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Author Comment Last activity Moderation
GLwater "The Great Lakes basin has a few nonprofits as well as water treatment utilities working with gardening groups and some county extension Master Gard..." | Read more » almost 3 years ago
joyofsoy "Shared this on the Public Lab Twitter and received this response: Measuring conductivity might be a simple proxy...— Jérôme Pellet (@jeromepellet)..." | Read more » about 3 years ago
difautsch "I’ll see ya there! " | Read more » over 4 years ago
WaterGeek "Great work and super useful for citizen's looking to track the quality and state of open water. We've been looking into something like this for dri..." | Read more » almost 5 years ago
MadTinker "I would add the following: alkalinity, hardness, and perhaps ORP " | Read more » about 5 years ago
lbarcelo "How did you resolve these issues? " | Read more » about 7 years ago
cooperbreeden "David, I'm wanting to explore using this technology down in Nashville TN to monitor algae blooms. It's still completely brand new to me but I'd lov..." | Read more » over 7 years ago
warren "@wattminder - have you seen some of the recent work with the Riffle, for conductivity monitoring of water? Also f..." | Read more » over 8 years ago
warren "Ah oops, i'd already linked to it! Sorry! " | Read more » almost 9 years ago
warren "That'd be great - perhaps we could coordinate some kind of public outdoor activity. Are you on the boston discussion list? " | Read more » almost 9 years ago
dsittenfeld "Hi wow! Hadn't noticed all of this activity; thanks for the great ideas and links. I'm hoping to do more of this over the summer and would be happ..." | Read more » almost 9 years ago
warren " may also be a good resource. " | Read more » almost 9 years ago
cfastie "David, Did you see this note about the potential to indicate the presence of cyanobacteria using the difference between NDVI made with infrablue an..." | Read more » almost 9 years ago
eustatic "interested. i have a pal who works at Stennis space center looking at ocean color, and she was v interested in infragram. She will be going on a c..." | Read more » almost 9 years ago
warren "Well, when the time comes, i'm happy to help you connect with others in the area who are using multispectral photography; there's a Boston-area mai..." | Read more » over 9 years ago
dsittenfeld "Hi Jeff, Sorry I was away from internet for a while and just seeing this. The place where we were trying is generally a pretty good place to look..." | Read more » over 9 years ago
warren "Hi, David - exciting possibilities. Is there a place where blooms may be more common so you can do a proof of concept? Great to see you using Infra..." | Read more » over 9 years ago
warren "I ended up trying some semi-opaque plastic but indeed the light has to be really strong as a result:" | Read more » over 9 years ago
philippg "@warren: as sensitivity is my main concern, i'd really avoid masking even more intensity. i'm currently experimenting a bit with possible diffusors..." | Read more » over 9 years ago
warren "Instead of a calibrated light source, what about scanning a sample and non-sample simultaneously, so that you can actually measure the input light ..." | Read more » over 9 years ago
philippg "@straylight: 'How much water depth (or column depth) is typically analysed when looking for the chlorophyll-A using absorbance ? Is it in the order..." | Read more » over 9 years ago
gbathree "We do have some information about the unit itself and the science behind it if you go to our project page at" | Read more » over 9 years ago
webbhm "Do you have any information on your instrument, how you take the chlorophyll readings? I see a good bit on how you are wanting to automate the dat..." | Read more » over 9 years ago
webbhm "I volunteer with LMVP (Lakes of Missouri Volunteer Program), and they conduct water quality monitoring. Their algae sampling is quite formal, wher..." | Read more » over 9 years ago