Thursday, May 31, 2012
Discussion/Impressions
Overall, ArcGIS proved to be a highly insightful method of analyzing the population. What I would like to do is cross analyze these maps with data that reflects unemployment rate and then another one that cross analyzes race with poverty percentages. I would like to see the comparisons between locations, poverty, employment, and race and possible trends that may appear thanks to the color coding and "join" options in ArcGIS.
All Others
The pattern in "all other races" bears much more of a resemblance to the Asian map than the black map. Strong concentrations show up in areas of large population and often quality weather. These are most ideal conditions for living and for working opportunities, so this is not surprising. There is a large concentration in Southern California that carries up into the Silicon Vally, as well as throughout southern and western Texas and in the Seattle area in Washington. All of the regions are areas of high productivity and job opportunity.
Black
Rank in black population are heavily concentrated in the south east and mid-west. This is likely a historical reflection of the area bearing similarities to population trends as far back as colonial times and through the period where these states were mostly slave states. The heavy population does not reach down into Florida, which belonged to Spain for much of the aforementioned period and then went on to become a vacation hot-spot for predominantly wealthy, Caucasian people.
Asian
The visual breakdown of shifts in the Asian population across the United States is not particularly surprising. The areas of most movement are by far Hawaii and along the west coast, or the areas closest to Asia. Splotches of other concentrated movement appear to be around the areas of major cities on the east coast as well as Texas. Alaska's tip and Hawaii are probably red due to their proximity to Asian nations and this trend of convenient location carries over to the west coast. Most other areas of darker color are highly populated in general and probably have greater job opportunities than the lighter areas, making them more appealing.
Thursday, May 24, 2012
Lab 6
The area I selected is a small part of south-central California, or "the valley."
Extent Information:
Top- 37.6786111104Left- -118.984444445Right- -117.911666668Bottom- 36.7841666659
The geographic coordinate system is North American, 1983. It uses angular units (degree, 0.017453292519943295) and the D_North_American_1983 datum.
Extent Information:
Top- 37.6786111104Left- -118.984444445Right- -117.911666668Bottom- 36.7841666659
The geographic coordinate system is North American, 1983. It uses angular units (degree, 0.017453292519943295) and the D_North_American_1983 datum.
Thursday, May 17, 2012
Thursday, May 10, 2012
Lab 4 Review
My experience using ArcGIS would
have been virtually impossible without the tutorial. As it was, the explicit
directions were easy enough to follow, but I would’ve been completely lost had
I strayed at all. The exercise highlighted my flaws in both taking directions
and dealing with computers in general. I have a tendency to anticipate the next
step and just carry on with an assignment, but this system was so foreign that
any un-instructed maneuvers on my behalf (that I habitually make) simply set me
back a ways. The exercises also spotlighted the fact that I am what I would
call “Mac-crippled”… basically that I want instructions/tools/results/etc. to
be more picturesque, so I was somewhat dissatisfied with my work.
Besides my own shortcomings, the lab
was highly productive for my knowledge of the usage of GIS. I was especially
impressed by my options for data storage. It was incredibly effective to have
the options to generate graphs and tables from data that I inputted into visual
elements of the map, like the parcels. The options to combine data values were
particularly useful as these maps are so often utilized for the comparison of
data across a given area. The “join” and “relate” commands allow the user to
complete these tasks in a straightforward and productive fashion.
I, personally, found the analytical
interactive and shading options to be especially beneficial. The abilities to
click various elements of the map “on” and “off” made it much easier to gain a
visual comprehension of the data that I was presented. Color-coding selections
were also highly effective in spotlighting whatever element of the map I wanted
to deal with. In the case of “Population Density,” it was quite practical and
simple to have the coloration organized in a spectrum. Visual analysis is
instantly available. With the “Land Use and Noise Contour” elements, the colors
were simply random, but still allowed for quick distinction of land-types and
identification of areas within the reaches of the noise contour.
The only real pitfalls of GIS I can
think of are the initial intimidation factor and limited access. If you are not
at least decently familiar with the format of the visual or tool setups of GIS,
any map you are given can be quite daunting. The average user may be quite
inhibited without instructional tools like the tutorial I was given.
