Download or read book High Velocity Cloud Interactions with Their Ambient Environment written by Jeffrey Alan Gritton and published by . This book was released on 2017 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt: High velocity clouds (HVCs) are collections of gas around the Milky Way galaxy and other galaxies with masses ranging from tens of thousands of solar masses to millions of solar masses. These cool clouds can potentially supply new cool material to the disks of galaxies. Many unanswered questions exist about HVCs; e.g. "How do HVCs form?", "How long can HVCs survive while interacting with the hot ambient material?", and "How do HVCs affect, and how are they affected by, our Galaxy?" Using detailed multi-dimensional numerical simulations, this study focuses on how HVCs interact with their ambient environments and how these interactions affect the cloud's metal concentration, condensation and evaporation rates, and morphology. Using the results of these simulations this study suggests methods to determine the origins of HVCs based on observed metal concentrations, and how initial parameter space affects the condensation of ambient material onto HVCs.
Download or read book High Velocity Clouds written by Hugo van Woerden and published by Springer Science & Business Media. This book was released on 2006-01-28 with total page 414 pages. Available in PDF, EPUB and Kindle. Book excerpt: On the occasion of the retirement of Ulrich Schwarz, a symposium was held in Groningen in May of 1996, celebrating his contributions to the study of the int- stellar medium, including his work on the high-velocity clouds. The coming together of many specialists in the latter ?eld prompted the idea of compiling a book c- taining their contributions, and summarizing the status of our understanding of the high-velocity cloud phenomenon. This seemed especially worthwhile at the time, since many exciting developments were taking place. After the discovery of some H i clouds with high velocities, about 40 years ago, the subject had been dominated by 21-cm observations of H i emission. Starting in the mid-1980s much progress was being made because of the availability of new instruments, such as large ground-based optical telescopes and UV observatories in space. The connections between the work on high-velocity clouds and other studies of the properties of the (hot) interstellar medium also became clearer.
Download or read book A Study of Space Station Contamination Effects written by Marsha R. Torr and published by . This book was released on 1988 with total page 158 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Interaction of Stars with Their Environment written by Viktor Tóth and published by . This book was released on 1997 with total page 276 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book On the Interactions Between Clouds and Atmospheric Circulation in the Tropics and Midlatitudes written by Casey J. Wall and published by . This book was released on 2018 with total page 158 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cloud radiative feedbacks are the largest source of uncertainty in climate projections. It has been shown that narrowing this uncertainty will require a better understanding of the two-way interactions between clouds and the atmospheric circulation. Understanding cloud-circulation interactions and constraining cloud-climate feedbacks are therefore important and urgent goals in climate research. These topics are investigated in this thesis. In Part A, satellite observations are used to study the interactions between clouds and atmospheric circulation over the Southern Ocean. Atmospheric motions modify the boundary-layer stratification, inversion strength, and large-scale vertical motion, and in doing so, modulate clouds. Surface heat fluxes also significantly modulate shallow clouds. The ability of climate models to simulate these processes is investigated. Climate models consistently struggle to accurately represent shallow clouds in subfreezing environments. The implications of these model biases for uncertainty in cloud-climate feedbacks is discussed. In Part B, cloud-circulation interactions are investigated over the warm and convective tropical oceans. In these regions, the average shortwave and longwave cloud radiative effects are individually large but nearly cancel at the top of the atmosphere. It has been hypothesized that this cancellation is caused by two-way interactions between clouds, atmospheric circulation, and sea surface temperature (SST). This hypothesis is investigated using a variety of satellite observations and climate model simulations. First, observations from polar-orbiting satellites are used to investigate the relationships between large-scale circulation and cloud properties. Next, a cloud-tracking algorithm is applied to geostationary satellite observations and is used to study the evolution of clouds, the ambient environment, and the underlying SST over the life cycle of convective storms. Finally, a climate model in global radiative-convective equilibrium configuration is used to investigate the impact of cloud-circulation-SST interactions on tropical climate. All three studies are consistent with the hypothesis that cloud-circulation-SST interactions cause the close balance in cloud radiative effects over warm tropical oceans. It is hypothesized that this mechanism could constrain cloud-climate feedbacks in the warm and convective tropics.
