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Remote Sensing of Subsurface Soil Moisture

Summary

Researchers at Purdue University have developed an instrument/software that allows remote sensing of surface soil moisture from an airborne instrument using reflective electromagnetic radiation. This can provide the most efficient method to collect measurements and survey an entire field with high spatial density in a short period of time. It makes use of lower-frequency signals which are required to penetrate the soil. Resolution is determined only by the frequency of the signal, under the assumption of a near-specular reflection, not the antenna size. These features will allow use of this instrument on small airborne platforms, such as UAVs, and having airborne measurements provides much higher resolution and more targeted measurements than satellites. Hence, this technology would provide a modern approach to agriculture and improving irrigation efficiency.

Technology Benefits

Remote sensing of moisture Surveys a large field area Allows airborne measurements

Technology Application

Precision agriculture industry UAV industry

Detailed Technology Description

James GarrisonPurdue Aeronautics and Astronautics

Countries

United States

Application No.

None

Country/Region

USA

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