まとめ
1982年のエル・チホン噴火は,わずか3週間で地球を周回した巨大な平流圏の塵雲を生み出した. この火山の塵雲は,衛星画像を用いて記録された中で,最大で最長に存在したものです.
科学分野:
- 火山学 火山学とは
- 大気科学 大気科学
- リモートセンシング (リモートセンサー)
背景:
- 1982年のエル・チホン噴火は,かなりの量の火山物質を平流層に注入した.
- 火山灰の散布を理解することは,気候と航空の安全性にとって極めて重要です.
研究 の 目的:
- エル・チション噴火からの平流層の塵雲の地球規模の動きと持続時間を追跡するために.
- 衛星データを用いて,この主要な火山の規模と持続を記録する.
主な方法:
- 国立海洋大気管理局 (NOAA) の衛星画像を利用した.
- 火山塵雲の地理的分布を監視するために,毎日地図を作成しました.
- 衛星データを分析して,雲の大きさと長寿を判断した.
主要な成果:
- ストラトスフィアの塵雲は,3週間以内に地球を完全に周回した.
- El Chichónの塵雲は,これまでに衛星画像で記録された,最大かつ最も持続的な火山雲であると観察されました.
- 日々のマッピングは,雲の移動と分散パターンの包括的な記録を提供しました.
結論:
- 衛星によるリモートセンシングは,大規模な火山現象を監視するための効果的なツールです.
- 急速な地球規模での拡散は,大規模な火山噴火による大気への重大な影響を強調しています.
- エル・チホン事件は,平流層の火山雲の行動の基準として機能しています.
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