The retreat of Tien Shan glaciers (Kyrgyzstan) since the Little Ice Age estimated from aerial photographs, lichenometric and historical data

Auteurs :
SOLOMINA, O.
BARRY, R.
BODNYA, M.

Description :
The retreat of 293 glaciers in the Tien Shan Mountains from their maximum extent during the Little Ice Age (LIA) is estimated using aerial photographs from 1980 to 1985 and maps at a scale of 1:25 000, constructed during period 1956-1990. Two indices of changes are used : the linear distance from the glacier terminus to its Little Ice Age moraine and the difference in absolute elevation of the terminus and the moraine. Historical information about the front positions of glaciers in the 1880s to the 1930s was used as an indirect control of remote sensing data. The age of moraines in key regions was estimated by lichenometry.


Type de document :
Article de périodique

Source :
Geografiska annaler. Series A. Physical geography, issn : 0435-3676, 2004, vol. 86, n°. 2, p. 205-215, nombre de pages : 11, Collation : Illustration, Références bibliographiques : 29 ref.

Date :
2004

Editeur :
Pays édition : Suede, Stockholm, Svenska sällskapet för antropologi och geografi