A Contextual Survey of the Southern Walls Shelby Eagleburger GRAM-NSF-REU, California State...
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![Page 1: A Contextual Survey of the Southern Walls Shelby Eagleburger GRAM-NSF-REU, California State University-Long Beach Kaaawa Valley, Kualoa Ranch, Oahu, Hawaii,](https://reader035.fdocuments.net/reader035/viewer/2022081518/55165cad550346b2068b5d32/html5/thumbnails/1.jpg)
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
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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?
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Methodology & Obstacles• 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
• Documentation• Pictures• Slope• X,Y,Z• Context
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WRONG WAY TO ORGANIZE DATA!!!
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Vegetation Cover Problem
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3D Visualization
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The walls are
consistently built in
areas with slopes
ranging from
approximately 15 to
24 degrees and 100
to 200 meters in
elevation
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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
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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
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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
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Wall Aspect
North Northeast Southeast
Wall Aspect
1 North
2 Northeast
3 North
4 Northeast
5 Southeast
6 North
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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