Wednesday, November 18, 2009

Week 8 Lab Exercise


This Map of LA County Station Fire shows the extent of the fire expanding as time goes by. On August 29th, 2009 we see a small area of fire, but by September 1st, 2009 the area of fire has multiplied. The fire was fully contained at 7:00 p.m. on Friday, October 16th, 2009.We can conclude that fire spreads very rapidly and takes a long time to contain. The date of origins is said to be on August 26th, 2009 at approximately 3:30 p.m. A total of 160,577 acres we destroyed as a result of the fire.
























The second map on the right titled LA County Station Fire Thematic Map consists of many information. We shall analyze the affect or risk the spread of fire has on communities and natural areas such as parks. First of all, lets observe the parks or wildlife and trees that are endangered. We see that the center and the eastern part of the LA County consists the majority of parks. The Station Fire destroyed a large part of the wildlife already as we see in the map. It also overlaps the shaded park area colored light green, which means this area is destroyed. This seems like common sense, but fires tend to start where there are trees and this map indicates this theory.

After some research at the internet site (http://library.thinkquest.org/C003603/english/forestfires/causesoffire.shtml) I learned some causes for forest fire. Fire needs fuel, oxygen, and heat to survive, and trees and bushes are a great source of this fuel. Therefore, as mentioned above parks help initiate and keep the fire alive. The cause can be either natural or by human. Natural forces such as earthquakes, thunder, and erupting volcanoes can cause fire. Humans setting trees or branches on fire with a lighter can also be a cause.

Going back to the second map, let us analyze the risk the station fire has on the community. The map consists of information about the airport, cities, and hospitals. The airports are very far away from the station fire, therefore it is not a problem. Airports are essential for transportation so the destruction of airports can be a problem. There are a few hospitals and cities that are near the borders of the station fire extent. This is definitely not a good thing since human casualties can arise. Cities are a place full of people and hospitals are significant to help the injured. There are many major cities and hospitals pretty far from the fire, but ashes cause by fire can still affect them. Forrest fire is never a positive thing and can cause injuries and sicknesses. It can cause sicknesses since the ashes inhaled by people can cause cancer. I also learned the risk of flooding and mudslides presented by scorched terrain left behind by the burning from the internet site (http://cbs2.com/goldstein/Station.Fire.Mudslides.2.1179087.html) This can be a problem for the nearby hospitals and cities as well.

The use of GIS can help us analyze these kinds of things. GIS specialists work with related software and programs to create and maintain data and/or maps that can be combined with geographically referenced data. These types of information can be used to predict the outcome of incidents that as station fires and help us make adjustments to fix these problems instantly. GIS is a very powerful tool to solve many types of problems including station fires.

Reference

http://gis.ats.ucla.edu//Mapshare/Default.cfm

http://gis.lacounty.gov/eGIS/?cat=11

http://www.inciweb.org/incident/1856/

http://www.sacmetrofire.ca.gov/index.php?option=com_content&view=article&id=122&Itemid=138

http://cbs2.com/goldstein/Station.Fire.Mudslides.2.1179087.html

http://library.thinkquest.org/C003603/english/forestfires/causesoffire.shtml



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