Wednesday, September 14, 2011

LA County Private High Schools and Public Libraries



One of the towns I used to live in is apparently raising two million dollars for renovations to its library. I told my mother (an active supporter and board member of her public library) that I thought this was a waste of money as the role that libraries play in society today has been/will be diminished. I suggested the town is better served spending its money on a public space like a park or garden. Or maybe put it back into the educational system. My mother was disgusted.
She informed me that public libraries are being used as much, or more than ever before. She said that while people don’t check books out as often, instead poorer families still rely on the library as their primary information source: internet access, consumer reports, magazine and even travel guides are hugely popular. The library also is increasingly community oriented offering meeting spaces and discussion groups.
I was pretty surprised to hear all this because I assumed that libraries were a dying breed as people increasingly access information online from home, or opt to sit and read at a Barnes & Noble instead. Now, with the release of the iPad and all of the other variations has allowed individuals to download/purchase books via tablet. The Amazon Kindle allows students to even purchase their textbooks; saving students the trouble of carrying around a 30 pound textbook. While the creation of such technology and made it much more convenient for individuals to access information, the essence of the book is slowly diminishing.  
For my project I wanted to target all Los Angeles Senior Private high schools and where they are located relative to public libraries. I chose private high schools because these children tend to come from economically stable families who have more accessibility to information. Children in high school are at the age where technology has become a large part of their lives, socially, academically, and recreationally. According to http://www.thenewbusinessblog.com  the average American high school student spends 8 hours a day on the internet. Students use the internet for research projects, reading online articles, and recreationally. Today, with the Green Revolution in place, teachers and professors are going paper-less in the classroom. This has required all students to acquire internet access in order to view the class information, assignments, and homework.
In preparation for my project, I acquired the addresses of all of the private high schools in Los Angeles County. Then, I acquired all of the addresses of the Los Angeles County public libraries. The results were astounding. The results convey that 85% of the private schools in Los Angeles County are north of Downtown Los Angeles. As you move west from downtown, the property value of homes and yearly income of individuals goes up. It is no lie that east Los Angeles demographically is comprised of low income Hispanic families. But why the discrimination? I asked myself, “where would they put a public library in Beverly Hills?” I was thinking about this question for hours. After analyzing the map, I concluded that as a result of having a higher income, the availability of internet and information is more accessible. When you look at the map, you notice that there are approximately four private high schools in downtown or just south of it.
Most private schools are located in areas with higher income. Private high schools also provide students with many benefits that you will not find in the public school system. At my public high school, we did not have a computer lab because our school could not afford it. But I guarantee the private school down the street had the proper resources to acquire a computer lab. This exposes students to the values of the world wide web and all of the conveniences that surround it.
In addition to layering this information, I created a one mile buffer around each library in order to see whether any private schools intersected with public libraries. The map illustrates that 9 private high schools are within the one mile buffer of public libraries. However, is it safe to assume that these private school children use the public library? No. The map is very segregated and portrays that society lacks an equal opportunity to education and resources. It is clear that a child enrolled in public school must go out of his/her way to acquire information. Whereas a private school student just needs to walk down the hall to find answers.
This problem with society is something that will eventually change over time. I believe that the demand for information and technology is increasing that the library, magazine, and newspaper will eventually die off. This project brought to light the inequalities of education and how they are demographically and economically oriented. Hopefully, communities with lower economic status will have the means in the future to obtain such resources. 

Monday, September 12, 2011

Lab 5

Downtown Los Angeles averages 15.14 inches (384.6 mm) of precipitation annually, which mainly occurs during the winter and spring (November through April) with generally moderate rain showers, but usually as heavy rainfall and thunderstorms during Winter storms. The coast gets slightly less rainfall, while the mountains get slightly more. However the San Fernando Valley Region of Los Angeles can get between 16 and 20 inches of rain per year. Years of average rainfall are rare; the usual pattern is bimodal, with a short string of dry years followed by one or two wet years that make up the average. I think that the IDW rain normal was the best illustration of LA precipitation because it enabled the difference of color to differentiate area of higher precipitation 

Wednesday, August 31, 2011

Quiz 2


    China, India, USA, Indonesia, Russia, Brazil, Pakistan, Japan, Bangladesh, Nigeria
-          I opened the cntry02 Attribute Table and organized the POP_CNTRY  column in Descending order. This gave me the list of the most populous countries in the world

2.       The Amazon River system has 15 rivers. I clicked on Select by Attribute, under the layer drop down menu I clicked rivers. Double click on “SYSTEM” = Get Unique Values then’Amazon' then Apply. Now if you open the rivers attribute table you will see all of the Amazon Rivers.

3.       There are 60 cities within 500km of the Amu Darya and Syr Darya Rivers. I got this by selecting a spatial query and I applied a search distance of 500km. Then I opened the attribute table which highlighted the 60 cities within 500km of the two rivers

4.       516490670-64193450=452297229. I got this answer by using the statistic tab as a result of the spatial query minus the population of Iran

5.       The least populated is the Vatican City and the most populated is Ethiopia. Select by attributes landlock=y. This function returned all of the landlocked countries ranked by population.

6.       Austria, Czech Republic, Slovakia, Romania, Yugoslavia, Croatia, Bosnia & Herzegovina, Slovenia. I got this answer by creating a buffer around the city of Veszprem and identifying which countries lie within 300Km of it

7.       Libya, Sudan, Central African Republic, Cameroon, Nigeria, and Niger. I got this answer by selecting the country Chad and using the Identify tool to identify all of its bordering countries.

