Property:Extended movie description
From CSDMS
This is a property of type Text.
T
W
P
100 years of permafrost warming in Alaska.
This movie uses climate model data and soil mappings as input. The movie only shows the evolution of the mean annual temperature at 1 m depth for each gridcell. A significant warming can be seen. +
B
A close up of bed load transportation with a still camera frame.
50g/m/s 7.0mm d50
50g/m/s 0.20mm d50
Grain Size ratio = 35 +
D
A debris flow occurring in California. +
L
A helicopter flies over a landslide scar in Maierato, Southern Italy.
Most of the sliding happened on February 15th, 2010, but the area is notorious for landsliding and the hillslope was moving previously as well.
This area of Italy, Calabria, is known for its landslides. Heavy rains preceded the event and caused ~100 other smaller slides in the region. +
D
A high speed movie illustrating the formation of cyclic steps in an experimental drainage basin subject to constant base level fall (done to model a constant uplift of the basin). +
L
A major landslide in Japan takes out part of the highway 168. The first coverage shows the vegetation sliding by the camera. Helicopter footage shows the landslide scar in the perspective of the river valley. The comments associated with this film indicate that two typhoons preceded this events. +
D
A series of landslides occurred in late April and May 2012 in the headwaters of the Seti River. These caused a landslide dam wall, which blocked the normal flow of river. Seti river means 'White River', because it normally has the typical milky color of rivers that drain a glaciated area. However, because the river was bloked it was unusually clear, untill May 5th. Early in the morning of May 5th, 2012 a large rockfall occurred high on the ridgeline of the Annapurna massive, the rock and debris came down with tremendous force. Along its steep course the rock melted snow and ice and picked up more debris. This debris and te floodwave hit the dammed up Seti River and caused the earlier landslide dam to abruptly break.
The video shows the slurry of water and sediment traveling through the Seti River valley. The initial pulse of debris and hyperconcentrated muddy water damaged many houses and probably 72 people were killed. This region is conducive for these natural hazards, the relief is extremely high and avalanches and rockfalls are common. The downstream rivers have eroded into lake bed sediments and thus can easily erode more. Furthermore the monsoonal climate of the region can trigger unstabilities due to high rain events. +
V
A small plane is flying around the ash cloud of Eyjafjalljokull. This footage was recorded on April 22nd, 2010, a few days after the second phase of the eruption started. The second phase of the eruption was in the centre of Eyjafjallajokull glacier. Although it was cloudy flying towards the glacier close to the center of the eruption the air warms up so much that clouds evaporate and you will get a glimpse of the slope of the vulcano.
Interesting to note the visible soundwaves from the explosions in the final section of the film..somehow caught by the sun glinting off steam emitted as the volcano melts the surrounding ice cap. +
T
A small river confluence in Illinois with an asymmetrical confluence and a concordant bed.
The different cross-sections in the example focus on mixing of rivers with different water temperatures (thermal mixing). The large-scale engulfing by the ML eddies promotes mixing. The large-scale oscillations of SOV cells play an important role in the mixing between the two streams. +
S
Animation of coastal beach formation during summer season. This cycle would be typical for for example beaches in California. +
W
Animation of waves affecting a beach profile during winter. This animation is typical for example for California. +
J
April 2010, a jökulhlaup resulting from the volcanic eruption near
Eyjafjallajökull.
This movie shows how the generated meltwater and debris spills out of side-gullies and along the valley wall. When the flow reaches the local valley bottom, the sandur surface it fans out. The helicopter flies low over the flow in the sandur plain and one can see standing waves being generated by the shallow fast-moving water. This is an indication that large bedforms are actively formed and migrating over the bottom. It can also been seen that even over the floodplain the flow has erosive effect and incises an estimated > 1,5 m banks. +
C
BFM TV, a french television network (http://www.bfmtv.com/), captured spectacular footage of bluff failure occurring in coastal France. BFM TV reported that ~30,000 tons of material was moved.
Also discussed at:
http://blogs.agu.org/landslideblog/2013/07/23/rock-topple-france/
http://coastalcare.org/2013/07/normandy-cliff-collapses-onto-beach-at-st-jouin-bruneval/ +
B
Barrier Islands migrate over the shelf in response to sea level changes. Here the sandy deposits that form the actual island, first prograde outward, during sea level fall and then retrograde when sea level is coming up again. +
Bed load transport due to moving water flowing over the bedload surface from multiple angles. All scenes are slowed down. The first is a mixture of 95% sand and 5% gravel. The second is a mixture of 80% sand and 20% gravel. The third is the same mixture. +
Bed load transportation with a moving camera frame.
50g/m/s 7.0mm d50
50g/m/s 0.20mm d50
Grain Size ratio = 35 +
W
Bernhard Lehner (department of geography, at McGill University) and others worked for years together to establish a world database on reservoirs. Over 5000 reservoirs are included presently and presented over time in this visualization.
Data can be found at: http://sedac.ciesin.columbia.edu/data/collection/grand-v1 +
B
Bioturbation is the mixing of plant and other organic matter into soils and sediments by biotic activity. It is one of the fundamental processes in ecology, as it stimulates decomposition, creates habitats for other (micro)fauna and increases gas- and water flow through the soil.
This time lapse movie shows bioturbation by 3 earthworms species:
- Lumbricus terrestris (an ’anecic’ earthworm, feeding on leaves and living in deep vertical burrows; 2 individuals present)
- Lumbricus rubellus (an ’epigeic’ earthworm, feeding on leaves and living in shallow, non-permanent burrows; 2 individuals present)
- Aporrectodea caliginosa (an ‘endogeic’ earthworm, feeding on decomposed organic matter and living deeper in the soil; 3 individuals present).
Poplar leaves were applied on top of the soil as food for the earthworms. Different soil layers were simulated by mixing a topsoil (rich in organic matter) with quartz sand in various ratios.
The recording lasted 1 month.
This movie was made in collaboration with scientists from the Department of Soil Quality of Wageningen University, The Netherlands.
Soil screening: I.M. Lubbers & J.W. van Groenigen
Marie Curie Alumni: G.B. De Deyn
Microphonography: Urban Utan
Time lapse photography © Wim van Egmond - 2014
With the support of the Marie Curie Alumni Association +
