Spike

Spike 1. An overshoot line created erroneously by a scanner and its raster software.
2. An anomalous data point that protrudes above or below an interpolated surface representing the distribution of the value of an attribute over an area.

spike
An anomalous data point that protrudes above or below an interpolated surface. Referenced by: Raster scan; Neural network.
spline ...

See Also: spike
[statistics] An unusual or extreme data value in a dataset. In data analysis, outliers can potentially have a strong effect on results and so must be analyzed carefully to determine if they represent valid or erroneous data.

For tracks, Spike Removal attempts to eliminate any GPS errors that result in large spikes away from the actual location, while the Reduce Track option eliminates every other waypoint on a track.

Manufactured points (for example, the marlinspike and the base plate or turtle) can be used. The marlinspike is a stainless-steel pin that is driven into soft surfaces at an angle and a depth sufficient to support the level rod.

The tallest spike and the intervals to its left, match the large expanse of grey values in the map view-frequently occurring low customer density values.

I contacted the Coast Guard about this, and they did another analysis and confirmed DOP spikes for all-in-view users too.

Strong spikes may indicate an over-representation of the related angle(s) which happens in particular if integer maps are used.
NOTES
If the eps parameter is used, the diagram is generated as EPS file.

during this topology generation process, problems such as overshoots, undershoots and spikes are either flagged for editing by the user or corrected automatically ...

As you can see, at about 2:00 AM (2:20 to 2:40 AM, to be precise), there is a dramatic spike in PDOP. The software shows times that are good in a hatched pattern, and bad times in a clear pattern. In addition, a list of times is generated.

Stationary fronts are more numerous in the summer months. Stationary fronts are marked on weather maps with alternating red half-circles and blue spikes pointing in opposite directions, indicating no significant movement.

See also: Information, Feature, Location, Section, Object