EarthCache no more

One of the earliest network link hacks to hit the web was Andy Fowler’s EarthCache KML link, a php script that displayed the nearest geocaches for a view, from the geocaching.com database.

This month, Geocaching.com’s owners, Groundspeak, asked Andy to put an end to the link, possibly because they will be offering a similar service to paying customers soon. He isn’t happy about it, but he stops serving the script, though his source code is now up for anyone to take and run on their own servers.

Websites mostly own their content, and thus can restrict access via the terms of use, but when the content is user-contributed, then I think you can make an ethical case for not restricting access to it. Instead, use RSS and KML feeds to drive traffic to the site, where you can upsell community services and cool new products (like the travelbug).

EarthSLOT

Heard of EarthSLOT? I hadn’t. It’s run by Dr. Matt Nolan at the University of Alaska Fairbanks with support from the National Science Foundation and it’s billed as a “3D GIS and visualization application designed to allow scientists, educators, and the public better understand our planet and the earth-science that goes on here.” It looks a lot like Google Earth. It’s even in Beta, just like Google Earth.

EarthSLOT is actually built on Skyline Software‘s TerraExplorer and their TerraGate server. This means it won’t run on my Mac, not even in Virtual PC, but there are some seriously goodlooking screenshots to look at. The most noticable difference from Google Earth I can see from these images is that 3D buildings can have quite complex shapes as well as pictures along the sides. There is also an interesting use of the application to display traditionally non-spatial data in a spatial way.

There is a lot of Arctic and Antarctic data, which makes EarthSLOT a promising way to explore those regions in detail. Overall, I suspect the main weakness of this public and free demonstration is scalability. Maybe it’s best that we keep this one amongst ourselves.

Snow Crash redux

We’ve already had some excerpts from Neal Stephenson’s 1992 novel Snow Crash on Ogle Earth, and we’ve found that John Hanke took inspiration for Google Earth from the Earth in Snow Crash.

I read Snow Crash over the past week, and bookmarked the Earth passages. Here they are, at least all the ones longer than a passing mention:

There is something new: A globe about the size of a grapefruit, a perfectly detailed rendition of Planet Earth, hanging in space at arm’s length in front of his eyes. Hiro has heard about this but never seen it. It is a piece of CIC software called, simply, Earth. It is the user interface that CIC uses to keep track of every bit of spatial information that it owns – all the maps, weather data, architectural plans, and satellite surveillance stuff.

Hiro has been thinking that in a few years, if he does really well in the intel biz, maybe he will make enough money to subscribe to Earth and get this thing in his office. Now it is suddenly here, free of charge. (Ch. 13)

Hiro turns his attention to Earth.

The level of detail is fantastic. The resolution, the clarity, just the look of it tells Hiro, or anyone else who knows computers, that this piece of software is some heavy shit.

It’s not just continents and oceans. It looks exactly like the earth would look from a point in geosynchronous orbit directly above L.A., complete with weather systems—vast spinning galaxies of clouds, hovering just above the surface of the globe, casting gray shadows on the oceans—and polar ice caps, fading and fragmenting into the sea. Half the globe is illuminated by sunlight, and half is dark. The terminator—the line between night and day—has just swept across L.A. and is now creeping across the Pacific, off to the west.

Everything is going in slow motion. Hiro can see the clouds change shape if he watches them long enough. Looks like a clear night on the East Coast.

