Retrogressive thaw slumps (RTS) are caused by thaw of massive
ground ice on slopes and combine subsidence, mass movement, and
water erosion. They can expose several hectares of bare soil that
is susceptible to erosion into nearby water bodies. In the summers
of 2010 and 2011, oblique aerial-photographs of 26 RTS in Noatak
National Preserve (NOAT) and Gates of the Arctic National Park and
Preserve (GAAR) were taken with a hand-held, 35-mm digital camera.
Accurate ground control was obtained at 23 of the slumps by
surveying the location of temporary targets that were captured on
the aerial photographs and then removed. These photographs were
used to create high-resolution three-dimensional topographic models
with photographic overlay. Photographs were taken in both years at
18 of the RTS. The current report: 1) documents changes in the
slumps that had photographs from both years, and 2) describes a new
slump photographed for the first time in 2011.
General
Is the information for this product incomplete, wrong or inappropriate?
Let us know about it.
Does this product have an incorrect or missing image?
Send us a new image.
Is this product missing categories?
Add more categories.
Review This Product
No reviews yet - be the first to create one!