The Firn Field on the Volcano Popocatépetl, Mexico
- 1 January 1954
- journal article
- Published by International Glaciological Society in Journal of Glaciology
- Vol. 2 (16) , 389-396
- https://doi.org/10.3189/002214354793702560
Abstract
The firn field on the volcano Popocatépetl is most extensive, lowest in altitude (4573 m.) and thickest (40 m.) on the northwest side of the cone. An expansion of the firn field on this side in the form of two small glaciers, one with miniature lateral moraines, has appeared since 1945 and still persists. Crevasses in the firn appear, widen, progress downslope and disappear, with new ones replacing them from above. Accumulation of snow from November through January and also from June through September exceeds ablation, and permits development of the firn field with expected seasonal and annual marginal fluctuations. A recession of 100 m. in altitude of the firn field from 1906 to 1920 is indicated by photographic studies and by field evidence.Keywords
This publication has 1 reference indexed in Scilit:
- Ascent of the Volcano of PopocatepetlThe American Naturalist, 1886