Energy changes associated with wind mixing in the upper ocean by Kenneth L. Denman

Cover of: Energy changes associated with wind mixing in the upper ocean | Kenneth L. Denman

Published by Marine Ecology Laboratory in Dartmouth, N.S .

Written in English

Read online


  • Winds.,
  • Oceanography.

Edition Notes

Book details

Statementby K. L. Denman.
SeriesTechnical report (Fisheries Research Board of Canada) -- no. 380
ContributionsMarine Ecology Laboratory.
LC ClassificationsSH"223"C35"no.380
The Physical Object
Paginationii, 15 p :
Number of Pages15
ID Numbers
Open LibraryOL20961945M

Download Energy changes associated with wind mixing in the upper ocean

On the Loss of Wind-Induced Near-Inertial Energy to Turbulent Mixing in the Upper Ocean XIAOMING ZHAI,* RICHARD J. GREATBATCH, AND CARSTEN EDEN IFM-GEOMAR, Kiel, Germany TOSHIYUKI HIBIYA Department of Earth and Planetary Science, Graduate School of Cited by:   The heat energy eventually re-enters the rest of the Earth system by melting ice shelves, evaporating water, or directly reheating the atmosphere.

Thus, heat energy in the ocean can warm the planet for decades after it was absorbed. If the ocean absorbs more heat than it. Picking the Right Spot: Offshore Wind Energy NOAA Ocean Podcast: Episode 2 How NOAA scientists use marine biogeography—the study of marine species, the geographic distribution of their habitats, and the relationships between living organisms and the environment—to help locate the best sites to place potential future alternative energy sites in the ocean.

The oceans cover 70% of the Earth’s surface, and are critical components of Earth’s climate system. This new edition of Encyclopedia of Ocean Sciences summarizes the breadth of knowledge about them, providing revised, up to date entries as well coverage of new topics in the field.

New and expanded sections include microbial ecology, high latitude systems and the cryosphere, climate and. Wind-driven mixing at intermediate depths in an ice-free Arctic Ocean Ben J. Lincoln1, Tom P. Rippeth1, Yueng-Djern Lenn1, Mary Louise Timmermans2, William J. Williams3, and Sheldon Bacon4 1School of Ocean Sciences, Bangor University, Bangor, UK, 2Department of Geology and Geophysics, Yale University, New Haven, Connecticut, USA, 3Fisheries and Oceans Canada, Institute of Ocean.

Matthias Tomczak, in Encyclopedia of Ocean Sciences (Third Edition), The Subtropical Gyres and the Permanent Thermocline. The permanent or oceanic thermocline is the transition from the upper ocean to the deeper oceanic layers.

It is characterized by a relatively rapid decrease of temperature with depth, with a total temperature drop of some 15°C over its vertical extent, which varies. Wind energy has the potential to provide 10 to 15 percent of future world energy requirements, Energy changes associated with wind mixing in the upper ocean book to Paul Dimotakis, chief technologist at JPL.

If ocean areas with high winds were tapped for wind energy, they could potentially harvest up to to watts of wind power per square meter, according to Liu's research.

the spatial distribution of “mixing hotspots” caused by wind stress fluctuations. It is shown that most of the wind-induced energy fed into the ocean interior is dissipated within the top m depth in the wind-forced area and the energy dissipation rate at low latitudes is very small.

Consequently, the energy supplied to diapycnal mixing. The outer continental shelf of North Carolina supports some of the best conditions for potential offshore wind energy in the southeast United States. However, there are potential impacts to sensitive marine ecosystems from construction of offshore energy facilities.

NOAA and partners are studying the hardbottomrocky reefs that serve as essential habitats for valuable fish species to better. Ocean heat flux and open ocean wind energy. heating of the ocean surface and increased high-latitude precipitation tend to increase the vertical stability of the upper ocean, inhibiting vertical mixing, and thus reducing atmosphere-ocean heat exchange.

