One of our listeners, Jody, emailed us a link to ColorBrewer, an online tool to help people select color schemes for maps. It uses a flash-based map to demonstrate how changing colors affects the look of a map and how that impacts the information being represented. It’s a nice tool to give a user an introduction to choosing colors for maps, so they can immediately see the visual impact of their choices. Cynthia Brewer, the Penn State geographer who designed the ColorBrewer, has also written the book Designing Better Maps: a Guide for GIS users.
A cartogram is a map that distorts geographic boundaries based on different values of a variable. So, if smaller areas have higher values, they will be deliberately distorted to look bigger. Here is an example of the world map distorted based on population. It was done by ODT, Inc. which produces alternate views of map, such as world maps with South on the top or the Pacific Ocean in the center.
Although Landsat is NASA’s most well-known satellite program, other missions are providing a wealth of information about our Earth. Aura, a satellite which was launched July 15, 2004, collects data that are used for studying the composition, chemistry and dynamics of Earth’s atmosphere, including ozone levels, air quality, and climate. At the recent American Geophysical Union conference, maps based on Aura data were presented showing the levels of Nitrogen Oxide (a precursor to ozone formation) in the eastern US.
So, I guess the other web mapping news would be the release of Windows Live Local in beta, which incorporates Virtual Earth. I played around with it a little in both IE and Firefox, and the navigation definitely has issues right now. The main new feature is the Bird’s Eye imagery for selected US cities. The images are actually quite nice. There have been a lot of comments in various blogs and tech news sites, so you’ve probably already seen a few.
Here’s is the latest beta in Google’s stable of mapping apps: Google Transit. It’s the same interface as Google Local, except it plots your trip directions using public transportation, and takes into account the time when you want to leave and arrive. Right now, the only available city on the beta is Portland, Oregon, but they are planning of course on expanding it to other cities.
Although a lot of the attention has been focused on Google Maps, MSN Virtual Earth, and Google Earth, Amazon’s A9.com subsidiary is continuing to map US cities in a different way – from ground level by driving and photographing every block in a GPS-equipped SUV to create a virtual tour of each city. So far, A9.com has 35 cities mapped and I have used the service a couple of times to get a feel for the area I’ll be staying in for a conference.
Check out the A9.com BlockView images, and see what you think
That’s right! ‘Podcast’ has been declared the Word of the Year by the New Oxford American Dictionary and will be included in next year’s update to the dictionary. It’s really a recognition of the phenomenal growth in the popularity and awareness of podcasting.
The deadline for abstract submission for the 2006 ESRI International User Conference has been extended to January 6, 2006. For more information, see the conference webpage.
AAA (American Automobile Association) will be sponsoring the 4th annual AAA Travel High School Challenge, a 3-part geography competition that kicks off with a 40-question online contest from January 9-17, 2006. The top 5 scorers in each of the 50 states and DC will compete in state finals, with those winners receiving a paid trip to Orlando, FL to compete in the finals in May 2006. The challenge is open to all US students in grades 9-12, and is offering more than $100,000 in scholarships and prizes across the whole competition.
For information, check out the AAA website
So if you want to get the scoop on recent UFO sightings, check out ufomaps.comwhich offers summaries of UFO sightings reported to the National UFO Reporting Center (NUFORC). Turns out there was a UFO sighting right here in Morgantown on Nov. 4th, and I missed it! The sightings are mapped in both Google Maps and MSN Virtual Earth, and cover the continental US.