Figure 3From: Long-term variation in the upper atmosphere as seen in the geomagnetic solar quiet daily variationLong-term variation in the solar F10.7 index and Sq amplitude. Long-term variation in the solar F10.7 index (a) and Sq amplitude obtained at Alibag (b), Apia (c), Kakioka (d), and San Juan (e) in the low-latitude region. The format of this figure is the same as that of Figure 1. The solar F10.7 index a displays the same data as that in panel a of Figure 1.Back to article page