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Two major volcanic cooling episodes derived from global marine air temperature, AD 1807–1827
Author(s) -
Chenoweth Michael
Publication year - 2001
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1029/2000gl012648
Subject(s) - volcano , proxy (statistics) , air temperature , environmental science , climatology , geology , atmospheric sciences , meteorology , geography , seismology , machine learning , computer science
A new data set of global marine air temperature data for the years 1807–1827 is used to show the impact of volcanic eruptions in ∼ 1809 (unlocated) and 1815 (Tambora, Indonesia). Both eruptions produced cooling exceeding that after Krakatoa, Indonesia (1883) and Pinatubo, Philippines (1991). The ∼1809 eruption is dated to March‐June 1808 based on a sudden cooling in Malaysian temperature data and maximum cooling of marine air temperature in 1809. Two large‐scale calibrated proxy temperature records, one from tree‐ring‐density data, the other using multi‐proxy sources are compared to the marine air temperature data. Correlation is highest with maximum latewood density data and lowest with the multi‐proxy data.