From Space to the Soil: How NASA Used the HydraProbe to Validate Satellite Data
When you think of the technology inside a POGO, your first thought is probably golf courses or sports fields—not satellites orbiting hundreds of miles above Earth.
But the same HydraProbe sensor that powers every POGO has been used in scientific research to help validate soil moisture measurements collected by NASA’s Soil Moisture Active Passive (SMAP) mission.
It’s another example of the research-grade science behind every POGO measurement.
Measuring Soil Moisture from Space
Launched by NASA in 2015, the SMAP (Soil Moisture Active Passive) satellite was designed to measure the amount of water stored in the top layer of soil across the globe.
This information helps scientists better understand:
- Drought conditions
- Flood forecasting
- Agricultural productivity
- Weather prediction
- Climate research
SMAP can estimate soil moisture across vast areas that would be impossible to monitor using ground sensors alone.
But there’s one important question:
How do you know the satellite is measuring accurately?
What Is Ground Truthing?
The answer is a process called ground truthing.
Ground truthing is the practice of comparing measurements collected remotely—such as from satellites—with measurements taken directly on the ground.
Scientists install highly accurate soil sensors at research sites and compare those readings with what the satellite reports overhead.
If the numbers match, researchers gain confidence that the satellite is accurately measuring soil moisture across much larger regions.
Ground truthing is essential because even the most advanced satellites still rely on trusted field measurements for validation.
Where the HydraProbe Comes In
The HydraProbe has been used as one of the research-grade sensors for this validation work.
Its reputation for accuracy, consistency, and repeatability has made it a trusted tool in scientific research for decades.
Developed through collaboration between:
- USDA
- Dartmouth College
- U.S. Department of Defense
- Stevens Water Monitoring Systems
…the HydraProbe was engineered to provide dependable soil measurements across a wide variety of soil conditions.
Its patented, calibration-free design delivers consistent measurements without requiring soil-specific calibration, making it particularly valuable for long-term scientific studies.
The Same Sensor Inside Every POGO
One of the things that makes POGO unique is that it doesn’t use a simplified version of the HydraProbe.
Every POGO is powered by the same research-grade sensor trusted in scientific applications around the world.
Whether you’re using a:
- POGO Pro+
- POGO mini
- POGO lite
…you’re collecting data with technology that has supported environmental research, agriculture, hydrology, and satellite validation.
Why Research-Grade Accuracy Matters for Turf
While most turf managers aren’t validating satellite missions, they do face a similar challenge: making important decisions based on reliable data.
Daily irrigation schedules, turf stress management, fertilizer applications, and overall course conditions all depend on accurate measurements.
Because the HydraProbe is designed to provide consistent, repeatable readings, you can confidently compare measurements:
- From one day to the next
- Across different greens or fields
- Throughout changing seasons
- Between different soil conditions
Reliable data leads to better decisions, and better decisions lead to healthier turf.
Science You Can Trust
The HydraProbe’s role in helping validate NASA’s SMAP mission highlights the level of confidence researchers place in the technology.
From supporting global environmental research to helping golf course superintendents and sports turf managers make informed decisions every day, the HydraProbe delivers the same commitment to accuracy wherever it’s used.
It’s one more reason why every POGO starts with research-grade science and ends with practical insights for better turf management.
Learn more about POGO and TurfPro or request a demo today:
https://pogoturfpro.com/consultation/