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科学家从太空中统计鲸鱼的数量
添加时间:2018-11-07 08:45:11 浏览次数: 作者:未知
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  • K scientists have demonstrated the practicality of counting whales from space.

    英国科学家日前证明了从太空计数鲸鱼的实用性。

    The researchers, from the British Antarctic Survey (BAS), have been using the highest resolution satellite pictures available.

    来自英国南极调查局的研究人员一直在使用最高分辨率的卫星图片计数鲸鱼。

    Even when taken from 620km up, this imagery is sharp enough to capture the distinctive1 shapes of different species.

    即使从620公里以上拍摄,这个图像也足够清晰,可以捕捉到不同物种的独特形状。

    The team will soon conduct an audit2 of fin3 whales in the Mediterranean4.

    该小组很快将会对地中海的长须鲸进行统计。

    The first-of-its-kind assessment5 will be partly automated6 by employing a computer program to search through the satellite data.

    这次前所未有的计数的一部分将由计算机程序搜索卫星数据完成。

    Waters north of Corsica, known as the Ligurian Sea, are a protected area for cetaceans, and the regional authorities want to understand better the animals' movements in relation to shipping7 to try to avoid collisions.

    科西嘉岛北部的水域,被称为利古里亚海,是鲸类动物的保护区,地区当局希望更好地了解这些动物在船只来往时作出的活动反应,从而避免碰撞的发生。

    Previous studies have played with the idea of spotting whales from orbit, but with limited success.

    以前的研究提出过从卫星轨道上计数鲸鱼的想法,但成效有限。

    This new approach from BAS has drawn8 on imagery from the WorldView-3 spacecraft9 operated by the American company DigitalGloble.

    英国南极调查局的这种新方法,使用了美国公司DigitalGloble运营的WorldView-3航天器来绘制图像。

    WorldView-3 is able to discern things at the Earth's surface as small as 31cm across. Only restricted military systems see finer detail.

    WorldView-3能够识别地球表面小到31厘米的东西。只有受限制的军事系统才能看到更精细的图像。

    "Satellites have improved so much with their spatial10 resolution," explained Hannah Cubaynes, who is affiliated11 to both Cambridge University and BAS. "For the first time we've been able to see features that are truly distinctive of whales, such as their flippers and flukes."

    剑桥大学和英国南极调查局的研究员汉纳·库比内斯解释道:“卫星的空间分辨率得到了很大的提升。我们第一次能够看到真正属于鲸鱼的独特特征,例如鳍状肢和身上的吸虫。”

     12级    双语 


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    1 distinctive [dɪˈstɪŋktɪv] Es5xr   第8级
    adj.特别的,有特色的,与众不同的
    参考例句:
    • She has a very distinctive way of walking. 她走路的样子与别人很不相同。
    • This bird has several distinctive features. 这个鸟具有几种突出的特征。
    2 audit [ˈɔ:dɪt] wuGzw   第7级
    vt.审计;查帐;核对;旁听;vi.审计;[审计] 查帐;n.审计;[审计] 查帐
    参考例句:
    • Each year they audit our accounts and certify them as being true and fair. 他们每年对我们进行账务审核,以确保其真实无误。
    • As usual, the yearly audit will take place in December. 跟往常一样,年度审计将在十二月份进行。
    3 fin [fɪn] qkexO   第10级
    n.鳍;(飞机的)安定翼
    参考例句:
    • They swim using a small fin on their back. 它们用背上的小鳍游动。
    • The aircraft has a long tail fin. 那架飞机有一个长长的尾翼。
    4 Mediterranean [ˌmedɪtəˈreɪniən] ezuzT   第7级
    adj.地中海的;地中海沿岸的
    参考例句:
    • The houses are Mediterranean in character. 这些房子都属地中海风格。
    • Gibraltar is the key to the Mediterranean. 直布罗陀是地中海的要冲。
    5 assessment [əˈsesmənt] vO7yu   第7级
    n.评价;评估;对财产的估价,被估定的金额
    参考例句:
    • This is a very perceptive assessment of the situation. 这是一个对该情况的极富洞察力的评价。
    • What is your assessment of the situation? 你对时局的看法如何?
    6 automated ['ɔ:təmeitid] fybzf9   第8级
    a.自动化的
    参考例句:
    • The entire manufacturing process has been automated. 整个生产过程已自动化。
    • Automated Highway System (AHS) is recently regarded as one subsystem of Intelligent Transport System (ITS). 近年来自动公路系统(Automated Highway System,AHS),作为智能运输系统的子系统之一越来越受到重视。
    7 shipping [ˈʃɪpɪŋ] WESyg   第8级
    n.船运(发货,运输,乘船)
    参考例句:
    • We struck a bargain with an American shipping firm. 我们和一家美国船运公司谈成了一笔生意。
    • There's a shipping charge of £5 added to the price. 价格之外另加五英镑运输费。
    8 drawn [drɔ:n] MuXzIi   第11级
    v.(draw的过去式)拖,拉,拔出;adj.憔悴的,紧张的
    参考例句:
    • All the characters in the story are drawn from life. 故事中的所有人物都取材于生活。
    • Her gaze was drawn irresistibly to the scene outside. 她的目光禁不住被外面的风景所吸引。
    9 spacecraft [ˈspeɪskrɑ:ft] TwowV   第7级
    n.太空船,宇宙飞船
    参考例句:
    • There're three astronauts in the spacecraft. 在这艘宇宙飞船里有三名宇航员。
    • The spacecraft rounded the moon. 宇宙飞船环绕月球飞行。
    10 spatial [ˈspeɪʃl] gvcww   第7级
    adj.空间的,占据空间的
    参考例句:
    • This part of brain judges the spatial relationship between objects. 大脑的这部分判断物体间的空间关系。
    • They said that time is the feeling of spatial displacement. 他们说时间是空间位移的感觉。
    11 affiliated [əˈfɪlieɪtɪd] 78057fb733c9c93ffbdc5f0ed15ef458   第7级
    adj. 附属的, 有关连的
    参考例句:
    • The hospital is affiliated with the local university. 这家医院附属于当地大学。
    • All affiliated members can vote. 所有隶属成员都有投票权。

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