These changes are likely to be small relative to the magnitudes present in the background. JGR: Oceans publishes original research articles on the physics, chemistry, biology and geology to the oceans and their interaction with other components of the Earth system. However, the energy flux due to near-inertial waves is stronger in winter, whereas the tidal fluxes are uniform throughout the year.

Both varieties of internal waves can thus significantly affect the space-time distribution of energy available for global mixing. Notes: n/a. Website. It is estimated that wind energy has the potential to provide 10 to 15 percent of future world energy requirements.

But If we can make use of ocean areas with high winds for wind energy, they could potentially generate to watts of energy per square meter. of a wind farm increase the complexity of wake modeling and make it difficult to capture the upper ocean response. Wind turbines are constructed in regions of strong winds where large surface gravity waves, with great potential of affecting both the upper ocean mixing and.

This sedimentary rock is often associated with high energy environments such as glaciers and fast moving waters (e.g. peak flood events and fast rivers/ streams). The grains are rounded to well rounded gravel or pebbles suggesting that the grains were transported for some time. Oct. 9, — Because wind speeds are higher on average over ocean than over land, wind turbines in the open ocean could in theory intercept more than five.

Wind is the flow of gases on a large scale. On the surface of the Earth, wind consists of the bulk movement of outer space, solar wind is the movement of gases or charged particles from the Sun through space, while planetary wind is the outgassing of light chemical elements from a planet's atmosphere into space.

Winds are commonly classified by their spatial scale, their speed, the. Start studying Physical Geography Chapter Oceans, Coastal Systems, and Wind Processes. Learn vocabulary, terms, and more with flashcards, games, and other study tools. The water within a wave in the open ocean is transferring energy from molecule to molecule in simple cyclic undulations.

• Upper-Ocean Mixing Upper ocean mixing is to a large extent caused by breaking, ocean waves. As a consequence there is an energy flux Φoc from atmosphere to ocean. It is given by Φoc =mρau3∗, where m depends on the sea state. Wave breaking and its associated mixing penetrates into the ocean at a scale of the significant wave height HS.

Redistribution of energy available for ocean mixing by long-range propagation of internal waves. and the wind input is an upper bound on energy. The less buoyant, smaller bubbles are generally carried to a greater depth and are easily dispersed by mixing processes in the upper ocean.

Bubbles are mixed into the ocean by small-scale turbulence associated with the ‘wind-driven upper ocean boundary layer’, but also by relatively large and coherent turbulent structures, especially. This book is a fun, informative, and non-threatening way to help any organization understand the power of place, and gives the encouragement to boldly step into a new way of working.

Cheryl’s tale of change management in “Change is on the Wind” is a true testament to the complexities associated with instigating and going through /5(7). Ocean Wave Energy: Background As the wind flows over the ocean, airsea interface- processes transfer some of the wind energy to the water, forming waves which store this energy as potential energy.

Upper Ocean Structure: Wind and Buoyancy-forced Upper Ocean Meghan F. Cronin, NOAA Pacific Marine Environmental Laboratory, Seattle WA USA Janet Sprintall, Scripps Institution of Oceanography, UCSD, La Jolla CA USA For publication in Encyclopedia of Ocean Sciences, J. Steele, S. Thorpe, and K.

Turekian (eds.), Octoberin press. Some reports suggest that wind farms could provide up to 15 percent of the world's future energy needs [source: Jacquot]. Advertisement In latethe first such offshore floating wind farm, a $30 million prototype called WindFloat, was put in place miles ( kilometers) off the coast of Portugal [source: Scientific American ].

On land, the atmosphere limits how much energy wind farms can generate. But over the ocean, wind speeds are 70 percent higher on average, and. 3 EXECUTIVE SUMMARY Further to the evaluation of the development of ocean energy technologies, as reported in the IEA-OES report, Review and Analysis of Ocean Energy Systems, Development and Supporting Policies, [1], additional evaluation of the technologies and their development status was carried out during and File Size: 2MB.

