| Title | Distribution of permafrost types and buried ice in ice-free areas of Antarctica |
| Author | Bockheim, J.G.; Campbell, I.B.; Guglielmin, M.; López Martínez, J. |
| Author Affil | Bockheim, J.G., University of Wisconsin, Madison, WI. Other: Land & Soil Consultancy Services, New Zealand; Universita della Insubria, Italy; Universidad de Madrid, Spain |
| Source | International Conference on Permafrost (ICOP) Proceedings, Vol.9, p.125-130, ; Ninth international conference on Permafrost, Fairbanks, AK, June 29-July 3, 2008, edited by D.L. Kane and K.M. Hinkel. Publisher: [publisher varies], [location varies], International |
| Publication Date | 2008 |
| Notes | In English. 12 refs. Ant. Acc. No: 84524. GeoRef Acc. No: 285539 |
| Index Terms | cements; diagenesis; ice; mapping; permafrost; soils; soil cement; soil mapping; topography; Antarctica--Antarctic Peninsula; Antarctica--East Antarctica; Antarctic Peninsula; Antarctica; cement; cementation; East Antarctica; elevation; spatial distribution |
| Abstract | Only 0.35% (49,800 km2) of Antarctica is ice-free. We have divided the continent into nine major ice-free regions and estimated the distribution of permafrost by form: (i) buried ice within the upper 100 cm; (ii) ice-cemented permafrost with the surface within the upper 70 cm; (iii) ice-cemented permafrost with the surface below 70 cm; and (iv) dry-frozen permafrost with the surface below 70 cm, For each of these categories, permafrost distribution was divided into continuous, discontinuous, and sporadic or no permafrost. Based on preliminary analysis, 43% of the ice-free areas contain ice- cemented permafrost in the upper 70 cm, followed by dry-frozen permafrost (41%), and buried ice (13%). Permafrost is continuous throughout East Antarctica and along the Antarctic Peninsula and the surrounding islands at elevations generally above 40 m a.s.l. Along the Antarctic Peninsula, discontinuous permafrost exists at elevations between 40 and 20 m a.s.l, and permafrost is either sporadic or lacking below 20 m a.s.l. |
| URL | http://www.blue-europa.org/nicop_proceedings/1%20Vol%201%20(i-250).pdf |
| Publication Type | conference paper or compendium article |
| Record ID | 62005833 |