搜索结果: 91-105 共查到“国际动态 海洋科学”相关记录924条 . 查询时间(0.278 秒)
英研究首次考察大西洋内部微塑料含量：远远高于此前预期
英 大西洋 微塑料
<
2020/8/19
微塑料是指所有尺寸小于5毫米的塑料纤维、颗粒或薄膜，广泛分布于海洋和陆地等各个环境介质中。微塑料可被生物吸收积累，产生生态风险和健康风险。然而在海洋等偏远地区，仍然缺乏微塑料积累系统的可靠量化数据，难以评估微塑料积累造成的生态和环境危害。当地时间8月18日，国际学术期刊《自然-通讯》发表的一项研究称，大西洋海面以下200米约有1200万吨至2100万吨微塑料。研究人员仅对大西洋中三种最常见的塑料进...
Go into the polar night
polar night
<
2020/8/27
Arctic sea ice groans and creaks as a massive icebreaker slowly churns through frozen waters. Scientists on an ice floe call out to each other in the dark. A chainsaw buzzes as someone cuts through th...
Sea level rise could make rivers more likely to jump course（图）
Sea level rise make rivers likely jump course
<
2020/8/21
Sea level rise is poised to shift the way rivers naturally chart their paths to the shoreline. The nature of that change will depend on both the rate of rise and the sediment load carried by the river...
新技术能快速将海水变成饮用水
新技术 海水 饮用水
<
2020/8/18
据英国《自然·可持续发展》杂志近日发表的材料学最新研究，澳大利亚莫纳什大学日前宣布，该校研究人员和国际同行开发出一种新型咸水淡化技术，可以利用特殊材料快速将海水等咸水转化成饮用水，并在阳光照射后重复使用相关材料。从海水中取得淡水的过程，即所谓海水淡化。目前世界上许多国家超百个科研机构，都在进行着海水淡化相关研究，有数百种不同结构和不同容量的海水淡化设施在工作，一般所用的海水淡化方法有海水冻结法、电...
New method lets scientists peer deeper into the ocean（图）
New method scientists peer deeper ocean
<
2020/8/14
Researchers at Old Dominion University and the Bigelow Laboratory for Ocean Sciences have discovered a new way of seeing into the sea's depths, an approach that allows them to detect algae blooms and ...
Florida Current is weaker now than in the past century（图）
Florida Current weaker now past century
<
2020/8/14
A key component of the Gulf Stream has markedly slowed over the past century, influencing Earth's climate -- that's the conclusion of a new research paper in Nature Communications.The U.S. N...
As humans continue to send large quantities of carbon into the atmosphere, much of that carbon is absorbed by the oceans. Now researchers from the University of Connecticut and other institu...
海洋热浪会造成生态系统“重新分布”
海洋热浪 生态系统 重新分布
<
2020/8/6
美国国家海洋和大气管理局（NOAA）的科学家衡量了海洋热浪造成的生态系统破坏，结果发现，海洋热浪会造成热位移，位移距离从数十公里到数千公里不等。而这种位移，代表了生物为躲避潜在的高温胁迫可能需要移动的距离。该结果开辟了新的研究方向，有助理解反常的海水变暖对于海洋物种的潜在影响。相关研究报告发表于5日的《自然》杂志上。
A team at the Marine Biological Laboratory in Woods Hole, Massachusetts, has achieved the first gene knockout in a cephalopod using the squid Doryteuthis pealeii, an important research ...
激光雷达成探测海洋更深处的“眼睛”
激光雷达 海洋探测
<
2020/8/5
日前，美国毕格罗海洋科学实验室与欧道明大学共同在《应用光学》发表的最新研究成果表明，他们用激光雷达来探测藻类和测量相关指标，能探测的海洋深度最高可达卫星遥感测量的3倍。据毕格罗海洋科学实验室高级研究员巴尼·巴尔克称，传统的卫星遥感测量可以收集海洋上层的各种信息，但是这种方式最深只能“看”到海下10米。而采用激光雷达，可以探测到海洋更深处的相关情况，就像“拥有了一双新的眼睛”。
Banks of Antarctica's Ross Sea offer rich food source for emperor penguins（图）
Banks Antarctica Ross Sea rich food source emperor penguins
<
2020/8/14
A new U.S. National Science Foundation-supported study provides some of the most comprehensive evidence to date of the lengths penguins will go for a meal. The results were reported in the journa...
Changing seawater hints at future for adhesives from ocean species（图）
Changing seawater future adhesives ocean species
<
2020/8/14
Animals such as mussels are able to stick to their environment -- literally. A scientist who studies ocean species to develop adhesives is now looking at the changing chemistry of seawater to see how ...
随着北极海冰每十年进一步退缩、融化速度加快，科学家正竞相了解这个世界上最偏远、最严酷地区之一的脆弱性。7月29日发表在 Cell Press细胞出版社旗下期刊Heliyon上的一项研究详细描述了2018年9月北极发生的变化。这年夏天，近1000万千米的北极海冰消失。他们的发现概述了在卫星时代的40年里不同时间段海冰是如何消退的，并显示了夏季海冰的大规模减少是如何与遥远热带的全球大气进程相联系的。
Deep sea microbes dormant for 100 million years are hungry and ready to multiply（图）
Deep sea microbes dormant 100 million years hungry ready to multiply
<
2020/7/31
For decades, scientists have gathered ancient sediment samples from below the seafloor to better understand past climates, plate tectonics and the deep marine ecosystem. In a new study published in...