Author: Publisher:
ISBN:
Category :
Languages : en
Pages : 381
Book Description
Interpretation of Equatorial Current Meter Data as Internal Waves
Author: Interpretation of Equatorial Current Meter Data as Internal Waves
Author: Martin Benno BlumenthalPublisher:
ISBN:
Category : Internal waves
Languages : en
Pages : 860
Book Description
Garrett and Munk use linear dynamics to synthesize frequency-wavenumber energy spectra for internal waves (GM72, GM75, GM79). The GM internal wave models are horizontally isotropic, vertically symmetric, purely propagating, and universal in both time and space. This set of properties effectively eliminates all the interesting physics, since such models do not allow localized sources and sinks of energy. Thus an important step in understanding internal wave dynamics is to make measurements of deviations from the simple GM models. This thesis continues the search for deviations from the GM models. It has three advantages over earlier work: extensive data from an equatorial region, long time series (2 years), and relatively sophisticated linear internal wave models. Since the GM models are based on mid-latitude data, having data from an equatorial region which has a strong mean current system offers an opportunity to examine a region with a distinctly different basic state. The longer time series mean there is a larger statistical ensemble of realizations, making it possible to detect smaller internal wave signals. The internal wave models include several important extensions to the GM models: horizontal anisotropy and vertical asymmetry, resolution between standing modes and propagating waves, general vertical structure, and kinematic effects of mean shear flow. Also investigated are the effects of scattering on internal waves, effects that are especially strong on the equator because the buoyancy frequency variability is a factor of ten higher than at mid-latitudes. In the high frequency internal wave field considered (frequencies between .125 cph and .458 cph), several features are found that are not included in the GM models. Both the kinematic effects of a mean shear flow and the phase-locking that distinguishes standing modes from propagating waves are observed. There is a seasonal dependence in energy level of roughly 10% of the mean level. At times the wave field is zonally and vertically asymmetric, with resulting energy fluxes that are a small (4% to 10%) fraction of the maximum energy flux the internal wave field could support. The fluxes are, however, as big as many of the postulated sources of energy for the internal wave field.
Scientific and Technical Aerospace Reports
Author: Government Reports Annual Index
Author: Publisher:
ISBN:
Category : Government reports announcements & index
Languages : en
Pages : 1068
Book Description
Government Reports Annual Index: Keyword A-L
Author: Publisher:
ISBN:
Category : Government reports announcements & index
Languages : en
Pages : 1016
Book Description
Ocean Circulation and Climate
Author: Publisher: Elsevier
ISBN: 0080491979
Category : Business & Economics
Languages : en
Pages : 737
Book Description
The book represents all the knowledge we currently have on ocean circulation. It presents an up-to-date summary of the state of the science relating to the role of the oceans in the physical climate system.The book is structured to guide the reader through the wide range of World Ocean Circulation Experiment (WOCE) science in a consistent way. Cross-references between contributors have been added, and the book has a comprehensive index and unified reference list.The book is simple to read, at the undergraduate level. It was written by the best scientists in the world who have collaborated to carry out years of experiments to better understand ocean circulation.
Annual Report
Author: Woods Hole Oceanographic InstitutionPublisher:
ISBN:
Category : Marine biology
Languages : en
Pages : 456
Book Description
Aquatic Sciences and Fisheries Abstracts
Author: Journal of Physical Oceanography
Author: Vertical Mixing in the Equatorial Undercurrent
Author: James Henry JonesPublisher:
ISBN:
Category : Oceanic mixing
Languages : en
Pages : 170
Book Description