For this laboratory activity, you will develop a calibration relationship using data from a commercially-available soil water content measurement system and direct soil water content measurements determined from weighing and drying. We will collect data from two soils, each at three moisture conditions (3 reps of each). Data will be provided after lab.
Prepare a brief report (< 2 pages) describing the measurements we collected. Include a regression comparing sensor response to the direct measurements of water content, and develop a calibration equation with an estimate of sensor error. Consider the variation in sensor response over the range of moisture conditions (linearity and accuracy), the consistency between measurements at a given condition (precision), and any differences in sensor response between the two soils in your explanation of the data. Describe any pertinent limitations to the calibration relationship you have developed (e.g., is it universal, specific to a particular soil, or limited to a particular range).
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