| Author | Comment | Last activity | Moderation | ||
|---|---|---|---|---|---|
| warren | "@RonHuber chimed in on the lists: We hypothesized the calcium carbonate dust emanating from the Cement Kiln Dust waste piles of a cement kiln near..." | Read more » | over 7 years ago | |||
| DavidMack | "There are a few methods but like most scientific work it isn't always conclusive. Wind direction. A locally sited meteorological station with win..." | Read more » | over 7 years ago | |||
| sarasage | "I am trying to figure out the same question. So far, I have decided that the most accessible method seems to be using mapping technology to correla..." | Read more » | over 7 years ago | |||
| mathew | "There is no clear way to conclusively prove PM came from a facility, but there are several inferences that can be drawn. Saturation Monitoring ma..." | Read more » | over 7 years ago | |||
| warren | "Another answer via @Zengirl2 !: I just wanted to add a study I found for Sri Lanka looking at health issues from Lime dust emission. The study loo..." | Read more » | over 7 years ago | |||
| liz | "Thank you all! I heard back form the community member (who was following along reading this), and they thank everyone for this information. The stu..." | Read more » | over 7 years ago | |||
| marlokeno | "Hi- As noted above, chalk, e.g. chalk dust in classrooms, and cement manufacture, are major sources of calcium carbonate pollution. Cement manufac..." | Read more » | over 7 years ago | |||
| warren | "Wig Zamore wrote in today as well, to add: A quick check of PubMed yields two abstracts that may be of interest and are pasted in below. Basicall..." | Read more » | over 7 years ago | |||
| warren | "Cheryl Holzmeyer wrote in to my email to the lists: I don't know if this is too general, but in case it's relevant (calcium carbonate is listed in..." | Read more » | over 7 years ago | |||
| rudolf455 | "the scale should have marks that indicate the wavelenghts up to 1 nm. spectral lines of different chemical elements are often very near together, ..." | Read more » | over 7 years ago | |||
| cfastie | "Can you share an example of your spectra? Are they on Spectral Workbench? What spectrometer did you use? Are you interested in a more precise scal..." | Read more » | over 7 years ago | |||
| kevwe09 | "download anthing for your mobile ketomob is the plc " | Read more » | over 7 years ago | |||
| kevwe09 | "Wapmon is a wap portal where users can get access to trending videos on the internet. This is a platform that has millions of videos up for users t..." | Read more » | over 7 years ago | |||
| reversevector | "There can be a lot of NIR contamination in the red channel when using RGN filters, especially in bright tropical sun at midday. To get higher NDVI ..." | Read more » | over 7 years ago | |||
| cfastie | "Are you interested in the difference between a blue filter and a red filter? A blue filter could be referred to as NGB (red is blocked and NIR repl..." | Read more » | over 7 years ago | |||
| reversevector | "I'm using an SJCam 4000, it's a cheap GoPro clone. It doesn't have custom white balance settings so I'm using incandescent with a red filter. I'm a..." | Read more » | almost 8 years ago | |||
| suman | "I was curious to know which modified camera do you use? For my case, i am testing with Modified Mobius actioncam with wide angle A lens 87mm. If yo..." | Read more » | almost 8 years ago | |||
| reversevector | "I'm also using VGYRM although I sometimes have to stretch the NIR value to get good results. " | Read more » | almost 8 years ago | |||
| suman | "The macro was developed by Frank Aldiuos, a member of public labs. It basically is doing same thing as processing from the directory where all the ..." | Read more » | almost 8 years ago | |||
| reversevector | "The Photo Monitoring plugin already has a command that generates NDVI from a folder full of images (Single image index processing from directory). ..." | Read more » | almost 8 years ago | |||
| warren | "@gretchengehrke @nickshapiro @liz -- do you have a link to the EDGI page monitoring tool to see if we can answer this? There's also the Wayback Ma..." | Read more » | almost 8 years ago | |||
| cfastie | "The text file attached above gives the correct RGB values for the NDVI_VGYRM lookup table. I put an image of the NDVI_VGYRM color gradient in my an..." | Read more » | almost 8 years ago | |||
| Jtaw | "update : I used the lookup table above and did not give me a good result. I hope it is not the colormap used by infragram and there is something el..." | Read more » | almost 8 years ago | |||
| Jtaw | "The lookup table will do for me. I'll try to generate an equation from this one. thanks a lot! " | Read more » | almost 8 years ago |