The Life Cycle of TTL Cirrus PDF Download
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Author: Samantha M. Turbeville
Publisher:
ISBN:
Category :
Languages : en
Pages : 51
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Book Description
Thin cirrus in the tropics are important for climate because of their warming effect on the atmosphere and large spatiotemporal extent, coinciding with locations of deep convection. Tropical cirrus are difficult to observe due to their high altitude and thin optical depths. They are also difficult to simulate in conventional global climate models because of the coarse grid spacing and simplified parameterizations of deep convection and cirrus formation in such models. We investigate the representation of tropical cirrus in global storm-resolving models (GSRMs) because they have higher spatiotemporal resolution and explicit convection, which could provide a more accurate representation of cloud processes. This study uses GSRMs from the DYnamics of the Atmospheric general circulation Modeled On Non-hydrostatic Domains (DYAMOND) project. The aggregate life cycle of topical cirrus are analyzed using joint albedo-OLR histograms to determine the fidelity of models in capturing the observed distribution of cloud populations over representative tropical ocean and land regions. Some models generate more optically thick cirrus or anvils while thin cirrus dominate in other models. Model differences, likely driven by sub-grid processes such as ice microphysics, dominate over the more subtle regional shifts. Understanding the differences in the GSRMs is an important step toward reducing uncertainty in predictions of future warming that is generated by high cloud feedbacks.
Author: Samantha M. Turbeville
Publisher:
ISBN:
Category :
Languages : en
Pages : 51
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Book Description
Thin cirrus in the tropics are important for climate because of their warming effect on the atmosphere and large spatiotemporal extent, coinciding with locations of deep convection. Tropical cirrus are difficult to observe due to their high altitude and thin optical depths. They are also difficult to simulate in conventional global climate models because of the coarse grid spacing and simplified parameterizations of deep convection and cirrus formation in such models. We investigate the representation of tropical cirrus in global storm-resolving models (GSRMs) because they have higher spatiotemporal resolution and explicit convection, which could provide a more accurate representation of cloud processes. This study uses GSRMs from the DYnamics of the Atmospheric general circulation Modeled On Non-hydrostatic Domains (DYAMOND) project. The aggregate life cycle of topical cirrus are analyzed using joint albedo-OLR histograms to determine the fidelity of models in capturing the observed distribution of cloud populations over representative tropical ocean and land regions. Some models generate more optically thick cirrus or anvils while thin cirrus dominate in other models. Model differences, likely driven by sub-grid processes such as ice microphysics, dominate over the more subtle regional shifts. Understanding the differences in the GSRMs is an important step toward reducing uncertainty in predictions of future warming that is generated by high cloud feedbacks.
Author: Sylvia C. Sullivan
Publisher: John Wiley & Sons
ISBN: 1119700345
Category : Science
Languages : en
Pages : 371
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Book Description
Clouds and Their Climatic Impacts Clouds are an influential and complex element of Earth’s climate system. They evolve rapidly in time and exist over small spatial scales, but also affect global radiative balance and large-scale circulations. With more powerful models and extensive observations now at our disposal, the climate impact of clouds is receiving ever more research attention. Clouds and Their Climatic Impacts: Radiation, Circulation, and Precipitation presents an overview of our current understanding on various types of clouds and cloud systems and their multifaceted role in the radiative budget, circulation patterns, and rainfall. Volume highlights include: Interactions of aerosol with both liquid and ice clouds Surface and atmospheric cloud radiative feedbacks and effects Arctic, extratropical, and tropical clouds Cloud-circulation coupling at global, meso, and micro scales Precipitation efficiency, phase, and measurements The role of machine learning in understanding clouds and climate The American Geophysical Union promotes discovery in Earth and space science for the benefit of humanity. Its publications disseminate scientific knowledge and provide resources for researchers, students, and professionals.
Author:
Publisher:
ISBN:
Category : Artificial satellites in earth sciences
Languages : en
Pages : 384
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Book Description
Author: William R. Cotton
Publisher: Academic Press
ISBN: 0080916651
Category : Science
Languages : en
Pages : 826
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Book Description
Storm and Cloud Dynamics focuses on the dynamics of clouds and of precipitating mesoscale meteorological systems. Clouds and precipitating mesoscale systems represent some of the most important and scientifically exciting weather systems in the world. These are the systems that produce torrential rains, severe winds including downburst and tornadoes, hail, thunder and lightning, and major snow storms. Forecasting such storms represents a major challenge since they are too small to be adequately resolved by conventional observing networks and numerical prediction models. - Provides a complete treatment of clouds integrating the analysis of air motions with cloud structure, microphysics, and precipitation mechanics - Describes and explains the basic types of clouds and cloud systems that occur in the atmosphere-fog, stratus, stratocumulus, altocumulus, altostratus, cirrus, thunderstorms, tornadoes, waterspouts, orographically induced clouds, mesoscale convection complexes, hurricanes, fronts, and extratropical cyclones - Summarizes the fundamentals, both observational and theoretical, of atmospheric dynamics, thermodynamics, cloud microphysics, and radar meteorology, allowing each type of cloud to be examined in depth - Integrates the latest field observations, numerical model simulations, and theory - Supplies a theoretical treatment suitable for the advanced undergraduate or graduate level, as well as post-graduate
Author: Daniel Nenni
Publisher: Createspace Independent Publishing Platform
ISBN: 9781497525047
Category : Integrated circuits industry
Languages : en
Pages : 0
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Book Description
The purpose of this book is to illustrate the magnificence of the fabless semiconductor ecosystem, and to give credit where credit is due. We trace the history of the semiconductor industry from both a technical and business perspective. We argue that the development of the fabless business model was a key enabler of the growth in semiconductors since the mid-1980s. Because business models, as much as the technology, are what keep us thrilled with new gadgets year after year, we focus on the evolution of the electronics business. We also invited key players in the industry to contribute chapters. These "In Their Own Words" chapters allow the heavyweights of the industry to tell their corporate history for themselves, focusing on the industry developments (both in technology and business models) that made them successful, and how they in turn drive the further evolution of the semiconductor industry.
Author: K. Mohanakumar
Publisher: Springer Science & Business Media
ISBN: 1402082177
Category : Science
Languages : en
Pages : 424
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Book Description
Stratospheric processes play a signi?cant role in regulating the weather and c- mate of the Earth system. Solar radiation, which is the primary source of energy for the tropospheric weather systems, is absorbed by ozone when it passes through the stratosphere, thereby modulating the solar-forcing energy reaching into the t- posphere. The concentrations of the radiatively sensitive greenhouse gases present in the lower atmosphere, such as water vapor, carbon dioxide, and ozone, control the radiation balance of the atmosphere by the two-way interaction between the stratosphere and troposphere. The stratosphere is the transition region which interacts with the weather s- tems in the lower atmosphere and the richly ionized upper atmosphere. Therefore, this part of the atmosphere provides a long list of challenging scienti?c problems of basic nature involving its thermal structure, energetics, composition, dynamics, chemistry, and modeling. The lower stratosphere is very much linked dynamically, radiatively,and chemically with the upper troposphere,even though the temperature characteristics of these regions are different. The stratosphere is a region of high stability, rich in ozone and poor in water - por and temperature increases with altitude. The lower stratospheric ozone absorbs the harmful ultraviolet (UV) radiation from the sun and protects life on the Earth. On the other hand, the troposphere has high concentrations of water vapor, is low in ozone, and temperature decreases with altitude. The convective activity is more in the troposphere than in the stratosphere.
Author: Mekonnen Gebremichael
Publisher: Springer Science & Business Media
ISBN: 904812915X
Category : Science
Languages : en
Pages : 327
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Book Description
With contributions from a panel of researchers from a wide range of fields, the chapters of this book focus on evaluating the potential, utility and application of high resolution satellite precipitation products in relation to surface hydrology.
Author: Rolf Müller (physicien.)
Publisher: Royal Society of Chemistry
ISBN: 1849730024
Category : Science
Languages : en
Pages : 347
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Book Description
In recent years, several new concepts have emerged in the field of stratospheric ozone depletion, creating a need for a concise in-depth publication covering the ozone-climate issue. This monograph fills that void in the literature and gives detailed treatment of recent advances in the field of stratospheric ozone depletion. It puts particular emphasis on the coupling between changes in the ozone layer and atmospheric change caused by a changing climate. The book, written by leading experts in the field, brings the reader the most recent research in this area and fills the gap between advanced textbooks and assessments.
Author: Neal Glover
Publisher:
ISBN:
Category : Error-correcting codes (Information theory)
Languages : en
Pages : 506
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Book Description
Author: Ken S. Carslaw
Publisher: Elsevier
ISBN: 0128231726
Category : Science
Languages : en
Pages : 856
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Book Description
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
