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Author:
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ISBN:
Category :
Languages : en
Pages : 4
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Book Description
The South China Sea (SCS), Yellow/East China Sea (YES), and Japan/East Sea (JES) are major East Asian marginal seas (EAMS). The complex topography includes the broad shallows of the Sunda Shelf in the south/southwest of SCS; the continental shelf of the Asian landmass in the north, extending from the Gulf of Tonkin to the YES; deep, elliptical shaped SCS and JES basins, and numerous reef islands and underwater plateaus scattered throughout the basins. The shelf that extends from the Gulf of Tonkin to the YES is consistently near 70 meters deep, and averages 150 km in width. The EAMS is subjected to a seasonal monsoon system. From April to August, the weaker southwesterly summer monsoon winds result in a wind stress of just over 0.1 N/sq m. From November to March, the stronger northeasterly winter monsoon winds correspond to a maximum wind stress of nearly 0.3 N/sq m. Recent observational studies show that the EAMS is energetic and has multi-eddy structure. For example, the eddy spatial and temporal scales in the YES were identified using the Navy's Master Oceanographic Observational Data Set (MOODS) during 1929-1991. The fundamental scientific issues are as follows: What are the dynamical balances controlling mesoscale eddy variations in EAMS? What are the effects of surface wind and thermohaline forcing, coastline geometry and topographic slope on the coastal dynamics including wave processes and current instabilities? What is the role of coastal air-ocean coupling on the oceanic and atmospheric dynamics of mesoscale eddies? To study these problems, a coastal atmosphere-ocean coupled system (CAOCS) was developed at the Naval Postgraduate School. The model domain covers the whole EAMS and surrounding land and islands. The surface fluxes of water, heat (excluding solar radiation), and momentum are applied synchronously with opposite signs in the atmosphere and ocean. Flux adjustments are not used.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 4
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Book Description
The South China Sea (SCS), Yellow/East China Sea (YES), and Japan/East Sea (JES) are major East Asian marginal seas (EAMS). The complex topography includes the broad shallows of the Sunda Shelf in the south/southwest of SCS; the continental shelf of the Asian landmass in the north, extending from the Gulf of Tonkin to the YES; deep, elliptical shaped SCS and JES basins, and numerous reef islands and underwater plateaus scattered throughout the basins. The shelf that extends from the Gulf of Tonkin to the YES is consistently near 70 meters deep, and averages 150 km in width. The EAMS is subjected to a seasonal monsoon system. From April to August, the weaker southwesterly summer monsoon winds result in a wind stress of just over 0.1 N/sq m. From November to March, the stronger northeasterly winter monsoon winds correspond to a maximum wind stress of nearly 0.3 N/sq m. Recent observational studies show that the EAMS is energetic and has multi-eddy structure. For example, the eddy spatial and temporal scales in the YES were identified using the Navy's Master Oceanographic Observational Data Set (MOODS) during 1929-1991. The fundamental scientific issues are as follows: What are the dynamical balances controlling mesoscale eddy variations in EAMS? What are the effects of surface wind and thermohaline forcing, coastline geometry and topographic slope on the coastal dynamics including wave processes and current instabilities? What is the role of coastal air-ocean coupling on the oceanic and atmospheric dynamics of mesoscale eddies? To study these problems, a coastal atmosphere-ocean coupled system (CAOCS) was developed at the Naval Postgraduate School. The model domain covers the whole EAMS and surrounding land and islands. The surface fluxes of water, heat (excluding solar radiation), and momentum are applied synchronously with opposite signs in the atmosphere and ocean. Flux adjustments are not used.
Author: Michael J. Roth
Publisher:
ISBN: 9781423522973
Category :
Languages : en
Pages : 591
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Book Description
A Coastal air-ocean coupled system (CAOCS) that includes the Princeton Ocean Model (POM) as the ocean component and the Pennsylvania State University/National center for Atmospheric Research (PSU/NCAR) Mesoscale Model Fifth Generation (MM5) as the atmospheric component was developed for the east Asian marginal seas (EAMS) - a littoral environment that is a common operating area for the United States Navy (USN). CAOCS output verified against surface wind data from the National Centers for Environmental Prediction (NCEP) and sea surface temperature (SST)/Sea Surface Salinity (SSS) data collected from buoy stations. CAOCS output clearly shows the significance of atmospheric and oceanic Mesoscale features and their associated air-sea interaction processes such as coastal upwelling Ekman transport and enhancement of upward vertical motion during cyclogenesis. These Mesoscale features and air-sea interaction processes occur during periods prior to summer monsoon onset as well as during time periods following summer monsoon onset. The study provides support that CAOCS does perform well in forecasting EAMS surface current circulation SST/SSS structure surface wind stress and low-level atmospheric structure. Sone weaknesses of CAOCS were identified that will aid in future improvement of the model.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 7
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Book Description
The South China Sea (SCS), Yellow/East China Sea (YES), and Japan/East Sea (JES) are major east Asian marginal seas (EAMS). The complex topography includes the broad shallows of the Sunda Shelf in the south/southwest of SCS; the continental shelf of the Asian landmass in the north, extending from the Gulf of Tonkin to the YES; a deep, elliptical shaped SCS and JES basins, and numerous reef islands and underwater plateaus scattered throughout (Fig. 1a). The shelf that extends from the Gulf of Tonkin to the YES is consistently near 70 m deep, and averages 150 km in width. The EAMS is subjected to a seasonal monsoon system. From April to August, the weaker southwesterly summer monsoon winds result in a wind stress of just over 0.1 N/m2. From November to March, the stronger northeasterly winter monsoon winds corresponds to a maximum wind stress of nearly 0.3 N /m2. Recent observational studies show that the EAMS is energetic and has multi-eddy structure. For example, the SCS synoptic eddy structure was identified in May 1995 using the airborne expendable bathythermograph (AXBT) data (Chu et al., 1998a), the eddy spatiotemporal scales in the YES were identified using the Navy's Master Oceanographic Observational Data Set (MOODS) during 1929- 1991 (Chu et al., 1997a, b), and the seasonal JES multi-eddy structure from a composite analysis on the U.S. National Centers for Environmental Prediction (NCEP) monthly SST fields during 1981-1994 (Chu et al. 1998b).
