Fig. 2From: Erratum to: The spatial density gradient of galactic cosmic rays and its solar cycle variation observed with the Global Muon Detector NetworkHistograms of the NS anisotropy. Each panel displays the histograms of \(\xi _z^\mathrm{GEO}\) on hourly (a, b) and daily (c, d, e) bases derived from the Nagoya GG-component (a, c), the GMDN (b, d), and NM (Thule–McMurdo) (e) data in 2006–2013. Blue and red histograms in each panel represent distributions of \(\xi _z^\mathrm{GEO}\) in toward and away IMF sectors, respectively, while blue and red vertical dashed lines represent averages of the blue and red histograms, respectivelyBack to article page