Category Archives: Content

Google Earth CTO Michael Jones’s GIS day talk, now on video.

Google Earth CTO Michael Jones gave a lunchtime presentation at the University of California San Diego on GIS day on November 16, and now the 82-minute video has been posted to the web (151MB, mp4). There are some big ideas contained in this talk, as well as some intriguing hints of things to come in Google Earth.

The first 19 minutes are a tour of Google Earth, so skip those if you’ve used the application before. But then the talk gets interesting. One thing that Jones articulates very well here is the purpose of Google Earth; it’s worth stating verbatim: The mission of Google Earth is “not to show geographical information but to show the world information geographically.”

Listening to Jones, you do indeed get the sense that what he’s talking about is a lot broader than traditional GIS. He sees Google Earth as a tool, but turns that observation into a near-philosophical insight based on the ideas of the Dutchman and Economics Nobel prize winner Tjalling Koopmans. (Geeking with Greg has more quotes from this part. It’s worth watching the video to catch the nuances of these insights.)

(And you get to know some interesting things about Jones. He’s helped build the world’s highest resolution landscape camera. He likes to collect first editions of technical manuals. And he’ll make throwaway lines about quaternion inversion matrices, so one suspects he is a bit of a genius.)

During question time, he says some things that I believe are news:

“In a few weeks, you’ll see that the Google webcrawler will have found all the KML files in the world and set them on Google Earth.” (at 50:30 mins.) That hasn’t happened yet, so we can expect this any minute now:-) He also mentions Google Base as a way self-published data will be able to finds its way to Google Earth.

He also shows off a tool that he calls a time browser, and uses it to “scroll” through a dataset of place markers according to their time stamps, so that they are displayed in chronological order. I don’t believe that’s in the current publicly available beta.

More speculatively, he also said that it would be nice if oceans could be rendered in 3D as well, thus opening up Google Earth to sub-ocean mapping (at 54:00). Finally, he mentioned that Google Earth’s database gets rebuilt every month, and that this is when new data tends to get added. They have far more data than they show, apparently, but much more will come online in the next six months, Jones said.

(Via Paul Kedrosky’s infectuous greed)

Google Earth tidbits (but good ones)

1.Lawrence, Kansas is the center of the Earth. Or at least Google Earth. The town’s own paper has an absolutely charming article about how Lawrence is the town directly below your feet when you first fire up Google Earth.

2. A Canadian geography teacher lets Google Earth loose among his students and describes what happens.

3. A blog post hosted by the Belgian paper De Standaard reports (in Dutch) that in Greece, the military is not at all happy with the high resolution imagery of Athens that is publicly available in Google Earth. Apparently, they are upset that satellite imagery of Turkey is of lower resolution than that of Greece. I’m sure this problem could easily be fixed:-)

4. Google Earth and Maps are about to get their very own book, Hacking Google Maps and Google Earth, written by Martin Brown. (Via Let’s push things forward)

5. A Google Earth Community post reports that there is a location error for two locations in Russia. (I too have found that searching for Islamabad, Pakistan and Stockholm, Sweden leads to locations that are in-country, but not accurate at all.) Another user mentions that there is a data error reporting form for this sort of thing, with instructions.

6. Australian GIS company ER Mapper publishes layers of Landsat imagery of Australia from various years as a free KML network link, part of a demo of its web serving abilities.

7. Google Earth Hacks posts a network link that displays 38,000 geographically marked-up Wikipedia entries, the best 80 at a time in your current field of view. Pretty awesome way to surf and learn.

8. Wow, is the Times of India a one-note whining machine or what? And the paper has a tenuous relationship with the facts, especially if these get in the way of jingoistic pursuits (noted: Google Earth was launched June 28, 2005, not “almost 18 months ago”).

Google Earth censored in China?

The Opposite End of China comments on a thorough Wall Street Journal article about Google’s efforts to enter China, and the compromises it has had to make with the Chinese government regarding the censorship of information within its borders. Apparently, bits of Earth and Maps are censored in certain parts of China, as of a few weeks ago:

The balance has already proved tricky. Until recently, Google’s map and satellite-photo service offered Chinese Internet users something they rarely could see: a bird’s-eye view of the secret compound of Zhongnanhai, where the country’s top leaders live and work.

But in recent weeks, close-up views from Google’s satellite images of the leadership compound in Beijing have been blocked in at least parts of China. It’s not clear how widespread the blocking is, or whether the government is behind it. Google says it didn’t alter that part of its service for Chinese users. In any case, the feat betrays a high level of technical expertise.

Barring the possibility of this just being due to a bad connection, it is also not clear whether this censorship exist in just Maps, just Earth or both. I can imagine how it might be relatively easy to block specific high-resolution tiles for Maps, as these have specific fixed names, but it must be a lot more difficult to sniff out what Google Earth is sending and receiving. Another thing I wonder about — wouldn’t a dose of encryption make Google Earth exploration completely opaque to outside snoopers?

BTW, here is a site that links to Zhongnanhai. If anybody in China reads this, I’d love to see a screenshot of what Google Maps and Earth show at this location. (Location in Earth [KML], Maps)

If the Chinese government is blocking its own citizens from seeing where their leaders live, whereas the rest of the world can see just fine, we’re talking some major institutional paranoia.

NYT on Google Earth and Security

The New York TImes has a very competent article out today about the security concerns and border dispute issues that have followed the release of Google Earth. To me, the two new/interesting elements were:

1) a highlighting of how Google Earth is used by advocacy groups to monitor tropical deforestation or publicize prison camps in North Korea.

2) Comments by Andrew McLaughlin, a senior policy counsel at Google:

He said Google recently began talks with India centering specifically on images of the Kashmir border, long disputed by India and Pakistan. McLaughlin said Google had also entered into discussions with other countries over the past few months, including Thailand and South Korea. […]

Meetings with Indian officials or those from other nations have yet to result in a request that Google remove or downgrade any information, McLaughlin said. Nor has the United States government ever asked Google to remove information, he said.

I hope the “yet” does not imply that information downgrades are possible. If they are, I hope we’re informed ahead of time, so that we can take screenshots of the most interesting bits and keep them as overlays, albeit privately.

Google Earth gets better vector layers

Reporting better late than never: On December 13 Google Earth’s vector data was updated. Writes PenguinOpus on Google Earth Community, “Improved appearance of roads (especially in Europe) and multiple levels of density for business layers (eg: dining, lodging) are the biggest changes. Better road data should improve frame rate on low-end graphics cards when roads are turned on.”