| Author | Comment | Last activity | Moderation | ||
|---|---|---|---|---|---|
| lbarcelo | "How did you resolve these issues? " | Read more » | over 8 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 | "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 | |||
| 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 » | almost 11 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 » | almost 11 years ago | |||
| straylight | "wow, what a great sounding project Philipp. I like your thinking. Taking an average over 10 or more rows of the camera image is really good. The i..." | Read more » | almost 11 years ago | |||
| eustatic | "this is cool. I'm in the Gulf Coast of the United States. We have a large algal bloom that happens every year, as well as a lot of nitrate waste ..." | Read more » | almost 11 years ago | |||
| philippg | "hey wattminder, what kind of contaminants can be expected? if they have a specific optical signature, then they can be detected with optical spect..." | Read more » | almost 11 years ago | |||
| wattminder | "Hi Philip, This is very interesting and timely. California is now experiencing a huge boom in Hydraulic Fracturing, a practice that employs water a..." | Read more » | almost 11 years ago |