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Earth, Planets and Space
Figure 2 | Earth, Planets and Space

Figure 2

From: The spatial density gradient of galactic cosmic rays and its solar cycle variation observed with the Global Muon Detector Network

Figure 2

Histograms of the NS anisotropy. Each panel displays the histograms of \(\xi _{z}^{\text {GEO}}\) on (a, b) hourly and (c, d, e) daily bases derived from the (a, c) Nagoya GG-component, (b, d) GMDN, and (e) NM (Thule-McMurdo) data in 2006 to 2013. Blue and red histograms in each panel represent distributions of \(\xi _{z}^{\text {GEO}}\) in toward and away IMF sectors, respectively, while blue and red vertical dashed lines represent averages of the blue and red histograms, respectively.

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