利用卫星图像统计海象数量
文章来源:未知 文章作者:enread 发布时间:2022-01-05 07:27 字体: [ ]  进入论坛
(单词翻译:双击或拖选)
Huge, blubbery and a bit grumpy. Walruses2 are easy enough to spot. But thanks to their remote Arctic location, they're hard to count, and we don't know how many of these giant beasts there are.
大块头,胖嘟嘟,还有点性情乖戾。海象很容易被发现,但由于它们住在偏远的北极地区,所以很难统计其数量,我们也不知道究竟有多少这种体型庞大的动物。
 
Now, using satellite images, the plan is to locate every Atlantic and Laptev Sea Walrus1, and scientists say this is essential, because climate change means these animals are under threat. 
如今,这个计划旨在利用卫星图像定位每一只大西洋海象和拉普捷夫海象,科学家表示这是必要的,因为气候变化意味着这种动物受到了威胁。
 
Peter Fretwell, British Antarctic Survey
The sea ice on which they live most of the year is rapidly diminishing and they are having to change their behaviour and come out onto land much more often. That's almost certainly got some detrimental3 effect on them, but we're not sure how much their population is being affected4 by that. Hopefully, this project will tell us that important information.
彼得·弗雷特韦尔       英国南极调查局
“海象一年中大部分时间赖以生存的海冰正在迅速缩减,所以它们不得不改变行为,更频繁地到陆地上。几乎可以肯定,这对海象产生了不利影响,但我们不确定到底有多少海象受到了影响。但愿这个项目能够提供这个重要的信息。”
 
Rebecca Morelle, BBC correspondent
We've been taking images of the Earth from space for more than 60 years, but our view has changed dramatically. In the 1980s, satellites could only see objects 30 metres in size, but they quickly improved and a few years later, they could see features ten metres across. 
丽贝卡·莫雷尔       BBC通讯员
“60多年以来,我们一直在从太空中拍摄地球的图像,但视野发生了巨大的变化。在80年代,卫星只能拍到30米大小的物体,但很快就得到了改进,几年以后就可以看清直径10米大小的特征。
 
Today, though, the most advanced imaging satellites can see details down to just 30 centimetres. And this has transformed our view of the natural world.
如今,最先进的成像卫星甚至能看到30厘米的细节。这彻底改变了我们对自然界的看法。”
 
Even at that resolution, counting walruses is still a challenge. So the scouts5 in East Molesey have been drafted in to help. The first job, scouring6 through a search area of 25,000 square kilometres, to find any images that have a walrus in.
即便是在这个清晰度,统计海象数量仍是一项挑战。因此,英格兰东莫西的童子军被征召来帮忙。他们的第一项任务是在2万5千平方公里的搜索区域内认真寻找任何有海象的图像。
 
It's quite hard because there is like, rusty7 barrels and rocks that look really similar.
“这并不容易,因为图像里有生锈的桶和岩石,它们看起来跟海象很相似。”
 
It's kind of a challenge as well because they're all hidden, and you have to try and search for them.
“这项任务挺难的,因为它们都藏了起来,所以得仔细找才行。”
 
But the project is going to need a lot more people to help with the count. 
然而,这个项目需要更多的人来帮忙计数。
 
Rod Downie, Chief Polar Advisor8 WWF
We've loaded up more than 600,000 images onto the 'walrus from space' platform, which you can access through the WWF UK website, and we're calling on at least half a million people to help us search for and then count walrus on the platform. 
罗德·唐尼       世界自然基金会首席极地顾问
“我们已经向 ‘太空观测海象’ 平台上传了60多万张图像,你可以通过世界自然基金会的英国网站访问,我们希望能号召至少50万人来帮我们在这个平台上寻找并统计海象。”
 
The future is uncertain for this icon9 of the Arctic. Their icy home is changing faster than anywhere else on the planet. But now with satellite technology and the help of the public, we should finally find out how many walruses there are, and see how they fare in the years to come.
这种北极的象征动物前途未卜。它们冰冷的家园正以比地球其它地方都要快的速度发生变化。但现在,在卫星技术和公众的帮助下,我们应该总算可以统计出海象的数量,并了解它们未来的生存状况。


点击收听单词发音收听单词发音  

1 walrus hMSzp     
n.海象
参考例句:
  • He is the queer old duck with the knee-length gaiters and walrus mustache.他穿着高及膝盖的皮护腿,留着海象般的八字胡,真是个古怪的老家伙。
  • He seemed hardly to notice the big walrus.他几乎没有注意到那只大海象。
2 walruses 617292179d7a1988bfff06ba7b4f606b     
n.海象( walrus的名词复数 )
参考例句:
  • Walruses have enormous appetites and hunt for food almost constantly. 海象食欲极大,几乎一直在猎取食物。 来自互联网
  • Two Atlantic walruses snuggle on an ice floe near Igloolik, Nunavut, Canada. 加拿大努勒维特伊格卢利克附近,两头大西洋海象在浮冰上相互偎依。 来自互联网
3 detrimental 1l2zx     
adj.损害的,造成伤害的
参考例句:
  • We know that heat treatment is detrimental to milk.我们知道加热对牛奶是不利的。
  • He wouldn't accept that smoking was detrimental to health.他不相信吸烟有害健康。
4 affected TzUzg0     
adj.不自然的,假装的
参考例句:
  • She showed an affected interest in our subject.她假装对我们的课题感到兴趣。
  • His manners are affected.他的态度不自然。
5 scouts e6d47327278af4317aaf05d42afdbe25     
侦察员[机,舰]( scout的名词复数 ); 童子军; 搜索; 童子军成员
参考例句:
  • to join the Scouts 参加童子军
  • The scouts paired off and began to patrol the area. 巡逻人员两个一组,然后开始巡逻这个地区。
6 scouring 02d824effe8b78d21ec133da3651c677     
擦[洗]净,冲刷,洗涤
参考例句:
  • The police are scouring the countryside for the escaped prisoners. 警察正在搜索整个乡村以捉拿逃犯。
  • This is called the scouring train in wool processing. 这被称为羊毛加工中的洗涤系列。
7 rusty hYlxq     
adj.生锈的;锈色的;荒废了的
参考例句:
  • The lock on the door is rusty and won't open.门上的锁锈住了。
  • I haven't practiced my French for months and it's getting rusty.几个月不用,我的法语又荒疏了。
8 advisor JKByk     
n.顾问,指导老师,劝告者
参考例句:
  • They employed me as an advisor.他们聘请我当顾问。
  • The professor is engaged as a technical advisor.这位教授被聘请为技术顾问。
9 icon JbxxB     
n.偶像,崇拜的对象,画像
参考例句:
  • They found an icon in the monastery.他们在修道院中发现了一个圣像。
  • Click on this icon to align or justify text.点击这个图标使文本排齐。
TAG标签: satellite animals images
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