If a tsunami causes the sea water rose as high as 50 m
Post on 21-Jun-2015
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Fundamental of GIS (ITM 521)
Spatial Analysis
STUDENT:
Agus Aris
G051110011
BOGOR AGRICULTURAL UNIVERSITY
MASTER OF SCIENCE IN INFORMATION
TECHNOLOGY
FOR NATURAL RESOURCE MANAGEMENT
SEAMEO – BIOTROP
2011Intoduction
A tsunami (plural: tsunamis or tsunami; from Japanese: lit. "harbor wave";[1]
English pronunciation: /suːˈnɑːmi/ soo-nah-mee or /tsuːˈnɑːmi/ tsoo-nah-mee[2]) is a
series of water waves caused by the displacement of a large volume of a body of
water, typically an ocean or a large lake. Earthquakes, volcanic eruptions and other
underwater explosions (including detonations of underwater nuclear devices),
landslides, glacier calvings, meteorite impacts and other disturbances above or
below water all have the potential to generate a tsunami
Tsunami waves do not resemble normal sea waves, because their
wavelength is far longer. Rather than appearing as a breaking wave, a tsunami may
instead initially resemble a rapidly rising tide, and for this reason they are often
referred to as tidal waves. Tsunamis generally consist of a series of waves with
periods ranging from minutes to hours, arriving in a so-called "wave train".[4] Wave
heights of tens of metres can be generated by large events. Although the impact of
tsunamis is limited to coastal areas, their destructive power can be enormous and
they can affect entire ocean basins;
Spatial analysis
The first analysis is the area of West Java that are at risk when there tsunami with the pair of 50m height
Figure 1. area with a height of less than and more than 50m
By the picture above the color purple shows that area at risk of tsunamis as
high 50m and the color Green shows that area not at risk of tsunami.
Second Analysis is the area of West Java that area at risk when there
tsunami with height between 10 or 20 m
Figure 2. area with a height between 10 or 20m
By the picture above the color blue shows that area at risk of tsunamis as
high between 10 or 20m and the color Green shows that area not at risk of tsunami
The third analysis the same way determine the cities in West Java is located
at an altitude of more than 1000m
Figure 3. Area with a height more than 1000m
By the picture above the color blue is area with a height more than 1000m
and the color green is area with a height less than 1000m, so if occur tsunami with a
height less than 1000m, so the blue color area would not at risk of tsunami
Fourt analysis create a water body with a height more and equal than 500m
Figure 4. Water body area with a height more and equal than 500 m
By the picture above the color green is water body with a height more and
equal than 500 m and the color brown not water body.
Fifth analysis is calculate area paddy field with a height more and equal than
500 m.
Figure 5. Paddy Field area with a height more and equal than 500m
By the picture above the color green is paddy field with a height more and
equal than 500m and the color brown not paddy field
Fifth analysis is calculate area settlement with a height more and equal than
1000 m.
Figure 6. Settlement area with a height more and equal than 1000m
By the picture above the color red is settlement with a height more and equal
than 1000m and the color brown not settlement
Last analysis is making distance matrix of the mountain with the city
Figure 7. Distance matrix of the mountain with the city
By the picture above is distance of the mountain with the city, where any given buffer distance of 10 km
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