搜索结果: 16-30 共查到“知识库 海洋化学”相关记录247条 . 查询时间(2.419 秒)
Exploring the Submarine Ring of Fire: Mariana Arc - Western Pacific
Western Pacific Exploring the Submarine Ring
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2015/7/22
Sampling an erupting volcano at 550-m depth, discovering roiling pools of liquid sulfur at 400-m depth, watching tropical fish swimming amid fields of black smoker vents, and encountering a blizzard o...
What Corals are Dying to Tell Us About CO2 and Ocean Acidification
Ocean Acidification CO2
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2015/7/22
Emissions of carbon dioxide are causing the oceans to become more acidic. Recent experiments show that this ocean acidification threatens many ocean ecosystems. The ancient past may provide a cautiona...
Women in Oceanography: 20 Years of Progress, Change, and Challenge
Progress Change Challenge
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2015/7/21
I may have a slightly casual view on the changing role of women in ocean sciences. When I went to work at the National Science Foundation (NSF) in 1979, my first two supervisors were women. And when I...
Celebrating 20 Years of The Oceanography Society: An Introduction to the Special Issue
Oceanography Society Special Issue
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2015/7/21
The Challenger Expedition set sail on December 21, 1872, not quite a century and a half ago. Today we describe that expedition as the beginnings of our science. The introductory paragraph of the 1895 ...
Reputation and coalitions in medieval trade:evidence on the maghribitraders
maghribitraders Reputation and coalitions
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2015/7/20
Reputation and coalitions in medieval trade:evidence on the maghribitraders。
This special issue of Oceanography takes a look at a variety of undersea natural hazards—hazards resulting from natural processes such as earthquakes, tsunamis, volcanic eruptions, and landslides. The...
Changing Ocean Chemistry:An Introduction to This Special Issue
Changing Ocean Chemistry Special Issue
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2015/7/17
The modern industrialized and urbanized world, dubbed the "Anthropocene" by Paul Crutzen (2006), includes the past 250 years of multiple human impacts. Nobel Prize winner and atmospheric chemist Crutz...
GEOTRACES is an international study of the marine biogeochemical cycles of trace elements and their isotopes (TEIs), designed by marine geochemists to accelerate TEI research under a global program. C...
The toxic metal mercury is present only at trace levels in the ocean, but it accumulates in fish at concentrations high enough to pose a threat to human and environmental health. Human activity has dr...
Changing pH in the Surface Ocean
Changing pH Surface Ocean
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2015/7/17
In 1896, Arrhenius provided the first roughly quantitative sense of the plausible magnitude of human-induced changes in the concentration of CO2 in the atmosphere. Since then, all chemists could be aw...
In Praise of Marine Chemists
in Praise Marine Chemists
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2015/7/17
Shortly after the birth of the science of analytical chemistry, over 100 years ago, the art of measuring the chemicals in the sea began with the arduous task of analyzing the six major salts in sea-wa...
Deep Ocean Carbonate Chemistry and Glacial-Interglacial Atmospheric CO2 Changes
Deep Ocean Carbonate Chemistry Glacial-Interglacial Atmospheric CO2
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2015/7/17
Changes in deep ocean carbonate chemistry have profound implications for glacial-interglacial atmospheric CO2 changes. Here, we review deep ocean carbonate ion concentration ([CO32–]) changes based on...
A Time-Series View of Changing Ocean Chemistry Due to Ocean Uptake of Anthropogenic CO2 and Ocean Acidification
Time-Series View Changing Ocean Chemistry Due Ocean Uptake Anthropogenic CO2 Ocean Acidification
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2015/7/17
Sustained observations provide critically needed data and understanding not only about ocean warming and water cycle reorganization (e.g., salinity changes), ocean eutrophication, and ocean deoxygenat...
Persistent Organic Pollutants (POPs),Polycyclic Aromatic Hydrocarbons (PAHs),and Plastics:Examples of the Status, Trend,and Cycling of Organic Chemicals of Environmental Concern in the Ocean
Persistent Organic Pollutants (POPs) Polycyclic Aromatic Hydrocarbons (PAHs) Plastics:Examples of the Status Trend Cycling Organic Chemicals Environmental Concern in the Ocean
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2015/7/17
Four decades of research have provided a reasonable understanding of the outline of the biogeochemical cycles of persistent organic pollutants (POPs) and polycyclic aromatic hydrocarbons (PAHs) in coa...
Organic Chemicals of Environmental Concern:Water Sampling and Analytical Challenges
Organic Chemicals Environmental Concern Water Sampling Analytical Challenges
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2015/7/17
A detailed understanding of the biogeochemical cycles of organic chemicals of environmental concern (OCEC) in the ocean requires measurement of their concentrations in the water column (Farrington and...