Last October Robin Kraft posted an online map of the northern California wildfires showing satellite imagery from before and after the fires (see previous entry); today he’s posted a blog entry explaining how he built it, in great technical detail. The timing is not accidental: “There is another fire raging in Los Angeles right now — if DigitalGlobe and Planet release their data, you can use this guide to make your own map.”
Today marks the 100th anniversary of the Halifax Explosion, which took place when a French cargo ship laden with explosives collided with another ship in Halifax Harbour. The resulting blast killed around 2,000 people and devastated the city of Halifax, Nova Scotia; it was the largest artificial explosion of the pre-nuclear age.
Maps Mania points to a couple of interactive maps of the explosion produced by Canadian news media. CBC News’s A City Destroyed: Experience the Halifax Explosion 100 Years Later is a bit over-produced, with 360-degree video and a non-clickable map that immediately segues into a 3D environment with limited interactivity. (It also pegs one of my CPU cores.) Global News’s interactive map is more modest in scope: developed by Patrick Cain, it’s a Google Maps mashup that points to the known addresses of those killed by the explosion. (Casualties in Dartmouth, across the harbour from Halifax, aren’t mapped because the data weren’t available.)
The destruction wrought by the Tubbs Fire in northern California, and the speed at which it spread, is mapped with excruciating detail by the New York Times graphics team.
Sonoma County’s wildfire information page points to a number of useful maps: fire perimeter boundary maps, current evacuation areas, road closures, rapid evaluation safety assessment (RESA) maps. The City of Santa Rosa’s emergency information page also has maps specific to that city; Heavy also has a roundup. See also Cal Fire’s structural status information map. [The Mercury News]
Previously: Mapping the Northern California Wildfires.
Maps and satellite imagery of the wildfires in Northern California include the San Francisco Chronicle’s interactive map; Robin Kraft’s interactive map showing satellite imagery from before and after the fire; this New York Times page mapping building damage in Santa Rosa; the Washington Post’s coverage of the devastation; and NASA Earth Observatory’s images of the smoke plumes here and here.
Today Facebook announced disaster maps for use by relief organizations. Based on aggregated and anonymized user data, the maps of users’ location, movement and check-ins can, Facebook says, provide relief organizations with valuable information about where the need is greatest. At launch only the Red Cross, UNICEF and the World Food Programme will have access to the data; a process will be established to determine how it will be shared with others. [Engadget]
This is a list of maps related to the flooding in southern Alberta (Calgary, Canmore, Bragg Creek, High River, Okotoks, etc.). This list will be added to as needed. Feel free to contribute additional links in the comments.
- Evacuation zone maps from the City of Calgary, in PDF format.
- For a wider view, an interactive map of Calgary evacuation zones from CBC News.
- A map of flooding zones across Alberta.
- A flood report map from the Calgary Herald, using reader submissions.
- A mobile site for crowdmapping flood reports (thanks, Matt).
Update, 10:15 PM:
Update, June 22 at 8:25 AM:
- Google’s Alberta Flooding Crisis Map.