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Author : Michael J. Flynn
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (643 download)
Download or read book A Study of Cloud-aerosol Interaction with Implications for Global Climate Change written by Michael J. Flynn and published by . This book was released on 2000 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Yuan Wang
Publisher : Springer
ISBN 13 : 3662471752
Total Pages : 100 pages
Book Rating : 4.6/5 (624 download)
Download or read book Aerosol-Cloud Interactions from Urban, Regional, to Global Scales written by Yuan Wang and published by Springer. This book was released on 2015-05-05 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt: The studies in this dissertation aim at advancing our scientific understandings about physical processes involved in the aerosol-cloud-precipitation interaction and quantitatively assessing the impacts of aerosols on the cloud systems with diverse scales over the globe on the basis of the observational data analysis and various modeling studies. As recognized in the Fifth Assessment Report by the Inter-government Panel on Climate Change, the magnitude of radiative forcing by atmospheric aerosols is highly uncertain, representing the largest uncertainty in projections of future climate by anthropogenic activities. By using a newly implemented cloud microphysical scheme in the cloud-resolving model, the thesis assesses aerosol-cloud interaction for distinct weather systems, ranging from individual cumulus to mesoscale convective systems. This thesis also introduces a novel hierarchical modeling approach that solves a long outstanding mismatch between simulations by regional weather models and global climate models in the climate modeling community. More importantly, the thesis provides key scientific solutions to several challenging questions in climate science, including the global impacts of the Asian pollution. As scientists wrestle with the complexities of climate change in response to varied anthropogenic forcing, perhaps no problem is more challenging than the understanding of the impacts of atmospheric aerosols from air pollution on clouds and the global circulation.
Author : Peter V. Hobbs
Publisher : Academic Press
ISBN 13 : 0080959962
Total Pages : 259 pages
Book Rating : 4.0/5 (89 download)
Download or read book Aerosol-Cloud-Climate Interactions written by Peter V. Hobbs and published by Academic Press. This book was released on 1993-07-22 with total page 259 pages. Available in PDF, EPUB and Kindle. Book excerpt: Aerosol and clouds play important roles in determining the earth's climate, in ways that we are only beginning to comprehend. In conjunction with molecular scattering from gases, aerosol and clouds determine in part what fraction of solar radiation reaches the earth's surface, and what fraction of the longwave radiation from the earth escapes to space. This book provides an overview of the latest research on atmospheric aerosol and clouds and their effects on global climate. Subjects reviewed include the direct and indirect effects of aerosol on climate, the radiative properties of clouds and their effects on the Earth's radiation balance, the incorporation of cloud effects in numerical weather prediction models, and stratospheric aerosol and clouds.
Author : Ken S. Carslaw
Publisher : Elsevier
ISBN 13 : 0128231726
Total Pages : 856 pages
Book Rating : 4.1/5 (282 download)
Download or read book Aerosols and Climate written by Ken S. Carslaw and published by Elsevier. This book was released on 2022-08-19 with total page 856 pages. Available in PDF, EPUB and Kindle. Book excerpt: The ever-diversifying field of aerosol effects on climate is comprehensively presented here, describing the strong connection between fundamental research and model applications in a way that will allow both experienced researchers and those new to the field to gain an understanding of a wide range of topics. The material is consistently presented at three levels for each topic: (i) an accessible "quick read" of the essentials, (ii) a more detailed description, and (iii) a section dedicated to how the processes are handled in models. The modelling section in each chapter summarizes the current level of knowledge and what the gaps in this understanding mean for the effects of aerosols on climate, enabling readers to quickly understand how new research fits into