Articles


Mapping Florida's Foreclosure Troubles

The recent foreclosure crisis has resulted in significant economic and social strain throughout the United States. One place hit very hard during the recession is Florida. Florida experienced high levels of foreclosures due to rapid home construction and predatory lending that occurred during the 2002-2005 run up to the recession. In this post I highlight a free source of foreclosure data produced by the Department of Housing and Urban Development through conjunction with the Mortgage Bankers Association and the Federal Reserve. The dataset provided by HUD allows you to download data down to the census tract level on home foreclosures …

Mapping 2011 Washington D.C. Crime Data

Washington D.C. has an excellent catalog of GIS data that is made available to the public at DC GIS. The website provides data on all sorts of issues ranging from criminal activity to building permits. Also the website contains spatial files that can be used to create detailed and professional maps. For this post I collected data on 2011 crimes within the city. I will show how to import the data into Cartographica, how to geocode the crime incident data, how to search for specific types of crimes, and how to create Kernel Density Maps. The first step in …

Mapping Oil Production Worldwide

In a recent article in the L.A. Times it was reported that the U.S. has decreased oil imports and has increased oil production. This article inspired me to search for data on oil production and consumption by country. Before we can create a map with this type of data we need a file that we can use to join data to. If you have seen previous posts you will see that we have used a basemap from Geocommons . I will be using this baseman again for this post. Download the file and then save it as World.shp …

Mapping Henryville, Indiana Tornadoes

Given the recent and tragic outbreak of tornadoes across the Midwest I thought it would be appropriate to do a blog on tornadoes. Before I continue I should mention how sorry we are at Cartographica that so many lives were lost and that so many homes were destroyed. Towns likes Henryville, Indiana and West Liberty, Kentucky were among the worst hit by the recent tornado outbreak. I found an interesting website on the National Oceanic and Atmospheric Administration's website. The website provides a lot of historical information about tornados in the United States. A particularly interesting fact from the website …

Mapping 2012 Primary Results

The U.S. Republican Presidential Primaries are still ongoing, but a number of states have already completed their elections. To find election results do a google search for 2012 primary results or click here. The first search results should be a table of data with the percent voting for each of the major candidates in each state. I wanted to create a few maps to show the results. I quickly created a .csv file by copy and pasting the table into my spreadsheet application. I saved the file as Election_2012.csv. I provide an image below of what the dataset …

Mapping CO2 Emissions World Wide

I recently read an article on the Guardian about the changing distribution of carbon dioxide production by country. Carbon dioxide is among the most closely watched greenhouse gases that potentially leads to global warming. According to the Guardian article China has increased its production of CO2 by about 170% since 1984, which is more than the U.S. and Canada combined. Other important changes mentioned in the article are that England has dropped in its production and that India has moved above Russia to the third rank. The U.S. is second in CO2 production behind China. I …

Mapping Iranian Nuclear Facilities

In recent weeks there has been talk about the increasing risk of Iran's nuclear program promoting potential for Israeli preemptive attacks. I wanted to use this post for dual purposes. First, I had a general curiosity about the location of Iranian nuclear facilities so I thought I would try to find a reliable source of information to create a few maps highlighting the locations of these facilities. The best source that I found in my short period of research was from a document created by the Congressional Research Service at the Library of Congress. In the report written by Hussein …

Mapping the East Prairie, Missouri Earthquake

There was a large earthquake today near East Prairie, Missouri that was measured as a magnitude 4.0. According to the USGS the quake was felt by people in at least nine surrounding states.The earthquake was located near the New Madrid Fault line. The Center for Earthquake Research and Information (CERI) located in Memphis, Tennessee works continuously to provide information about the seismic activity in the area surrounding the New Madrid Fault line. Their website provides a lot of information about the science behind detecting and analyzing earthquake activity. Additionally, their website provides free maps and data to explore …

Mapping Country Level Internet Usage

A colleague pointed me to an interesting website for the International Telecommunications Union. The ITU is an organization that collects and disseminates telecommunications data. Their website provides information on various topics and also includes access to graphics and free data. On the right side of their main page there is a list of datasets about communication systems by country for years 2000-2010. This is a very nice set of data because the data are time-series, and because the data appear to have few missing values. For this post I downloaded the dataset "Percentage of Individuals using the Internet". After the …

Mapping Population Data from Statistics Canada

For this post I found data on Statistics Canada, which is a governmental website that provides access to data on various topics within Canada. The website includes spatial data for creating maps and variable data for creating tables. To start you need to get a spatial file. I decided to get data for Provincial regions within Canada. To download the Provincial Regions shapefile to the Provincial Region Page and click on the link "ger_000b11a…." After you download the shapefile import it into Cartographica by choosing File > Import Vector Data. To download basic population data on Canadian provinces and territories go …

