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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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