スヴァルバルドの氷河の変化は 2100 年までに氷河の量減少が 2 倍になると予測されています
PubMedで要約を見る
まとめ
この要約は機械生成です。氷河の融解は海面上昇に大きく貢献しています スヴァルバルド
科学分野
- 氷河学 と 気候 科学
- 地球システム科学
- 凍り付いた宇宙の研究
背景
- 氷河や氷冠の融解は 地球の海面上昇に大きく寄与しています
- スヴァルバルドの独特の気候のグラデーションは 温暖化への氷河の反応を 研究するのに理想的な場所です
- 氷河の質量バランスを理解することは 将来の海面の変化を予測するのに不可欠です
研究 の 目的
- スヴァルバルドの氷河の薄まり率を 定量化するために
- スヴァルバルドの氷河の 気候感受性を決定する
- 気候変動のシナリオの下で スヴァルバルドの氷河の変化を予測する
主な方法
- 歴史的な航空画像 (1936年−1938年) と近代的な高度データを使用した.
- 氷河の幾何学を再現するために 構造から運動のフォトグラメトリーを使用した.
- 氷河の変化を気候変数と関連付けるために 70年以上の質量バランスパターンを分析した.
主要な成果
- 氷河の希薄化率は1936年から2010年までの2倍以上になると予測されています
- 夏の平均気温の1°C上昇は,面積正常化された質量バランスの−0.28 m/年減少と相関する.
- スヴァルバルドの氷河の融解を制御する 強い温度依存を特定しました
結論
- スヴァルバルドの氷河は 温度上昇に非常に敏感です
- スヴァルバルドの氷河の減少が加速する
- この研究は,気候モデルと海面上昇予測の改善に不可欠なデータを提供します.
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