Elizabeth Lomani MarTina Corporation. Airport Background 1. Majuro, Marshall Islands 2. Elevation: 2...
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Transcript of Elizabeth Lomani MarTina Corporation. Airport Background 1. Majuro, Marshall Islands 2. Elevation: 2...
![Page 1: Elizabeth Lomani MarTina Corporation. Airport Background 1. Majuro, Marshall Islands 2. Elevation: 2 meters 3. Max Runway: 2407 x 46 meters 4. Accommodate.](https://reader036.fdocuments.net/reader036/viewer/2022081512/551a29a855034619378b568f/html5/thumbnails/1.jpg)
High Resolution DEM Creation for Majuro Airport
Elizabeth Lomani
MarTina Corporation
![Page 2: Elizabeth Lomani MarTina Corporation. Airport Background 1. Majuro, Marshall Islands 2. Elevation: 2 meters 3. Max Runway: 2407 x 46 meters 4. Accommodate.](https://reader036.fdocuments.net/reader036/viewer/2022081512/551a29a855034619378b568f/html5/thumbnails/2.jpg)
Airport Background1. Majuro, Marshall Islands2. Elevation: 2 meters3. Max Runway: 2407 x 46 meters4. Accommodate 25 flights per week
International flights Cargo flights Domestic flights
5. Important infrastructures1. Airport2. Water catchment for the island
![Page 3: Elizabeth Lomani MarTina Corporation. Airport Background 1. Majuro, Marshall Islands 2. Elevation: 2 meters 3. Max Runway: 2407 x 46 meters 4. Accommodate.](https://reader036.fdocuments.net/reader036/viewer/2022081512/551a29a855034619378b568f/html5/thumbnails/3.jpg)
Important infrastructures
ReservoirPipelines
Airport
![Page 4: Elizabeth Lomani MarTina Corporation. Airport Background 1. Majuro, Marshall Islands 2. Elevation: 2 meters 3. Max Runway: 2407 x 46 meters 4. Accommodate.](https://reader036.fdocuments.net/reader036/viewer/2022081512/551a29a855034619378b568f/html5/thumbnails/4.jpg)
Steps to Creating the Airport DEMResults from topographic surveyConvert DXF to GIS formatDigitised spot heightsExport to Access for data integrity checksExport to ErdasDTM creation in Erdas
![Page 5: Elizabeth Lomani MarTina Corporation. Airport Background 1. Majuro, Marshall Islands 2. Elevation: 2 meters 3. Max Runway: 2407 x 46 meters 4. Accommodate.](https://reader036.fdocuments.net/reader036/viewer/2022081512/551a29a855034619378b568f/html5/thumbnails/5.jpg)
Convert DXF to GIS format• Too many
files to go through.• Opening
files proved to be tedious and time consuming
![Page 6: Elizabeth Lomani MarTina Corporation. Airport Background 1. Majuro, Marshall Islands 2. Elevation: 2 meters 3. Max Runway: 2407 x 46 meters 4. Accommodate.](https://reader036.fdocuments.net/reader036/viewer/2022081512/551a29a855034619378b568f/html5/thumbnails/6.jpg)
Digitising spot heights
Contour lines without elevation values
Extracting elevation values from original file
More than one feature on one file
1 2
3
![Page 7: Elizabeth Lomani MarTina Corporation. Airport Background 1. Majuro, Marshall Islands 2. Elevation: 2 meters 3. Max Runway: 2407 x 46 meters 4. Accommodate.](https://reader036.fdocuments.net/reader036/viewer/2022081512/551a29a855034619378b568f/html5/thumbnails/7.jpg)
Result of Digitising
5 people digitised the spot heights
14,000 points digitised
10,00 points - useful
![Page 8: Elizabeth Lomani MarTina Corporation. Airport Background 1. Majuro, Marshall Islands 2. Elevation: 2 meters 3. Max Runway: 2407 x 46 meters 4. Accommodate.](https://reader036.fdocuments.net/reader036/viewer/2022081512/551a29a855034619378b568f/html5/thumbnails/8.jpg)
Export to Access for data integrity checks
Null ValuesUnrealistic heightsConversion from
feet to meters
![Page 9: Elizabeth Lomani MarTina Corporation. Airport Background 1. Majuro, Marshall Islands 2. Elevation: 2 meters 3. Max Runway: 2407 x 46 meters 4. Accommodate.](https://reader036.fdocuments.net/reader036/viewer/2022081512/551a29a855034619378b568f/html5/thumbnails/9.jpg)
DTM Creation
Surface model was created
Holes in the middle of the airport Negative valuesTypos
![Page 10: Elizabeth Lomani MarTina Corporation. Airport Background 1. Majuro, Marshall Islands 2. Elevation: 2 meters 3. Max Runway: 2407 x 46 meters 4. Accommodate.](https://reader036.fdocuments.net/reader036/viewer/2022081512/551a29a855034619378b568f/html5/thumbnails/10.jpg)
2030 Sea level rise inundation model
16cm sea level riseSpatial Analysis
Area loss20% Infrastructure
affected
![Page 11: Elizabeth Lomani MarTina Corporation. Airport Background 1. Majuro, Marshall Islands 2. Elevation: 2 meters 3. Max Runway: 2407 x 46 meters 4. Accommodate.](https://reader036.fdocuments.net/reader036/viewer/2022081512/551a29a855034619378b568f/html5/thumbnails/11.jpg)
2055 Sea level rise inundation model
30cm sea level rise
Spatial AnalysisArea loss50%
Infrastructures affected
![Page 12: Elizabeth Lomani MarTina Corporation. Airport Background 1. Majuro, Marshall Islands 2. Elevation: 2 meters 3. Max Runway: 2407 x 46 meters 4. Accommodate.](https://reader036.fdocuments.net/reader036/viewer/2022081512/551a29a855034619378b568f/html5/thumbnails/12.jpg)
2090 inundation model
60cm sea level rise
Spatial AnalysisArea lossMore than 90%
Infrastructures affected
![Page 13: Elizabeth Lomani MarTina Corporation. Airport Background 1. Majuro, Marshall Islands 2. Elevation: 2 meters 3. Max Runway: 2407 x 46 meters 4. Accommodate.](https://reader036.fdocuments.net/reader036/viewer/2022081512/551a29a855034619378b568f/html5/thumbnails/13.jpg)
Thanks