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Since 2011, Public Lab community  members around the world  have been building and using modified consumer cameras to take multispectral photographs, enabling thousands of people around the world to explore the world around them using vegetation analysis tools such as  #NDVI . As illustrated above, comparing infrared and visible light can offer clues to plant health, and DIY cameras like Public Lab's can make this kind of analysis possible on a very small budget. (this post was cross-posted on the Public Lab blog ) You can see just a few of these on ...

I've been working with a fantastic group from New Hampshire to provide professional development for educators for years. This year, we've spent a considerable amount of time on the pedosphere, from wetland soils to forest and grassland soils. We've talked about why trees go where they do and all the critters, both macro and micro, that spend time in soil. I've listed some of my favorite resources below but please add your own and let's grow the list: NRCS posters, guides, lesson plans and games Training materials from NRCS Traveling Soil Tent: ...

As you may know, the NASA Ice, Cloud, and land Elevation Satellite-2 (ICESat-2) will launch on September 15, 2018 from the Vandenberg Air Force Base in California, USA. The ICESat-2 satellite will use an on-board laser altimeter system to measure the height of Earth. Measurements of ice sheets, sea ice, bodies of water, mountains are all part of what ICESat-2 will measure. For our collaboration with The GLOBE Program, we want to focus on one exciting variable that the ICESat-2 satellite will measure, TREE HEIGHT! GLOBE has several ways to measure tree height. You can find them ...

The South Dakota Discovery Center is issuing a call for water transparency data from lakes, streams, rivers, ponds in South Dakota using a turbidity (or transparency) tube,  often referred to as a t-tube since both transparency and turbidity start with the letter t.   The t-tube is a simple instrument. It is a tall, transparent tube of at least 120 centimeters that is marked off in centimeters on the side. On the bottom is a quadrant pattern of alternating black and white sections. You can measure the clarity of the water by measuring the depth of the water in the...

The GLOBE Observer app (available for iPhones and Android devices) is a new, step-by-step way to submit cloud observations to NASA. Use your GLOBE sign-in information to sync your observations with your GLOBE data entry.  Here are some simple tips and tricks on how to better identify clouds while using the app. Your latitude, longitude, and time of day with be filled in automatically by the app!   1. What does your sky look like? Is your sky completely clear with no contrails? Are there clouds or is the sky obscured that it makes it difficult to make any...