Venice Under Water

The recent "acqua alta" (high water) in
Venice, Italy reached a depth of 1.56 meters (5 ft, 1 in.) on Monday -
the deepest flood in 22 years, and the fourth highest flood level in
recent history, claimed Venice's Tide Centre.






Venice under water - The Big Picture - Boston.com

Coastal Flooding

BBC NEWS | Science/Nature | Mangrove loss 'left Burma exposed'

BBC NEWS | Asia-Pacific | Will Burma's leaders let aid in?

BBC NEWS | Asia-Pacific | Burma's cyclone death toll soars

'Monsoon risk' to cyclone victims

More problems for those suffering the aftermath of the the cyclone...click here.

Flooding in Bangladesh

More than 1,500 people are now known to have died after a powerful cyclone ripped through southern and central Bangladesh.

Read the BBC news article here.

Follow the BBC's voyage through Bangladesh, looking at how a heating planet is changing people's lives....see it here.

Coastal flooding warning in the UK

Parts of the East coast of England faced severe flooding warnings today as a result of high tides and storm surges out to sea. Read about it at the sites below:

Flooding 'may put lives at risk'

The flood threat to England and Wales

Wind and tide bring flood threat

Geography trip to Sligo

Click on the image above for more photos from the geography fieldtrip to Sligo.

Wave animations

Wave Motion ...Anatomy of a Wave

Wave Motion

Wave Motion ...Wave Motion Animation

Wave Refraction Animation ...Wave Refraction Animation

More coastal animations

How waves reach the coast showing their main features

Destructive and Constructive waves and their main features

How the process of long shore drift works along a coast

Bars and Spits - How they are formed

How spits and salt marshes are formed

How coasts are eroded and cliffs, arches and stacks formed

Tides animation

Look at what happens to the tides over the course of a lunar month...click here for the animation.

Ocean tides vary during the Lunar month according to the combined influences of the Sun and Moon. In this animation the viewpoint is fixed relative to the Earth, and so the Sun and Moon appear to orbit clockwise. The Sun is much more massive than the Moon, but is also much further away. Thus, its gravitational pull (yellow arrow) is only about half that of the Moon (gray arrow).

Note the new moon (top, right) and spring tide (left) at the start of the month. As the month proceeds, the Sun's apparent motion is faster than the Moon's. Thus the Moon's gravitational pull lags behind that of the Sun, leading to a neap tide after 7 days. On day 14, the Moon is opposite the Sun, resulting in a full moon.

[by Declan DePaor]


Tides...spring and neap explained.

Sun, tides and moon interactions...click here.

Tides aniantion...another...click here.

Coastal animations

These animations are for use with the coasts module and all come from the Wycombe High School website.

Click here to see an animation showing the circular path of surface water as a wave passes. As the wave moves into shallow water, the wave length shortens and the wave height increases causing the wave to breaking.

Click here to see how waves with different energy levels can be either constructive or destructive, leading to beach construction or deconstruction.

Click here to see a demonstration of the process of longshore drift involving the swash and backwash of waves that break at an oblique angle in relation to the coastline.

Click here (School Members only) for a further animation demonstrating longshore drift (also known as littoral drift or beach drift).

Click here to see the formation of bay-mouth bars and spits as a consequence of longshore drift.

Click here for a stage, by stage animation about the formation of spits and salt marshes.

Click here to see a simulation of the processes of coastal erosion leading to caves, arches stacks and cliffs.

Click here to see how the dip of the bedding planes and the frequency of joints within the rock can control the angle and shape of the cliff profile.Click here (External Link) to find out how Lulworth Cove, on Dorset's Jurrasic Coast (External Link) has formed. Look out for the computer generated 3D animation.

Click here to see an animation that shows how desert sand dunes migrate under the influence of the wind. The processes also apply to coastal dunes where the surface vegetation has been damaged by trampling.

Click here to see spring and neap tides are caused by the gravitational pull of the moon and sun.

The Jurassic Coast

Click on the image above to link to other images of the Jurassic Coast which has been classified as a World Heritage Coastline.

Other links:

Dorset's World Heritage Coast

Jurassic Coast

Coasts - resources

Constructive and destructive waves animation

Cliffs and wavecut platforms animation

Longshore drift animation

Coastal Locations Live Local collection of named caostal locations

Coastal Features Live Local collection

Lyme Regis coastal mangement case study

Google Earth file for the Jurassic coast placemarks/photos/geology map)

Longshore drift at Bournemouth - Live Local

Beach cams on the Gold Coast

(All from Noel Jenkins blog site)

Ocean Waves

Click on the image below to see an ocean wave simulator.

Climate Change...Banglsdesh

BBC World have a 'Climate Watch' season on throughout April it includes a host of documentaries that might are relevant to parts of the course...especially interesting in terms of coastal hazards is the programme on April 7th/8th that looks at the effect of raising tides on Bangladesh's coastline.

click here (or the image below) to find out more.

Bangladesh

Physical Geography - Glaciers Volcanoes Earthquakes Tectonics

Physical Geography - Glaciers Volcanoes Earthquakes Tectonics

Bangladesh

Websites with information about Bangladesh...

BBC Country Profile
UN Country Profile

Floods in Bangladesh

General information on

• disaster management
• food security
• population and health
• energy
• environment
• gender

from the USAID Bangladesh website.

Geography Coastal Animations

Click here to see an animation showing the circular path of surface water as a wave passes. As the wave moves into shallow water, the wave length shortens and the wave height increases causing the wave to breaking.

Click here to see how waves with different energy levels can be either constructive or destructive, leading to beach construction or deconstruction.

Click here to see a demonstration of the process of longshore drift involving the swash and backwash of waves that break at an oblique angle in relation to the coastline.