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Elizabeth Lomani MarTina Corporation. Airport Background 1. Majuro, Marshall Islands 2. Elevation: 2 meters 3. Max Runway: 2407 x 46 meters 4. Accommodate.

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Presentation on theme: "Elizabeth Lomani MarTina Corporation. Airport Background 1. Majuro, Marshall Islands 2. Elevation: 2 meters 3. Max Runway: 2407 x 46 meters 4. Accommodate."— Presentation transcript:

1 Elizabeth Lomani MarTina Corporation

2 Airport Background 1. Majuro, Marshall Islands 2. Elevation: 2 meters 3. Max Runway: 2407 x 46 meters 4. Accommodate 25 flights per week International flights Cargo flights Domestic flights 5. Important infrastructures 1. Airport 2. Water catchment for the island

3 Important infrastructures Reservoir Pipelines Airport

4 Steps to Creating the Airport DEM Results from topographic survey Convert DXF to GIS format Digitised spot heights Export to Access for data integrity checks Export to Erdas DTM creation in Erdas

5 Convert DXF to GIS format Too many files to go through. Opening files proved to be tedious and time consuming

6 Digitising spot heights Contour lines without elevation values Extracting elevation values from original file More than one feature on one file 1 2 3

7 Result of Digitising 5 people digitised the spot heights 14,000 points digitised 10,00 points - useful

8 Export to Access for data integrity checks Null Values Unrealistic heights Conversion from feet to meters

9 DTM Creation Surface model was created Holes in the middle of the airport Negative values Typos

10 2030 Sea level rise inundation model 16cm sea level rise Spatial Analysis Area loss 20% Infrastructure affected

11 2055 Sea level rise inundation model 30cm sea level rise Spatial Analysis Area loss 50% Infrastructures affected

12 2090 inundation model 60cm sea level rise Spatial Analysis Area loss More than 90% Infrastructures affected

13 Thanks


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