PowerPoint Presentation
Quantifying landscape change in an arctic coastal lowland using
repeat airborne LiDARPresented by Rafael Orozcoby Jones et al.,
2013TEAMProject 5 Mapping Badlands TopographyStudy Area
Beaufort Sea CoastLiDAR data covering 100 km2 (2006 &
2010)2-4 km inland coverage1st vertical dataset (coastal
permafrost)2TEAMProject 5 Mapping Badlands TopographyData
ControlGravel pads act as thermal buffers for underlying
permafrostElevation change of 0.1m
Badami Oil Field
3TEAMProject 5 Mapping Badlands TopographyCoastal ErosionReduced
sea ice coverEarlier seasonal thawLater winter freeze-up
Measuring Change
0.55m vertical resolution>10m2 horizontal (5 pixels)
Causes
4TEAMProject 5 Mapping Badlands TopographyErosional Features
Total change of 0.3% area 1718 objects identified13 common
categoriesCoastal bluff erosion and beach/spit erosion account for
83% of observed vertical change.
Thermoerosional gulliesThermokarst pondsSpit and beach
depositsCut bank development
5TEAMProject 5 Mapping Badlands TopographyHistorical Temp &
Thawing Degree Days
Overall increases in: Mean annual air temp.Thawing degree days
(TDD)Mean annual ground temp.
6TEAMProject 5 Mapping Badlands TopographyReferences
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