Fig. 9From: Data assimilation experiment of precipitable water vapor observed by a hyper-dense GNSS receiver network using a nested NHM-LETKF systemDistributions of GNSS stations around Uji used in the thinning experiments with mean inter-station distances of 8.0, 4.2, 3.5, 2.9, and 1.7 km. Blue- and red-colored triangles indicate stations of the Uji network and GEONET, respectivelyBack to article page