Meteorological responses to Mt. Baekdu volcanic eruption over east asia in an offline global climate-chemistry model: A pilot study SCIE SCOPUS KCI

Cited 2 time in WEB OF SCIENCE Cited 1 time in Scopus
Title
Meteorological responses to Mt. Baekdu volcanic eruption over east asia in an offline global climate-chemistry model: A pilot study
Author(s)
Moon, Byung-Kwon; Youn, Daeok; Park, Rokjin J.; Yeh, Sang-Wook; Kim, Won-Mo; Kim, Young-Ho; Jeong, Jaein I.; Woo, Jung-Hun; Im, Eul Gyu; Song, Chang-Keun
Publication Year
2011-08
Abstract
We examine the meteorological responses due to the probable eruption of Mt. Baekdu using an off-line Climate-Chemistry model that is composed of the National Center for Atmospheric Research (NCAR) Climate Atmosphere Model version 3 (CAM3) and a global chemistry transport model (GEOS-Chem). Using the aerosol dataset from the GEOS-Chem driven by GEOS-5 meteorology, experiment and control simulations of the climate model are performed and their meteorological differences between the two simulations are analyzed. The magnitudes of volcanic eruption and column injection height were presumably set to 1/200 of the Mt. Pinatubo eruption and 9 km, respectively. Significant temperature drop in the lower troposphere (850 hPa), which is mainly due to a direct effect of prescribed volcanic aerosols from Mt. Baekdu, has been simulated up to about -4 K. The upper atmosphere (150 hPa) right above the volcano, however, shows significant warming due to the absorption of the infrared radiation by volcanic aerosols. As a result of the volcanic eruption in the climate model, wave-like patterns are shown in both the geopotential height and horizontal wind. The changes in the lower atmospheric temperature are well associated with the modification of the atmospheric circulation through the hydrostatic balance. In spite of limitations in our current simulations due to several underlying assumptions, our results could give a clue to understanding the meteorological impacts from Mt. Baekdu eruptions that are currently attracting considerable public attention.
ISSN
1976-7633
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/3840
DOI
10.1007/s13143-011-0021-z
Bibliographic Citation
ASIA-PACIFIC JOURNAL OF ATMOSPHERIC SCIENCES, v.47, no.4, pp.345 - 351, 2011
Publisher
KOREAN METEOROLOGICAL SOC
Subject
CHANGBAISHAN-TIANCHI-VOLCANO; PINATUBO ERUPTION; AEROSOLS; SIMULATION; EMISSIONS; IMPACT; GAS
Keywords
Mt. Baekdu; volcanic eruption; meteorological response; climate model; chemistry-transport model
Type
Article
Language
English
Document Type
Article
Publisher
KOREAN METEOROLOGICAL SOC
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