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Observations Of Surface To Atmosphere Interactions In The Tropics
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Book Synopsis Observations of Surface to Atmosphere Interactions in the Tropics by : Michael Garstang
Download or read book Observations of Surface to Atmosphere Interactions in the Tropics written by Michael Garstang and published by Oxford University Press, USA. This book was released on 1999 with total page 422 pages. Available in PDF, EPUB and Kindle. Book excerpt: Called the firebox of the atmosphere, the tropics absorb more energy from the Sun than they lose through longwave emissions; this excess energy activates processes in the temperate and polar regions of the Earth. This book documents the historical evolution of concepts which describe the complex interactions of scales of motion which connect the surface, mixed, and cloud layers to the deeper atmosphere of the tropics. Thermodynamic and kinematic consequences of these transfers of energy are extended to the geochemical and living worlds.
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 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 Ocean-Atmosphere Interactions of Gases and Particles by : Peter S. Liss
Download or read book Ocean-Atmosphere Interactions of Gases and Particles written by Peter S. Liss and published by Springer. This book was released on 2013-12-18 with total page 315 pages. Available in PDF, EPUB and Kindle. Book excerpt: The oceans and atmosphere interact through various processes, including the transfer of momentum, heat, gases and particles. In this book leading international experts come together to provide a state-of-the-art account of these exchanges and their role in the Earth-system, with particular focus on gases and particles. Chapters in the book cover: i) the ocean-atmosphere exchange of short-lived trace gases; ii) mechanisms and models of interfacial exchange (including transfer velocity parameterisations); iii) ocean-atmosphere exchange of the greenhouse gases carbon dioxide, methane and nitrous oxide; iv) ocean atmosphere exchange of particles and v) current and future data collection and synthesis efforts. The scope of the book extends to the biogeochemical responses to emitted / deposited material and interactions and feedbacks in the wider Earth-system context. This work constitutes a highly detailed synthesis and reference; of interest to higher-level university students (Masters, PhD) and researchers in ocean-atmosphere interactions and related fields (Earth-system science, marine / atmospheric biogeochemistry / climate). Production of this book was supported and funded by the EU COST Action 735 and coordinated by the International SOLAS (Surface Ocean- Lower Atmosphere Study) project office.
Book Synopsis Ocean-atmosphere Feedbacks in Two Tropical Atmospheric Regimes by : Suneil Iyer
Download or read book Ocean-atmosphere Feedbacks in Two Tropical Atmospheric Regimes written by Suneil Iyer and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Air-sea interactions are a critical component of the global climate system. Despite this, uncertainty remains in our understanding of air-sea interaction across spatial scales, particularly on small scales, which are not observable by remote sensing and often not explicitly represented in models due to computational limitations. This dissertation provides insight into the key processes that drive air-sea interaction in two tropical regions that are important for modulating synoptic to global-scale weather and climate: the inter-tropical convergence zone and the trade winds. The first chapter uses a series of model experiments based on observations from the rainy eastern tropical Pacific to evaluate the influence of preexisting ocean stratification and tropical rain modes on the upper ocean salinity response to rainfall, a process that modulates how freshwater is incorporated into the ocean structure. Differences in the timing of convective and stratiform components of rain events can modify the duration which surface salinity anomalies persist following rain for over two hours, while strong preexisting stratification can allow near-surface salinity anomalies produced by rain to persist for over seven hours longer compared to when rain falls on a well-mixed ocean. Similar differences in salinity structure can exist at deeper depths of up to 20 meters in the mixed layer. This work provides insight into the limitations of using low-resolution satellite rain observations in the context of physical oceanographic studies and examines a critical component of the global water cycle. The second and third chapters use observations from surface drifters and autonomous vehicles that measure the atmosphere and near-surface ocean in the tropical Atlantic trade wind region to evaluate the spatial variability of ocean surface waves and bulk air-sea fluxes. While previous research has mostly been limited to areas having particularly strong submesoscale activity, this work provides insight into the spatial variability present in a less energetic region representative of larger areas of the global ocean. Surface current variability in the trade winds influence wave slope and air-sea momentum flux due to changes in the relative wind speed and wave-current interactions. Wave-current interactions specifically modify momentum flux by as much as 10%. Across scales of tens of kilometers, air-sea sensible heat, latent heat, and upward buoyancy fluxes vary by 10, 50, and 10 watts per square meter. Sensible heat and upward buoyancy fluxes are significantly influenced by spatial sea surface temperature variability, while latent heat flux variability is primarily driven by changes in the atmosphere. The findings from this work could ultimately be used to guide the development of fully coupled atmosphere-wave-ocean models or quantify the limitations of using lower-resolution remote observations or models. Collectively, the following work serves to elucidate the physics of the dominant small-scale air-sea processes in two regions of the tropical ocean, quantify the influence of these processes on air-sea interaction and upper-ocean mixing, and suggest hypotheses on the implications of neglecting small-scale processes in regional or global studies of the coupled air-sea system.
