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. 2016 Jan 19;10(7):1613–1624. doi: 10.1038/ismej.2015.239

Figure 1.

Figure 1

Temperature and chlorine salt conditions in the McMurdo Dry Valleys. The combination of low temperature (a), low salt influx (b) and low salt concentrations (c) in the stable upland zone (SUZ) of the McMurdo Dry valleys do not permit for liquid water to exist in soils in University Valley (grey band). These conditions are met in the coastal thaw zone (CTZ) and intermediate mixed zone (IMZ). Temperature data compiled from the LTER climate database (http://www.mcmlter.org). Chlorine flux and chlorine concentration data are obtained from Witherow et al. (2006).