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Earth, Planets and Space
Fig. 5 | Earth, Planets and Space

Fig. 5

From: Penetration of the electric fields of the geomagnetic sudden commencement over the globe as observed with the HF Doppler sounders and magnetometers

Fig. 5

SCs recorded at middle latitudes; Memambetsu (MMB, 35.72º GML), Kakioka (KAK, 27.76º GML) and Kanoya (KNY, 22.30º GML), Japan in the afternoon sector (14 MLT), and at the geomagnetic equator; Phuket, Thailand (PKT, -1.53º GML) in the pre-noon sector (11 MLT). The H- and D-components are plotted with the solid and dotted curves, respectively. The SC is composed of the DL at middle latitudes, while the PI and MI are superposed on the DL at the equator

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