Book Synopsis Tropical Forests and Climate by : N. Myers
Download or read book Tropical Forests and Climate written by N. Myers and published by Springer Science & Business Media. This book was released on 2013-06-29 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt: Tropical forests affect climate, and the removal of the forests will change climate. Or not? This book discusses basic questions on how far, if at all, tropical deforestation leads to climatic change. The question of this uncertainty is particularly addressed. One important consequence of the uncertainties of whether deforestation affects climate is how scientific findings best illuminate the policy-making process.
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 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 Tropical Ocean-atmosphere Newsletter by :
Download or read book Tropical Ocean-atmosphere Newsletter written by and published by . This book was released on 1980 with total page 82 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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 Tropical Ocean-atmosphere Newsletter by :
Download or read book Tropical Ocean-atmosphere Newsletter written by and published by . This book was released on 1980 with total page 418 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Monthly Weather Review written by and published by . This book was released on 1987 with total page 1452 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Amazonia and Global Change by : Michael Keller
Download or read book Amazonia and Global Change written by Michael Keller and published by John Wiley & Sons. This book was released on 2013-05-02 with total page 1472 pages. Available in PDF, EPUB and Kindle. Book excerpt: Published by the American Geophysical Union as part of the Geophysical Monograph Series, Volume 186. Amazonia and Global Change synthesizes results of the Large-Scale Biosphere-Atmosphere Experiment in Amazonia (LBA) for scientists and students of Earth system science and global environmental change. LBA, led by Brazil, asks how Amazonia currently functions in the global climate and biogeochemical systems and how the functioning of Amazonia will respond to the combined pressures of climate and land use change, such as Wet season and dry season aerosol concentrations and their effects on diffuse radiation and photosynthesis Increasing greenhouse gas concentration, deforestation, widespread biomass burning and changes in the Amazonian water cycle Drought effects and simulated drought through rainfall exclusion experiments The net flux of carbon between Amazonia and the atmosphere Floodplains as an important regulator of the basin carbon balance including serving as a major source of methane to the troposphere The impact of the likely increased profitability of cattle ranching. The book will serve a broad community of scientists and policy makers interested in global change and environmental issues with high-quality scientific syntheses accessible to nonspecialists in a wide community of social scientists, ecologists, atmospheric chemists, climatologists, and hydrologists.
Book Synopsis Dynamics of the Tropical Atmosphere and Oceans by : Peter J. Webster
Download or read book Dynamics of the Tropical Atmosphere and Oceans written by Peter J. Webster and published by John Wiley & Sons. This book was released on 2020-06-08 with total page 529 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents a unique and comprehensive view of the fundamental dynamical and thermodynamic principles underlying the large circulations of the coupled ocean-atmosphere system Dynamics of The Tropical Atmosphere and Oceans provides a detailed description of macroscale tropical circulation systems such as the monsoon, the Hadley and Walker Circulations, El Niño, and the tropical ocean warm pool. These macroscale circulations interact with a myriad of higher frequency systems, ranging from convective cloud systems to migrating equatorial waves that attend the low-frequency background flow. Towards understanding and predicting these circulation systems. A comprehensive overview of the dynamics and thermodynamics of large-scale tropical atmosphere and oceans is presented using both a “reductionist” and “holistic” perspectives of the coupled tropical system. The reductionist perspective provides a detailed description of the individual elements of the ocean and atmospheric circulations. The physical nature of each component of the tropical circulation such as the Hadley and Walker circulations, the monsoon, the incursion of extratropical phenomena into the tropics, precipitation distributions, equatorial waves and disturbances described in detail. The holistic perspective provides a physical description of how the collection of the individual components produces the observed tropical weather and climate. How the collective tropical processes determine the tropical circulation and their role in global weather and climate is provided in a series of overlapping theoretical and modelling constructs. The structure of the book follows a graduated framework. Following a detailed description of tropical phenomenology, the reader is introduced to dynamical and thermodynamical constraints that guide the planetary climate and establish a critical role for the tropics. Equatorial wave theory is developed for simple and complex background flows, including the critical role played by moist processes. The manner in which the tropics and the extratropics interact is then described, followed by a discussion of the physics behind the subtropical and near-equatorial precipitation including arid regions. The El Niño phenomena and the monsoon circulations are discussed, including their covariance and predictability. Finally, the changing structure of the tropics is discussed in terms of the extent of the tropical ocean warm pool and its relationship to the intensity of global convection and climate change. Dynamics of the Tropical Atmosphere and Oceans is aimed at advanced undergraduate and early career graduate students. It also serves as an excellent general reference book for scientists interested in tropical circulations and their relationship with the broader climate system.
