Record Search Query: [Sensor_Name: Short_Name='MAGNETOMETERS']
IGRF2000: calculates the Earth's magnetic field components
Entry ID: IGRF2000
Abstract: IGRF-2000 model coefficients used- Variety of uses in teaching and research.
- Calculates the magnetic field components with height, latitude, longitude or
date (years 1940 to 2005).
- Also calculates profiles of magnetic field values with changing height,
latitude, longitude or date (years 1940 to 2005).
- Works under windows (NT, 95,98, 2000)- self installing software, with
extensive help. Written by Mark W Hounslow
ISO Topic Category
Use Constraints The user of magnetic-field models and charts must be aware of their
limitations. Since the magnetic field is extremely complicated, in both space
and time, magnetic-field models are, by practical necessity, something of an
approximation of the actual magnetic field. For example, global models of the
field, such as the IGRF, do not account for very ... local magnetization. Indeed,
there is no way that they could, since many geological formations, and for that
matter, many rocks, are magnetized, if only partially. Moreover, the models do
not fully account for magnetic-field ingredients generated by ionospheric and
magnetospheric electric currents, since these can create essentially
unpredictable, localized and transient perturbations to the main field,
particularly at high latitudes. Despite these qualifiers, because
magnetic-field models and charts are of such enormous practical utility, they
are provided here as a service to the public.
Barraclough, D. R., 1974. Spherical Harmonic Analysis of the Geomagnetic Field
for Eight Epochs between 1600 and 1910, Geophys. J. R. Astr. Soc. , 36 ,
IAGA Division V, Working Group 8, [Including Program member Quinn, J. M.],
2000. International Geomagnetic Reference Field, 2000, Phys. Earth. Planet.
Inter. , 120 , 39-42, Pure Appl. Geophys. , 157 , 1797-1802, Geophys. J. Int. ,
141 , 259-262.
Macmillan, S. & Quinn, J. M. , 2000. The 2000 revision of the Joint UK/US
Geomagnetic Field Models and the IGRF candidate model , Earth Planets Space ,
52 , 1149-1162.
Macmillan, S. & Quinn, J. M., 2000. The derivation of the World Magnetic Model
2000 , Brit. Geol. Surv. Tech. Rept. WM/00/17R.
Creation and Review Dates