established knowledge. Definitions, case studies, reference data, and examples are included throughout. Aerosols and Climate is a vital resource for graduate students, postdoctoral researchers, senior researchers, and lecturers in departments of atmospheric science, meteorology, engineering, and environment. It will also be of interest to those working in operational centers and policy-facing organizations, providing strong reference material on the current state of knowledge. Includes a section in each chapter that focuses on the treatment of relevant aerosol processes in climate models Provides clear exposition of the challenges in understanding and reducing persistent gaps in knowledge and uncertainties in the field of aerosol-climate interaction, going beyond the fundamentals and existing knowledge Authored by experts in modeling and aerosol processes, analysis or observations to ensure accessibility and balance
Author : Olivier Boucher
Publisher : Springer
ISBN 13 : 9401796491
Total Pages : 322 pages
Book Rating : 4.4/5 (17 download)
Download or read book Atmospheric Aerosols written by Olivier Boucher and published by Springer. This book was released on 2015-05-18 with total page 322 pages. Available in PDF, EPUB and Kindle. Book excerpt: This textbook aims to be a one stop shop for those interested in aerosols and their impact on the climate system. It starts with some fundamentals on atmospheric aerosols, atmospheric radiation and cloud physics, then goes into techniques used for in-situ and remote sensing measurements of aerosols, data assimilation, and discusses aerosol-radiation interactions, aerosol-cloud interactions and the multiple impacts of aerosols on the climate system. The book aims to engage those interested in aerosols and their impacts on the climate system: graduate and PhD students, but also post-doctorate fellows who are new to the field or would like to broaden their knowledge. The book includes exercises at the end of most chapters. Atmospheric aerosols are small (microscopic) particles in suspension in the atmosphere, which play multiple roles in the climate system. They interact with the energy budget through scattering and absorption of solar and terrestrial radiation. They also serve as cloud condensation and ice nuclei with impacts on the formation, evolution and properties of clouds. Finally aerosols also interact with some biogeochemical cycles. Anthropogenic emissions of aerosols are responsible for a cooling effect that has masked part of the warming due to the increased greenhouse effect since pre-industrial time. Natural aerosols also respond to climate changes as shown by observations of past climates and modelling of the future climate.
Author : National Academies of Sciences, Engineering, and Medicine
Publisher : National Academies Press
ISBN 13 : 0309443458
Total Pages : 53 pages
Book Rating : 4.3/5 (94 download)
Download or read book Opportunities to Improve Representation of Clouds and Aerosols in Climate Models with Classified Observing Systems written by National Academies of Sciences, Engineering, and Medicine and published by National Academies Press. This book was released on 2016-08-31 with total page 53 pages. Available in PDF, EPUB and Kindle. Book excerpt: One of the most significant and uncertain aspects of climate change projections is the impact of aerosols on the climate system. Aerosols influence the climate indirectly by interacting with nearby clouds leading to small changes in cloud cover, thickness, and altitude, which significantly affect Earth's radiative balance. Advancements have been made in recent years on understanding the complex processes and atmospheric interactions involved when aerosols interact with surrounding clouds, but further progress has been hindered by limited observations. The National Academies of Sciences, Engineering, and Medicine organized a workshop to discuss the usefulness of the classified observing systems in advancing understanding of cloud and aerosol interactions. Because these systems were not developed with weather and climate modeling as a primary mission objective, many participants said it is necessary for scientists to find creative ways to utilize the data. The data from these systems have the potential to be useful in advancing understanding of cloud and aerosol interactions. This publication summarizes the presentations and discussions from the workshop.
