On the bottom map, there is a map about the Black population in the United States. As we all know, there is a huge amount of black population for the past hundreds of years in the South of the US, actually since the beginning of the United States when slavery was abolished. However, after all the wars and racism in the South, some of that population moved towards the North.
Friday, June 11, 2010
lab 8
On the bottom map, there is a map about the Black population in the United States. As we all know, there is a huge amount of black population for the past hundreds of years in the South of the US, actually since the beginning of the United States when slavery was abolished. However, after all the wars and racism in the South, some of that population moved towards the North.
Tuesday, May 18, 2010
Lab 7
Tuesday, May 11, 2010
lab 6
Wednesday, May 5, 2010
Lab 5
Monday, May 3, 2010
Geography 7 Lab 4
This experience of learning ArcGis was interesting. The tutorial took a long time, but that time spent on leaning a little bit about this software was worth it. Since I was very young, I learned geography back when I was in France simply because it was one of the major requirements there. Since I am a very scientific person (I am an electrical engineering major), and I learned geography since I was young, I know very well what everything we are learning is all about and the importance of understanding maps.
However, this class about geographical information systems is more than just learning maps. I knew when I was a kid that we could make maps. I could make them by hand or use special machines from satellites to camera to take pictures of the entire earth or part of a city. Ten to fifteen years ago, after Internet became popular and starting to become widely usable, I realized that many of those pictures taken could be found on the Internet with much more accuracy than with a camera. Being able to export pictures with great accuracy is great but the invention of one with the same accuracy was a tough challenge faced by engineers, especially computer scientists. After years of work, computer scientists were finally able to create softwares that enable us to create any type of map we desire with perfect accuracy to the human eye. One of the softwares was ArcGIS, which is the software we use for this class.
Using ArcGIS, you can make any map about any topic. It is possible that I could use this software later in my electrical engineering studies if I have to make map of the world showing the areas where the largest amount of semiconductor chips are made for example. In our case, we used an example of the proposed airport expansions. In the first map, we made a map showing the school and noise contour because of the effects of the surrounding airport. Then in that map, we created a road connecting other roads that avoids the school area. In the second map, we made a more detailed analysis of the land use and noise contour where we had different colors representing the amount of noise in the specific area that we are working on. To show even more detail, we made a bar graph of the number of parcels at different areas. In the last graph, we considered a very important and obvious map to include: the population density map.
In this lab, we made different maps with different subjects but are all linked to each other if we look at the big picture. We see here that using software to make maps are very useful in research subjects for school but also in real life. It could be very useful for people working on history as well as the people working in engineering. This tutorial showed us the wide quantity of functions that the ArcGIS software has and we will see in the next few weeks how this sofware can be applied to any topic in real life concerning maps. This is why we have a project at the end of the quarter that will use the ArcGIS software.
Tuesday, April 13, 2010
Lab 3 Digital Maps
View The biggest tennis tournaments in the world in a larger map
Neogeography means "new geography". To be more precise, and from the definition on Wikipedia, it is "the application to the usage of geographical techniques and tools used for personal and community activities or for utilization by a non-expert group of users". When we think about it, we use neogeography in our everyday lives. For example, when we want to go to public affairs to do the lab for geography 7, we walk through bruinwalk, then walk towards North Campus to reach Bunch, then Public affairs. However, there are many paths to get there and all of us have different paths. This is why we have neogeography. We use a map and we make our decisions on what directions to choose to go from place to place. However, we do not necessarily have to have our own map. We could make our own map.
Friday, April 9, 2010
Lab 2
1. The name of the quadrangle is "Beverly Hills" located in California, Los Angeles
2. The names of the adjacent quadrangles are: Canoga Park, Van Nuys, Burbank, Topanga, Hollywood, Venice and Inglewood.
3. The quadrangle was first created in 1966
4. The datum used to create this map is:
Vertical datum: North American datum of 1927
Horizontal datum: North American datum of 1983
5. The scale of the map is 1:24000
6. a) 1cm on the map is 24000cm or 240m on the ground. Therefore, 5cm is 240*5 = 1200m
b) 5 inches is 120000 inches on the ground or 120000/63360 = 1.89 miles
c) 1 mile or 63360 inches on the ground is 63360/24000 = 2.64 inches on the map
d) 3 km or 300000cm on the ground is 300000/24000 = 12.5 cm on the map
7. The contour interval is 20 feet
8. a) Public affais building: 34 degrees, 4'40''N and 118 degrees, 26'25'' W or 34.078 degrees N, 118.44 degrees W
b) Santa Monica Pier: 34 degrees, 0'30''N, and 118 degrees, 30'0''W or 34.01 degrees N, 118.5 degrees W
c) Upper Franklin Canyon reservoir: 34 degrees, 7'0'' N and 118 degrees, 24'30'' W or 34.12 degrees N and 118.408 degrees W
9) a) Greystone Mansion: 520 feet
b) Woodlawn cementary: 140 feet
c) Crestwood Hills Park: 700 feet
10) The UTM zone of this map is 11
11) The UTM coordinates for the lower left corner of the map is 3762800 N 361500 W
12) We know that we get a 1000 meter increment as we change UTM grid lines one by one for both the latitude and the longitude. Therefore, the area of the lower left corner will be:
(3764000-3762800)*(362000-361500) = 1200*500 = 600000 m^2
13) Attached
14) The magnetic declination is 14 degrees
15) The water flows from North to South
16) Attached
13) then 16)