History, mass loss, structure, and dynamic behavior of the Antarctic Ice Sheet

被引：34

作者：

Bell, Robin E. ^{[1
]}

Seroussi, Helene ^{[2
]}

机构：

[1] Columbia Univ, Lamont Doherty Earth Observ, Palisades, NY 10964 USA

[2] CALTECH, Jet Prop Lab, 4800 Oak Grove Dr MS 300-323, Pasadena, CA 91109 USA

来源：

SCIENCE | 2020年 / 367卷 / 6484期

基金：

美国国家航空航天局;

关键词：

WEST ANTARCTICA; PINE ISLAND; SHELF; CLIMATE; GLACIERS; SURFACE; LARSEN; WATER; SENSITIVITY; WIDESPREAD;

D O I：

10.1126/science.aaz5489

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Antarctica contains most of Earth's fresh water stored in two large ice sheets. The more stable East Antarctic Ice Sheet is larger and older, rests on higher topography, and hides entire mountain ranges and ancient lakes. The less stable West Antarctic Ice Sheet is smaller and younger and was formed on what was once a shallow sea. Recent observations made with several independent satellite measurements demonstrate that several regions of Antarctica are losing mass, flowing faster, and retreating where ice is exposed to warm ocean waters. The Antarctic contribution to sea level rise has reached similar to 8 millimeters since 1992. In the future, if warming ocean waters and increased surface meltwater trigger faster ice flow, sea level rise will accelerate.

引用

页码：1321 / 1325

页数：5

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