Author: P.F. Hodnett
Publisher: Springer Science & Business Media
ISBN: 9401007926
Category : Science
Languages : en
Pages : 311
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Book Description
The goals ofthe Symposium were to highlight advances in modelling ofatmosphere and ocean dynamics, to provide a forum where atmosphere and ocean scientists could present their latest research results and learn ofprogress and promising ideas in these allied disciplines; to facilitate interaction between theory and applications in atmosphere/ocean dynamics. These goals were seen to be especially important in view ofcurrent efforts to model climate requiring models which include interaction between atmosphere, ocean and land influences. Participants were delighted with the diversity ofthe scientific programme; the opportunity to meet fellow scientists from the other discipline (either atmosphere or ocean) with whom they do not normally interact through their own discipline; the opportunity to meet scientists from many countries other than their own; the opportunity to hear significant presentations (50 minutes) from the keynote speakers on a range ofrelevant topics. Certainly the goal ofcreating a forum for exchange between atmosphere and ocean scientists who need to input to create realistic models for climate prediction was achieved by the Symposium and this goal will hopefully be further advanced by the publication ofthese Proceedings.
Author: SungHyun Nam
Publisher: Frontiers Media SA
ISBN: 2832504531
Category : Science
Languages : en
Pages : 424
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Author: K. Takano
Publisher: Elsevier
ISBN: 0080870929
Category : Science
Languages : en
Pages : 443
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Book Description
This volume contains 31 papers on physical and geological oceanography, marine engineering and meterology in the Japan Sea and the East China Sea. Almost all these papers were presented at the Fifth JECSS (Japan and East China Seas Study) Workshop held in Korea in 1989. Results of multinational cooperative studies carried out since the initiation of JECSS in 1981 are presented. Authors are from China, Japan, Korea, UK, USA and USSR. A wide range of subjects are covered from the viewpoint of various disciplines. The status of recent research on Asian marginal seas is outlined and points at issue are defined. An important aspect is the coverage of results from the USSR and China which are not normally easily accessible to scientists in other countries, despite the importance of this research to the international scientific community. Various subjects, from estuaries to the problems related to the whole north Pacific, are covered in this book, and it is recommended to scientists in coastal oceanography, environmental oceanography, mesoscale (synoptic scale) oceanography and large-scale oceanography.
Author: Christopher N. K. Mooers
Publisher: American Geophysical Union
ISBN:
Category : Nature
Languages : en
Pages : 544
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Book Description
Published by the American Geophysical Union as part of the Coastal and Estuarine Studies, Volume 56. Coastal Ocean Prediction is being published during a period when operational coastal ocean prediction systems are emerging in Europe, Asia, Australia, and North America. Some of these systems are linked to activities of the Global Ocean Observing System, sponsored by the Intergovernmental Oceanographic Commission, World Meteorological Organization, United Nations Environmental Program, and the International Council of Scientific Unions. The Global Ocean Observing System is itself an emergent program of model?]based operational (i.e., continual and governmentally sanctioned) monitoring with coastal ocean, as well as fully global, components.
Author: Xiaodong Hong
Publisher:
ISBN:
Category : Ocean-atmosphere interaction
Languages : en
Pages : 378
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Author: Peter Joshua Rovero
Publisher:
ISBN:
Category : Meteorology
Languages : en
Pages : 98
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Book Description
The purpose of this research is to explore the need for time-dependent sea-surface temperatures in atmospheric model predictions to 10 days. Six and nine-layer versions of the Navy Operational Global Prediction System (NOGAPS) are used in this study. Control forecasts were made in which the sea-surface temperature (SST) is fixed in time. Test hindcasts were made in which the SST was updated at each time step of the atmospheric model using interpolations of 12-hourly SST analyses. The 10-day predictions are compared to determine any improvement or degradation due to the time-dependent SST. Two cases are analyzed, one during November 1983 and another during April 1984. Use of time-dependent SST's resulted in significant changes in the forecast fields of surface heat fluxes and precipitation which were physically consistent with the SST trend. Analysis of 15 storm forecasts revealed significant changes in storm track duration or cyclogenesis in only 4 cases. Three of these cases were forecast by the nine-layer version of NOGAPS during the April period and one case was forecast by the six-layer NOCAPS during the November period. Originator-supplied keywords include: Atmosphere-ocean coupled models, Sea surface temperature, NOGAPS, and T-EOTS.
Author:
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ISBN:
Category :
Languages : en
Pages : 11
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A case is made that the national process of special appropriations monies to establish the coastal observing component of the integrated ocean observing system (IOOS) network is not well organized and without substantive value, given the way that it has been orchestrated. Alternatively, a case is made that the special appropriations monies could and should be better spent in pursuit of the establishment of the national backbone that is needed to greatly improve atmospheric, oceanic and coastal "weather" forecasting, broadly defined, for ecosystem management and to document climate variability and change in coastal zones. Part of the problem is historical and cultural. An example of a sub-regional effort to focus on societal needs is presented by way of example to show that university partners (to federal agencies) could have an important role to play in the future of ocean and coastal observing and prediction systems and networks.
