Aftertherain_suzannemcdaniel_landscape2

Open Water

Main image above is by Suzanne McDaniel, and was taken at Island End River in Chelsea, MA, part of the Mystic River watershed. Suzanne's photo was one of the winners of the MyRWA photo contest.

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Notes tagged with open-water

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Pearl River Monitoring in Guangzhou

by shanlter 5 months ago | 6 | 423 | 3

I paddle every week with Guangzhou International Dragon Boat Club in Pearl River. The water qual...

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Build a Coquí: A Simple Water Conductivity Sensor

by akshaya 5 months ago | 6 | 775 | 4

The Coquí is a simple water conductivity sensor designed by @donblair that is designed for use...

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Mapping Lead-Free Water

by smmontgom 6 months ago | 0 | 345 | 0

As I'm sure folks on this forum are aware, [lead is toxic](http://www.huffingtonpost.com/dr-mark-...

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Removing ambient interference from turbidity measurements through signal modulation

by donblair 12 months ago | 6 | 1,873 | 3

Turbidity is an optical measurement of suspended solids in solution -- a broadly useful water qua...

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Photos of building Coquis in Hong Kong

by liz about 1 year ago | 0 | 870 | 1

From the time period January 21-24 [![IMG_3582.JPG](//i.publiclab.org/system/images/photos/000/0...

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Pencil lead works well as an electrode material in lead analysis

by JSummers about 1 year ago | 0 | 1,606 | 7

This was a test to see if pencil lead can be used as an electrode material in electrochemical le...

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Conductivity Sensing: Open Questions

by donblair about 1 year ago | 4 | 1,343 | 7

A lot of people are interested in measuring conductivity in liquids -- because it provides a u...

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Riffle Water Bottle Enclosure: rubber stopper w/hole + silicone sealant: > 8 weeks!

by donblair over 1 year ago | 6 | 2,687 | 3

[photo credit: Liz Barry. Shocked cereal box credit: D'Ignazio family] We've been experimenti...

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Suratá Visible -- Part I

by donblair over 1 year ago | 2 | 1,360 | 2

Hallo! This is a long overdue first post on an amazing project that I participated in towards th...

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buoy for water sensor

by DavidMack over 1 year ago | 2 | 3,028 | 4

Create a durable, reusable buoy packaging system for water sensors: 1.) measure parameters ...

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Rubba Stoppaz

by donblair over 1 year ago | 8 | 2,654 | 3

Finally getting around to testing @mathew 's clever ideas around sealing up plastic water bottles...

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Riffle: sensor board approach

by donblair over 1 year ago | 6 | 2,572 | 3

One idea that came up in Colombia (and, really, in various forms earlier, at LEAFFEST and elsewhe...

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Riffle Datalogger: quick development snapshot

by donblair over 1 year ago | 1 | 2,213 | 1

This is an attempt to take a quick snapshot of the Riffle open hardware water monitor project,...

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Wireless 001

by donblair over 1 year ago | 4 | 2,097 | 1

[header image from dev.physicslab.org] A first pass on notes re: various options for broadc...

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Dock Test!

by donblair over 1 year ago | 0 | 1,740 | 6

Today Laura Perovich led Joe Goldbeck and me on an expedition to the Charles River to deploy a te...

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Turbidity 001

by donblair over 1 year ago | 4 | 2,831 | 2

Just wanted to gather some useful materials around turbidity -- how it's usually assessed, and va...

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Buoyancy-Driven Underwater Glider

by ajawitz over 1 year ago | 12 | 5,539 | 4

I want to develop an underwater autonomous vehicle based on a design the US Navy developed for...

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Riffle-328p version 0.96 :)

by donblair almost 2 years ago | 5 | 3,015 | 3

Quick update on the latest design for the Riffle ... But first, a quick review: Several of ...

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sensors in soda bottles

by mathew almost 2 years ago | 6 | 3,035 | 2

I want to keep electronics dry while wired to underwater sensors. I did a short test of a simpl...

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sketching a waterproof pop bottle sensor system

by mathew about 2 years ago | 4 | 3,343 | 0

I want to make a way to reliably put sensors through the cap of a PET bottle. the [Open Water Pr...

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Dreaming of sensitive friends

by warren over 2 years ago | 1 | 1,747 | 6

I took these portraits in a session at the open water workshop at Propeller, in New Orleans, toni...

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Coqui PCB + audio jack

by donblair over 2 years ago | 0 | 1,479 | 1

[![coqui-v1.0-schem.png](https://i.publiclab.org/system/images/photos/000/007/466/medium/coqui-v1...

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Conductivity Results from 3 Water Samples

by madelinebilis over 2 years ago | 0 | 1,060 | 0

by Ariana Marini and Madeline Bilis In reference to three water samples described in a [prev...

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Follow up — Group 2 Water Sample Results

by jacktemp over 2 years ago | 0 | 967 | 0

Group 2 — Results Our, which are posted on youtube [here](https://www.youtube.com/watch?v=...

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Collect 3 Water Samples for Testing

by amarini over 2 years ago | 2 | 2,322 | 0

Samples collected by Ariana Marini & Madeline Bilis JR-368 Emerson College Data Visualizatio...

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Duty Cycles & 555s --> linearity!

by donblair over 2 years ago | 15 | 3,540 | 3

I had a great long chat with [Mark Brownawell](http://www.linkedin.com/pub/mark-brownawell/5/530/...

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Coqui draft board design on Upverter

by warren over 2 years ago | 8 | 1,861 | 1

Make a simple through-hole Printed Circuit Board for the Coqui <$5 water conduc...

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Recap: Open Water Workshop, 7/12/14

by donblair over 2 years ago | 6 | 4,947 | 6

...

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Water Quality Workshop July 12th @ MIT Media Lab

by donblair over 2 years ago | 1 | 2,298 | 0

Please RSVP here so that we can make...

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Idea for<$5 analog thermal fishing bob

by warren over 2 years ago | 1 | 1,580 | 5

Using 555 timers and no Arduino... Only red/blue LEDs!

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