8.       Russia, 97; US 93; Thailand, 72; Turkey, 67; Poland, 50. I got this answer by doing a spatial join between cntry02, which was my target feature and cities which was the source. After this join, I opened the attribute table which stated the most cities based on the data.

9.       There are three rivers that run through the country of Sudan. The White Nile, 1893km, the Nile, 3023km, and the Blue Nile 5046km. I was able to use the select by attribute then rivers systems then Nile. I used the sinusoidal projection in order to have the software calculate the lengths of the rivers. I then added a new field to the attribute table and the newly projected rivers titled ‘length’. I was then able to use the Geometry tool to calculate the distance in km

10.   Russia, 1537; Canada 1355, USA 759, China 226, Sweden 173. I joined lakes and cntry02. I then opened the attribute table and sorted them by join count which then gave me the countries with the most lakes in order. 

11.   The lakes were first projected on a sinusoidal projection in order to calculate the area. The new field was created. I then did a spatial join between lakes and countries. When I opened the attribute table I was able to sort the lake area in square km for each of the five countries. Canada 443,509 km/sq; USA 196,856; Russia 138250 km/sq;  Kahzakstan 70,869; China 51,272

12.   If I had more time I would view only the cntry02 and lakes layers. I want to first get the lake area of each country.

Tuesday, August 23, 2011

Final Project


There is a saying that goes “the children are the hope the future” and with this comes the protection of the youth. My project is going to analyze how many police departments are within 1000 feet of every school in Los Angeles County. I’ve already gathered the addresses of every Los Angeles County Police department on an Excel spreadsheet. This will allow me to geocode the locations onto my map. Next, I will project the institutions in Los Angeles on the map which will also project the major highways/roads that will be the easiest routes. With this information, I will create a 1000ft buffer around each school and see if any Police departments lie within the buffer. 

Monday, August 15, 2011

Midterm- Medical Marijuana in Downtown LA


After analyzing the map that I created, I approve of the recent Los Angeles City Council decision requiring all medical marijuana dispensaries in the City of Los Angeles to be at least 1,000 feet from places where children congregate, such as schools, parks and libraries. This has been a major issue since the beginning of the Obama administration which announced in 2009 that they “would no longer prosecute dispensaries adhering to California’s medical marijuana laws.” In California, having possession of marijuana is decriminalized. This allows a medical marijuana user to legally have up to 6 oz. in their possession. When this law was passed, over 500 medical marijuana dispensaries were opened. However, many neighborhood councils were opposed to the new law because they believed that it would advocate the use of drugs and consider marijuana to be a gateway drug. Recently, cities like Glendale have completely banned medical marijuana dispensaries and Anaheim maybe soon to follow. Furthermore, cities officials want to keep dispensaries from opening around places where children congregate like the aforementioned locations.  In order to do this, people in the GIS field are able to create maps that indicate buffer zones where it would be reasonable to open a dispensary that would not lie in the boundary of a school, park, or library. 

Marijuana is the largest cash crop in the United States; even more than corn and wheat. However, it remains untaxed by the government. This is the only issue I have which the legalization of marijuana. The legalization of medical marijuana would allow for a government tax which would in turn, generate billions of dollars in the economy. Instead, we have billions of free-flowing cash that is going untaxed. The cost benefits of opening a dispensary are immense. Furthermore, the map that I created illustrates library, park, and school buffer zones in the Downtown Los Angeles area. In addition, the medical marijuana dispensaries are also highlighted. And the results convey that there are no medical marijuana dispensaries within 1000ft of any library in the Downtown area. There are two dispensaries that lie within a 1000ft boundary of a park (818 N Spring St/312 W. Olympic Blvd). Finally there are 13 dispensaries that intersect with schools*. The problem is that too many young children are being exposed to marijuana at such a young age which is why the Los Angeles City Council seeks to eliminate dispensaries within these boundaries. Their main priority is to protect the children and this policy is a great way to start. 

*Refer to spreadsheet for locations: 0, 1, 3, 8, 12, 14, 22, 23, 25, 27, 28, 29, 32

LA Times Article about the new Policy:                                        

Glendale Bans Medical Marijuana Dispensaries:

UCLA GIS (location of Parks and Institution Shapefiles: http://gis.ats.ucla.edu/

Los Angeles County Libraries Shapefile: http://egis3.lacounty.gov




Carl's Jr in Los Angeles County


The map that I created illustrates 50 randomly chosen Carl's Jr restaurants in Los Angeles County. My first assumption was that the mean center of Carl's Jr would lie somewhere in the southeast region of the county. And as the map illustrates,  the mean center is located almost at the heart of Downtown Los Angeles where the 10 and the 101 highways meet. I created a one mile buffer around the Carl's Jr restaurants to convey any overlaps or regions that have a higher concentration of Carl's Jr.

Geocoding is an important aspect of GIS. It enables an individual to conduct geospatial analyses and to determine whether there are geographic patterns in the specified region. Using ZIP code enables you to analyze the frequency of Carl's Jr in a specific location. All in all, geocoding is a useful tool when analyzing geospatial information 

Below are the addresses of the randomly selected Carl's Jr Restaurants: