Decadal Micro-Topographic Change in Tundra Near Point Barrow Alaska

Decadal Micro-Topographic Change in Tundra Near Point Barrow, Alaska

Devan R. Berry, Craig E. Tweedie, Robert D. Hollister and Patrick J. Webber

Results: The relative range in elevation for the IBP Topographical Grid in 1973 was 1.72 m, with the maximum elevation being 1.72 m and the minimum elevation being 0 m, (Figs. 2 and 4). The relative range for 2001 was 1.44 m, with the maximum elevation being 1.19 m, and the minimum elevation being 0.25 m, (Figs. 3 and 5).

The relative range in elevation for the Micro Topographical Grid in 1973 was 37.5 cm, with the maximum elevation being 9.2 cm and the minimum elevation being 28.3 cm, (Figs. 6 and 6). The relative range for 2001 was 45 cm, with the maximum elevation being 10 cm and the minimum elevation being 35 cm, (Figs. 7 and 9).

390m
110m

Fig. 2 - Topography 1973 Fig. 3 - Topography 2001

Vertical Exaggeration X25
Fig. 4 - Topography (3D) 1973 Vertical Exaggeration X25
Fig. 5 - Topography (3D) 2001

390m
110m

Fig. 6 - Microtopography 1973 Fig. 7 - Microtopography 2001

Vertical Exaggeration X25
Fig. 8 - Microtopography (3D) 1973 Vertical Exaggeration X25
Fig. 9 - Microtopography (3D) 2001

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390m 110m
Fig. 2 - Topography 1973	Fig. 3 - Topography 2001


Vertical Exaggeration X25 Fig. 4 - Topography (3D) 1973	Vertical Exaggeration X25 Fig. 5 - Topography (3D) 2001

390m 110m
Fig. 6 - Microtopography 1973	Fig. 7 - Microtopography 2001


Vertical Exaggeration X25 Fig. 8 - Microtopography (3D) 1973	Vertical Exaggeration X25 Fig. 9 - Microtopography (3D) 2001

Arctic Ecology Laboratory

Decadal Micro-Topographic Change in Tundra Near Point Barrow, Alaska