Part 1: How to Interpret Soil Moisture Data

How to interpret surprising and problematic soil moisture data and what to expect in different soil, site, and environmental situations.

Surprises that leave you stumped

Soil moisture data analysis is often straightforward, but it can leave you scratching your head with more questions than answers. There’s no substitute for a little experience when looking at surprising soil moisture behavior.

Understand what’s happening at your site

METER soil scientist, Dr. Colin Campbell has spent nearly 20 years looking at problematic and surprising soil moisture data. In this 30-minute webinar, followed by a ~15-minute Q&A, he discusses what to expect in different soil, environmental, and site situations and how to interpret that data effectively. Learn about:

Telltale sensor behavior in different soil types (coarse vs. fine, clay vs. sand)
Possible causes of smaller than expected changes in water content
Factors that may cause unexpected jumps and drops in the data
What happens to dielectric sensors when soil freezes and other odd phenomena
Surprising situations and how to interpret them
Undiagnosed problems that affect plant-available water or water movement
Why sensors in the same field or same profile don’t agree
Problems you might see in surface installations

Next steps

Questions?

Our scientists have decades of experience helping researchers and growers measure the soil-plant-atmosphere continuum.

Presenter

Dr. Colin Campbell has been a research scientist at METER for 20 years following his Ph.D. at Texas A&M University in Soil Physics. He is currently serving as Vice President of METER Environment. He is also adjunct faculty with the Dept. of Crop and Soil Sciences at Washington State University where he co-teaches Environmental Biophysics, a class he took over from his father, Gaylon, nearly 20 years ago. Dr. Campbell’s early research focused on field-scale measurements of CO₂ and water vapor flux but has shifted toward moisture and heat flow instrumentation for the soil-plant-atmosphere continuum.

Webinars

See all webinars

Soil Moisture 102: Water Content Methods–Demystified

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Dr. Colin Campbell compares measurement theory, the pros and cons of each method, and why modern sensing is about more than just the sensor.

Webinars39 min watch

Soil Moisture 202: Choosing The Right Water Potential Sensor

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In this 20-minute webinar, METER research scientist Leo Rivera discusses how to choose the right field water potential sensor for your application.

Webinars37 min watch

Soil Moisture 302: Hydraulic Conductivity—Which Instrument is Right for You?

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Leo Rivera, research scientist at METER, teaches which situations require saturated or unsaturated hydraulic conductivity and the pros and cons of common methods.

Webinars47 min watch