Glossary of Terms - P
The repeatability of multiple measurements of the same object or condition.
Refers to the map created in a GIS which assigns product application rates for variable rate applications. Prescription information is exported to a controller for application. Prescription maps are commonly used for variable rate seeding, fertilizer, lime and irrigation.
A computer generated GIS file that assigns a value to a given geographical area. Example: Nitrogen application rate.
Using sensors or instruments close to the object being measured, but not necessarily in contact with the object.
An estimate of the true distance (range) from a GPS receiver to a satellite. The estimate contains some error due to atmospheric perturbations and the offset between the receiver’s clock and the satellite clock.