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Climate Change Assessment for Water Resources Region 03 <br />South Atlantic -Gulf <br />` <br />Figure 2.3. Historical annual temperature trends for the South Atlantic Region, 1934 — 2005. <br />Triangles point in the direction of the trend, size reflects the magnitude of the change. Blue <br />indicates a decreasing temperature trend. Red indicates an increasing temperature trend <br />(Patterson et al., 2012). <br />Laseter et al. (2012) present a continuous historical climate data set for the Coweeta Laboratory <br />in North Carolina (northern portion of the region). This data shows significant warming since the <br />late 1970s (Figure 2.4) in terms of annual average, maximum, and minimum air temperatures. <br />They report that 1999 was the hottest year on record for their study site. Similar results are <br />presented by Dai et al. (2011) for a climate station in South Carolina (Santee Experimental <br />Forest). They quantified a statistically significant increasing trend in annual average air <br />temperature (at a rate of 0.19 °C per year) going back to 1946. <br />USACE Institute for Water Resources 10 January 9, 2015 <br />