High-resolution simulation of volcanic sulfur dioxide dispersion over the Miyake Island

Seino, Naoko; Sasaki, Hirokazu; Sato, Junji; Chiba, Momoko

doi:10.1016/j.atmosenv.2004.01.061

Cited by 11 publications

(8 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…This mesoscale ATM takes a Lagrangian scheme (Seino et al, 2004) with many tracer particles that follow advection, horizontal and vertical diffusion, fallout, and dry and wet deposition processes. JMA incorporated photochemical oxidant information in June 2007 (Takano et al, 2007) and the tephra fall forecast in March 2008 (Shimbori et al, 2010).…”

Section: Mesoscale Tracer Transport Modelmentioning

confidence: 99%

The JMA Nonhydrostatic Model and Its Applications to Operation and Research

Saitō¹

2012

Atmospheric Model Applications

View full text Add to dashboard Cite

Section: Mesoscale Tracer Transport Modelmentioning

confidence: 99%

The JMA Nonhydrostatic Model and Its Applications to Operation and Research

Saitō¹

2012

Atmospheric Model Applications

View full text Add to dashboard Cite

“…Sulfate particles are important anthropogenic aerosols influencing climate (Pósfai et al, 1997;Williams et al, 2001). Furthermore, volcanic activity is a major contributor of sulfur to the atmosphere (ZredaGostynska et al, 1993;Graf et al, 1998;Streets et al, 2000;Seino et al, 2004;Bhugwant et al, 2009;Bao et al, 2010;Gieré and Querol, 2010), particularly in countries such as Japan, Indonesia, Réunion Island, the Philippines, Iceland, Guatemala, and New Zealand (Rose et al, 1986;Andres et al, 1993;Streets et al, 2000;Seino et al, 2004;Chenet et al, 2005;Bhugwant et al, 2009).…”

Section: Introductionmentioning

confidence: 99%

Sulfur-containing particles emitted by concealed sulfide ore deposits: an unknown source of sulfur-containing particles in the atmosphere

Cao

Jiang

et al. 2015

Atmos. Chem. Phys.

View full text Add to dashboard Cite

Abstract. Sources of sulfur dioxide, sulfates, and organic sulfur compounds, such as fossil fuels, volcanic eruptions, and animal feeding operations, have attracted considerable attention. In this study, we collected particles carried by geogas flows ascending through soil, geogas flows above the soil that had passed through the soil, and geogas flows ascending through deep faults of concealed sulfide ore deposits, and analysed them using transmission electron microscopy. Numerous crystalline and amorphous sulfurcontaining particles or particle aggregations were found in the ascending geogas flows. In addition to S, the particles contained O, Ca, K, Mg, Fe, Na, Pb, Hg, Cu, Zn, As, Ti, Sr, Ba, Si, etc. Such particles are usually a few to several hundred nanometres in diameter with either regular or irregular morphology. The sulfur-containing particles originated from deep-seated weathering or faulting products of concealed sulfide ore deposits. The particles suspended in the ascending geogas flow migrated through faults from deepseated sources to the atmosphere. This is a previously unknown source of the atmospheric particles. This paper reports, for the first time, the emission of sulfur-containing particles into the atmosphere from concealed sulfide ore deposits. The climatic and ecological influences of these sulfurcontaining particles and particle aggregations should be assessed.

show abstract

“…The prevalence of the large-scale local wind induces the compensatory return flow (CRF) that blows toward the Pacific coast, resulting in the formation of a large-scale local wind circulation over the plain. There is a possibility that this large-scale local wind circulation influences ash transport originating from the Mount Asama volcano, because the movement of volcanic emissions can be determined by local winds in addition to synoptic winds, as shown in Seino et al (2004), which demonstrated that the anabatic wind on the slope of the Mount Oyama volcano in Miyake Island in Japan is capable of preventing the volcanic gas from flowing toward the foot of the volcano.…”

Section: Introductionmentioning

confidence: 95%

Volcanic Ash Transport from Mount Asama to the Tokyo Metropolitan Area Influenced by Large-Scale Local Wind Circulation

Tsunematsu

Nagai²,

Murayama

et al. 2008

Journal of Applied Meteorology and Climatology

View full text Add to dashboard Cite

The eruption of the Mount Asama volcano on 16 September 2004 produced an ash cloud and led to ashfall in the Tokyo metropolitan area that lies on the Kanto Plain. Satellite images showed the ash cloud drifting toward the south in the morning but to the southeast in the afternoon. An aerosol lidar and a ceilometer, installed in the metropolitan area, continuously observed the southeastward-transported ash particles passing at altitudes of 2.6-4.5 km above mean sea level (MSL) in the nighttime. Results of meteorological analyses and numerical experiments showed that the south-to-southeasterly sea breezes and valley winds prevailed at altitudes below 1.5 km MSL over the Kanto Plain in the afternoon and the compensatory return flow (CRF) was formed aloft at altitudes of 1.5-4.5 km MSL as strong northwesterly winds, which were encouraged by a synoptic wind. The numerical experiments also showed that the direction of the ash transport turned from the south to the southeast following the formation of the northwesterly CRF. This demonstrates that the daytime ash transport was influenced by the CRF. The nocturnal ash transport, however, depended on the intensified synoptic wind. Thus, in addition to synoptic winds, the large-scale local wind circulation prevailing over the Kanto Plain can determine the direction of ash transport originating from the Mount Asama volcano and increase the possibility of ashfall in the Tokyo metropolitan area.

show abstract

High-resolution simulation of volcanic sulfur dioxide dispersion over the Miyake Island

Cited by 11 publications

References 8 publications

The JMA Nonhydrostatic Model and Its Applications to Operation and Research

The JMA Nonhydrostatic Model and Its Applications to Operation and Research

Sulfur-containing particles emitted by concealed sulfide ore deposits: an unknown source of sulfur-containing particles in the atmosphere

Volcanic Ash Transport from Mount Asama to the Tokyo Metropolitan Area Influenced by Large-Scale Local Wind Circulation

Contact Info

Product

Resources

About