| Author | Comment | Last activity | Moderation | ||
|---|---|---|---|---|---|
| cfastie | "Session idea: Is a NASA AeroPod or a KAPtery SkyPod a more appropriate data logger for collecting data during kite flights? (2 hours) We might ha..." | Read more » | about 7 years ago | |||
| cfastie | "Session idea: Is it a good idea to start a business designing, manufacturing, and selling environmental science tools? (30 minutes?) A few years a..." | Read more » | about 7 years ago | |||
| cfastie | "Session idea: Why do people use Arduinos to make environmental data loggers? Are there alternatives? . I can lead this discussion (30 minutes?). D..." | Read more » | about 7 years ago | |||
| cfastie | "Hi Juanjo, It would be good to see some photos from your archaeological missions, including more of the cool kite and how you attach the camera. A..." | Read more » | about 7 years ago | |||
| cfastie | "The Melexis MLX90614 Non-Contact Sensor has a temperature range of -70°C to +380°C. This is an infrared sensor so it does not have to touch the thi..." | Read more » | about 7 years ago | |||
| cfastie | "Whatever program you use to geotag your photos, make sure your photos were taken with a camera which had the correct time and timezone set. Most pr..." | Read more » | about 7 years ago | |||
| cfastie | "ExifTool by Phil Harvey is the industry standard command line tool to extract or modify the information in the EXIF header of image files: ExifToo..." | Read more » | about 7 years ago | |||
| cfastie | "The original photo above has some potential for conversion to NDVI, but the red channel (NIR) is not very much brighter than the blue channel (blue..." | Read more » | about 7 years ago | |||
| cfastie | "Leslie, it's really good you got this working. Thanks for troubleshooting the RTC library. It looks like the library I have been using is the MrAlv..." | Read more » | about 7 years ago | |||
| cfastie | "Sorry I was wrong about your original photo being grayscale. You are correct that it is color photo. All three color channels are extremely similar..." | Read more » | about 7 years ago | |||
| cfastie | "There was a spam comment on this note which I deleted today. This is note number 7? " | Read more » | about 7 years ago | |||
| cfastie | "Your image "660_850_Orginal.jpg" is a grayscale photo. The photo taken with your camera should be a three color photo with different values in the ..." | Read more » | about 7 years ago | |||
| cfastie | "Isn't that what research notes are for? Aren't research notes how we keep up with each others' activities? If research notes fail to accomplish thi..." | Read more » | about 7 years ago | |||
| cfastie | "It would be fun to try an Aeropod. I couldn't find any details about the instruments, but it looks like an awesome contraption to fly. " | Read more » | over 7 years ago | |||
| cfastie | "A pitot tube measures air pressure and uses fancy math to relate that to wind speed. I assume the ones on airplanes work better than the Rev P. " | Read more » | over 7 years ago | |||
| cfastie | "I decided not to drop into the rabbit hole of applying time series analysis to these data. There does appear to be some periodicity present, but I ..." | Read more » | over 7 years ago | |||
| cfastie | "It will be important to modify your two camera system so the photo pairs capture the same scene. It will also be important to align the two photos ..." | Read more » | over 7 years ago | |||
| cfastie | "I have a hypothesis about the different results obtained with two BME280 sensors on the flying rig. A difference of 3° to 4°C is more than should b..." | Read more » | over 7 years ago | |||
| cfastie | "Yes, the newer Rev. P sensor works better in high wind because it has a strong heater so the wind can't cool it off too fast. But the older Rev C s..." | Read more » | over 7 years ago | |||
| cfastie | "With this filter in front of your camera lens, the photos captured will include mostly near infrared light. There will be some visible light includ..." | Read more » | over 7 years ago | |||
| cfastie | "A running mean of the aerial wind speed looks like a very reasonable result. The red line is a running mean of 10 observations (which were six seco..." | Read more » | over 7 years ago | |||
| cfastie | "When the rich text editor went live (a year or two ago?) I gave it a try. In the middle of writing my first Rich research note I couldn't figure so..." | Read more » | over 7 years ago | |||
| cfastie | "I think the answers to your latest questions depend a lot on the sfm software you will be using. Some online services don't use GPS data, so it won..." | Read more » | over 7 years ago | |||
| cfastie | "I think what you are proposing is quite realistic. Depending on the scale of your study areas (e.g., How tall are the cliffs?), this could be accom..." | Read more » | over 7 years ago |