Threshold of the volcanic forcing that leads the El Niño-like warming in the last millennium: results from the ERIK simulation

  title={Threshold of the volcanic forcing that leads the El Ni{\~n}o-like warming in the last millennium: results from the ERIK simulation},
  author={Hyung‐Gyu Lim and Sang‐Wook Yeh and Jong‐Seong Kug and Young‐Gyu Park and Jaehun Park and Rokjin J. Park and Chang-Keun Song},
  journal={Climate Dynamics},
Abstract In order to examine the threshold of the volcanic forcing that leads to the El Niño-like warming, we analyze a millennium ERIK simulation (AD 1000–1850) forced by three external forcings including greenhouse gases, solar forcing and volcanic eruptions using the ECHO-G coupled climate model. It is found that there exists a threshold of the volcanic forcing above 15 W/m2 to lead the El Niño-like warming in the climate model. When the volcanic forcing is above this threshold forcing, then… 

Modulation of ENSO evolution by strong tropical volcanic eruptions

The simulated responses of the El Niño–Southern Oscillation (ENSO) to volcanic forcings are controversial, and some mechanisms of these responses are not clear. We investigate the impacts of volcanic

Divergent El Niño responses to volcanic eruptions at different latitudes over the past millennium

Detection and attribution of El Niño-Southern Oscillation (ENSO) responses to radiative forcing perturbation are critical for predicting the future change of ENSO under global warming. One of such

Tropical explosive volcanic eruptions can trigger El Niño by cooling tropical Africa

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The sensitivity of the El Niño–Southern Oscillation to volcanic aerosol spatial distribution in the MPI Grand Ensemble

Abstract. Using the Max Planck Institute Grand Ensemble (MPI-GE) with 200 members for the historical simulation (1850–2005), we investigate the impact of the spatial distribution of volcanic aerosols

Different Impacts of Northern, Tropical, and Southern Volcanic Eruptions on the Tropical Pacific SST in the Last Millennium

The impact of northern, tropical, and southern volcanic eruptions on the Pacific sea surface temperature (SST) and the different response mechanisms arising due to differences in the volcanic forcing

Dependence of global monsoon response to volcanic eruptions on the background oceanic states

<p>Both proxy data and climate modeling show divergent responses of global monsoon precipitation to volcanic eruptions. The reason is however unknown. Here, based on analysis of the CESM Last

How Do Tropical, Northern Hemispheric, and Southern Hemispheric Volcanic Eruptions Affect ENSO Under Different Initial Ocean Conditions?

Current understanding of volcanic effects on El Niño–Southern Oscillation in terms of eruption type and initial ocean condition (IOC) remains elusive. We use last‐millennium proxy reconstructions to

The sensitivity of the ENSO to volcanic aerosol spatial distribution in the MPI large ensemble

Abstract. Using the Max Planck Institute Grand Ensemble (MPI-GE) with 200 members for the historical simulation (1850–2005), we investigate the impact of the spatial distribution of volcanic aerosols

Impacts of a Pinatubo‐size volcanic eruption on ENSO

Observations and model simulations of the climate responses to strong explosive low‐latitude volcanic eruptions suggest a significant increase in the likelihood of El Niño during the eruption and

A robust equatorial Pacific westerly response to tropical volcanism in multiple models

After each of the 1963 Agung, 1982 El Chichón, and 1991 Pinatubo eruptions, an El Niño was observed. The increased likelihood of an El Niño after a tropical eruption has also been found in long-term



Impact of Strong Tropical Volcanic Eruptions on ENSO Simulated in a Coupled GCM

AbstractThe impact of strong tropical volcanic eruptions (SVEs) on the El Nino–Southern Oscillation (ENSO) and its phase dependency is investigated using a coupled general circulation model (CGCM).

Volcanoes and ENSO over the Past Millennium

Abstract The controversial claim that El Nino events might be partially caused by radiative forcing due to volcanic aerosols is reassessed. Building on the work of Mann et al., estimates of volcanic

Proxy evidence for an El Niño-like response to volcanic forcing

A significant, multi-year, El Niño-like response to explosive tropical volcanic forcing over the past several centuries is demonstrated, shedding light on how the tropical Pacific ocean–atmosphere system may respond to exogenous radiative forcing.

Weakening of tropical Pacific atmospheric circulation due to anthropogenic forcing

Observed Indo-Pacific sea level pressure reveals a weakening of the Walker circulation, and the climate model indicates that the weakened surface winds have altered the thermal structure and circulation of the tropical Pacific Ocean.

Centennial Variations of the Global Monsoon Precipitation in the Last Millennium: Results from ECHO-G Model

The authors investigate how the global monsoon (GM) precipitation responds to the external and anthropogenic forcing in the last millennium by analyzing a pair of control and forced millennium

Forced response of the East Asian summer rainfall over the past millennium: results from a coupled model simulation

The centennial–millennial variation of the East Asian summer monsoon (EASM) precipitation over the past 1000 years was investigated through the analysis of a millennium simulation of the coupled

A Coupled Air–Sea Response Mechanism to Solar Forcing in the Pacific Region

The 11-yr solar cycle [decadal solar oscillation (DSO)] at its peaks strengthens the climatological precipitation maxima in the tropical Pacific during northern winter. Results from two global

Volcanic forcing of climate over the past 1500 years: An improved ice core-based index for climate models

[1] Understanding natural causes of climate change is vital to evaluate the relative impacts of human pollution and land surface modification on climate. We have investigated one of the most

ENSO variability and atmospheric response in a global coupled atmosphere-ocean GCM

Abstract. The interannual variability associated with the El Niño/Southern Oscillation (ENSO) cycle is investigated using a relatively high-resolution (T42) coupled general circulation model (CGCM)

Last Millennium Climate and Its Variability in CCSM4

AbstractAn overview of a simulation referred to as the “Last Millennium” (LM) simulation of the Community Climate System Model, version 4 (CCSM4), is presented. The CCSM4 LM simulation reproduces