搜索结果: 121-135 共查到“知识库 理学 ocean”相关记录1416条 . 查询时间(0.067 秒)
In the words of Paul Simon, "these are the days of miracles and wonder."1 We live in a time when any given cruise can give rise to whole new concepts and observations that enhance understanding. Many ...
110 Misconceptions About the Ocean
semester Ocean
2015/7/22
Misconceptions impede student learning, especially in science. As teachers of earth science, we would be wise to identify misconceptions whenever possible before launching new topics in our oceanograp...
Exploring the World Ocean
Ocean World
2015/7/22
A college-level introductory science textbook should have three purposes, two of which are often underserved. First, it should present large quantities of information, which results in a text that is ...
Numerical ocean models have become increasingly valuable tools as we strive to understand the nature of the ocean's dynamics. They have progressed from the necessarily crude and idealized tools of dec...
Using Narwhals as Ocean-Observing Platforms in the High Arctic
igh Arctic Ocean-Observing Platforms
2015/7/22
Offshore Arctic waters are the most remote and unexplored areas of the Northern Hemisphere. Generally covered by sea ice for most of the year, these waters are characterized by darkness for up to six ...
Mid-Ocean Ridge Exploration with an Autonomous Underwater Vehicle
Autonomous Underwater Vehicle Ocean
2015/7/22
Human-occupied submersibles, towed vehicles, and tethered remotely operated vehicles (ROVs) have traditionally been used to study the deep seafloor. In recent years, however, autonomous underwater veh...
Larval Transport and Dispersal in the Coastal Ocean and Consequences for Population Connectivity
Larval Transport Dispersal Coastal Ocean Consequences Population Connectivity
2015/7/22
Many marine species have small, pelagic early life stages. For those species, knowledge of population connectivity requires understanding the origin and trajectories of dispersing eggs and larvae amon...
The time is August 2, 2007, and a blue, white, and red titanium flag rests on the soil of an alien world. The explorers who planted it, tucked safely within the confines of their twin vehicles, are sa...
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...
Energy is the most important requirement for life. It can be acquired by harvesting electrons flowing naturally from reduced to oxidized inorganic compounds (lithotrophy) or organic compounds (organot...
Microbial life thrives in virtually every habitat imaginable in the ocean, from the scalding temperatures found at hydrothermal vents, to frigid environments in and under polar sea ice, to high-pressu...
Marine Environmental Genomics: Unlocking the Ocean's Secrets
Ocean's Secrets Environmental Genomics
2015/7/22
In 1944, Oswald Avery, Colin MacLeod, and Maclyn McCarty demonstrated that DNA was the chemical basis of heredity and the genetic cornerstone of life on Earth (Avery et al., 1944). Some 30 years later...
Coastal Ocean Processes Program:Advancing Interdisciplinary Research and Technology Development
Coastal Ocean Processes Program Interdisciplinary Research Technology Development
2015/7/22
Coastal ecosystems provide major research challenges because of the diversity of their environments and habitats and their high spatial and temporal variability. The magnitude of mass exchanges and or...
Varied observations over Oregon's continental shelf illustrate the beauty and complexity of geophysical flows in coastal waters. Rapid, creative, and sometimes fortuitous sampling from ships and moori...
Numerical modeling of coastal ocean circulation underwent a sea change during the CoOP years. In the late 1980s and early 1990s, when CoOP was conceived and implemented, most of the focus in modeling ...