Since 2016, Organizer @cindy_excites is managing the EU-wide project togetherscience.eu -- check it out! ### Reports Year 1: check out their logic model, description of stakeholders, and progressive view of civil society engagement in science. It's worth it to wade through the bureacratic wrappings to read the deep thinking of @cindy_excites on these topics! DITOs-D5.1-20161129.pdf ...
| Author | Comment | Last activity | Moderation | ||
|---|---|---|---|---|---|
| mathew | "well, B&H will sell it to you by the gallon. pricey to try out. $42-95 a gallon, but it sure will make a lot of targets. I tried to get chip..." | Read more » | about 8 years ago | |||
| cfastie | "This suggests that UK balloons, like UK kites, must be kept under 60 m agl without special permission. There are similar restrictions in the US but..." | Read more » | about 8 years ago | |||
| LaPa | "ok, THANKS all of you for the answers. I like that my research note elicits answers that can also affect other. I am interested to make experiences..." | Read more » | about 8 years ago | |||
| cfastie | "It would be great to have a few paints that: had reflectance spectra for 400 nm to 1000 nm, were exterior paint, were matte finish paint, were av..." | Read more » | about 8 years ago | |||
| mathew | "I haven't played around with it, but I'd assume a neutral gray "TV White" and "TV black" paint like these for TV camera calibration would be the be..." | Read more » | about 8 years ago | |||
| cfastie | "Another rather important topic is the strict altitude limitations for kites and balloons in the UK. Kites are not allowed to be more than 60m above..." | Read more » | about 8 years ago | |||
| cfastie | "I assume the kite line sold at the KAPshop is good braided polyester. Dacron is DuPont's brand of polyester, so it does not have to be Dacron. The ..." | Read more » | about 8 years ago | |||
| cfastie | "I don't know of any commercially available inexpensive calibration targets. A good calibration target will have the same reflectance for all wavele..." | Read more » | about 8 years ago | |||
| lionfish | "Good work on the balloon maths - hopefully will come in useful for other people. Also your research into which lines and winders - quite a common q..." | Read more » | about 8 years ago | |||
| LaPa | "Hi, 1) unluckily I don't have access to a spectrometer 2) wich are the companies where I can buy a cheap Calibration targets? 3) may it be fine to ..." | Read more » | about 8 years ago | |||
| cfastie | "First, the maths. 8 foot diameter balloon weighs 600 grams, so when inflated each cm² weighs 0.00321 grams 5.5 foot diameter balloon weighs 350 gra..." | Read more » | about 8 years ago | |||
| lionfish | "Thanks cfastie and stevie. @stevie: I feel I've not put enough detail in yet to explain how it works: I'll make a new note to explain it properly w..." | Read more » | about 8 years ago | |||
| stevie | "Awesome post! I'm sharing it with the Public Lab Grassroots Mapping google group incase other people want to ping in here. Great project! " | Read more » | about 8 years ago | |||
| cfastie | "This all looks like a lot of fun. I'm sure the bumblebees are very excited as well. The balloon looks great. It looks like a larger version of the..." | Read more » | about 8 years ago | |||
| LaPa | "Thank you Chris, I'm going to read with the attention the Ned Horning's note that you link! Have a good day! LaPa " | Read more » | about 8 years ago | |||
| cfastie | "Sorry I missed some questions. Calibration targets work outside or in a greenhouse. Calibration targets are hard to find and very expensive. But ..." | Read more » | about 8 years ago | |||
| LaPa | "Hi, could it be a good idea to choose as calibration target the bare soil area that is in each (thousands) photos? Best regards LaPa " | Read more » | about 8 years ago | |||
| LaPa | "1) Could be a good idea put the calibration targets of known spectral reflectivity in Greenhouse to include in the photos ? 2) Where can I get the..." | Read more » | about 8 years ago | |||
| cfastie | "NDVI is based solely on color (near infrared is one of the colors). If a camera records different colors for two leaves, the NDVI computed for tho..." | Read more » | about 8 years ago | |||
| LaPa | "Thank a lot all of you for the consideration and the suggestions! Chris, sincerely I didn't understand from your reply if you consider my directio..." | Read more » | about 8 years ago | |||
| liz | "Hi @LaPa, great to see your note! I'm tagging some other raspberry pi developers @rjstatic and @seankmcginnis " | Read more » | about 8 years ago | |||
| cfastie | "Hi LaPa, Your time-lapse videos are impressive. These are excellent teaching videos. You can clearly see that the NDVI values for the foliage of t..." | Read more » | about 8 years ago | |||
| pdhixenbaugh | "For next winter -- and in case this helps anyone -- there are some good (dichotomous) keys for identifying trees in winter! They often use bark, tw..." | Read more » | about 8 years ago | |||
| Bjorn | "Hi chmooze, To identify trees in Winter is kind of advanced; when you are in a City, even more; but I would like to motivate you to have a look on ..." | Read more » | about 8 years ago |