It seems that the energy mix of the future will have to differ from the current suggestions of some visionaries. This is because the jet streams that sweep the upper atmosphere with high winds.

7 Review and analysis of ocean energy systems development and supporting policies Ocean energy resource The oceans contain a huge amount of energy that can theoretically be exploited for generating use-ful energy. Energy from changes in salinity, thermal gradients, tidal currents and from ocean waves.

The set of journals have been ranked according to their SJR and divided into four equal groups, four quartiles. Q1 (green) comprises the quarter of the journals with the highest values, Q2 (yellow) the second highest values, Q3 (orange) the third highest values and Q4 (red) the lowest values.

The Ocean Foundation staff serve on the advisory board for the Collaborative Institute for Oceans, Climate and Security, and The Ocean Foundation is a member of the Ocean & Climate Platform. SinceT.O.F. has provided ongoing technical advice on the Global Environment Facility (GEF) International Waters focal area that enabled the GEF Blue.

Thermohaline circulation (THC) is a part of the large-scale ocean circulation that is driven by global density gradients created by surface heat and freshwater fluxes. The adjective thermohaline derives from thermo-referring to temperature and -haline referring to salt content, factors which together determine the density of sea water.

Wind-driven surface currents (such as the Gulf Stream. Fig. 2 and fig. 3 are nearly the inverse of each other. Where wind speed was enhanced during the Pause, sea surface wind speed diminished, sea surface warmed. In the Pacific Ocean we see that in the upwelling areas (West of California, West of Peru – blue in fig.

2) the wind was indeed stronger (‘red’ in fig. This stronger wind enhanced the upwelling. Energy from Wind and Ocean – a North East Asia study. April Page 5 of 69 1. Summary Renewable energy in NEA – Offshore wind1 Japan, Korea and Taiwan all have ambitious renewable energy goals and offshore wind is an.

Ocean Wind Power Maps Reveal Possible Wind Energy Sources This is a portion of an image of QuikSCAT data that shows wind power density over global oceans for winter (top panel) and summer (lower. These happen to be the three countries that have had the strongest and most stable market incentives for developing wind energy.

WIND ENERGY IS LAGGING IN THE U.S. In the US, wind power has grown 26% per year on average over the last 5 years, but the United States is. Thermohaline Ocean Circulation Stefan Rahmstorf The thermohaline circulation is that part of the ocean circulation which is driven by fluxes of heat and freshwater across the sea surface and subsequent interior mixing of heat and salt.

The term thus refers to a driving by: On seasonal time scales, the upper North Atlantic Ocean varies primarily in response to changes in the surface winds, air-sea heat exchanges and freshwater fluxes associated with NAO variations [Cayan, a,b].

This does not mean, however, that the extratropical interaction is only one-way. The dominant influence of the ocean on the overlying. Wind stress curl anomalies in the central/east Pacific drive thermocline variability that propagates to the west Pacific via baroclinic Rossby waves and influences SST by vertical mixing and the change in strength and position of the ocean gyres.

Atmospheric changes associated with the El Niño-Southern Oscillation (ENSO) also influence North. Get Textbooks on Google Play. Rent and save from the world's largest eBookstore.

Read, highlight, and take notes, across web, tablet, and phone. Latent heat is the energy associated with changing the "phase" of a substance, that is, changing the state from gas to fluid or from fluid to solid, or the reverse.

The enormous amounts of latent heat involved in evaporation and precipitation of water makes the hydrologic cycle a central player in the operation of the climate machine.2 Between about m and m depth, the temperature declines rapidly throughout much of the ocean.

This region of steep temperature gradient is known as the permanent thermocline, beneath which, from about m to the ocean floor, there is virtually no File Size: 1MB.The Atlantic coast states are dependent on fossil fuels, which pollute our air, put our health at risk, and contribute to global warming.

In response, states in the region are moving toward an energy system powered by clean, renewable sources: Atlantic states now generate enough wind and solar energy to power nearly 2 million homes, 19 times more than just a decade ago.

38840 views Thursday, November 12, 2020