Surface air temperature response to large-scale volcanic eruptions and its relationship with ENSO

• Kitabayashi Sho

  Graduate Student, Tokyo Metropolitan Univ.

• Takahashi Hiroshi G.

  Tokyo Metropolitan Univ.

Bibliographic Information

Other Title

• 大規模火山噴火後の地表気温応答の評価 -ENSOとの関連性-

Abstract

When a large volcanic eruption occurs, an increase in stratospheric sulfate aerosol reduces downward solar radiation at the surface, which decreases surface air temperature (SAT) globally for a few years. However, it is generally difficult to estimate the effects of a volcanic eruption because of the existence of internal variations in the climate system such as El Nino-Southern Oscillation (ENSO). This study estimated the SAT change after large low-latitude volcanic eruptions focusing on the phase of ENSO by analyzing CMIP5 historical experiments. The contribution of the ENSO to SAT is estimated about 1/10 of whole decrease of SAT by eruptions.

Journal

• Proceedings of the General Meeting of the Association of Japanese Geographers

  Proceedings of the General Meeting of the Association of Japanese Geographers 2020s (0), 239-, 2020

  The Association of Japanese Geographers

Keywords

• volcanic eruptions
• ENSO
• surface air temperature
• radiation budget
• sulfate aerosol

Details

• CRID: 1390002184889167104
• NII Article ID: 130007822178
• DOI: 10.14866/ajg.2020s.0_239
• Text Lang: ja
• Data Source:
  • JaLC
  • CiNii Articles
• Abstract License Flag: Disallowed