Author : Isabel Louise McCoy
Publisher :
ISBN 13 :
Total Pages : 121 pages
Book Rating : 4.:/5 (124 download)
Download or read book A Synthesis of Observations of Aerosol-cloud Interactions Over the Pristine, Biologically Active Southern Ocean and the Implications for Global Climate Model Predictions written by Isabel Louise McCoy and published by . This book was released on 2020 with total page 121 pages. Available in PDF, EPUB and Kindle. Book excerpt: The change in planetary albedo due to aerosol-cloud interactions (aci) during the industrial era is the leading source of uncertainty in inferring Earth's climate sensitivity to increased greenhouse gases from the historical record. Examining pristine environments such as the Southern Ocean (SO) helps us to understand the pre-industrial (PI) state and constrain radiative forcing associated with aci (RFaci). Cloud droplet number concentration (Nd) is a key aci indicator variable. Using global climate models (GCMs), this study finds that the hemispheric contrast in Nd of liquid clouds between the pristine SO and the polluted Northern Hemisphere observed in the present-day (PD) can be used as a proxy for the increase in Nd from the PI. The hemispheric difference constraint and MODIS satellite observations suggest that PI Nd may have been higher than previously thought and provide an estimate of RFaci between -1.2 and -0.6 Wm-2. Southern Ocean liquid clouds can reach Nd levels comparable to the polluted outflows of East Asia and the United States despite persistent precipitation depletion associated with mid-latitude storm systems. This high Nd in one of the most pristine regions on Earth motivates further investigation of the mechanisms driving Nd in the real world and better inclusion of the mechanisms in models. In this study, aerosol and cloud microphysical data from the 2018 Southern Ocean Cloud Radiation Aerosol Transport Experimental Study (SOCRATES) aircraft campaign are used to identify a novel and potentially important mechanism missing or poorly represented in models: production of new particles through synoptic uplift. The small, Aitken mode particles produced in this process dominate the free tropospheric atmosphere in the summertime SO. We find it is likely that entrainment of free tropospheric Aitken aerosols is a leading contributor to sub-cloud cloud condensation nuclei and thus may be a key control on Nd. The free tropospheric Aitken reservoir may maintain the persistently high Nd observed across the SO against precipitation depletion. Finally, our observational comparisons with nudged Community Atmosphere Model (CAM6) hindcasts highlight large aerosol number and composition discrepancies that may significantly and negatively impact the ability of current climate models to capture aci in pristine, PI environments.
Author : Constantin Andronache
Publisher : Elsevier
ISBN 13 : 012810550X
Total Pages : 302 pages
Book Rating : 4.1/5 (281 download)
Download or read book Mixed-Phase Clouds written by Constantin Andronache and published by Elsevier. This book was released on 2017-09-28 with total page 302 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mixed-Phase Clouds: Observations and Modeling presents advanced research topics on mixed-phase clouds. As the societal impacts of extreme weather and its forecasting grow, there is a continuous need to refine atmospheric observations, techniques and numerical models. Understanding the role of clouds in the atmosphere is increasingly vital for current applications, such as prediction and prevention of aircraft icing, weather modification, and the assessment of the effects of cloud phase partition in climate models. This book provides the essential information needed to address these problems with a focus on current observations, simulations and applications. Provides in-depth knowledge and simulation of mixed-phase clouds over many regions of Earth, explaining their role in weather and climate Features current research examples and case studies, including those on advanced research methods from authors with experience in both academia and the industry Discusses the latest advances in this subject area, providing the reader with access to best practices for remote sensing and numerical modeling
Author : National Aeronautics and Space Administration (NASA)
Publisher : Createspace Independent Publishing Platform
ISBN 13 : 9781719386883
Total Pages : 38 pages
Book Rating : 4.3/5 (868 download)
Download or read book A State-Of-The-Art Experimental Laboratory for Cloud and Cloud-Aerosol Interaction Research written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-05-22 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt: The state of the art for predicting climate changes due to increasing greenhouse gasses in the atmosphere with high accuracy is problematic. Confidence intervals on current long-term predictions (on the order of 100 years) are so large that the ability to make informed decisions with regard to optimum strategies for mitigating both the causes of climate change and its effects is in doubt. There is ample evidence in the literature that large sources of uncertainty in current climate models are various aerosol effects. One approach to furthering discovery as well as modeling, and verification and validation (V&V) for cloud-aerosol interactions is use of a large "cloud chamber" in a complimentary role to in-situ and remote sensing measurement approaches. Reproducing all of the complex interactions is not feasible, but it is suggested that the physics of certain key processes can be established in a laboratory setting so that relevant fluid-dynamic and cloud-aerosol phenomena can be experimentally simulated and studied in a controlled environment. This report presents a high-level argument for significantly improved laboratory capability, and is meant to serve as a starting point for stimulating discussion within the climate science and other interested communities. Fremaux, Charles M. and Bushnell, Dennis M. Langley Research Center AEROSOLS; CLIMATE CHANGE; CLIMATE MODELS; REMOTE SENSING; CLOUDS (METEOROLOGY); GREENHOUSE EFFECT; CARBON DIOXIDE; METHANE; NITROUS OXIDES; CHLOROFLUOROCARBONS; RADIATIVE FORCING; OZONE
Author : Gabor Vali
Publisher :
ISBN 13 :
Total Pages : 46 pages
Book Rating : 4.:/5 (31 download)
Download or read book Report of the Experts Meeting on Interaction Between Aerosols and Clouds written by Gabor Vali and published by . This book was released on 1991 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt: Contained in this volume are the deliberations of the Experts Meeting on Interaction Between Clouds and Aerosols, held in Hampton, Virginia, 5-7 February 1991. Eight invited experts from universities, nonprofit institutions, research laboratories, and government agencies in France and the United States of America participated in the Meeting. Some of those who could not participate sent in their comments. The purpose of the Meeting was to bring together experts in measurements and impacts of interactions between clouds and aerosols to assess the current state of the art, and to make recommendations ofr developing a coordinated action plan for future work in these aspects of the International Global Aerosol Program (IGAP).--Preface.
