Nonparametric Estimation of Temperature Response to Volcanic Forcing DOI
Eirik Rolland Enger, Rune Grand Graversen, Audun Theodorsen

et al.

Journal of Geophysical Research Atmospheres, Journal Year: 2025, Volume and Issue: 130(10)

Published: May 13, 2025

Abstract Large volcanic eruptions strongly influence the internal variability of climate system. Reliable estimates eruption response as simulated by models are needed to reconstruct past variability. Yet, ability represent both single‐eruption events and a combination remains uncertain. We use Community Earth System Model version 2 along with Whole Atmosphere Climate 6, known CESM2(WACCM6), study global‐mean surface temperature (GMST) idealized single volcano at equator, ranging in size from Mt. Pinatubo‐type supereruptions. Additionally, we simulate GMST double‐eruption separations few years. For large eruptions, demonstrate that separated 4 years combine linearly terms response. In addition, temporal development is similar across all injecting least 400 Tg into atmosphere. Because only millennium occurred within previous eruption, assume historical record can be represented superposition events. Hence, employ deconvolution method estimate nonparametric pulse function for based on simulation data 850 1850 taken study. By applying estimated function, most underlying signal. Furthermore, significantly perturbed 7 following eruptions.

Language: Английский

Nonparametric Estimation of Temperature Response to Volcanic Forcing DOI
Eirik Rolland Enger, Rune Grand Graversen, Audun Theodorsen

et al.

Journal of Geophysical Research Atmospheres, Journal Year: 2025, Volume and Issue: 130(10)

Published: May 13, 2025

Abstract Large volcanic eruptions strongly influence the internal variability of climate system. Reliable estimates eruption response as simulated by models are needed to reconstruct past variability. Yet, ability represent both single‐eruption events and a combination remains uncertain. We use Community Earth System Model version 2 along with Whole Atmosphere Climate 6, known CESM2(WACCM6), study global‐mean surface temperature (GMST) idealized single volcano at equator, ranging in size from Mt. Pinatubo‐type supereruptions. Additionally, we simulate GMST double‐eruption separations few years. For large eruptions, demonstrate that separated 4 years combine linearly terms response. In addition, temporal development is similar across all injecting least 400 Tg into atmosphere. Because only millennium occurred within previous eruption, assume historical record can be represented superposition events. Hence, employ deconvolution method estimate nonparametric pulse function for based on simulation data 850 1850 taken study. By applying estimated function, most underlying signal. Furthermore, significantly perturbed 7 following eruptions.

Language: Английский

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