(Yield) Maps - StellarSupport - John Deere

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Glossary
Insertion Point. A vertical blinking bar on the screen that shows the location where the next text or graphic will be inserted.
Instantaneous Field of View (IFOV). A measure of the spatial resolution of a scanning-type sensor. The IFOV is the area
on the ground “seen” by a sensor at any instant.
Instantaneous Yield Monitor. A device that continuously measures crop yields while harvesting.
Integrated Technology. The ability for a computer program and all of its component systems to work together seamlessly
with little effort by the user.
Interpolation. A procedure for predicting the unknown values between neighboring known data values.
Invalid Entries. Invalid Entries are created when the user selects an Unknown pick in the GreenStar Display. They will
appear on the Edit Data Files screen in red, and JDFarm Office will not let you unload the PC Card until you correct them.
Inverse Distance Weighting. An interpolation method similar to local averaging except that the samples closer to the
desired location have more influence on the estimation than faraway samples.
Ionosphere. A blanket of electrically charged particles 50 to 250 miles above the Earth.
K
Kriging. An interpolation technique for obtaining statistically unbiased estimates of field characteristics, such as surface
elevations, nutrient levels, or crop yields, from a set of neighboring points.
L
L-Band. The segment of the radio spectrum ranging in frequency from 1,000 to 2,000 MHz.
Lag. The horizontal distance between two geographic data points. Used to create a semi-variogram.
LANDSAT (LAND SATellite). The name given to a series of U.S. scientific satellites used to study the Earth’s surface using
remote sensing techniques.
Latitude/Longitude. A coordinate system that identifies a position on Earth. Latitude is the north-to-south position.
Longitude is the east-to-west position. Locations are described in units of degrees, minutes, and seconds.
Legally Registered Area. The number of acres in a farm as recorded on the government land registration documents.
Load Cell. A device that converts a force or weight into an electrical signal.
Local Average. An interpolation method in which the unknown value is estimated by a simple average of a selected number
of points near the desired location.
Local Coordinate System. A coordinate system in which the coordinates are referenced to a known location in the
immediate area. Two local coordinate systems will not line up on the same map.
M
Macronutrients. Elements or nutrients needed by plants in large quantities.
Map-Based Variable-Rate Application System. A system that adjusts product application rate based on information
contained in an electronic field map.
Map Layer. A single data type displayed in map form as an overlay of the base map. Common map layers are yield, soil
type, input application rates, etc.
Map Projection. A portrayal of geographic features from the curved surface of the Earth onto a flat plane.
Mass Flow Sensor. The sensor that gathers data as grain enters the grain tank to record the amount of grain weight
harvested.
Menu Bar. The row of menu choices near the top of a screen.
Merge. To take two or more data files and combine them into a single map or database.
Micronutrients. Trace elements or minor nutrients - materials needed by plants in very small quantities.
Minimum Shift Keying (MSK). A digital coding method used for transmitting differential correction data from the U.S. Coast
Guard for use with DGPS.
Moisture Sensor. The sensor that determines what percentage of the weight of the harvested grain is due to the water
content of the grain.
Multispectral. Capable of detecting electromagnetic radiation from multiple spectral bands simultaneously.
Multispectral Linear Array (MLA). A sensor that uses a radiometer to collect data from 16 bands within the visible and NIR