| Author | Comment | Last activity | Moderation | ||
|---|---|---|---|---|---|
| stevie | "Thanks for the answer. One of the problems I think we'd run into in Louisiana is that the water is pretty muddy there (the Muddy Mississip!!). This..." | Read more » | over 5 years ago | |||
| cfastie | "The intense red tide blooms (Karenia brevis) in the Gulf of Mexico are easy to detect with normal color photography because they are red (top image..." | Read more » | over 5 years ago | |||
| MaggPi | "Not sure if all algae blooms have the same red color but it looks like the ones in Florida peak at 700nm. See: https://hyspiri.jpl.nasa.gov/downl..." | Read more » | over 5 years ago | |||
| whiteice217 | "There is a service I heard about on a TED talk at www.planet.com. Apparently they are using satellites to take daily pictures of the earth for comp..." | Read more » | over 5 years ago | |||
| warren | "Wow, this is a great map! " | Read more » | almost 6 years ago | |||
| eustatic | "cool, i don t think that mine got published " | Read more » | almost 6 years ago | |||
| difautsch | "I’ll see ya there! " | Read more » | almost 6 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 » | about 6 years ago | |||
| MadTinker | "I would add the following: alkalinity, hardness, and perhaps ORP " | Read more » | over 6 years ago | |||
| lbarcelo | "How did you resolve these issues? " | Read more » | over 8 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 » | almost 9 years ago | |||
| warren | "@wattminder - have you seen some of the recent work with the Riffle, for conductivity monitoring of water? http://publiclab.org/wiki/riffle Also f..." | Read more » | almost 10 years ago | |||
| warren | "Ah oops, i'd already linked to it! Sorry! " | Read more » | about 10 years ago | |||
| warren | "That'd be great - perhaps we could coordinate some kind of public outdoor activity. Are you on the boston discussion list? http://publiclab.org/lists " | Read more » | about 10 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 » | about 10 years ago | |||
| warren | "http://publiclab.org/notes/warren/6-6-2011/chlorophyll-imaging-track-algal-blooms may also be a good resource. " | Read more » | about 10 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 » | about 10 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 » | about 10 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 10 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 10 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 10 years ago | |||
| warren | "I ended up trying some semi-opaque plastic but indeed the light has to be really strong as a result: http://publiclab.org/notes/warren/07-31-2013/m..." | Read more » | over 10 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 » | almost 11 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 » | almost 11 years ago |