法国阿尔卑斯山上的冰川正在消失-凯发k8官网

法国阿尔卑斯山上的冰川正在消失

文章来源：未知文章作者：enread 发布时间：2011-12-07 06:40 字体： [ ]　

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² in the french alps have lost a quarter of their area in the past 40 years, according to new research.

一项新调查显示，在过去40年间，法国阿尔卑斯山上的冰川消失了1/4。

in the ecrins massif, glacial retreat is more than three times stronger than in the mont blanc region
in the late 1960s/early 1970s, the ice fields slipping down mont blanc and the surrounding mountains of the european range covered some 375 sq km.

by the late 2000s, this area had fallen to about 275 sq km.

the research has been presented at the american geophysical union (agu) fall meeting, the world's largest annual ³ of earth scientists.

it mirrors some findings of retreat occurring in other ⁴ of the alps which sit across the borders of several nations, but predominantly（主要地） switzerland, austria, slovenia, germany, france, and italy.

the new french alps glaciers ⁵ was produced by marie gardent, from the university of savoie, and colleagues.

it assessed the roughly 600 glaciers in broad areas incorporating the ecrins, belledonne, vanoise, ubaye and grande rousse arves massifs, as well as the famous mont blanc massif in the north.

the team drew upon map archives, past satellite imagery and aerial（航空的） photographs. manual ⁶ was used to check the automatic ⁷（描述） methods employed in the pictures was correct.

"we use manual delineation to verify the satellite data because there can be a problem with ⁸ cover on a ¹," explained ms gardent.

"automatic delineation from satellite data will sometimes say there is no glacier when in fact we know there is one there. also, deep shadows can hide the glacier ⁹."

the only existing glacial inventory from the french alps was published four decades ago within the context of the world glacier inventory. it found the overall area of ice to be about 375 sq km.

by 1985-86, in spite of a short advancing period in the late 70s/early 80s, glacial ¹⁰ had decreased to a value close to 340 sq km, the new survey shows.

since then, the ¹¹ has accelerated, with the area being reduced to about 275 sq km in the late 2000s.

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收听单词发音

1
n.冰川，冰河
参考例句：
the glacier calved a large iceberg.冰河崩解而形成一个大冰山。 the upper surface of glacier is riven by crevasses.冰川的上表面已裂成冰隙。

2
冰河，冰川( glacier的名词复数 )
参考例句：
glaciers gouged out valleys from the hills. 冰川把丘陵地带冲出一条条山谷。 it has ice and snow glaciers, rainforests and beautiful mountains. 既有冰川，又有雨林和秀丽的山峰。来自英语晨读30分（高一）

3
n.集会，聚会，聚集
参考例句：
he called on mr. white to speak at the gathering.他请怀特先生在集会上讲话。 he is on the wing gathering material for his novels.他正忙于为他的小说收集资料。

4
n.部门( sector的名词复数 )；领域；防御地区；扇形
参考例句：
berlin was divided into four sectors after the war. 战后柏林分成了4 个区。来自《简明英汉词典》 industry and agriculture are the two important sectors of the national economy. 工业和农业是国民经济的两个重要部门。来自《现代汉英综合大词典》

5
n.详细目录，存货清单
参考例句：
some stores inventory their stock once a week.有些商店每周清点存货一次。 we will need to call on our supplier to get more inventory.我们必须请供应商送来更多存货。

6
n.检查，审查，检阅
参考例句：
on random inspection the meat was found to be bad.经抽查，发现肉变质了。 the soldiers lined up for their daily inspection by their officers.士兵们列队接受军官的日常检阅。

7
n.记述；描写
参考例句：
biography must to some extent delineate characters.传记必须在一定程度上描绘人物。 delineation of channels is the first step of geologic evaluation.勾划河道的轮廓是地质解译的第一步。

8
n.瓦砾堆，废墟，碎片
参考例句：
after the bombing there was a lot of debris everywhere.轰炸之后到处瓦砾成堆。 bacteria sticks to food debris in the teeth,causing decay.细菌附着在牙缝中的食物残渣上，导致蛀牙。

9
边( margin的名词复数 )；利润；页边空白；差数
参考例句：
they have always had to make do with relatively small profit margins. 他们不得不经常设法应付较少的利润额。 to create more space between the navigation items, add left and right margins to the links. 在每个项目间留更多的空隙，加左或者右的margins来定义链接。

10
n.报导，保险范围，保险额，范围，覆盖
参考例句：
there's little coverage of foreign news in the newspaper.报纸上几乎没有国外新闻报道。 this is an insurance policy with extensive coverage.这是一项承保范围广泛的保险。

11
n.取回，提款；撤退，撤军；收回，撤销
参考例句：
the police were forced to make a tactical withdrawal.警方被迫进行战术撤退。 they insisted upon a withdrawal of the statement and a public apology.他们坚持要收回那些话并公开道歉。