人工貯水池の貯水による地球海平面への影響
1College of Earth Sciences, National Central University, Chung-Li, Taiwan, ROC. bfchao@ncu.edu.tw
まとめ
人工貯水池は10,800立方キロメートルの水を貯蔵し,世界の海面上昇 (GSL) を30mm削減しました. これは,80年間にわたり,年間2.46mmの恒常的なGSL上昇率を示唆しています.
科学分野:
- 地球科学 地球科学 地球科学
- 水文学 水文学とは
- 気候科学 気候科学
背景:
- 世界海面上昇 (GSL) は,気候変動の重要な指標である.
- 観測されたGSL上昇率は,多くの場合,すべての影響要因を考慮せずに直接的な測定に基づいています.
研究 の 目的:
- 世界的な人工貯水池における水貯蔵の歴史を再構築する.
- 貯水池の貯水が世界の海面上昇に与える影響を定量化するために.
- 貯水水を考慮して,改訂されたGSL上昇履歴を提供するために.
主な方法:
- 世界中の人工貯水池における歴史的貯水量の再構築.
- GSLの削減に対する貯水水の累積効果の計算.
- 観測されたGSLデータの調整は,貯水された水の量を加算することによって行われました.
主要な成果:
- 世界中で約10,800立方キロメートルの水が,人工貯水池に蓄積されている.
- 貯水池は,世界の海面上昇を推定30.0ミリメートル減少させた.
- 埋蔵によるGSLの減少の平均率は,過去50年間,年間 -0.55ミリメートルでした.
結論:
- 人工貯水池の影響は,GSLの上昇に対する認識を大幅に変化させます.
- 貯水水を考慮した改訂されたGSLの歴史は,少なくとも80年間,年間2.46mmの恒常的な上昇率を示しています.
- この改訂された理解は,GSLの上昇に寄与する他の要因の再評価を必要とします.
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