governor san andrés, pedro gallardo forbes arielle parnes-katz,...
TRANSCRIPT
Best Emergency Shelter Locations on San Andrés Island in the Event
of a Catastrophic StormArielle Parnes-Katz, Clayton Sodergren, Chippie Kislik Client: Governor
Pedro Gallardo Forbes San Andrés,Colombia
The 90-meter SRTM DEM, which is the best available elevation data for the island, did not have accurate values for the shoreline, and often did not have ‘0’ values. To correct this, we had to do extra processing (Fig. 4). Another limitation we encountered was the general lack of data available for the island, which restricted our opportunities and constraints layers. The parameters we used for our suitability analysis excluded some areas of the island, making the �inal suitability map appear to have areas without data (Fig. 3).
₊ ₌
Landmarks
Freshwater Lakes
Wells & Native Lodges
Sea Level
Roads
5-Meter Inundation on San Andrés
Figure 1: Total Constraints Figure 2: Total Opportunities Figure 3: Final Suitability
Figure 4: Raster Processing
Figure 5: Constraint Processing
Figure 6: Opportunity Processing
Climate change is resulting in more devastating tropical storms. In the event of a catastrophic storm hitting the island of San Andrés, the local authorities should be informed of the safest areas to locate an emergency shelter.
Problem
Constraints
Methods
Sources
Limitations
1. Raster Surface Modeling2. Site Suitability Analysis
!"#"$%#& '()*+%& '+",%&-&.%$(,)#/(0&
1"#/2%&3*(4%+#/(0&
50",6$/$&3*(4%+#/(0&
DEM from SRTM CGIAR Consortium for Spatial Info
90 meter GSC WGS 1984 UTM Zone 17N
Freshwater Lakes Open Street Map 1:10,000 GSC WGS 1984 UTM Zone 17N
Landmarks (large facilities)
Open Street Map 1:10,000 GSC WGS 1984
UTM Zone 17N
Roads CORALINA 1:10,000 GSC WGS 1984
UTM Zone 17N
Native Lodges CORALINA 1:10,000 GSC WGS 1984
UTM Zone 17N
Wells CORALINA 1:10,000 GSC WGS 1984
UTM Zone 17N
Island Basemap CORALINA 1:10,000 GSC WGS 1984
UTM Zone 17N
Neighborhoods CORALINA 1:10,000 GSC WGS 1984
UTM Zone 17N
Over 11.5% slope5-meter Storm Surge
Over 300 meters from a neighborhoodWest & Southwest Aspects
100 m
300m
300 m
1500 m
1000 m
Opportunities
Conclusions
Proximity to roads Proximity to Native Lodge
Proximity to Multiple wells Proximity to freshwater sources
Proximity to large facility for shelterOver 15 meter elevation
We found a centrally located area of highest suitability that contains an easily accessible facility: the First Baptist Church, which is a common gathering place for the local community.