A 1119-year tree-ring-width chronology from western Prince William Sound, southern Alaska
Living and subfossil trees from glacier forefields are used to develop a 1119-year-long tree-ringwidth chronology. Strong cross-dating among ring-width series from sites up to 60 km apart and an analysis of sample homogeneity support combination of all samples into a single, regional composite chron...
Published in: | The Holocene |
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Main Authors: | , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
SAGE Publications
1999
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Subjects: | |
Online Access: | http://dx.doi.org/10.1191/095968399672825976 http://journals.sagepub.com/doi/pdf/10.1191/095968399672825976 |
Summary: | Living and subfossil trees from glacier forefields are used to develop a 1119-year-long tree-ringwidth chronology. Strong cross-dating among ring-width series from sites up to 60 km apart and an analysis of sample homogeneity support combination of all samples into a single, regional composite chronology. Comparison with instrumental climate data indicates May through July temperatures of the growth year are the primary control on ring-widths. Multidecadal-length warm periods in western Prince William Sound during the past 800 years were centred on AD 1300, 1440 and possibly 1820. Multidecadal-length cool periods were centred on AD 1400, 1660 and 1870. This is the first tree-ring chronology from the Gulf of Alaska region to extend into the first millennium AD. |
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