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International Geomagnetic Reference Field

International Geomagnetic Reference Field—the eighth generation

International Geomagnetic Reference Field—the eighth generation

... the International Geomagnetic Reference Field (IGRF) was adopted in 1999 by the International Association of Geomagnetism and Aeronomy (IAGA) Division V, Working Group ...

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A 2015 International Geomagnetic Reference Field (IGRF) candidate model based on Swarm’s experimental absolute magnetometer vector mode data

A 2015 International Geomagnetic Reference Field (IGRF) candidate model based on Swarm’s experimental absolute magnetometer vector mode data

... 2015.0 International Geomagnetic Reference Field ...the geomagnetic field of internal origin up to degree and order 40 in a spherical harmonic representation and including a ...

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International Geomagnetic Reference Field—the tenth generation

International Geomagnetic Reference Field—the tenth generation

... The International Geomagnetic Reference Field (IGRF) 10th Generation was adopted in 2004 by the Inter- national Association of Geomagnetism and Aeronomy (IAGA) Working Group ...

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NOAA/NGDC candidate models for the 11th generation International Geomagnetic Reference Field and the concurrent release of the 6th generation Pomme magnetic model

NOAA/NGDC candidate models for the 11th generation International Geomagnetic Reference Field and the concurrent release of the 6th generation Pomme magnetic model

... The International Geomagnetic Reference Field (IGRF) is updated every five years based on candidate model submissions by research institutions ...

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NGDC/GFZ candidate models for the 10th generation International Geomagnetic Reference Field

NGDC/GFZ candidate models for the 10th generation International Geomagnetic Reference Field

... The geomagnetic field at the Earth’s surface is strongly dominated by the long wavelength main field from the Earth’s ...the geomagnetic field is well approx- imated by this main field ...the ...

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NOAA/NGDC candidate models for the 12th generation International Geomagnetic Reference Field

NOAA/NGDC candidate models for the 12th generation International Geomagnetic Reference Field

... netic field, during the modeling process, it is necessary to carefully account for and parameterize the other sources so their effects can be separated from the final IGRF ...ring-current field flowing in ...

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International Geomagnetic Reference Field: the 12th generation

International Geomagnetic Reference Field: the 12th generation

... magnetic field generated in the Earth’s outer ...a reference model in applications requiring a fixed reference ...Definitive Geomagnetic Reference Field ...

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Evaluation of candidate geomagnetic field models for IGRF 11

Evaluation of candidate geomagnetic field models for IGRF 11

... the International Geomagnetic Reference Field (IGRF) was agreed in December 2009 by a task force appointed by the International Association of Geomagnetism and Aeronomy (IAGA) Division ...

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Bathymetric and magnetic traverses over the southwest margin of the Rockall Plateau  RRS "Discovery" Cruise 60, 26 February   22 March 1974

Bathymetric and magnetic traverses over the southwest margin of the Rockall Plateau RRS "Discovery" Cruise 60, 26 February 22 March 1974

... The data a r e then processed in the data reduction program to reduce total magnetic field values to anomaly values by removal of the International Geomagnetic Reference Field Mead 1970 [r] ...

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Modelling of spatial temporal changes of the geomagnetic field in Japan

Modelling of spatial temporal changes of the geomagnetic field in Japan

... accurate geomagnetic field values for Japan and are widely used as a reference for the study of local geomagnetic anomalies in this ...the International Geomagnetic Reference ...

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Australian magnetic field effects during geomagnetic storms

Australian magnetic field effects during geomagnetic storms

... of field disturbances that we now identify as global magnetic ...storm field characteristics and related activity in- dices ...continental field behavior for an aeromag- netic survey ...to ...

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Introducing localized constraints in global geomagnetic field modelling

Introducing localized constraints in global geomagnetic field modelling

... the geomagnetic field from satellite data is to weight the data to take into account the higher data density close to the poles and the increase in noise level at high ...

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GEOMAGNETIC ORIENTATION OF LOGGERHEAD SEA TURTLES: EVIDENCE FOR AN INCLINATION COMPASS

GEOMAGNETIC ORIENTATION OF LOGGERHEAD SEA TURTLES: EVIDENCE FOR AN INCLINATION COMPASS

... on field line inclination rather than on field polarity, evidence suggests this is not the case for all ...magnetic field (Quinn, 1980). Inverting the field vertical component does not cause a ...

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Evaluation of candidate geomagnetic field models for IGRF 12

Evaluation of candidate geomagnetic field models for IGRF 12

... magnetic field, the institutions archiving and disseminating the ground magnetic field data, and the national and the various space agencies who distribute well-documented magnetic satellite data from the ...

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Inner Core Translation and the Hemispheric Balance of the Geomagnetic Field

Inner Core Translation and the Hemispheric Balance of the Geomagnetic Field

... Strong hemispheric heterogeneity at the ICB is found to produce 16 a hemispheric signature in both the morphology of the magnetic field and 17 its secular variation; in particular, we no[r] ...

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Positive geotactic behaviors induced by geomagnetic field in Drosophila

Positive geotactic behaviors induced by geomagnetic field in Drosophila

... It is generally accepted that microgravity in a space craft or simulated microgravity on the ground provides suitable experimental conditions to investigate whether gravity provokes geotaxis of living organisms [9–11]. ...

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Equatorial electrojet as a diagnostic tool of geomagnetic field models

Equatorial electrojet as a diagnostic tool of geomagnetic field models

... The equatorial electrojet (EEJ) is a unique feature of the Earth’s external current systems because it must flow along the dip equator. This provides us with a tool to determine the nature of the variations imposed by ...

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Dynamic responses of the Earth’s outer core to assimilation of observed geomagnetic secular variation

Dynamic responses of the Earth’s outer core to assimilation of observed geomagnetic secular variation

... the field models that are not included in the observation error ...generated field (an external field component) contributes dominantly to the Gauss coefficients of degrees l = 1, 3, 5 and varies on ...

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Measurement experiences with FluxSet digital D/I station

Measurement experiences with FluxSet digital D/I station

... Figure 4. (a–b) The mean-removed declination and inclination values in nT unit. The circle and square marks refer to observations 1 and 2, respectively. The red colour corresponds to the absolute measurements with the ...

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Magnetic body alignment in migratory songbirds: a computer vision approach

Magnetic body alignment in migratory songbirds: a computer vision approach

... Many animals are known to have a magnetic sense and to use the geomagnetic field for orientation and navigation (Wiltschko and Wiltschko, 1995). In recent years, the phenomenon of magnetic body alignment of ...

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