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Mesoscale Coupled Ocean Atmosphere Interaction
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Book Synopsis Mesoscale Coupled Ocean-atmosphere Interaction by : Hyodae Seo
Download or read book Mesoscale Coupled Ocean-atmosphere Interaction written by Hyodae Seo and published by . This book was released on 2007 with total page 165 pages. Available in PDF, EPUB and Kindle. Book excerpt: Extending SCOAR to the tropical Atlantic TIWs shows that air-sea coupling damps the eddy kinetic energy of the waves. TIW-induced wind stress is negatively correlated with the TIW-induced ocean surface current, and this slows down the TIW-currents.
Book Synopsis Ocean-Atmosphere Interactions by : Y. Toba
Download or read book Ocean-Atmosphere Interactions written by Y. Toba and published by The Rosen Publishing Group. This book was released on 2003-08-31 with total page 336 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents an up-to-date analysis of ocean-atmosphere interaction. Well known experts examine diverse subjects such as ocean surface waves, air-sea exchange processes, ocean surface mixed layer, water-mass formation, as well as general circulation of the oceans, El Nino and Southern Oscillation (ENSO), and the deep-ocean circulation. Other areas described are basic dynamics, data analysis techniques, numerical modelling, and remote sensing. This book is primarily aimed at graduate and senior undergraduate courses in the area of ocean-atmosphere research.
Book Synopsis Interacting Climates of Ocean Basins by : Carlos R. Mechoso
Download or read book Interacting Climates of Ocean Basins written by Carlos R. Mechoso and published by Cambridge University Press. This book was released on 2020-11-26 with total page 359 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive review of interactions between the climates of different ocean basins and their key contributions to global climate variability and change. Providing essential theory and discussing outstanding examples as well as impacts on monsoons, it a useful resource for graduate students and researchers in the atmospheric and ocean sciences.
Book Synopsis Collaborative Project. Ocean-atmosphere Interaction from Meso- to Planetary-scale. Mechanics, Parameterization, and Variability by :
Download or read book Collaborative Project. Ocean-atmosphere Interaction from Meso- to Planetary-scale. Mechanics, Parameterization, and Variability written by and published by . This book was released on 2015 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt: Most climate models are currently run with grid spacings of around 100km, which, with today's computing power, allows for long (up to 1000 year) simulations, or ensembles of simulations to explore climate change and variability. However this grid spacing does not resolve important components of the weather/climate system such as atmospheric fronts and mesoscale systems, and ocean boundary currents and eddies. The overall aim of this project has been to look at the effect of these small-scale features on the weather/climate system using a suite of high and low resolution climate models, idealized models and observations. High-resolution global coupled integrations using CAM/CESM were carried out at NCAR by the lead PI. At TAMU, we have complemented the work at NCAR by analyzing datasets from the high-resolution (28km) CESM integrations (Small et al., 2014) as well as very high resolution (9km, 3km) runs using a coupled regional climate (CRCM) carried out locally. The main tasks carried out were: 1. Analysis of surface wind in observations and high-resolution CAM/CCSM simulations 2. Development of a feature-tracking algorithm for studying midlatitude air-sea interaction by following oceanic mesoscale eddies and creating composites of the atmospheric response overlying the eddies. 3. Applying the Lagrangian analysis technique in the Gulf Stream region to compare data from observational reanalyses, global CESM coupled simulations, 9km regional coupled simulations and 3km convection-resolving regional coupled simulations. Our main findings are that oceanic mesoscale eddies influence not just the atmospheric boundary layer above them, but also the lower portions of the free troposphere above the boundary layer. Such a vertical response could have implications for a remote influence of Gulf Stream oceanic eddies on North Atlantic weather patterns through modulation of the storm track, similar to what has been noted in the North Pacific. The coarse resolution observational reanalyses perhaps underestimate the atmospheric response, but the 28km global model resolution appears to be adequate to capture some, but not all, aspects of the boundary response. The higher resolution regional models show a stronger response in certain fields such as the latent heat flux.
