Skip to main content
Fig. 1 | Earth, Planets and Space

Fig. 1

From: Analysis of temporal–longitudinal–latitudinal characteristics in the global ionosphere based on tensor rank-1 decomposition

Fig. 1

The original ionospheric VTEC map for \(14:00-16:00\) UT on January 1, 2011 and its corresponding tensor rank decomposition, \(r=1\), 5, 10, 20, and 30. The labels, ‘\(-\,1\)’ and ‘\(-\,2\)’, represent the surface and contour plots, respectively. The geographic longitude ranges from \(-\,180^{\circ }\) to \(180^{\circ }\). The geographic latitude ranges from \(-\,87.5^{\circ }\) to \(87.5^{\circ }\). The units of VTEC are in 0.1 TECU

Back to article page