Additionally, the lack of accessibility of the program makes it much less useful.
I can (and did) post an image of my map online, but that diminishes the value
of ArcGIS in the first place if we lose all of the interactive features for analysis.
These limitations in program accessibility in turn lead to limits in the data
sources. Sure, we live in a country with considerable liberty when it comes to
information—compared to China, perhaps— but realistically the companies that
own data sources are quite free to restrict anyone from accessing their data.
They don’t restrict too much, as long as you have the purchasing power to get
what you’re looking for.
Thursday, May 3, 2012
Monday, April 30, 2012
Amnesty International: Eyes on Syria
This is NOT a part of anything for my grade... I just thought it was a super epic example of neogeography: Eyes on Syria
Thursday, April 26, 2012
The map I
created is a prime example of how the concept of “neogeography” may be used as
an excellent educational tool, but also abused as a tool of the creator’s
intentions, whatever they may be. In my map, I chose to mark locations affected
by what has been called the “Arab Spring” of last year. While the elements of
the map regarding the locations themselves were entirely factual according to
my research, the presentation of them was completely subjective. Each piece of
media utilized is highly sympathetic towards the revolutionaries of a given
region; some even go so far as to villainize the suppressive regimes. If you’ll
note my previous sentence, even my chosen rhetoric reflects my personal
opinions as I label whatever powers may have been in place “suppressive”. In
the environment of neogeography, mapmakers are not acting simply to record
physical elements. We are presented with social, political, cultural, and other
biases in the commentary and artistic elements that they incorporate. This
gives them a phenomenal opportunity to make a more personal connection with the
“audience” of the map, and therefore to produce a more lasting impact.
Unfortunately,
this means that as we deal with controversial topics in terms of neogeography,
whoever stands on the opposite end of an issue is equally capable of exploiting
this technology. With regard to my own map, I am not a person who actually
experienced any of these conflicts first hand. From the beginning, whatever
angle I take on the presentation of my map will already be highly influenced
from outside sources as I’ll be getting all my information second, third, or
fourth hand. Following whatever research I did, my selection of media and style
of writing quite clearly indicates that I sympathize with the rebels. If the
viewers of the map knew my background, they would know that I am a young,
American citizen who has been deeply involved with Amnesty International for
over a year now, and no one would really be surprised by my stance on these
issues. If supporters of the political authorities in place prior to the
uprisings had the same abilities and tools as I with the maps, they would have
produced quite the opposite image. We will always have differences in opinions
on whatever issue is presented in a map, but that is the nature of
subjectivity. The danger lies where bias overtakes fact and we sacrifice
accuracy of documentation for the success of our intentions, something our own
media seems to capitalize on quite well in recent times. Consequentially, our
best chance is to continue to think critically as we analyze information
presented to us. Question who created the map, where they came from, what their
goal is, and anything else that may lead to conflict with the truth.
Thursday, April 19, 2012
Lab 2
1.) The quadrangle is The Beverly Hills Quadrangle.
2.) The adjacent quadrangles are as follows: Canoga Park, Van Nuys, Burbank, Topanga, Hollywood, Venice, and Inglewood.
3.) This quadrangle was first created with topography compiled in 1966.
4.) It was created using the National Geodetic Vertical Datum.
5.) The scale is 1:24 000
6.) At given scale:
a.) 5cm=1200 m
b.) 5in=1.894 mi
c.) 1mi= 2.64 in
d.) 3km= 12.5 cm
7.) The contour interval is 20 feet.
8.) Approximate geographic coordinates in degrees/minutes/seconds and decimal degrees of:
a.) the Public Affairs Building- 34˚/4’22’’N, 118˚/26’24’’W and 34.073˚, -118.440˚
b.) the tip of Santa Monica pier- 34˚/0’7.5’’N, 118˚/29’40’’W and 34.002˚, -118.494
c.) the Upper Franklin Canyon Reservoir- 34˚/7’12’’N, 118˚/24’36’’W and
34.120, -118.410
9.) use Google maps; take midpoint
a.) Greystone Mansion (in Greystone Park)- 570 ft./170.736m
b.) Woodlawn Cemetery- 140ft./42.672m
c.) Crestwood Hills Park- 660ft./201.17m
10.) The map is in UTM Zone 11.
