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Project Data
Simple, inexpensive aerial photography mapping
Project Description
•Chapter: EWB-USA San Francisco Professionals
•Project: Simple, Inexpensive Aerial Photography Mapping with Balloons,
Kites or R/C aircraft
•Location: Various
•Project phase: Demonstrated technology, available for chapters to use in
their projects
•Cost: As little as $100 for a complete mapping kit
•Contact: Patrick Coyle, [email protected], belizeopensource.org
•Professional partners:
• Jeff Warren, Grassroots Mapping; grassrootsmapping.org
• Stewart Long, Gonzo Earth: gonzoearth.com
•Partner organizations in local communities:
• Louisiana Bucket Brigade, labucketbrigade.org
• Belize Open Source - Sustainable Development, belizeopensource.org
•Name of significant donors or contributors: Numerous, see lower right
image with names
Aerial photomaps can be very useful to EWB chapters for community,
site and project planning; agricultural/ ecological planning and
evaluation
•This poster shows how to make simple inexpensive aerial photomaps.
This approach was presented and demonstrated at the EWB West
Coast Regional Workshop in October 2010
•What’s needed: equipment, software, supplies, materials
•digital camera with ability to take photos automatically
•GPS unit with tracking and logging capability (where needed)
•A package to house the camera and GPS unit
•Balloon or kite with enough lift capability to carry the camera, GPS
unit, housing and sufficient tether line to reach height of interest for the
photographs (or R/C aircraft)
•A safe approach to use the process in the field
•Capability to process the data and present the results
•An approach to discuss and use the results
•This poster points to web resources and an on-line Illustrated Guide
•Examples are shown from community of users
•We’ll demonstrate – let’s go fly!
•Stop by after – see results, Q&A
•Get Involved at grassrootsmapping.org
•See the Wiki for techniques and tools, case studies
•Participate: join the Mailing List!
•Start a grassroots mapping project today!
•Apply techniques to your project
Community maps in Lima
Peru, Jeff Warren with children
and adults in community
A complete grassroots mapping kit by Jeff
Warren
In April 2010, Deepwater Horizon rig
exploded and sank in the Gulf of
Mexico - volunteer aerial mapping
teams documented the spill (image by
LA Bucket Brigade/Gonzo Earth)
LA Bucket Brigade volunteers map with
balloons and kites
Gulf oil spill mapping approach•Participants visit an affected area, fill a balloon or prepare a kite
depending on wind conditions, and send the camera in its
homemade protective enclosure up to 2000 feet in the air
•By walking along the beach or moving in a boat, several kilometers
of coastline may be imaged in just a few hours
•Between May 7 and July 22, 2010, dozens of participants made 36
trips to gather mapping data, averaging almost one trip every other
day
•Only one trip failed to return with imagery, 56% of the trips
returned with "excellent" or "usable" data, and over 11,000 images
were taken
•The maps use orthorectified photographs of key affected sites
processed into GeoTIFFs and tiled map services (TMS) - the public
domain photographs, taken from balloons or kites, are among the
highest resolution imagery available of the spill
•Two different manual processing methods have accounted for the
bulk of the mapping for Grassroots Mapping
grassrootsmapping.org to date:
•Gonzo Earth Image Processing is a workflow of different
commercial off-the-shelf (COTS) and open-source GIS and digital
image software packages, which has been used to generate dozens
of maps from balloons, kites, remote controlled and manned
aircraft
•The Cartagen Knitter software consists of a free web-based
interface for users to upload and rectify images from a web browser
•Both export finished maps in standard formats including GeoTIFF
and TMS, to be viewed in common GIS tools and integration into
existing workflows
Port Sulphur Wilkinson Bay imaging
by the LA Bucket Brigade/Gonzo Earth
Stitch of the oil spill at Chandeleur
Islands by Jeff Warren
Mestia, in Georgia: map spans
5.5 kms, Jeff Warren with local
OpenMapsCaucasus staff and
participating students
Belize Open Source plans to
use these techniques with
EWB chapters, schools and
communities in Belize
R/C aircraft testing in
San Diego with pilot
John Shultz