Abstract
Ground-penetrating radar (GPR) has been used to study the annual variations of the frost table beneath the
southern parking area at Kangerlussuaq Airport, western Greenland. In autumn 2000, three test areas were
painted white in order to reduce further development of depressions in the asphalt pavement initiated by
permafrost degradation. One of these white painted areas has been used in the investigations to compare
the annual variations of the frost table underneath a normal black asphalt surface to with that below a more
reflective surface. The investigations were carried out from July 2005 until August 2006. The GPR
measurements have shown a clear correlation between the use of the reflective surface and a reduced depth
in the annual variations to the frost table. In late summer (August) the difference in the depths to the frost
table is almost 20 ns, which corresponds to approximately 0.9 m. This constitutes a major difference in the
thermal conditions below the reflective surface and the normal black asphalt surface.
| Original language | English |
|---|---|
| Title of host publication | International Conference, Arctic Roads : Operating, maintaining and building roads in a climatically challenging environment |
| Editors | Thomas Ingeman-Nielsen, Janne Fritt-Rasmussen, Niels Brock, Arne Villumsen |
| Number of pages | 88 |
| Place of Publication | Kgs. Lyngby, Denmark |
| Publisher | DTU Byg, Danmarks Tekniske Universitet |
| Publication date | 2007 |
| ISBN (Print) | 978-877877-230-5 |
| Publication status | Published - 2007 |
| Event | International conference, Arctic roads : Operating, maintaining and building roads in a climatically challenging environment - Sisimiut, Greenland Duration: 1 Jan 2007 → … |
Conference
| Conference | International conference, Arctic roads : Operating, maintaining and building roads in a climatically challenging environment |
|---|---|
| City | Sisimiut, Greenland |
| Period | 01/01/2007 → … |