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The Deepwater Impact Tour

I recently put together a Google Earth tour showing the extent of the Deepwater Horizon oil spill in relation to Marine Protected Areas (MPAs) and Marine Ecoregions – these latter two layers provided by the Commission for Environmental Cooperation (CEC).  Here is the result and my organization’s original blog posting. It’s mind-boggling to see how many and to what extent the MPAs are being affected.  Of particular note is the spill’s overlap with the Northern Gulf of Mexico Ecoregion, which contains over 60 percent of the tidal marshes of the United States. 60 percent. Just think about that.

I posted the original tour nearly two weeks ago. Very quickly, it was posted to Google Earth Outreach and picked up by the CEC, who created a YouTube video based on the tour:

See also the Huffington Post and Protected Planet Ocean.


San Francisco Maps

A lot of very cool San Francisco maps have been popping up lately, so I thought I’d pull a few of them together. The first is The Islands of San Francisco by Burrito Justice:

Islands of San Francisco

This is exactly how I picture SF neighborhoods in my head.  The “canals” make neighborhoods seem much further than they really are. In the Twin Cities or even Los Angeles, I wouldn’t have thought twice about going a couple of miles. In San Francisco, though, it seems to take a lot more planning and ambition. Two miles? That’s nearly a third of the city!

The second has seen a lot of press lately and is one of the maps from the Geotagger’s World Atlas by Eric Fischer:

Geotagger's World Atlas - San Francisco

This map represents Flickr photos taken around the city. Using the photos’ timestamps and geotags, Fischer could determine where and at what speed the photographers were traveling – black lines represent speeds less than 7 mph (walking), red is less than 19 mph (biking), blue is less than 43 mph (motoring), and green is faster (jetpacking) – all plotted on an OpenStreetMap base layer.

Eric Fischer is responsible for another great San Francisco map, A day of Muni, according to NextBus:

A day of Muni, according to NextBus

This map uses the same color scheme to show average speeds of Muni vehicles over 24 hours.  Data was pulled from the SFMTA website.

This fourth map was created by my colleague, Tim Sinnot over at The Swordpress:

Paint by Number San Francisco

Sinnott used address data from DataSF to shade locations based on their address number. As you walk down a block, the color changes as the address numbers change.  Cool map based on a cool idea.

And finally, the much discussed Paramount Studio map of California’s geographical facsimiles:

Paramount Studio map of California's geographical facsimiles, fron The Motion Picture Industry as a Basis for Bond Financing, 1927

While this map isn’t focused on San Francisco, I still thought it was worth including in this post. Look how close we are to the Sudan Desert! This really makes me want to drive around California, shooting home movies.  Who’s in?


A shiny new ParkInfo

My organization, GreenInfo Network, has developed and continues to develop an outstanding geospatial database of parks and open spaces throughout California, called the California Protected Areas Database (CPAD). To showcase CPAD, we built a site that allows users to search for parks, trails, and campgrounds around the state. And now finally, after many sleepless nights (mostly for the other half of our web development team – over in the far reaches of Minnesota), we are able to unveil a brand new version of ParkInfo:

ParkInfo

ParkInfo was given a well-deserved face lift, complete with a brand new custom base map that allows us to display our (very good and accurate) parks without the interference of other (oftentimes quite inaccurate) parks. The street and boundary data comes from Open Street Map.

The site is still a work in progress at the moment, as we move everything into the cloud and tie up a few loose ends.  But all in all, it’s a great map and a great service for anyone interested in California parks.


Converting KML to KMZ without Google Earth

I’ve run into a few problems when saving KML as KMZ in Google Earth, most notably when referencing web-accessible images in the balloons. At times, it appears Google Earth switches out the absolute paths with relative, local paths. Not so helpful when building a KML for a client who isn’t sitting next to me at my own computer. After searching for a solution to this problem, I stumbled upon a quick way to convert a KML to a KMZ while preserving the structure (and paths) of the original KML:

KMZ is really just a zipped version of a KML. So, simply zip up your KML using your favorite archiver (I’m currently using 7-Zip), change the .zip extension to .kmz and you’re done.  Of course, you can always unzip the KMZ to get back your original KML.

As an extra bonus, I’ve found that it sometimes produces smaller KMZs than does saving the file with Google Earth. And when developing layers for the GE plugin, every little bit you can do to shrink your file size helps.