Mapping Changing Life Expectancies using World Bank Data

The World Bank is an international organization headquartered in Washington D.C. that organizes and funds efforts to reduce poverty and promote development around the world. It is a large organization that is made up of more than 9,000 employees with over 100 offices throughout the world. The World Bank not only provides funding, but they also provide access to large amounts of data with the purpose of promoting policy analysis and development. The data available from the World Bank is vast, and covers more than 200 countries with thousands of variables and indicators to choose from. Here is …

Mapping Recent Earthquake Activity

Recently there have been several earthquakes around the world. In Negros-Cebu region, Philippines there was a 6.7 magnitude earthquake that resulted many injuries and deaths. The earthquake activity peaked my interest to explore what was happening around the world in terms of seismic activity. To find data on recent earthquake activity I went to the U.S. governments data portal Data.gov, which is a clearinghouse for thousands of maps and datasets. I found data on earthquakes for the past 7 days. The link to this data is here. When you go to the webpage you will see that …

Mapping South American Oil

Oil prices are a continuing concern of people all over the world. There are a lot of variables that enter into the price of oil, including where the supplies are relative to the demand and how much is controlled by a single party. Oil fields vary in size and in the amount of oil that they contain.I was curious about spatial distribution of oil fields and how much oil the fields contained. To visualize the issue I found data from the USGS. The shapefiles that you can download show the locations of many of the worlds known oil fields …

Mapping U.S. Gun Crimes

I recently came across an article on The Guardian that looks at gun crime in the United States. The article includes several maps and it also includes downloadable gun crime data for U.S. states. In this post I show how to import the downloaded data into Cartographica to replicate the maps produced in the article. To download the data click on "Get the Data" within the article and then download the data in .csv format. The data set contains the total number of murders, total firearm murders in 2010 and 2009, total handgun murders, and the rates of firearm …

Mapping South Korean Artillery Ranges

I am always very interested in what's going on in Korea. The border disputes that have occurred there over the past several years have made tensions in the area very high. Despite my interest in what's going on I don't know a lot about the specifics of the situation. In this post I use Cartographica to explore the area a little more. One of the biggest issues I am interested in is the artillery fire associated with an island called Baengnyeong Island. A Huffington Post article describes the most recent situation developing there. The article says that the South Korean …

Steps for Collecting County Level Data from the new U.S. Census American Fact Finder Website

This post describes the process for collecting data using the new U.S. Census American Fact Finder website (Fact Finder2). The new website allows you to select data from almost all U.S. Census Bureau surveys. These include the Decennial U.S. Census and American Community Survey among many others. The new data collection process requires you to use a series of steps for collecting what you want. These steps are logical as you move from general to specific selections. To start, you first determine the dataset and year that you would like to use. Then you choose the geographic …

Digital Globe Releases Image of Costa Concordia Wreck Site

This post shows an image downloaded from Digital Globe that depicts the wreckage site of the Costa Concordia cruise ship. The ship wreck occurred off of the coast of Italy and is still currently being handled by officials there. There has been much media attention given to ship's captain who mysteriously abandoned ship before many of the passengers. He was taken into custody by Italian officials. For this post, I georeferenced the Digital Globe image using Cartographica so that we can create more informative maps and new data layers. The first step in using an image like the one downloaded …

CNN Releases Map for Battleground States for 2012 Election

CNN has released an interesting map that will be continually updated throughout the election year. The map shows CNN predictions for how they believe states will perform during the 2012 presidential election. The heading says that the map will be updated as new information becomes available. Probably the most interesting aspect of the map are the locations of the battleground states. Battleground states are those places that will have tough competition between the candidates. Also, another interesting feature of the map is that the total number of electoral votes is also included. This allows you to see which battleground states …

Microsoft GPS App that Guides Users Away from "Bad Neighborhoods" Taking Criticism

Microsoft has recently gained a patent for a GPS app that uses sources of data to alert users that they are approaching an unsafe area. The app links to GPS and smartphone devices to sources of crime data that alerts users if they are approaching an unsafe area.There currently is limited information about exactly what types of data the app will use and if it will account for other factors that may influence crime in specific areas. The complete functionality of the app has not yet been made available, but already the implications of the app are taking criticism …

Maps for the New Hampshire Primary

The highly anticipated Republican Presidential Primary is being held today in New Hampshire. The New Hampshire Primary is a particularly important election because it is the first non-caucus election held for the run up to the Republican presidential nomination and the subsequent Presidential election. The election receives a lot of media attention and is used as a tool for analyzing and estimating the performance of elections held in other states. To honor the New Hampshire primary I have put together a data set with data collected from several sources. The dataset includes data from the American Fact Finder website, which …