Reconstructing the glacier contribution to sea-level rise back to 1850

International audience We present a method to estimate the glacier contribution to sea-level rise from glacier length records. These records form the only direct evidence of glacier changes prior to 1946, when the first continuous mass-balance observations began. A globally representative length sig...

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Bibliographic Details
Main Authors: Oerlemans, J., Dyurgerov, M., van de Wal, R. S. W.
Other Authors: Institute for Marine and Atmospheric Research Utrecht (IMAU), Universiteit Utrecht / Utrecht University Utrecht, Department of Physical Geography and Quaternary Geology
Format: Article in Journal/Newspaper
Language:English
Published: HAL CCSD 2007
Subjects:
[SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces
environment
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean
Atmosphere
[SDU.STU]Sciences of the Universe [physics]/Earth Sciences
The Cryosphere
Online Access:https://hal.science/hal-00298508
https://hal.science/hal-00298508/document
https://hal.science/hal-00298508/file/tc-1-59-2007.pdf
Description
Summary:International audience We present a method to estimate the glacier contribution to sea-level rise from glacier length records. These records form the only direct evidence of glacier changes prior to 1946, when the first continuous mass-balance observations began. A globally representative length signal is calculated from 197 length records from all continents by normalisation and averaging of 14 different regions. Next, the resulting signal is calibrated with mass-balance observations for the period 1961?2000. We find that the glacier contribution to sea level rise was 5.5±1.0 cm during the period 1850?2000 and 4.5±0.7 cm during the period 1900?2000.

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