Author : National Research Council
Publisher : National Academies Press
ISBN 13 : 0309175917
Total Pages : 179 pages
Book Rating : 4.3/5 (91 download)
Download or read book A Plan for a Research Program on Aerosol Radiative Forcing and Climate Change written by National Research Council and published by National Academies Press. This book was released on 1996-04-17 with total page 179 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book recommends the initiation of an "integrated" research program to study the role of aerosols in the predicted global climate change. Current understanding suggest that, even now, aerosols, primarily from anthropogenic sources, may be reducing the rate of warming caused by greenhouse gas emissions. In addition to specific research recommendations, this book forcefully argues for two kinds of research program integration: integration of the individual laboratory, field, and theoretical research activities and an integrated management structure that involves all of the concerned federal agencies.
Author : A. Pier Siebesma
Publisher : Cambridge University Press
ISBN 13 : 1108882781
Total Pages : 421 pages
Book Rating : 4.1/5 (88 download)
Download or read book Clouds and Climate written by A. Pier Siebesma and published by Cambridge University Press. This book was released on 2020-08-20 with total page 421 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cloud research is a rapidly developing branch of climate science that's vital to climate modelling. With new observational and simulation technologies our knowledge of clouds and their role in the warming climate is accelerating. This book provides a comprehensive overview of research on clouds and their role in our present and future climate, covering theoretical, observational, and modelling perspectives. Part I discusses clouds from three different perspectives: as particles, light and fluid. Part II describes our capability to model clouds, ranging from theoretical conceptual models to applied parameterised representations. Part III describes the interaction of clouds with the large-scale circulation in the tropics, mid-latitudes, and polar regions. Part IV describes how clouds are perturbed by aerosols, the land-surface, and global warming. Each chapter contains end-of-chapter exercises and further reading sections, making this an ideal resource for advanced students and researchers in climatology, atmospheric science, meteorology, and climate change.
Author : National Research Council
Publisher : National Academies Press
ISBN 13 : 0309133505
Total Pages : 222 pages
Book Rating : 4.3/5 (91 download)
Download or read book Radiative Forcing of Climate Change written by National Research Council and published by National Academies Press. This book was released on 2005-03-25 with total page 222 pages. Available in PDF, EPUB and Kindle. Book excerpt: Changes in climate are driven by natural and human-induced perturbations of the Earth's energy balance. These climate drivers or "forcings" include variations in greenhouse gases, aerosols, land use, and the amount of energy Earth receives from the Sun. Although climate throughout Earth's history has varied from "snowball" conditions with global ice cover to "hothouse" conditions when glaciers all but disappeared, the climate over the past 10,000 years has been remarkably stable and favorable to human civilization. Increasing evidence points to a large human impact on global climate over the past century. The report reviews current knowledge of climate forcings and recommends critical research needed to improve understanding. Whereas emphasis to date has been on how these climate forcings affect global mean temperature, the report finds that regional variation and climate impacts other than temperature deserve increased attention.