Book Synopsis The Coupled Ocean/Atmosphere Mesoscale Prediction System (COAMPS). by :
Download or read book The Coupled Ocean/Atmosphere Mesoscale Prediction System (COAMPS). written by and published by . This book was released on 2002 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt: Typically, data assimilation systems have been developed separately for the atmosphere and ocean. However, there is increasing evidence that suggests that the atmosphere and ocean data assimilation systems should be combined. To fully account for these observed interactions as well as to anticipate the discovery of a host of other ways in which the ocean and atmosphere modify each other, NRL has undertaken the development of the Couple Ocean/Atmosphere Mesoscale Prediction System (COAMPS). The goal of this modeling project is to gain predictive skill in simulating the ocean and atmosphere at high resolution on time-scales of hours to several days. Significant questions exist as to how tightly coupled the atmosphere and ocean data assimilation systems must be, and over what types of atmospheric and ocean conditions this coupling is important. The purpose of this paper is to provided a description of the status of COAMPS and present recent results.
Book Synopsis Coast-ocean-atmosphere-ocean Mesoscale Interaction by : David Atlas
Download or read book Coast-ocean-atmosphere-ocean Mesoscale Interaction written by David Atlas and published by . This book was released on 1982 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Numerical Studies of the Air-sea Interaction Processes in Intense Tropical Systems Using the Coupled Ocean/atmosphere Mesoscale Prediction System by : Xiaodong Hong
Download or read book Numerical Studies of the Air-sea Interaction Processes in Intense Tropical Systems Using the Coupled Ocean/atmosphere Mesoscale Prediction System written by Xiaodong Hong and published by . This book was released on 1998 with total page 378 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Collaborative Project written by and published by . This book was released on 2015 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This project aims to improve long term global climate simulations by resolving ocean mesoscale activity and the corresponding response in the atmosphere. The main computational objectives are; i) to perform and assess Community Earth System Model (CESM) simulations with the new Community Atmospheric Model (CAM) spectral element dynamical core; ii) use static mesh refinement to focus on oceanic fronts; iii) develop a new Earth System Modeling tool to investigate the atmospheric response to fronts by selectively filtering surface flux fields in the CESM coupler. The climate research objectives are 1) to improve the coupling of ocean fronts and the atmospheric boundary layer via investigations of dependency on model resolution and stability functions: 2) to understand and simulate the ensuing tropospheric response that has recently been documented in observations: and 3) to investigate the relationship of ocean frontal variability to low frequency climate variability and the accompanying storm tracks and extremes in high resolution simulations. This is a collaborative multi-institution project consisting of computational scientists, climate scientists and climate model developers. It specifically aims at DOE objectives of advancing simulation and predictive capability of climate models through improvements in resolution and physical process representation.
Book Synopsis Sub-seasonal to Seasonal Prediction by : Andrew Robertson
Download or read book Sub-seasonal to Seasonal Prediction written by Andrew Robertson and published by Elsevier. This book was released on 2018-10-19 with total page 585 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Gap Between Weather and Climate Forecasting: Sub-seasonal to Seasonal Prediction is an ideal reference for researchers and practitioners across the range of disciplines involved in the science, modeling, forecasting and application of this new frontier in sub-seasonal to seasonal (S2S) prediction. It provides an accessible, yet rigorous, introduction to the scientific principles and sources of predictability through the unique challenges of numerical simulation and forecasting with state-of-science modeling codes and supercomputers. Additional coverage includes the prospects for developing applications to trigger early action decisions to lessen weather catastrophes, minimize costly damage, and optimize operator decisions. The book consists of a set of contributed chapters solicited from experts and leaders in the fields of S2S predictability science, numerical modeling, operational forecasting, and developing application sectors. The introduction and conclusion, written by the co-editors, provides historical perspective, unique synthesis and prospects, and emerging opportunities in this exciting, complex and interdisciplinary field. Contains contributed chapters from leaders and experts in sub-seasonal to seasonal science, forecasting and applications Provides a one-stop shop for graduate students, academic and applied researchers, and practitioners in an emerging and interdisciplinary field Offers a synthesis of the state of S2S science through the use of concrete examples, enabling potential users of S2S forecasts to quickly grasp the potential for application in their own decision-making Includes a broad set of topics, illustrated with graphic examples, that highlight interdisciplinary linkages
Book Synopsis Ocean Atmosphere Interaction and Climate Modeling by : Boris A. Kagan
Download or read book Ocean Atmosphere Interaction and Climate Modeling written by Boris A. Kagan and published by Cambridge University Press. This book was released on 1995-03-09 with total page 390 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive 1995 treatment of all aspects of ocean-atmosphere interactions, for advanced students and professional researchers.
