(b) Dune-width extension - one profile. 



(c) 335-meter bitter panicum dune - 12 profiles, 27 meters 

 apart. 



(d) 366-meter bitter panicum dune - 12 profiles, 30 

 meters apart. 



b. Beach Profiles . Cross-sectional profile surveys were made in each of 

 the experimental areas from the mean sea level (MSL) landward to the east base 

 line. Beach profile elevations were read at 6-meter intervals. Profiles were 

 made in the following locations: 



(1) Unplanted control area - two profiles 91 meters apart. 



(2) Planted dune areas. 



(a) 366-meter sea oats dune - two profiles 122 meters 

 apart. 



(b) Dune-width extension dune - one profile. 



(c) 335-meter bitter panicum dune - two profiles 110 

 meters apart. 



(d) 366-meter bitter panicum dune - two profiles 91 

 meters apart. 



c. Longitudinal Profiles . In 1975-76 two longitudinal surveys were made 

 along the top of the dune and parallel with the beach for the 366-meter sea 

 oats, 335-meter bitter panicum, and 366-meter bitter panicum dunes. One 

 profile line was placed to coincide with the seaward crest of the foredunes. 

 The other was 9 to 15 meters landward of the first profile line. In 1981 the 

 second profile was omitted. Also, in 1981, a longitudinal profile was 

 surveyed for the first time on the newly shaping dune in the unplanted natural 

 area. For the dune-width extension dune, longitudinal profiles were surveyed 

 for both the seaward 15-meter width and the landward 15-meter width. 

 Elevations were recorded with each abrupt change in topography. Distances 

 were measured by tape to the nearest 0.3 meter. 



2. Elevational Surveys of Naturally Formed Dunes . 



Four cross-sectional profile surveys of existing naturally formed dunes 

 were resurveyed in March 1981, These were: 



(a) One cross section about 91 meters north of the Ranger 

 Station access road. This dune was first surveyed 



in 1974. 



(b) Three cross sections designated as (1) Pedtraf 18 

 meters south; (2) Pedtraf 2.2 kilometers south; and 

 (3) Pedtraf 2.6 kilometers south. 



17 



