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Earth, Planets and Space
Fig. 1 | Earth, Planets and Space

Fig. 1

From: 3D tomography of midlatitude sporadic-E in Japan from GNSS-TEC data

Fig. 1

Maps showing the distribution of GNSS stations (red dots) and the blocks above the Kanto (a) and the Kyushu (b) Districts, Japan. Blocks extend upwards covering altitudes from 60 to 270 km above the surface. The distribution of LoS penetrating blocks at the altitude of 90–120 km of the satellite–station pairs used for 3D tomography for Case 1 above Kanto (c) and Case 4 above Kyushu (d)

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