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warren 7251 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 is Vice President of the board of the Open Source Hardware Association, on the board of alternative education program Parts and Crafts in Somerville MA, on the advisory board of Personal Democracy Media's WeGov 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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Request for kite/balloon mapping help at Tidmarsh Farms wetlands restoration in Plymouth MA

by warren about 8 hours ago | 0 | 51 | 1

A LOT of events are coming up across the Public Lab network, folks -- this one on Saturday, Octob...

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What questions will you bring to the Barnraising?

by warren 5 days ago | 0 | 69 | 2

At the past two Barnraisings, in Morgantown, West Virginia ( #west-virginia ) and...

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Wrapping up Google Summer of Code 2017 at Public Lab

by warren 12 days ago | 1 | 82 | 3

Hi, everyone! This past week we wrapped up our fourth year of Google Summer of Code (see #gsoc), ...

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Draft: Collect a sample for laboratory analysis

by warren 12 days ago | 1 | 78 | 2

This is a draft, adapted from the DIY Oil Testing guide, authored wi...

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Report-back from second Open Call on Hurricane Harvey response and coordination

by warren 13 days ago | 0 | 103 | 1

We again had an Open Call yesterday on the topic of Harvey response and ~6+ pe...

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Web Working Group Update 20: August 2017

by warren 18 days ago | 1 | 92 | 1

Missed posting an update last month as I was traveling for a few weeks, but happy to be back for ...

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Report-back from Open Call on Hurricane Harvey response and coordination

by warren 21 days ago | 3 | 212 | 2

We had an Open Call today on the topic of Harvey response and 12+ people atten...

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Remove lens distortion from photos with FisheyeGL

by warren 25 days ago | 6 | 121 | 3

FisheyeGL is a new online tool for removing lens...

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Rough prototype of video analysis tool for monitoring a pixel's brightness/color over time

by warren about 1 month ago | 0 | 119 | 1

I've spoken with a few people over the past months about figuring out a way to monitor the color ...

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Photos from a kite mapping party in Somerville

by warren 2 months ago | 0 | 97 | 0

Hi, all - we had a great #kite-mapping-party on Monday evening, over a dozen people came out to m...

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Scissors-only build of wider papercraft spectrometer

by warren 3 months ago | 0 | 9,292 | 1

I worked a bit on an easier-to-cut-with-scissors process for this [modification to the papercraft...

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Web Working Group Update 19: June 2017

by warren 3 months ago | 4 | 82 | 1

Shorter update this month -- I was VERY late on [last month's](https://publiclab.org/notes/warren...

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Collaboratively write the new Pocket Guide to Grassroots Mapping

by warren 3 months ago | 1 | 171 | 1

As we gear up for the launch of our [new Mini Kite and Balloon Kits](http://kickstarter.com/proje...

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Stories of balloon and kite mapping in education

by warren 3 months ago | 0 | 128 | 1

As part of our series on all the amazing work that's been done with kite and balloon mapping over...

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Squid Week at Public Lab!

by warren 3 months ago | 1 | 98 | 1

Since we declared this week Kite Week on Twitter ([https://twitter.com/PublicLab/status/879687098...

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Challenges, questions and problem-solving together: choosing cameras for Mini Balloon and Kite Kits

by warren 3 months ago | 0 | 111 | 0

Thanks for a terrific first week of [our Kickstarter](https://www.kickstarter.com/projects/public...

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Balloon and Kite Mapping Stories, Part 1

by warren 3 months ago | 0 | 148 | 1

This is a series on #balloon-mapping, as part of our month-long Kickstarter campaign to launch ...

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Web Working Group Update 18: May 2017

by warren 3 months ago | 2 | 124 | 0

Many apologies for a late monthly update -- it's been busy! Brief summary as per GitHub Pulse: [h...

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Article on monitoring hydrogen sulfide with a copper pipe

by warren 4 months ago | 0 | 141 | 1

@sara posted a while ago referring to a techn...

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Use Google Drive to share large photo collections

by warren 4 months ago | 0 | 197 | 1

In #balloon-mapping, #timelapse, #photo-monitoring and other methods documented on this site, you...

