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warren 8146 research notes and wiki edits | Admin

The creator of GrassrootsMapping.org and co-founder and Research Director for Public Lab, Jeffrey Warren designs mapping and civic science tools and professionally flies balloons and kites. Notable software he has created include the vector-mapping framework Cartagen and orthorectification tool MapKnitter, as well as open spectral database and toolkit Spectral Workbench.

He served from 2015-17 as Vice President of the board of the Open Source Hardware Association, is on the board of alternative education program Parts and Crafts in Somerville MA, and an advocate of open source software, hardware, and data. He co-founded Vestal Design, a graphic/interaction design firm in 2004, and directed the Cut&Paste Labs project, a year-long series of workshops on open source tools and web design in 2006-7 with Lima designer Diego Rotalde.

Jeff holds an MS from MIT and a BA in Architecture from Yale University, and spent much of that time working with artist/technologist Natalie Jeremijenko, building robotic dogs and stuff. To find out more, visit Unterbahn.com.


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102 questions asked

214 answers posted

53 activities posted

6 activities attempted


Joined about 7 years ago

Using Knitter to create online maps from your Photoshop map stitches

by warren almost 7 years ago | 0 | 3,483 | 2

For those who are comfortable doing their map stitching in Photoshop, but for whom the GDAL tools...

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Notes from Tues April 12 staff call

by warren almost 7 years ago | 0 | 1,722 | 2

Stewart Long, Shannon Dosemagen and I had our bi-weekly meeting today. We reviewed [last weeks li...

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Notes from Tuesday PLOTS staff call

by warren almost 7 years ago | 0 | 1,760 | 0

Stewart Long, Shannon Dosemagen and I caught up given that we're all working on PLOTS full time n...

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Extra-slow SD cards for balloon mapping

by warren almost 7 years ago | 1 | 1,465 | 2

For balloon mappers: I found this note on SD card write speeds. Some of us had discussed the idea...

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NDVI-NRG infrared tests from an airplane

by warren almost 7 years ago | 0 | 2,874 | 0

Clockwise from top left: normal visible light, infrared, NRG, NDVI: <a href="http://publiclabo...

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Live video NDVI with infrared-visible-video-kit

by warren almost 7 years ago | 0 | 2,277 | 2

<iframe title="YouTube video player" width="480" height="390" src="https://www.youtube.com/embed/...

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Spectral comparison tutorial for amateur astronomers

by warren almost 7 years ago | 3 | 1,892 | 3

A tutorial on "how to superimposed spectra and to make sure the comparison is scientifically rele...

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Port Sulphur reference map

by warren almost 7 years ago | 0 | 1,279 | 2



Third thermal photo

by warren almost 7 years ago | 0 | 1,699 | 0

Here we're starting to see some actual features. I'm still not sure what the striping represents,...

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Thermal photo 2

by warren almost 7 years ago | 0 | 1,656 | 0

OK, we're starting to see things. But I think this is mainly due to our ceiling-mounted space hea...

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First thermal photo

by warren almost 7 years ago | 0 | 1,657 | 0

Obviously we have some issues. Interestingly you can see that we're scanning faster than the refr...

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Gowanus Canal balloon tests

by warren almost 7 years ago | 0 | 1,248 | 2

<object type="application/x-shockwave-flash" width="400" height="225" data="https://www.flickr.co...

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Guides wiki page

by warren almost 7 years ago | 0 | 1,558 | 2

http://publiclaboratory.org/wiki/guides

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Pyrex thermal infrared transmissivity

by warren about 7 years ago | 0 | 4,753 | 0

Here's a $55 pyrex lens that you can measure temperature through with a thermal IR sensor: htt...

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Melexis thermometer sensitivity is 5.5 um to 15 um

by warren about 7 years ago | 0 | 1,802 | 0

There's a great thread on lenses for IR thermometers here: http://www.electronics-related.com/...

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Roomba indoor air-quality sensing by RISD students

by warren about 7 years ago | 0 | 1,649 | 2

See more: https://www.flickr.com/photos/jeffreywarren/5396892754/ and read about the RISD t...

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Article: MODIS Detects Oil Spills in Lake Maracaibo, Venezuela

by warren about 7 years ago | 0 | 2,761 | 0

Abstract: "The article highlights the unprecedented capability of MODIS 250-m bands for coast...

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NRG image of Lima from balloon

by warren about 7 years ago | 1 | 2,555 | -1

From the Morflex untethered flight a couple weeks ago. Compare to: http://landsat.gsfc.nasa.gov/e...

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Focus shift in bifocal filter?

by warren about 7 years ago | 1 | 2,750 | 0

Does this image show focus shift? It seems like the infrared is in focus while the visible is not...

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Kinect for 3d mapping from a car

by warren about 7 years ago | 2 | 3,199 | 0

http://blog.decoratorpattern.com/2011/01/23/real-world-mapping-with-the-kinect/ I've been wond...

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Images arriving from loose flight over Lima

by warren about 7 years ago | 0 | 2,102 | 0

https://www.flickr.com/photos/jeffreywarren/5383641520/ more soon as they transfer

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Nice spectra

by warren about 7 years ago | 0 | 1,380 | 2

https://www.flickr.com/photos/jeffreywarren/5378506464/

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Grassroots Mapping is an Honorable Mention for Best Tech Project at the 2010 Kickstarter Awards

by warren about 7 years ago | 0 | 1,274 | 2

http://blog.kickstarter.com/post/2699478143/best-technology-project

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Great shot for NDVI

by warren about 7 years ago | 0 | 2,361 | 0

From 2nd day flights at FabLabLima

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View these maps at MapKnitter.org »

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role:organizer skill:coding organizers place:somerville-ma organizer location:blurred place:somerville github:jywarren instagram:unterbahn group:education lat:41 lon:-71 wwg