搜索结果: 136-150 共查到“国际动态 海洋科学”相关记录924条 . 查询时间(3.823 秒)
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Greenland Ice Sheet meltwater can flow in winter, too(图)
Greenland Ice Sheet meltwater flow winter
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2020/4/17
Liquid meltwater can sometimes flow deep below the Greenland Ice Sheet in winter, not just in summer, according to National Science Foundation-funded research published in the American Geophysica...
哥斯达黎加放置首个海洋科研浮标监控设备
哥斯达黎加 海洋 科研浮标 监控设备
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2020/4/16
据哥斯达黎加大学网站3月9日报道,该大学将在哥中部太平洋沿岸城市克波斯近海6海里处放置一套价值约10万美元的浮标设备用于监控海洋气候。该套设备由挪威生产,在美国组装,可对风速、温度、气压、湿度和辐射等气象参数进行测量。同时,浮标上的传感器可记录全向浪高、浪涌时间、洋面温度及洋流温度等数据。
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NG:早期地球可能是一个水的世界(图)
NG 地球 水 海洋化学沉积物
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2020/4/29
海洋化学沉积物和蚀变洋壳记录了海洋的演变历史。过去的研究发现,海洋化学沉积物的18O/16O比值随时间推移而呈增加趋势,但人们对这一规律有不同的解读:一种可能是地球早期的海洋可能要比现代更为温暖(前提是地球早期海洋的氧同位素组成与今天相似);也有可能是地球早期水岩反应的性质与现代地球有所不同,从而导致海洋氧同位素组成的系统演变。一般而言,海底热液喷出时,高温水岩反应会使热液和海水更为富集18O同位...
北极海底生物会受人造光影响
北极 海底生物 人造光 影响
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2020/4/13
根据英国《通讯·生物学》杂志近日发表的一篇论文,北极海底200米处的海洋生物,会受到船只上人造光的干扰。这项发现意味着在极夜期间,人造光会影响种群调查,进而对可持续管理工作产生影响。
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New app for personal tracking of social distancing in the Memphis area(图)
New app personal tracking social distancing Memphis area
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2020/4/17
A new study by National Science Foundation-funded researchers at the Woods Hole Oceanographic Institution and their colleagues found that freshwater runoff from rivers and continental s...
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Freshwater runoff from rivers brings more carbon, nutrients to Arctic Ocean(图)
Freshwater runoff rivers carbon nutrients Arctic Ocean
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2020/4/17
A new study by National Science Foundation-funded researchers at the Woods Hole Oceanographic Institution and their colleagues found that freshwater runoff from rivers and continental s...
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Nature:近千年印度洋偶极子变化规律(图)
Nature 印度洋 偶极子 变化规律
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2020/4/29
印度洋偶极子(Indian Ocean Dipole, IOD)是指印度洋西部和东部海表温度差,通过海气耦合作用,对印度洋盆周围地区气候和环境产生重要影响。简单的类比,可以把IOD看作是印度洋的厄尔尼诺-拉尼娜现象。Saji et al.(1999)发现并定义了IOD事件(图1):当正IOD(positive IOD, pIOD)事件发生时,西印度洋海温偏高,东印度洋海温偏低,会导致印太暖池海温偏...
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Scientists use underwater microphones to study calving Arctic glacier(图)
Scientists microphones calving Arctic glacier
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2020/4/10
Researchers at the Scripps Institution of Oceanography are eavesdropping on an Arctic glacier in the name of science. In a new study, scientists Oskar Glowacki and Grant Deane describe a method of mea...
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新基因工具有望揭开海洋微生物之谜(图)
新基因工具 海洋微生物
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2020/4/9
全球50%的氧气都是由海洋微生物产生。然而,这些微小的海洋生物在很大程度上仍然是科学界的一个谜。4月6日发表在《自然—方法学》的研究称,在全球100多名研究人员的努力下,科学家们找到了一种通过细胞和基因技术解开部分海洋生物细胞基因组的方法。未参与该研究的法国索邦大学国家研究机构CNRS海洋生物学家Angela Falciatore表示,这项研究“将推动浮游生物生物学的进步”。她说,这些进展可能有助...
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Coastal pollution reduces genetic diversity of corals, reef resilience(图)
Coastal pollution genetic diversity coral reef resilience
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2020/4/10
A new study published in the journal PeerJ by researchers at the University of Hawaii found that human-induced environmental stressors have a large effect on the genetic compositio...
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Deep-sea worms and bacteria team up to harvest methane(图)
Deep-sea worms bacteria team harvest methane
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2020/4/10
Scientists at Caltech and Occidental College have discovered a methane-fueled symbiosis between worms and bacteria at the bottom of the sea, shedding new light on the ecology of deep-sea env...
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Coral tells a tale of El Niño's past(图)
Coral tells a tale El Niñ o past
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2020/4/3
There's no longer a need to guess what ocean temperatures were like in the remote tropical Pacific hundreds of years ago. The ancient coral that lived there tells the tale, say National Science F...
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Hidden source of carbon found on the Arctic coast(图)
Hidden source carbon found Arctic coast
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2020/3/27
A previously unknown, significant source of carbon discovered in the Arctic has National Science Foundation-funded scientists surprised -- and concerned about what it may mean in an era of climat...
拖网渔船破坏海底微生物
拖网渔船 海底微生物
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2020/3/25
沿着海底用拖网捕捞海鲜的渔船会不加选择地伤害海洋生物,并且破坏它们的栖息地。现在,一项新的研究表明,拖网渔船还可能破坏海底微生物清除沿海水域中过量营养物质的能力,从而加剧海洋污染。“这是第一篇研究拖网捕捞的实际生物地球化学效应的论文。”没有参与该研究的美国加州大学河畔分校海洋生物地球化学家Sebastiaan Van de Velde说,“整个研究的角度非常新颖。”
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Indian Ocean phenomenon spells climate trouble for Australia(图)
Indian Ocean phenomenon climate trouble Australia
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2020/3/20
New research by National Science Foundation-funded scientists at the Woods Hole Oceanographic Institution and colleagues has found a marked change in the Indian Ocean's surface temperatures. The chang...