf of Mexico. High and low tides are generated by the moon's gravitational tidal forces, which cause bulges in the oceans on the side closest to the moon.
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Tsunamis are a series of waves caused by the displacement of a large volume of water, generally in an ocean or large lake. They are generated by earthquakes, volcanic eruptions, landslides, glacier calvings, meteorite impacts, or underwater explosions including nuclear tests. The principal generation mechanism of a tsunami is the displacement of a substantial volume of water due to earthquakes, landslides, volcanic eruptions, glacier calvings, or rarely, meteorites and nuclear tests. The 2011 earthquake and tsunami in Japan was a magnitude 9.0 quake that created a tsunami up to 40 meters high, warning countries near the Pacific Ocean of one of the most deadly tsunamis
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This document defines and provides examples of different types of natural phenomena including:
- Geological phenomena such as mineralogic and lithologic phenomena that are explained by geology.
- Meteorological phenomena such as weather events involving temperature, pressure, and moisture that are studied at various scales.
- Oceanographic phenomena under the sea like tsunamis and ocean currents.
- Specific atmospheric optical phenomena like lenticular clouds and circumhorizontal arcs formed by ice crystals in cirrus clouds.
roshan adhitya 4
This document defines and provides examples of different types of natural phenomena including:
- Geological phenomena such as mineralogic and lithologic phenomena that are explained by geology.
- Meteorological phenomena such as weather events involving temperature, pressure, and moisture that are studied at various scales.
- Oceanographic phenomena under the sea including tsunamis and ocean currents.
- Specific atmospheric optical phenomena like lenticular clouds and circumhorizontal arcs formed by ice crystals in cirrus clouds.
Natural disasters cópia
This document defines and describes different types of natural disasters. It discusses earthquakes, landslides, volcanic eruptions, floods, limnic eruptions, tsunamis, blizzards, hurricanes, droughts, hailstorms, heat waves, wildfires, health disasters, space disasters, avalanches, sinkholes, tornadoes, waterspouts, dusty devils and maelstorms. For each type of disaster, it provides a definition and some additional details about causes, characteristics and impacts. The document aims to inform about various natural hazards that can occur and their underlying Earth and weather-related processes.
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Ocean tides are long period waves that move through the oceans in response to the gravitational forces exerted by the moon and sun. There are two main types of ocean tides: meteorological tides caused by the gravitational forces of the moon and sun and affected by weather factors; and diurnal tides which occur far from the equator like along the Gulf of Mexico coast in the US. High and low tides are caused by the moon's gravitational tidal forces, which generate bulges in the oceans and earth on the side closest to the moon.
TSUNAMI in environmental geology
This document discusses tsunamis, or giant waves caused by earthquakes or volcanic eruptions under the sea. It defines a tsunami as a series of extremely long waves caused by a large and sudden displacement of the ocean, usually the result of an earthquake below or near the ocean floor. Tsunamis are caused by sudden movements of the ocean surface due to earthquakes, landslides on the sea floor, land slumping into the ocean, or large volcanic eruptions or meteorite impacts in the ocean. Tsunamis can have devastating effects by destroying coastal habitats, killing both land and sea animals, and polluting the ocean with dangerous chemicals.
Natural Disasters
The document defines and describes several natural hazards and disasters:
Flood is the overflow of water that submerges land not normally covered. Earthquakes are sudden releases of energy in the Earth's crust that create seismic waves. Tornadoes are rotating columns of air in contact with the ground and clouds. Volcanic eruptions violently eject lava, ash, and rock onto the surface. Typhoons are tropical cyclones common to the Northwest Pacific. Avalanches are large, fast-moving masses of snow that can bury people and damage structures. Tsunamis are long ocean waves caused by earthquakes or asteroids that come ashore. Drought is a prolonged period without rainfall causing moisture levels to drop. Hunger
Coastal Processes handout
This document discusses various coastal geological processes. It describes how coastal erosion occurs through hydraulic action, abrasion, attrition, and solution, forming features like wave-cut cliffs, platforms, sea caves, arches, and stacks. Coastal deposition happens when waves lose energy and drop sediment, forming features like spits, baymouth bars, sand bars, and barrier islands. Coastal inundation, or flooding, can result from storm surges, sea level rise, or tsunamis overtopping or breaching natural or man-made barriers. Coastal subsidence is also discussed, which is the sinking of coastal land caused by various geological processes.
Factors impacting the environment test review
This PowerPoint presentation discusses various environmental factors and natural hazards that impact the environment. It includes sections on ecoregions of Texas, weathering and erosion processes, droughts, tsunamis, volcanoes, hurricanes, deposition, lightning, and earthquakes. Specific examples and descriptions are provided for each topic.
Natural disasters Group4
Natural disasters connected with water can include tsunamis, storms, and floods. A tsunami is a series of waves caused by the displacement of a large volume of water, often triggered by earthquakes, volcanic eruptions, or landslides under the sea. Storms generally lead to severe weather like heavy rain, flooding, lightning, or strong winds that can damage property. A flood is an overflow of water that covers land not usually submerged, which can occur when a river, lake, or rainwater rises and spills outside of normal boundaries.
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Coastal Land Form
- 1. COASTAL LANDFORMS GEE-513 Coastal and Marine Environment Course Coordinator: Md. Tariqul Islam Lecturer Department of GEE,SUST Prepared by: Sudipta Roy
- 2. IN THIS LECTURE Processes that Influence Coastal Landforms Coastal Erosional Landforms Coastal Depositional Landforms
- 3. PROCESSES THAT INFLUENCE COASTAL LANDFORMS Waves Tsunamis Tides Storm Surges
- 4. WAVES Fig: Terms Associated with Waves
- 5. WAVES Fig: Kinds of Breaking Waves From High Speed moving Picture
- 6. TSUNAMIS Tsunamis are commonly produced by faulting of the sea floor, and much less commonly by volcanic eruptions, landslides or slumping, or by impacting asteroids and comets.
- 7. TIDES Tides are the movement of water bodies set up by the gravitational interaction between celestial bodies, mainly the Earth, the Moon, and the Sun.
- 8. GLOBAL PATTERN OF TIDAL RANGE (SPRING TIDE)
- 9. STORM SURGES Storm surges occur when strong onshore winds build up coastal water to an exceptionally high level for a few hours or days, and are most pronounced when they coincide with high springtides. (Fig: Storm Surges in Port Hedland, New Australia
- 10. COASTAL EROSIONAL LANDFORMS Shore Platforms and Plunging Cliffs 1. Sloping Shore Platforms 2. Horizontal Shore Platforms 3. Plunging Cliff Landforms of Cliffs and Platforms 1. Cliffs 2. Caves 3. Stack 4. Arch
- 12. SHORE PLATFORMS AND PLUNGING CLIFFS
- 13. SLOPING SHORE PLATFORM YORKSHIRE, ENGLAND
- 14. HORIZONTAL SHORE PLATFORM KAIKOURA PENINSULA, NEW ZEALAND
- 15. LANDFORMS OF CLIFFS AND PLATFORMS 1. Cliff
- 16. 2. CAVES
- 17. 3. SEA ARCH AT FLAMBOROUGH HEAD, YORKSHIRE
- 18. 4. SEA STACK AT FLAMBOROUGH, YORKSHIRE
- 19. COASTAL DEPOSITIONAL LANDFORMS Beaches Splits, Barriers and Related Forms Coastal Sand Dunes Cheniers Estuaries Marine Deltas Coral Reefs and Atolls
- 21. CHENIERS
- 22. ESTUARIES
- 24. MARINE DELTA
- 25. CORAL REEFS AND ATOLLS
- 26. THANK YOU