A Contextual Survey of the Southern Walls

1. A Contextual Survey of the Southern Walls Shelby Eagleburger GRAM-NSF-REU, California State University-Long Beach Ka’a’awa Valley, Kualoa Ranch, Oahu, Hawai’i, 2013

2. Project Focus Are there commonalities in the context of the walls that run down the southern slope that may help in the production of a predictive model to locate similar features in other valleys?

3. Methodology & Obstacles • Documentation • Pictures • Slope • X,Y,Z • Context • Survey • Systematic • Identification • Distinctive Attributes • Linear in shape • Composed of unworked rock • Exist in an agglomerated structure • Problems • Vegetation • Hindered travel and GPS signal • Equipment • Identification • Lack of Experience • Time Constraints

4. WRONG WAY TO ORGANIZE DATA!!!

5. Vegetation Cover Problem

13. 3D Visualization

14. The walls are consistently built in areas with slopes ranging from approximately 15 to 24 degrees and 100 to 200 meters in elevation

15. The clinometer readings were consistent with the slope analysis There were some outliers however the reading were taken on the walls themselves and not the ground

16. Average Nearest Neighbor Result • Observed Mean Distance: 35.600709 Meters • Expected Mean Distance: 16.953117 Meters • Nearest Neighbor Ratio: 2.099951 • Z-Score: 5.15449

17. Linear Directional Mean • Mean Length: 56.276551 m • Mean Height: 1.24 m • Mean Width: 0.76 m • Mean Compass Angle (clockwise from due North): 90.4108 • Circular Variance (how much orientations deviate from the mean): 0.042463

19. Conclusions • Further Research • Looking into other analogous valleys that may share some of the same traits to see if the same type of features appear. • Common Traits • Construction • Height: 0.65 to 1.45 meters • Width: 0.4 to 1.12 meters • Building Area • Slopes: 15 to 24 degrees • Elevation: 100 to 200 meters