Fig. 9
From: Ground-based VLF wave intensity variations investigated by the principal component analysis
Average dependences of the first three principal component coefficients on a–c month, d–f UT
Fig. 9 | Earth, Planets and Space
From: Ground-based VLF wave intensity variations investigated by the principal component analysis
Average dependences of the first three principal component coefficients on a–c month, d–f UT