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Figure 13, continued <br /> <br />1372.5 <br />RM 162 Backwater <br />1372.0 XSECT-4 <br />1371.5 <br />1371.0 <br />0 1370.5 <br /> <br />1370.0 <br />w 1369.5 0 1995 <br />1369.0 -f-1998 <br /> <br />1368.5 <br /> 0 2001 <br />3 <br />1 <br />68.0 <br />0 10 20 30 40 <br />Distance (m) <br />99.0 <br />98.5 RM 160 Backwater <br />XSECT 6 <br />98.0 <br />E 97.5 <br />C <br />0 97.0 <br />m <br />A2 96.5 <br />w <br />96.0 0 8/27/95 ` <br />--f- 8/22/98 <br />95.5 <br />-?- 5/24/01 <br />95.0 <br />0 5 10 15 20 25 30 35 40 <br />Distance (m) <br />Comparison of Aerial Photographs: The photogrammetric analysis of channel change <br />suggests that the planimetric area of individual features within the 15-mile and 18-mile reaches <br />decreased slightly between 1993 and 2000. Among the three mapping units, the area of bars and <br />side channels changed the most, while the area of the main channel changed the least (Fig. 14a). <br />However, it is evident that much of the change detected in the analysis occurred in the 18-mile <br />32