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Earth, Planets and Space
Fig. 6 | Earth, Planets and Space

Fig. 6

From: Characteristics of the atmospheric electric field and correlation with CO2 at a rural site in southern Balkans

Fig. 6

Mean diurnal variation of Xanthi fair weather (FW)–potential gradient (PG) for June 2011 to May 2012 and the standard Carnegie curve. Each curve is presented as a percentage of its mean. Data of the standard Carnegie curve (cruises IV, V, and VI) were acquired from Table II of Harrison (2004c). Upward and downward arrows denote mean sunrise and sunset time, respectively

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