搜索结果: 151-165 共查到“海洋化学”相关记录515条 . 查询时间(0.403 秒)
The Impact of Quaternary Global Changes on Strata Formation: Exploration of the Shelf Edge in the Northwest Mediterranean Sea
Strata Formation Northwest Mediterranean Sea
<
2015/7/29
Paleoceanographic and marine paleoclimatic investigations commonly use deep, open-ocean sediments or coral reefs to establish a continuous record of past global environmental changes because they both...
Introduction to Ocean Remote Sensing by Seelye Martin is an excellent textbook for teaching remote sensing of the oceans at the beginning of the 21st century. Since 1987, Dr. Martin has taught remote ...
Species and δ15N Signatures of Nitrogen Transformations in the Suboxic Zone of the Black Sea
Species and δ15N Signatures Nitrogen Transformations Suboxic Zone of the Black Sea
<
2015/7/27
Nitrogen is an essential nutrient for living systems in the ocean; it is a component of proteins, chlorophyll, and nucleic acids. In the oceans, nitrogen exists as a dissolved gas (N2), dissolved orga...
Seasonal Changes in the Hydrochemical Structure of the Black Sea Redox Zone
Seasonal Changes Hydrochemical Structure Black Sea Redox Zone
<
2015/7/27
The Black Sea is the world's largest marine anoxic basin. The Black Sea's water below a depth of ~100 m is enriched with hydrogen sulfide that formed after the intrusion of seawater as a result of sea...
Oceanography is a multidisciplinary field offering a range of career opportunities for the diversified workforce that exists today. Professionals conducting research or teaching about the oceans are e...
RIPPLE MARKS—The Story Behind the Story
Story RIPPLE MARKS
<
2015/7/23
The red light district is located not on a seedy side street in a major city, but, oceanographers have discovered, in the deep sea. Animals that live in the sea's abyss produce and perceive red light,...
An Overview of Fixed Passive Acoustic Observation Methods for Cetaceans
Cetaceans Acoustic Observation Methods
<
2015/7/22
Cetaceans are increasingly being included as top trophic-level predators in models of ecosystem dynamics (Baumgartner and Mate, 2003; Tynan, 2004; Redfern et al., 2006). Traditional visual survey meth...
Exploring the Submarine Ring of Fire: Mariana Arc - Western Pacific
Western Pacific Exploring the Submarine Ring
<
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
<
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
<
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
<
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
<
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
<
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...