What we don't think about too often is that airports have magnetic declination
assigned to them as well, and it's not just for the runway numbers.
The EM Problem Model and Permittivity Characteristics of the Magnetized Plasma with Arbitrary Magnetic Declination
The term variometer is generally applied to any instrument that registers magnetic variations, whether it be changes in magnetic declination
or any other component of the field, horizontal or vertical.
During this period, mostly the magnetic declination
Silicon Labs sells a compass development kit ($80), which accounts for three-dimensional tilt and magnetic declination
TABLE 1 Results from the Brassfield formation sbowing the core number as located in Figure 6, depth of the sample in meters, the magnetic declination/inclination of the high temperature component prior to rotation about the sample bedding plane, and magnetic declination
inclination after rotation about the sample bedding plane.
An obvious cue is the Earth's magnetic field, in particular the magnetic declination
, or the direction of the horizontal component of the magnetic field.
Called "magnetic declination
," this difference between true and magnetic north can be as much as 60 degrees at some locations in North America.
What's more, if the magnetic pole were on the Atlantic side of the geographic north pole, then as one crossed the Atlantic from east to west, the compass needle would begin by pointing west of north and end by pointing east of north, as Columbus found it did (see 1492, Magnetic Declination
It carries onboard atmospheric sensors and reads incline and magnetic declination
, plus it features a highly programmable ballistics calculator that communicates with the sensors.