Book Synopsis Mesoscale Coupled Ocean-atmosphere Feedbacks in Boundary Current Systems by : Dian Ariyani Putrasahan
Download or read book Mesoscale Coupled Ocean-atmosphere Feedbacks in Boundary Current Systems written by Dian Ariyani Putrasahan and published by . This book was released on 2012 with total page 99 pages. Available in PDF, EPUB and Kindle. Book excerpt: The focus of this dissertation is on studying ocean-atmosphere (OA) interactions in the Humboldt Current System (HCS) and Kuroshio Extension (KE) region using satellite observations and the Scripps Coupled Ocean-Atmosphere Regional (SCOAR) model. Within SCOAR, a new technique is introduced by implementing an interactive 2-D spatial smoother within the SST-flux coupler to remove the mesoscale SST field felt by the atmosphere. This procedure allows large-scale SST coupling to be preserved while extinguishing the mesoscale eddy impacts on the atmospheric boundary layer (ABL). This technique provides insights to spatial-scale dependence of OA coupling, and the impact of mesoscale features on both the ABL and the surface ocean. For the HCS, the use of downscaled forcing from SCOAR, as compared to NCEP Reanalysis 2, proves to be more appropriate in quantifying wind-driven upwelling indices along the coast of Peru and Chile. The difference in their wind stress distribution has significant impact on the wind-driven upwelling processes and total upwelling transport along the coast. Although upwelling induced by coastal Ekman transport dominates the wind-driven upwelling along coastal areas, Ekman pumping can account for 30% of the wind-driven upwelling in several coastal locations. Control SCOAR shows significant SST-wind stress coupling during fall and winter, while Smoothed SCOAR shows insignificant coupling throughout, indicating the important role of ocean mesoscale eddies on air-sea coupling in HCS. The SST-wind stress coupling however, did not produce any rectified response on the ocean eddies. Coupling between SST, wind speed and latent heat flux is insignificant on large-scale coupling and full coupling mode. On the other hand, coupling between these three variables are significant on the mesoscale for most of the model run, which suggests that mesoscale SST affects latent heat through direct flux anomalies as well as indirectly through stability changes on the overlying atmosphere, which affects surface wind speeds and thus latent heat flux. In the KE region, differences in the strength of coupling between the Control and Smoothed SCOAR runs indicate how the spatial scale of SST fronts affects the OA coupling via two distinct mechanisms, the vertical mixing mechanism (VMM) and the pressure adjustment mechanism (PAM). Intuitively, one might expect that the VMM would be most active on the ocean mesoscale and less significant on the large scale. Instead, the model revealed that the VMM, expressed through the coupling between downwind SST gradient and wind stress divergence, acts strongly on both the large scale and mesoscale. In contrast, coupling between crosswind SST gradients and wind stress curl is seen on the mesoscale, but extinguished over large-scale SST gradients, revealing the vital role of ocean mesoscale. For PAM, one might expect the large-scale coupling to be dominant in establishing the PAM. Instead, model results suggest that in PAM, the coupling between the Laplacian of sea level pressure and surface wind convergence are active on both the mesoscale and the large scale, though the coupling strength nearly doubles with the inclusion of ocean mesoscale. Ocean mesoscale imprints are also seen on precipitation anomalies, for which their differences are more aligned with the differences in SST gradients and surface wind convergence rather than SST anomalies.
Book Synopsis Atmosphere-ocean Interactions by : William Allan Perrie
Download or read book Atmosphere-ocean Interactions written by William Allan Perrie and published by WIT Press. This book was released on 2002 with total page 241 pages. Available in PDF, EPUB and Kindle. Book excerpt: The increase in levels of population and human development in coastal areas has led to a greater importance of understanding atmosphere-ocean interactions. This second volume on atmosphere-ocean interactions aims to present several of the key mechanisms that are important for the development of marine storms.
Book Synopsis Improving Surface Flux Parameterizations in the NRL Coupled Ocean/Atmosphere Mesoscale Prediction System by :
Download or read book Improving Surface Flux Parameterizations in the NRL Coupled Ocean/Atmosphere Mesoscale Prediction System written by and published by . This book was released on 2008 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt: The long-term goal is to understand the physical processes that critically regulate the coupling between the oceanic and atmospheric boundary layers and develop advanced parameterizations of this interaction for a new generation of coupled ocean-atmosphere models.
