Sentence examples for models at epoch from inspiring English sources

The teams derived their candidate from parent models (see Table 1 for the list of references) and evaluated these parent models at epoch 2010.0.

Fig. 9 Same as Fig. 3 between IGRF and V-ASM main field models at epoch 2015.0 and truncated to n=13.

Fig. 3 Difference at Earth's mean radius between V-ASM and Z-ASM models at epoch 2014.3 and for the full expansion.

Thin lines indicate magnetic equator and 50° magnetic quasi-dipole latitudes Fig. 4 Same as Fig. 3 between V-ASM and Z-ASM models at epoch 2015.0 and truncated to n=13 Fig. 5 Absolute difference of Gauss coefficients between V-ASM and Z-ASM models up to 13 at epoch 2015.0.

From the analyses above, the IGRF-12 task force concluded that the candidate models at epoch 2010.0, 2015.0 and their predictive parts for 2015.0-2020.0 have in general common structures in the spectral or/and physical domains so that most, but not all, of them may reasonably be considered as samples of the true Earth's magnetic main field.

Fig. 6 Same as Fig. 3 between V-ASM and Z-ASM secular variation models at epoch 2015.0 and truncated to n=8 Fig. 7 Absolute difference of Gauss coefficients between V-ASM and Z-ASM SV models up to degree 8 at epoch 2015.0.

a The field lines of the axisymmetric component of the initial field model at epoch 2014.3.

Dipole geomagnetic latitudes are calculated using the IGRF-11 model at epoch 2010.

We used the definitive IGRF model at epoch 2000 (Macmillan and Maus, 2005) up to SH degree 13 without time dependency as a starting model m0.

The MF model at epoch 2005.0 is made of definitive coefficients and aims at describing the large-scale internal part of the magnetic field of the Earth as accurately as possible for a given epoch within the model limitations.

On the third column from the left, the mean residual refers to the average difference between a given measurement and its prediction by the initial model centered at epoch t c =2014.3 (see text for details).