Figure 8From: Long-term variation in the upper atmosphere as seen in the geomagnetic solar quiet daily variationGlobal distribution of 40 residual Sq trends. Global distribution of 40 residual Sq trends that passed through a trend test as a function of geographical latitude and longitude. The value of coefficient a derived from linear regression analysis is indicated by a color scale of ±0.30 [nT/year].Back to article page