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Share large numbers of photos (or files) using BitTorrent

by warren 4 months ago | 0 | 139 | 0

It's hard to share lots of images the way we often want to after Public Lab meetups, when we'...

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Web Working Group Update 17: April 2017

by warren 5 months ago | 0 | 169 | 1

Activity on the Public Lab website codebase has been a little lower than typical, in large part d...

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Google Summer of Code 2017 - and a call for community mentors

by warren 5 months ago | 34 | 293 | 6

Hi, everyone -- Google Summer of Code (#gsoc) is a great p...

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When is it OK to work with non-open components in open source work?

by warren 6 months ago | 0 | 295 | 3

At Public Lab, perhaps more so than in other open hardware oriented communities, we're often remi...

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Stitching Images into Maps with MapKnitter

by warren 6 months ago | 0 | 255 | 2

Once you have collected your images, you should set aside a block...

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Web Working Group Update 16: March

by warren 6 months ago | 0 | 188 | 1

The past month was a bit different from previous months, for a few reasons. I was traveling for 3...

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Next Saturday: Timelapse Kit workshop and Social Emergency Response Center in Somerville

by warren 6 months ago | 4 | 91 | 1

Hi, all -- on March 18th, next Saturday, a couple things are happening _you may want to join ...

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Web Working Group Update 15: February

by warren 7 months ago | 0 | 77 | 0

Hi, all -- this is our 15th monthly web working group update. This month has been quieter than th...

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Call for Summer of Code 2017 proposals!

by warren 7 months ago | 25 | 255 | 7

We're part of two different summer fellowship programs this year, [Rails Girls Summer of Code]...

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Build a juice bottle-based rig to carry two cameras

by warren 7 months ago | 0 | 89 | 1

This (old) guide shows how to make a protective case large enough for [two synchronized cameras](...

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What should we do at LEAFFEST?

cfastie asked about 1 day ago

Answers by warren

answered on Sep 19, 2017 1

answered on Sep 19, 2017 0

answered on Sep 19, 2017 0

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How can I add credit for main photo on Wiki?

Accepted

Zengirl2 asked about 2 days ago

Answers by warren

What are some sources of new aerial imagery of Harvey damages?

Accepted

warren asked about 7 days ago

Answers by warren

answered on Sep 12, 2017 0

answered on Sep 13, 2017 0

answered on Sep 16, 2017 0

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How do I join a volunteer Disaster Response Team for flooding?

Accepted

warren asked about 11 days ago

Answers by warren

What is the best way to formalize connecting needs with offers?

bsugar asked about 12 days ago

Answers by warren

answered on Sep 08, 2017 0

answered on Sep 08, 2017 0

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How much do different oil pollution tests cost?

Accepted

warren asked about 12 days ago

Answers by warren

What does oil pollution mean for my health?

Accepted

warren asked about 12 days ago

Answers by warren

How do I collect a sample for laboratory analysis?

Accepted

warren asked about 12 days ago

Answers by warren

How big are smoke particles, in microns?

Accepted

warren asked about 20 days ago

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Calibaration or switching scale?

jayjay70 asked about 20 days ago

Answers by warren

Just tried to publish a Replication of the KnowFlow and fail ...

MadTinker asked about about 1 month ago

Answers by warren

answered on Aug 03, 2017 0

answered on Aug 03, 2017 1

Show all 5 answers »

How To Make Time Lapse Spectrometer

LightWaveResearch8000 asked about 2 months ago

Answers by warren

How do I install a bootloader on a Riffle data logger?

Accepted

warren asked about 3 months ago

Answers by warren

Desktop Spectrometry Kit to arduino?

jjoll asked about 3 months ago

Answers by warren

How can we get rid of spam on the main PL page?

marlokeno asked about 3 months ago

Answers by warren

Can anyone help with weather station recommendations?

Accepted

stevie asked about 3 months ago

Answers by warren

Cheap, lightweight GoPro alternatives for aerial mapping?

