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<br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br /> <br />6.0 Recommendations <br /> <br />To produce more accurate floodplain delineations some changes should be made to the <br />procedure. The GPS method for surveying was troublesome at times when the overhead canopy <br />obstructed the line of path from the satellites to the receivers. Therefore, the use of the GPS <br />surveying for river reaches need to be in moderately clear areas with little canopy cover for the <br />greatest accuracy. In addition, there are certain hours during the day, between 1 pm and 4 pm, <br />during which the GPS equipment took longer to lock in a location. Also, when surveying the <br />river reach more cross-sections should be taken when the river reach has high sinuous stretches. <br />This will allow HEC-RAS to create water surface profiles that match the sinuosity of the river <br />and the ArcView map will have higher accuracy. The cross-sections should be extended for <br />surveying purposes so the exact flood plain will be delineated. Another recommendation would <br />be to work with James Doan, the developer of the HEC-GeoHMS ArcView extension to <br />determine the source of the Segmentation Violation described above. This would allow for a <br />better completion of a rainfalVrunoff model. <br /> <br />31 <br />