dot-CalculateMagneticField: Calculate Expected Magnetic Field from WMM2020

In wmm: World Magnetic Model

Description

Calculate the magnetic field for a given location and time using the fitted spherical harmonic model from the 2020 World Magnetic Model.

Usage

.CalculateMagneticField(lon, latGD, latGC, radius, time,
  wmmVersion = "derived")

Arguments

lon	GPS longitude
latGD	GPS latitude, geodetic
latGC	GPS latitude, geocentric
radius	Radius of curvature of prime vertical at given geodetic latitude
time	Annualized date time. E.g., 2015-02-01 = (2015 + 32/365) = 2015.088
wmmVersion	String representing WMM version to use. Must be consistent with time and one of the following: 'derived', 'WMM2005', 'WMM2010', 'WMM2015', 'WMM2015v2', 'WMM2020'. Default 'derived' value will infer the latest WMM version consistent with time.

Value

Expected magnetic field from WMM2020, m_wmm(lambda_t, phi_t, h_t, t). list

wmm documentation built on Sept. 6, 2021, 9:10 a.m.