Accepted

warren asked about 4 months ago

Answers by warren

answered on Jun 12, 2017 0

answered on Jun 14, 2017 0

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How can real-time camera monitoring be set up?

cherylh asked about 4 months ago

Answers by warren

answered on May 16, 2017 0

answered on Jun 19, 2017 0

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What are the health effects related to fine particles of calcium carbonate?

Accepted

stevie asked about 4 months ago

Answers by warren

answered on May 12, 2017 0

answered on May 12, 2017 1

answered on May 16, 2017 0

answered on May 22, 2017 1

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Decibel meters for iPhones?

Accepted

warren asked about 5 months ago

Answers by warren

Is this government security warning on NOAA new?

marlokeno asked about 6 months ago

Answers by warren

Good guides on doing a photo survey of a site?

Accepted

warren asked about 6 months ago

Answers by warren

answered on Mar 14, 2017 0

answered on Mar 14, 2017 0

answered on Apr 10, 2017 0

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JDEPC-OV05 camera intelligent exposure

tim_spec asked about 7 months ago

Answers by warren

what causes spectral colors to be reversed?

vgoebel asked about 8 months ago

Answers by warren

Fraunhofer Lines at higher resolutions?

stef asked about 8 months ago

Answers by warren

How to get spectral data in excel or other formats

Accepted

suha asked about 8 months ago

Answers by warren

Can you process multiple images at the same time?

JonathanM32 asked about 8 months ago

Answers by warren

orientation of slit vs that of diffraction grating

wlkwong asked about 9 months ago

Answers by warren

Video Infragram

Accepted

jfd asked about 9 months ago

Answers by warren

Ambient/Light Bulb Testing

idev247 asked about 10 months ago

Answers by warren

How do I make a video from a series of photos?

Accepted

warren asked about 10 months ago

Answers by warren

answered on Dec 05, 2016 0

answered on Dec 05, 2016 0

answered on Jul 23, 2017 0

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Spectral Workbench recording time?

Accepted

dhale2 asked about 10 months ago

Answers by warren

Calibration of spectra fails

Paul_P asked about 10 months ago

Answers by warren

Why copy calibration does not apply?

aelobo asked about 10 months ago

Answers by warren

Intensity for spectra too low?

chuynh451 asked about 11 months ago

Answers by warren

Is there an iPhone app for foldable spectrometer?

CanfieldC asked about 11 months ago

Answers by warren

Can you share a link to project documentation?

vwls asked about 11 months ago

Answers by warren

Error on calibrating uploaded spectrum

sarahcm asked about 11 months ago

Answers by warren

Can anyone help me troubleshoot my NDVI imagery?

abdul asked about 11 months ago

Answers by warren

lightweight air quality sensors for a weather balloon

glenc asked about 11 months ago

Answers by warren

answered on Oct 12, 2016 0

answered on Jun 19, 2017 0

Show all 2 answers »

how to delete my spectra on Spectral Workbench

redleon asked about 12 months ago

Answers by warren

How can I reduce ambient light inside the Desktop Spectrometry Starter Kit?

Accepted

warren asked about about 1 year ago

Answers by warren

answered on Sep 20, 2016 0

answered on Sep 20, 2016 0

Show all 5 answers »

What's the best way to archive/store a timelapse video?

warren asked about about 1 year ago

Answers by warren

answered on Sep 16, 2016 0

answered on Dec 08, 2016 0

Show all 2 answers »

Has anyone used a timelapse camera in stream monitoring?

stevie asked about about 1 year ago

Answers by warren

Question: What is the Open Source Community's Take the MIT License?

Accepted

nshapiro asked about about 1 year ago

Answers by warren

Does the new Question feature work?

Accepted

warren asked about about 1 year ago

Answers by warren

Question: Using a webcam with a image resolution of 1920x1020

seko asked about about 1 year ago

Answers by warren

Question: How to rename a set?

AndrewJamesLaplante asked about over 1 year ago

Answers by warren

Question: How do I get the calibration user interface?

PeterDH asked about over 1 year ago

Answers by warren

View these maps <a href='//mapknitter.org/profile/warren'>at MapKnitter.org &raquo;</a>

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