Wednesday, May 25, 2011

Satellite Images Reveal Lost Eqyptian Sites

A new satellite survey of Egypt using infrared sensors with submeter resolution has revealed thousands of tombs and settlements that are buried under silt in the Nile Delta region. A team, led by Egyptologist Dr. Sarah Parcak, Ph.D. is using the imagery to locate future excavation sites. The infrared band of the spectrum enables analysts to distinguish building materials from the surrounding soil. This image forms a streetmap of the ancient city of Tanis - a much larger city than many people expected to see.


Is that the world's first expressway cloverleaf in the northwest corner?

For a regional perspective use this BBC map.



The imagery also reveals where and when sites have been looted so authorities can be on the lookout for antiquities that appear for sale. More details and a video can be found on the BBC and a program, Egypt's Lost Cities will be aired Monday on BBC One. 

Wednesday, May 18, 2011

We're Number 5!

As children, we knew our city was the fourth largest and that it would always be that way. Then in 1990 something awful happened-Houston moved ahead of us. Still, we could take solace in the fact that our metropolitan area was number 4 and Houston only got ahead by swallowing up a bunch of suburbs. Now that the Census 2010 verdict is in we are number 5 on all counts and just barely hanging on. These maps from the Philadelphia Inquirer illustrate our angst.

 Dallas? Are they counting by number of parking spaces?


Using county based metropolitan areas creates some size anomalies and makes the maps look a bit goofy. Riverside? Why do they even get their own metropolitan area? It looks like they're including San Bernardino county also, making for one huge skyscraper that is mostly desert.

The north facing perspective also means losing San Francisco and Baltimore behind their larger "neighbors" but if you flipped it around you'd lose San Diego so something had to give. Of course all of this seems pretty insignificant when compared with the largest cities in the world. A little perspective goes a long way.

Wednesday, May 11, 2011

London Mapping Festival!

The London Mapping Festival is an 18 month program(me) of activities that will eventually coincide with the 2012 Olympics. The official launch event is June 6th, however activities have already begun with an exhibit of hand drawn maps at the Museum of London. Readers of the Londonist have submitted their own entries shown online here. Some examples:
"Selected Loos of London."
"Brixton as a Tree"

 

Artist Alexander6's "super-swanky map of Mayfair and all of the area’s ridiculously over-priced luxury stuff..."

Many more can be found in their online archive.

Wednesday, May 4, 2011

Map of the Week-Mexico City's Subway Station Icons

When Mexico City designed it's subway system in the 1960's there was widespread illiteracy (not so anymore.) They came up with a solution of visual signs such as colors and icons. Each station has a unique logo or icon based on local points of reference, history, nature, etc.


For example the Pino Suarez station icon depicts an Aztec pyramid that was discovered during the construction of the station.

Salto del Agua shows a local fountain and Merced shows a box of apples because it's located adjacent to one of the largest outdoor markets in the city. The stories behind most of these icons can be found by clicking the station name from this wikipedia page.


The image above is a detail from this image from Wikipedia.


I discovered these icons when I was working on my Maps on Album Covers project. One of my favorite "Rock en Espanol" bands Cafe Tacvba (not a typo) put a fake subway diagram with fake icons on their Cuatro Caminos album. The album is named for a real subway station, but the others on this map appear to be whimsical creations.



Here is the real area around Cuatro Caminos - the geodesic dome is a former bullfighting arena.


Wednesday, April 27, 2011

Map of the Week-US Population Change

It's that time again when redistricting claims much of my time at work. I don't work directly with the overall US population figures, but I've been exposed to lots of ugly, poorly designed maps showing population change across the country. This map from Brookings Institute Demographer William H. Frey is one of the better ones though it's not clear if he's using the final 2010 Census figures or one of the estimates.


The resulting patterns are fairly predictable and consistent with previous decades. The ring around Minneapolis nicely exemplifies the exurban migration that may finally be starting to ebb a bit. The continuing growth of areas with the poorest access to fresh water is not really news but shows up clearly.

What is interesting is how many counties are losing population. The population loss in the Great Plains is old news but the huge number of counties in the less than 10% loss category is surprising. Unfortunately the pattern is lost a bit by the dull color choice for that category.

Wednesday, April 20, 2011

Maps in Unexpected Places-Savannah Part 2

As promised here is part 2 of the Savannah edition of Maps in Unexpected Places.
Vic's on the River is a restaurant in an old warehouse, that was used by General Sherman's officers as a planning space. The main dining room showcases a map drawn by Union soldiers in the Civil War detailing Sherman's march from Tennessee through Georgia. The map was discovered during a renovation drawn onto the wall. For protection, it is framed under glass. The romantic dining lighting is poor for photography but here are some pictures I attempted. I can't find any good images of this map online so these photos are the best I have. First, the explanatory text.



The northern part of the map shows Chattanooga, Lookout Mountain, and the Georgia, Tennessee border region.



Lookout Mountain.


Some details a little further east. 


Oh and by the way, the food is excellent, too. Come for the map, stay for dinner.

Wednesday, April 13, 2011

Maps on Album Covers-Reader Suggestions

My recent "Maps on Album Covers" post was as incomplete as my music collection. Fortunately you folks stepped up and gave me some great suggestions. Here they are:

Hell's Ditch - The Pogues


Wisconsin by the Crucifucks



The Ambient series by Brian Eno is all kinds of mappy.


Coming Home by Maggie Bjorklund


No Borders Here - Jane Siberry, although the version I accidentally downloaded from her site has a different cover.



More globe than map but here's Soul Rotation by the vastly underappreciated Dead Milkmen.








This is not the front cover but apparently XTC's Colin Moulding has some nice cartographic skills. This is from Go 2.


The back cover of More Songs about Buildings and Food by Talking Heads. I'm not sure what this map is showing.