Something catches his attention, moving rapidly over the surface of the globe. He thinks it must be a gnat. But there are no gnats in the Metaverse. He tries to focus on it. The computer, bouncing low-powered lasers off his cornea, senses this change in emphasis, and then Hiro gasps as he seems to plunge downward toward the globe, like a space-walking astronaut who has just fallen out of his orbital groove. When he finally gets it under control, he’s just a few hundred miles above the earth, looking down on a solid bank of clouds, and he can see the gnat gliding along below him. It’s a low-flying CIC satellite, swinging north to south in a polar orbit. (Ch. 13)

Earth materializes, rotating majestically in front of his face. Hiro reaches out and grabs it. He twists it around so he’s looking at Oregon. Tells it to get rid of the clouds, and it does, giving him a crystalline view of the mountains and the seashore. Right out there, a couple of hundred miles off the Oregon coast, is a sort of granulated furuncle growing on the face of the water. […]

Hiro looks up, focuses his gaze on Earth, zooms in for a look. As he gets closer, the imagery he’s looking at shifts from the long-range pictures coming in from the geosynchronous satellites to the good stuff being spewed into the CIC computers from a whole fleet of low-flying spy birds. The view he’s looking at is a mosaic of images shot no more than a few hours ago. (Ch. 35)

Hiro reaches out and grabs Earth.

“YOU ARE HERE,” he says.

Earth spins round until he staring straight down at the Raft, then it plunges towards him at a terrifying rate. It takes all of three seconds for him to get there.

If he were in some normal, stable part of the world, like lower Manhattan, this would actually work in 3-D. Instead, he’s got to put up with two-dimensional satellite imagery. He’s looking at a red dot superimposed on a black-and-white photograph of the Raft. The red dot is in the middle of a narrow black channel of water. YOU ARE HERE:

It’s still an incredible maze. But it’s a lot easier to solve a maze when you’re looking down on it. (Ch. 58)

The great catch-up

New uses & tools

Sportsim integrates ESRI ArcWeb with Google Earth. James Fee likes it.

Flyr. Search flickr for geotagged photos and display them in Google Earth (or Maps).

A trucker finds Google Earth very useful for his work.

Google Earth Art

Anyone found the giant pink bunny yet in Google Earth?

Art Tracking Module 002

Hurricane Rita

A digest of overlays at Google Earth Community.

A very informative overlay by Ivo Janssen.

Interesting articles

Geobloggers: Location Based geoSpam and geoAdvertising

Xeni Jardin in Wired: CNN Hacks New TV Technology¨Ü

It’s not just CNN: Dutch NOS TV news also uses Google Earth [Dutch].

Kathryn Cramer: Deploying Google Earth Toward a New Relationship with History: The Case of Hiroshima

Remember how Luca Mori discovered a Roman villa using Google Maps? NASA wants a piece of the PR action too. On September 29, The location of Homer’s home island Ithaca will be announced, having apparently been found with NASA’s World Wind, says this breathless press release.

Conferences

Geospatial Information & Technology Association (GITA) is planning to hold its first online convention (and trade show) from October 1 to December 31. One of the speakers will be Jack Dangermond, head of ESRI. (I’m not sure how that works.)

Call for papers for the Virtual Globes Session at the Association of American Geographers (AAG) Annual Meeting, March 7-11, 2006, Chicago, Illinois.

GeoWeb 2006, Vancouver, Canada July 24 ÇƒÏ July 28, 2006.

Social history

Google Maps Mania links to two Google Maps projects, Your History Here and PlaceOpedia, both by UK-based mysociety.org.

One seems to be a lot more useful than the next. PlaceOpedia exists as a way for users to manually link places on a Google Map with Wikipedia articles about those places. Not to be negative, but isn’t this a task ripe for automation? That’s how the Germans did it two months ago.

Your History Here makes a lot more sense, because here the user gets to generate her own personal historical recollections about a place, which turns the site into a unique living historical trove. That’s a great idea.

The point of this post, however, was to point out that both sites export their content as KML feeds. Your History Here’s KML; PlaceOpedia’s KML (“although this currently doesn’t work.”)

(And finally — posting will be a sporadic over the entire next week, as I am off to Paris and then London, where I am about to become an uncle. As they say in Sweden, jag kommer att f√ï vuxenpo√ßng.)

Notes on the political, social and scientific impact of networked digital maps and geospatial imagery, with a special focus on Google Earth.