All posts by Stefan Geens

Google Earth to version 3.0.0529 Beta

A new version of Google Earth is out.

From the changelog:

Features

And then there were two

There’s another blog obsessed with all things Google Earth: Google Earth Blog, written by Frank Taylor. Amazingly, it’s been flying under my radar for nearly a month (perhaps because it isn’t pinging Technorati et al?)

The more Google Earth blogs the merrier — be sure to add it to your bookmarks if you want the most complete coverage possible of Google Earth.

Pixagogo adds Google Earth support

Pixagogo adds a KML feed next to its RSS feed for labels, containing all the latest photos for that label, ready for viewing in Google Earth.

What you really need to do to get this to work properly is: Grab the URL of a particular label’s KML feed, go to Google Earth, add a network link, and then paste the URL into the source field. If you just click on the KML feed link in your browser, you will open a static file.

What Pixagogo (and several other sites) could do is offer up a ready-made KMZ network link file that links to the feed, rather than just the feed. This makes subscribing simpler and easier.

New US guidelines for disseminating aerial imagery

A US Geological Survey committee on Thursday posted new guidelines for disseminatng aerial imagery of the type Google Earth buys from vendors, according to a GovExec.com article citing the National Journal’s Technology Daily.

Apparently, the new guidelines exist in order to safeguard the public’s access to imagery, rather than to restrict it further:

The decision to draft the guidelines was made because some organizations “curtailed access without assessing the risk to security” before considering the public benefit.

That might be spin, but it just so happens that Google’s imagery recently became less censored, not more. In any case, the new guidelines “do not grant any new authority,” and mainly exist to clarify existing policy.

I went hunting for these guidelines on the USGS website, and soon discovered that this site is in serious need of an information architect to beat some sense into that sprawling mess. It’s fiendishly hard to try to find updated info when none of the component sites talk to each other.

Eventually, I did find a final draft dated June 2005, Guidelines for Providing Appropriate Access to Geospatial Data in Response to Security Concerns, a 3 16-page PDF, on the website of something called the Federal Geographic Data Committee. I’m guessing these are the guidelines that were adopted.

In these guidelines, the uniqueness of information is a factor in deciding whether imagery should be restricted. If imagery is available from open sources elsewhere, the guidelines clearly note, restricting the data is not justified.(None of this applies to non-US data providers.)