Next Article in Journal
Investigation of Transport and Transformation of Tropospheric Ozone in Terrestrial Ecosystems of the Coastal Zone of Lake Baikal
Previous Article in Journal
Precipitation Atlas for Germany (GePrA)
Open AccessArticle

Reconciling the Discrepancy of Post-Volcanic Cooling Estimated from Tree-Ring Reconstructions and Model Simulations over the Tibetan Plateau

by Jianping Duan 1,*, Peili Wu 2 and Zhuguo Ma 1,3
1
CAS Key Laboratory of Regional Climate-Environment for Temperate East Asia, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029, China
2
Met Office Hadley Centre, Exeter EX1 3PB, UK
3
University of Chinese Academy of Sciences, Beijing 100049, China
*
Author to whom correspondence should be addressed.
Atmosphere 2019, 10(12), 738; https://doi.org/10.3390/atmos10120738
Received: 15 October 2019 / Revised: 13 November 2019 / Accepted: 22 November 2019 / Published: 25 November 2019
(This article belongs to the Section Climatology)
Volcanic eruptions are a major factor influencing global climate variability, usually with a cooling effect. The magnitudes of post-volcanic cooling from historical eruptions estimated by tree-ring reconstructions differ considerably with the current climate model simulations. It remains controversial on what is behind such a discrepancy. This study investigates the role of internal climate variability (i.e., El Niño/Southern Oscillation (ENSO) warm phase) with a regional focus on the Tibetan Plateau (TP), using tree-ring density records and long historical climate simulations from the fifth Coupled Model Intercomparsion Project (CMIP5). We found that El Niño plays an important role behind the inconsistencies between model simulations and reconstructions. Without associated El Niño events, model simulations agree well with tree-ring records. Divergence appears when large tropical eruptions are followed by an El Niño event. Model simulations, on average, tend to overestimate post-volcanic cooling during those periods as the occurrence of El Niño is random as part of internal climate variability. View Full-Text
Keywords: volcanic eruptions; summer cooling; tree-ring density; temperature reconstructions; climate model simulations; Tibetan Plateau volcanic eruptions; summer cooling; tree-ring density; temperature reconstructions; climate model simulations; Tibetan Plateau
Show Figures

Figure 1

MDPI and ACS Style

Duan, J.; Wu, P.; Ma, Z. Reconciling the Discrepancy of Post-Volcanic Cooling Estimated from Tree-Ring Reconstructions and Model Simulations over the Tibetan Plateau. Atmosphere 2019, 10, 738.

Show more citation formats Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop