Comparison of glacier-inferred temperatures with observations and climate model simulations
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Author
Ren, Diandong; KAROLY, DAVIDDate
2006Source Title
Geophysical Research LettersPublisher
American Geophysical UnionUniversity of Melbourne Author/s
Karoly, DavidAffiliation
Science - Earth SciencesMetadata
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Journal ArticleCitations
D., & Karoly, D. (2006). Comparison of glacier-inferred temperatures with observations and climate model simulations. Geophysical Research Letters, 33, doi: 10.1029/2006GL027856.Access Status
Open AccessDescription
© 2006 American Geophysical Union
Abstract
A reconstructed temperature history for different regions of the globe was prepared by Oerlemans (2005) from length changes of 169 glaciers. In this study, we compare the glacier-inferred temperature variations over 1900–1990 with observed and climate model simulated temperatures for the global average and for five regions: Southern Hemisphere, northwest America, Atlantic, Asia, and the Alps. There is reasonable agreement between the glacier-inferred temperature trends and the observed temperature trends for the globe and in four of the five regions (except northwest America, NWAme). The trends for the globe and in these regions are significantly different from zero, cannot be explained by natural variability (again except for NWAme), and are consistent with the model-simulated response to anthropogenic forcing in all regions. Hence, it is likely that the glacier length reductions are outside the range of natural variations and due in part to regional warming associated with increasing concentrations of greenhouse gases in the atmosphere.
Keywords
climate variability; glacier length variations; GCM simulations of temperatureExport Reference in RIS Format
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