Book Synopsis Statistical and Dynamical Assessment of Land-ocean-atmosphere Interactions Across North Africa by : Yan Yu
Download or read book Statistical and Dynamical Assessment of Land-ocean-atmosphere Interactions Across North Africa written by Yan Yu and published by . This book was released on 2017 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt: North Africa is highly vulnerable to hydrologic variability and extremes, including impacts of climate change. The current understanding of oceanic versus terrestrial drivers of North African droughts and pluvials is largely model-based, with vast disagreement among models in terms of the simulated oceanic impacts and vegetation feedbacks. Regarding oceanic impacts, the relative importance of the tropical Pacific, tropical Indian, and tropical Atlantic Oceans in regulating the North African rainfall variability, as well as the underlying mechanism, remains debated among different modeling studies. Classic theory of land-atmosphere interactions across the Sahel ecotone, largely based on climate modeling experiments, has promoted positive vegetation-rainfall feedbacks associated with a dominant surface albedo mechanism. However, neither the proposed positive vegetation-rainfall feedback with its underlying albedo mechanism, nor its relative importance compared with oceanic drivers, has been convincingly demonstrated up to now using observational data. Here, the multivariate Generalized Equilibrium Feedback Assessment (GEFA) is applied in order to identify the observed oceanic and terrestrial drivers of North African climate and quantify their impacts. The reliability of the statistical GEFA method is first evaluated against dynamical experiments within the Community Earth System Model (CESM). In order to reduce the sampling error caused by short data records, the traditional GEFA approach is refined through stepwise GEFA, in which unimportant forcings are dropped through stepwise selection. In order to evaluate GEFA's reliability in capturing oceanic impacts, the atmospheric response to a sea-surface temperature (SST) forcing across the tropical Pacific, tropical Indian, and tropical Atlantic Ocean is estimated independently through ensembles of dynamical experiments and compared with GEFA-based assessments. Furthermore, GEFA's performance in capturing terrestrial impacts is evaluated through ensembles of fully coupled CESM dynamical experiments, with modified leaf area index (LAI) and soil moisture across the Sahel or West African Monsoon (WAM) region. The atmospheric responses to oceanic and terrestrial forcings are generally consistent between the dynamical experiments and statistical GEFA, confirming GEFA's capability of isolating the individual impacts of oceanic and terrestrial forcings on North African climate. Furthermore, with the incorporation of stepwise selection, GEFA can now provide reliable estimates of the oceanic and terrestrial impacts on the North African climate with the typical length of observational datasets, thereby enhancing the method's applicability. After the successful validation of GEFA, the key observed oceanic and terrestrial drivers of North African climate are identified through the application of GEFA to gridded observations, remote sensing products, and reanalyses. According to GEFA, oceanic drivers dominate over terrestrial drivers in terms of their observed impacts on North African climate in most seasons. Terrestrial impacts are comparable to, or more important than, oceanic impacts on rainfall during the post-monsoon across the Sahel and WAM region, and after the short rain across the Horn of Africa (HOA). The key ocean basins that regulate North African rainfall are typically located in the tropics. While the observed impacts of SST variability across the tropical Pacific and tropical Atlantic Oceans on the Sahel rainfall are largely consistent with previous model-based findings, minimal impacts from tropical Indian Ocean variability on Sahel rainfall are identified in observations, in contrast to previous modeling studies. The current observational analysis verifies model-hypothesized positive vegetation-rainfall feedback across the Sahel and HOA, which is confined to the post-monsoon and post-short rains season, respectively. However, the observed positive vegetation feedback to rainfall in the semi-arid Sahel and HOA is largely due to moisture recycling, rather than the classic albedo mechanism. Future projections of Sahel rainfall remain highly uncertain in terms of both sign and magnitude within phases three and five of the Coupled Model Intercomparison Project (CMIP3 and CMIP5). The GEFA-based observational analyses will provide a benchmark for evaluating climate models, which will facilitate effective process-based model weighting for more reliable projections of regional climate, as well as model development.
Book Synopsis Land Surface — Atmosphere Interactions for Climate Modeling by : E.F. Wood
Download or read book Land Surface — Atmosphere Interactions for Climate Modeling written by E.F. Wood and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 302 pages. Available in PDF, EPUB and Kindle. Book excerpt: It is well known that the interactions between land surfaces and the atmosphere, and the resulting exchanges in water and energy have a tremendous affect on climate. The inadequate representation of land-atmosphere interactions is a major weakness in current climate models, and is providing the motivation for the HAPEX and ISLSCP experiments as well as the proposed Global Energy and Water Experiment (GEWEX) and the Earth Observing System (EOS) mission. The inadequate representation reflects the recognition that the well-known phys ical relationships, which are well described at small scales, result in different relationships when represented at the scales used in climate models. Understanding this transition in the mathematical relationships with increased space-time scales appears to be very difficult, and has led to different approaches; at one extreme, the famous "bucket" model where the land-surface is a simple one layer storage without vegetation; the other extreme may be Seller's Simple Biosphere Model (Sib) where one big leaf covers the climate model grid. Given the heterogeneous nature of landforms, soils and vegetation within a climate model grid, the development of new land surface parameterizations, and their verification through large scale experiments is perceived to be a challenging area of research for the hydrology and meteorology communities. This book evolved from a workshop held at Princeton University to explore the status of land surface parameterizations within climate models, and how observa tional data can be used to assess these parameterizations and improve models.
Book Synopsis Hydrological Drought by : Lena M. Tallaksen
Download or read book Hydrological Drought written by Lena M. Tallaksen and published by Gulf Professional Publishing. This book was released on 2004 with total page 634 pages. Available in PDF, EPUB and Kindle. Book excerpt: The majority of the examples are taken from regions where the rivers run most of the year.
