World Glacier Monitoring Service

The series ‘Fluctuations of Glaciers’ (FoG), prepared by the WGMS, continously publishes internationally collected, standardised data on changes in glaciers throughout the world at 5-yearly intervals. The objective of the publication is to reproduce a global set of data which

affords a general view of the changes,
encourages more extensive measurements,
invites further processing of the results,
facilitates consultation of the further sources, and
serves as a basis for research.

In fact, this standarised data set should be regarded as a working tool for the scientific community, especially concerning the fields of glaciology, climatology, hydrology, and quarternary geology.

The 'Fluctuations of Glaciers' series has the International Standard Serial Number (ISSN) 1997-910X (print) and 1997-9118 (online), respectively.

Newer issues of the FoG can be downloaded below, older ones can be ordered as hardcopy at WGMS.

Preliminary mass balance data for the balance year 2007/08!

Published FoGs:

FoG I	1959-1965
FoG II	1965-1970
FoG III	1970-1975
FoG IV	1975-1980
FoG V	1980-1985
FoG VI	1985-1990
FoG VII	1990-1995 [pdf]
FoG VIII	1995-2000 [pdf]
FoG IX	2000-2005 [pdf]

fluctuations of glaciers