Fig. 15From: 2D PWV monitoring of a wide and orographically complex area with a low dense GNSS networkSix-minute (blue dots) and 2-h (red dots) ZTD estimates (a). A difference of a few millimeters was noted. Six-minute (blue dots) and 2-h (red dots) ZTD rms values (b). The ZTD and rms estimates refer to November 4, 2011Back to article page