11.) The coordinates are 362000 east, 3763000m north in the bottom left corner.
12.) Each cell of the UTM gridline contains 1000000m2.
13.)
14.) The magnetic declination is 14˚
15.) The intermittent stream flows North to South
16.) Graphic of UCLA Map:
Thursday, April 5, 2012
Maps in Action
This is NOT one of my map submissions, but it might be my favorite site for maps. This site, Maps of War, basically gives videos on the movements of battles and other events in map form. I've listed the link for "March of Democracy", one of my favs, below if you'd care to check it out!
http://www.mapsofwar.com/ind/march-of-democracy.html
http://www.mapsofwar.com/ind/march-of-democracy.html
Poverty and Drinking Water
http://www.grida.no/graphicslib/detail/access-to-safe-drinking-water_de64
These maps were both taken from UNEP's website and I decided to use them together because of the interesting trend between them. The top is a representation of population percentage with access to safe drinking water while the bottom represents the world poverty distribution, using infant mortality rate as an indicator. If you'll note, there is an incredible similarity between the locations of peoples with great limitation in their access to clean water and those with high infant mortality rates. This correlation is not surprising, but it is still interesting, if upsetting, to see the implications of access to basic necessities (or lack thereof) painted out in the form of a map.
These maps were both taken from UNEP's website and I decided to use them together because of the interesting trend between them. The top is a representation of population percentage with access to safe drinking water while the bottom represents the world poverty distribution, using infant mortality rate as an indicator. If you'll note, there is an incredible similarity between the locations of peoples with great limitation in their access to clean water and those with high infant mortality rates. This correlation is not surprising, but it is still interesting, if upsetting, to see the implications of access to basic necessities (or lack thereof) painted out in the form of a map.
Religious Trends Across the US
As implied by the title, this map highlights the "leading" church bodies across the US. It was taken from American Ethnic Geography's "Map Gallery of Religion in the United States", which shows the population percentages of the religions people identify with and you can click here for all options. Some elements of the map were not surprising to me, like the concentration of Mormons in the Utah area or Baptists in the south, but I didn't realize how large the Catholic population was in America. Nearly all of the US is dominated by a leading religious body that identifies with Christianity, which is logical with our history, but it is still intriguing to see the variation across the board.
LRA Crisis Tracker
LRA Crisis Tracker
This map immediately jumped out at me as a fantastic example of an engaging and valuable use of mapping. Although the image above may not be entirely appealing at first, the accompanying link above (LRA Crisis Tracker) takes the viewer to the map's source page, created by the collective efforts of Invisible Children and Resolve in order to document the movement and nature of attacks by the Lord's Resistance Army (LRA), especially in the shown areas of Central African Republic, Democratic Republic of Congo, and South Sudan. I find this map particularly fascinating because it is interactive as well as time-sensitive. You can select from options of "Crisis Type" to view in plotted map form where specific forms of events have occurred or to view it as a "heat map" to view the concentrations of occurrences. It's updated constantly based upon reports from the radio-network set up by the organizations in the area, but also allows you to scroll through the timeline to look at gathered data from any given period. This map simultaneously grants the public access to a statistical history of the conflict and a current update to remain informed.
This map immediately jumped out at me as a fantastic example of an engaging and valuable use of mapping. Although the image above may not be entirely appealing at first, the accompanying link above (LRA Crisis Tracker) takes the viewer to the map's source page, created by the collective efforts of Invisible Children and Resolve in order to document the movement and nature of attacks by the Lord's Resistance Army (LRA), especially in the shown areas of Central African Republic, Democratic Republic of Congo, and South Sudan. I find this map particularly fascinating because it is interactive as well as time-sensitive. You can select from options of "Crisis Type" to view in plotted map form where specific forms of events have occurred or to view it as a "heat map" to view the concentrations of occurrences. It's updated constantly based upon reports from the radio-network set up by the organizations in the area, but also allows you to scroll through the timeline to look at gathered data from any given period. This map simultaneously grants the public access to a statistical history of the conflict and a current update to remain informed.
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