“One of the extraordinary things about working with (METER) was the extent to which they were receptive to a challenge. I could say, we're trying to figure out how we interpret permittivity data in a pathologically dry soil. And a week later, a model would come back...the response was—we know how to do that.”
- Dr. Michael Hecht, NASA JPL
Soil Moisture 102: Water Content Methods–Demystified
Dr. Colin Campbell compares measurement theory, the pros and cons of each method, and why modern sensing is about more than just the sensor.