搜索结果: 1-15 共查到“国际动态 海洋地球物理学”相关记录34条 . 查询时间(1.633 秒)
Small eddies play a big role in feeding ocean microbes（图）
小漩涡 海洋微生物 亚热带环流
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2023/6/9
Subtropical gyres are enormous rotating ocean currents that generate sustained circulations in the Earth’s subtropical regions just to the north and south of the equator. These gyres are slow-moving w...
新西兰国家水事和大气研究所日前发布的一份研究显示，在新西兰周边海域采样的鱼类中，不仅鱼类内脏中有微塑料，甚至肌肉组织中也发现了微塑料成分。这项研究显示，鱼类吞食微塑料后，肠道会出现明显的炎症，影响鱼类消化系统等功能，最终可能影响其生存，损害程度随着微塑料浓度的增加而增加。
Sea ice kept oxygen from reaching deep ocean during last ice age, study finds（图）
Sea ice oxygen reaching deep ocean during ice age
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2021/3/5
Extensive sea ice covered the world's oceans during the last ice age, preventing oxygen from penetrating into deep ocean waters and complicating the relationship between oxygen and carbon, a new study...
How hot is too hot for life deep below the ocean floor?（图）
How hot life deep below ocean floor
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2020/12/18
At what depth be-neath the seabed does it be-come so hot that mi-cro-bial life is no longer possible?An ex-ped-i-tion by In-ter-na-tional Ocean Dis-cov-ery Pro-gram scientists has provided new insight...
Fish carcasses deliver toxic mercury pollution to the deepest ocean trenches（图）
Fish carcasses deliver toxic mercury pollution deepest ocean trenches
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2020/12/11
The sinking carcasses of fish from near-surface waters deliver toxic mercury pollution to the most remote and inaccessible parts of the world's oceans, including the deepest spot of them all: the 36,0...
Seagrasses restored to Virginia bays are flourishing（图）
Seagrasses restored Virginia bays flourishing
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2020/10/23
In the late 1920s, a pathogen began killing seagrasses in Virginia's seaside bays. A 1933 hurricane finished them off. For more than a half-century, the bay bottoms were muddy and barren. Gone were th...
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...
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...
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...
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...
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...
Robotic underwater vehicle snaps first images of seafloor beneath Antarctica's Thwaites Glacier（图）
Robotic underwater vehicle snaps first images seafloor beneath Antarctica Thwaites Glacier
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2020/2/20
During the first study of the ocean floor beneath Antarctica’s Thwaites Glacier, scientists took images of the glacier's foundations. Thwaites now accounts for about 4% of global sea level rise, and r...
Reframing the dangers Antarctica's meltwater ponds pose to ice shelves and sea level
dangers Antarctica meltwater ponds pose ice shelves sea level
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2019/11/15
Dangers to ancient Antarctic ice portend a future of rapidly rising seas, but a new study, partially funded by NSF, may relieve one nagging fear. Meltwater ponds fracturing the ice below them may not ...
Antarctic ice cliffs may not contribute to ice-sheet instability as much as predicted（图）
Antarctic ice cliff contribute ice-sheet instability
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2019/11/5
Antarctica's ice sheet spans close to twice the area of the contiguous United States. Its land boundary is buttressed by massive, floating ice shelves extending hundreds of miles out over the frigid w...
Study uncovers magnetic memory of European glass eels（图）
magnetic memory European glass eels
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2019/11/5
A new study led by NSF-funded researchers at the University of Miami Rosenstiel School of Marine and Atmospheric Science and the Institute of Marine Research in Norway found that European glass eels u...