Author :
Publisher :
ISBN 13 :
Total Pages : 128 pages
Book Rating : 4.:/5 (327 download)
Download or read book Atmospheric Aerosol Properties and Climate Impacts written by and published by . This book was released on 2009 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Nasa Technical Reports Server (Ntrs)
Publisher : BiblioGov
ISBN 13 : 9781289170639
Total Pages : 44 pages
Book Rating : 4.1/5 (76 download)
Download or read book A State-Of-the-Art Experimental Laboratory for Cloud and Cloud-Aerosol Interaction Research written by Nasa Technical Reports Server (Ntrs) and published by BiblioGov. This book was released on 2013-07 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt: The state of the art for predicting climate changes due to increasing greenhouse gasses in the atmosphere with high accuracy is problematic. Confidence intervals on current long-term predictions (on the order of 100 years) are so large that the ability to make informed decisions with regard to optimum strategies for mitigating both the causes of climate change and its effects is in doubt. There is ample evidence in the literature that large sources of uncertainty in current climate models are various aerosol effects. One approach to furthering discovery as well as modeling, and verification and validation (V&V) for cloud-aerosol interactions is use of a large "cloud chamber" in a complimentary role to in-situ and remote sensing measurement approaches. Reproducing all of the complex interactions is not feasible, but it is suggested that the physics of certain key processes can be established in a laboratory setting so that relevant fluid-dynamic and cloud-aerosol phenomena can be experimentally simulated and studied in a controlled environment. This report presents a high-level argument for significantly improved laboratory capability, and is meant to serve as a starting point for stimulating discussion within the climate science and other interested communities.
Author : National Research Council
Publisher : National Academies Press
ISBN 13 : 0309095069
Total Pages : 223 pages
Book Rating : 4.3/5 (9 download)
Download or read book Radiative Forcing of Climate Change written by National Research Council and published by National Academies Press. This book was released on 2005-04-25 with total page 223 pages. Available in PDF, EPUB and Kindle. Book excerpt: Changes in climate are driven by natural and human-induced perturbations of the Earth's energy balance. These climate drivers or "forcings" include variations in greenhouse gases, aerosols, land use, and the amount of energy Earth receives from the Sun. Although climate throughout Earth's history has varied from "snowball" conditions with global ice cover to "hothouse" conditions when glaciers all but disappeared, the climate over the past 10,000 years has been remarkably stable and favorable to human civilization. Increasing evidence points to a large human impact on global climate over the past century. The report reviews current knowledge of climate forcings and recommends critical research needed to improve understanding. Whereas emphasis to date has been on how these climate forcings affect global mean temperature, the report finds that regional variation and climate impacts other than temperature deserve increased attention.
Author : Tanvir Islam
Publisher : Elsevier
ISBN 13 : 0128104384
Total Pages : 366 pages
Book Rating : 4.1/5 (281 download)
Download or read book Remote Sensing of Aerosols, Clouds, and Precipitation written by Tanvir Islam and published by Elsevier. This book was released on 2017-10-18 with total page 366 pages. Available in PDF, EPUB and Kindle. Book excerpt: Remote Sensing of Aerosols, Clouds, and Precipitation compiles recent advances in aerosol, cloud, and precipitation remote sensing from new satellite observations. The book examines a wide range of measurements from microwave (both active and passive), visible, and infrared portions of the spectrum. Contributors are experts conducting state-of-the-art research in atmospheric remote sensing using space, airborne, and ground-based datasets, focusing on supporting earth observation satellite missions for aerosol, cloud, and precipitation studies. A handy reference for scientists working in remote sensing, earth science, electromagnetics, climate physics, and space engineering. Valuable for operational forecasters, meteorologists, geospatial experts, modelers, and policymakers alike. Presents new approaches in the field, along with further research opportunities, based on the latest satellite data Focuses on how remote sensing systems can be designed/developed to solve outstanding problems in earth and atmospheric sciences Edited by a dynamic team of editors with a mixture of highly skilled and qualified authors offering world-leading expertise in the field