Book Synopsis Ocean Atmosphere Interaction and Climate Modeling by : Boris A. Kagan
Download or read book Ocean Atmosphere Interaction and Climate Modeling written by Boris A. Kagan and published by Cambridge University Press. This book was released on 1995-03-09 with total page 392 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book aims to acquaint readers with the recent advances in experimental and theoretical investigations of ocean-atmosphere interactions, a rapidly developing field in earth sciences. Particular attention is paid to the scope and perspectives for satellite measurements and mathematical modeling. Current approaches to the construction of coupled ocean-atmosphere models (from the simplest one-dimensional to comprehensive three-dimensional ones) for the solution of key problems in climate theory are discussed in detail. Field measurements and the results of numerical climate simulations are presented and help to explain climate variability that arises from various natural and anthropogenic factors.
Book Synopsis Tropical and Extratropical Air-Sea Interactions by : Swadhin Kumar Behera
Download or read book Tropical and Extratropical Air-Sea Interactions written by Swadhin Kumar Behera and published by Elsevier. This book was released on 2020-11-18 with total page 327 pages. Available in PDF, EPUB and Kindle. Book excerpt: Tropical and Extratropical Air-Sea Interactions: Modes of Climate Variations provides a thorough introduction to global atmospheric and oceanic processes, as well as tropical, subtropical and mid-latitude ocean-atmosphere interactions. Written by leading experts in the field, each chapter is dedicated to a specific topic of air-sea interactions (such as ENSO, IOD, Atlantic Nino, ENSO Modoki, and newly discovered coastal Niños/Niñas) and their teleconnections. As the first book to cover all topics of tropical and extra-tropical air-sea interactions and new modes of climate variations, this book is an excellent resource for researchers and students of ocean, atmospheric and climate sciences. Presents case studies on the ocean-atmosphere phenomena, including El Nino Southern Oscillation (ENSO), Indian Ocean Dipole and different Nino/Nina phenomena Provides a clear description of air-sea relationships across the world’s ocean with an analysis of air-sea relations in different time scales and a focus on climate change Includes prospects for air-sea interaction research, thus benefiting young researchers and students
Book Synopsis Ocean-Atmosphere Interactions by : Y. Toba
Download or read book Ocean-Atmosphere Interactions written by Y. Toba and published by Springer. This book was released on 2010-12-04 with total page 305 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents an up-to-date analysis of ocean-atmosphere interaction. Well known experts examine diverse subjects such as ocean surface waves, air-sea exchange processes, ocean surface mixed layer, water-mass formation, as well as general circulation of the oceans, El Nino and Southern Oscillation (ENSO), and the deep-ocean circulation. Other areas described are basic dynamics, data analysis techniques, numerical modelling, and remote sensing. This book is primarily aimed at graduate and senior undergraduate courses in the area of ocean-atmosphere research.
Book Synopsis Numerical Simulation of the Mesoscale Air-Sea Interaction Over the Western Pacific Warm Pool by :
Download or read book Numerical Simulation of the Mesoscale Air-Sea Interaction Over the Western Pacific Warm Pool written by and published by . This book was released on 2002 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of the research is to improve our understanding of the air-sea interaction processes over the region of western Pacific warm pool and ultimately improve weather and climate predictions. To achieve this goal, an air-sea coupled numerical model that includes the momentum, heat and freshwater fluxes across the air-sea interface is developed by combining the Advanced Regional Prediction System (ARPS) and the Princeton Ocean Model (POM). First, a squall line system observed during the Tropical Ocean Global Atmosphere/Coupled Ocean-Atmosphere Response Experiment (TOGA/COARE) Intensive Observation Period (IOP) is simulated. The simulation results are in agreement with the observations. Sensitivity experiments reveal that the orientation of the initial perturbation can affect the development of the squall line. Inclusion of ice microphysics and surface fluxes affects the strength and extent of the simulated downdraft-induced low level cold air pool. Then, the ocean's response to precipitation is investigated using the POM model. The results show that the rainfall-induced heat and salinity gradients cause a thin low density, low temperature stable layer near sea surface. The rainfall-induced stable layer near the surface diminishes the downward transfer of the effects of the atmospheric forcing. This causes the effects of the atmospheric forcing to be concentrated accumulate near the sea surface. Because of this rainfall-induced shallow (about 10 m) stable layer, the sea surface responds to atmospheric forcing much faster than it would do without the rainfall-induced stable layer. Finally, the air sea coupled system is used to investigate the ocean's response to an observed squall line precipitation process and the feedback effects of the sea surface temperature (SST) variation on the atmosphere. The results show that the SST feedback effect does not have a significant influence on the local existing atmospheric convection. However, the feedback effects have sign.
