综合一区欧美国产,99国产麻豆免费精品,九九精品黄色录像,亚洲激情青青草,久久亚洲熟妇熟,中文字幕av在线播放,国产一区二区卡,九九久久国产精品,久久精品视频免费

USEUROPEAFRICAASIA 中文雙語Fran?ais
China
Home / China / Across America

NASA: Antarctic ice shelf years from disintegration

By Reuters | China Daily USA | Updated: 2015-05-15 11:29

The last intact section of one ofAntarctica's mammoth ice shelves is weakening fast and will likely disintegrate completely in the next few years, contributing further to rising sea levels, according to a NASA study released on Thursday.

The research focused on a remnant of the so-called Larsen B Ice Shelf, which has existed for at least 10,000 years but partially collapsed in 2002. What is left covers about 625 square miles (1,600 square km), about half the size of Rhode Island.

Antarcticahas dozens of ice shelves - massive, glacier-fed floating platforms of ice that hang over the sea at the edge of the continent's coast line. The largest is roughly the size ofFrance.

Larsen B is located in theAntarcticPeninsula, which extends toward the southern tip ofSouth Americaand is one of two principal areas of the continent where scientists have documented the thining of such ice formations.

"This study of theAntarcticPeninsula glaciers provides insights about how ice shelves farther south, which hold much more land ice, will react to a warming climate," said Eric Rignot, co-author of the study and a glaciologist at NASA's Jet Propulsion Laboratory inPasadena,California.

The UN Intergovernmental Panel on Climate Change has cited a probability of at least 95 percent that accelerated warming of the planet has been triggered by human activities.

The study, published online in the journal Earth and Planetary Science Letters, was based on airborne surveys and radar data.

The study's lead scientist,Ala Khazendar, said analysis of the data reveals that a widening rift in Larsen B will eventually break it apart completely, probably around the year 2020.

Once that happens, glaciers held in place by the ice shelf will slip into the ocean at a faster rate and contribute to rising sea levels, scientists say.

 

Polar icebreaker Snow Dragon arrives in Antarctic
Xi's vision on shared future for humanity
Air Force units explore new airspace
Premier Li urges information integration to serve the public
Dialogue links global political parties
Editor's picks
Beijing limits signs attached to top of buildings across city
Copyright 1995 - . All rights reserved. The content (including but not limited to text, photo, multimedia information, etc) published in this site belongs to China Daily Information Co (CDIC). Without written authorization from CDIC, such content shall not be republished or used in any form. Note: Browsers with 1024*768 or higher resolution are suggested for this site.
License for publishing multimedia online 0108263

Registration Number: 130349
FOLLOW US
青冈县| 洛浦县| 雅江县| 法库县| 比如县| 吴堡县| 礼泉县| 兴文县| 永川市| 常州市| 关岭| 延长县| 南川市| 莲花县| 磴口县| 仁布县| 肥西县| 云阳县| 交城县| 苍山县| 德令哈市| 商河县| 尼勒克县| 日照市| 钟山县| 扶风县| 久治县| 石河子市| 石嘴山市| 密云县| 山西省| 和顺县| 娱乐| 温宿县| 海淀区| 通江县| 大冶市| 正定县| 尉氏县| 姚安县| 阜新市|