Download or read book Literature 1989 Part 1 written by Astronomisches Rechen-Institut and published by Springer Science & Business Media. This book was released on 2013-11-11 with total page 1433 pages. Available in PDF, EPUB and Kindle. Book excerpt: From the reviews: "Astronomy and Astrophysics Abstracts has appeared in semi-annual volumes since 1969 and it has already become one of the fundemental publications in the fields of astronomy, astrophysics and neighbouring sciences. It is the most important English-language abstracting journal in the mentioned branches. ...The abstracts are classified under more than a hundred subject categories, thus permitting a quick survey of the whole extended material. The AAA is a valuable and important publication for all students and scientists working in the fields of astronomy and related sciences. As such it represents a necessary ingredient of any astronomical library all over the world." Space Science Review# "Dividing the whole field plus related subjects into 108 categories, each work is numbered and most are accompanied by brief abstracts. Fairly comprehensive cross-referencing links relevant papers to more than one category, and exhaustive author and subject indices are to be found at the back, making the catalogues easy to use. The series appears to be so complete in its coverage and always less than a year out of date that I shall certainly have to make a little more space on those shelves for future volumes." The Observatory Magazine#
Download or read book Ambient Assisted Living and Enhanced Living Environments written by Ciprian Dobre and published by Butterworth-Heinemann. This book was released on 2016-11-02 with total page 554 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ambient Assisted Living and Enhanced Living Environments: Principles, Technologies and Control separates the theoretical concepts concerning the design of such systems from their real-world implementations. For each important topic, the book bridges theory and practice, introducing the instruments needed by professionals in their activities. To this aim, topics are presented in a logical sequence, with the introduction of each topic motivated by the need to respond to claims and requirements from a wide range of AAL/ELE applications. The advantages and limitations of each model or technology are presented through concrete case studies for AAL/ELE systems. The book also presents up-to-date technological solutions to the main aspects regarding AAL/ELE systems and applications, a highly dynamic scientific domain that has gained much interest in the world of IT in the last decade. In addition, readers will find discussions on recent AAL/ELE technologies that were designed to solve some of the thorniest business problems that affect applications in areas such as health and medical supply, smart city and smart housing, Big Data and Internet of Things, and many more. Introduces readers to technologies supporting the development of Ambient Assisted Living applications Explains state-of-the-art technological solutions for the main issues regarding AAL and Enhanced Living Environments Reports the development process of scientific and commercial applications and platforms that support AAL and ELE Identifies the advanced solutions in the context of Enhanced Living Environments
Download or read book High velocity Clouds written by B. P. Wakker and published by . This book was released on 1997 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Shallow Clouds Water Vapor Circulation and Climate Sensitivity written by Robert Pincus and published by Springer. This book was released on 2018-06-12 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume presents a series of overview articles arising from a workshop exploring the links among shallow clouds, water vapor, circulation, and climate sensitivity. It provides a state-of-the art synthesis of understanding about the coupling of clouds and water vapor to the large-scale circulation. The emphasis is on two phenomena, namely the self-aggregation of deep convection and interactions between low clouds and the large-scale environment, with direct links to the sensitivity of climate to radiative perturbations. Each subject is approached using simulations, observations, and synthesizing theory; particular attention is paid to opportunities offered by new remote-sensing technologies, some still prospective. The collection provides a thorough grounding in topics representing one of the World Climate Research Program’s Grand Challenges. Previously published in Surveys in Geophysics, Volume 38, Issue 6, 2017 The aritcles “Observing Convective Aggregation”, “An Observational View of Relationships Between Moisture Aggregation, Cloud, and Radiative Heating Profiles”, “Implications of Warm Rain in Shallow Cumulus and Congestus Clouds for Large-Scale Circulations”, “A Survey of Precipitation-Induced Atmospheric Cold Pools over Oceans and Their Interactions with the Larger-Scale Environment”, “Low-Cloud Feedbacks from Cloud-Controlling Factors: A Review”, “Mechanisms and Model Diversity of Trade-Wind Shallow Cumulus Cloud Feedbacks: A Review”, “Structure and Dynamical Influence of Water Vapor in the Lower Tropical Troposphere”, “Emerging Technologies and Synergies for Airborne and Space-Based Measurements of Water Vapor Profiles”, “Observational Constraints on Cloud Feedbacks: The Role of Active Satellite Sensors”, and “EUREC4A: A Field Campaign to Elucidate the Couplings Between Clouds, Convection and Circulation” are available as open access articles under a CC BY 4.0 license at link.springer.com.
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1994 with total page 372 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Eddy current interactions in the ocean and their impacts on climate ecology and biology written by Feng Nan and published by Frontiers Media SA. This book was released on 2023-08-07 with total page 226 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Interaction of Variable Stars with Their Environment written by R. Kippenhahn and published by . This book was released on 1977 with total page 678 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Storm and Cloud Dynamics written by William R. Cotton and published by Academic Press. This book was released on 2010-12-21 with total page 826 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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
Download or read book The Birth of Star Clusters written by Steven Stahler and published by Springer. This book was released on 2017-11-04 with total page 205 pages. Available in PDF, EPUB and Kindle. Book excerpt: All stars are born in groups. The origin of these groups has long been a key question in astronomy, one that interests researchers in star formation, the interstellar medium, and cosmology. This volume summarizes current progress in the field, and includes contributions from both theorists and observers. Star clusters appear with a wide range of properties, and are born in a variety of physical conditions. Yet the key question remains: How do diffuse clouds of gas condense into the collections of luminous objects we call stars? This book will benefit graduate students, newcomers to the field, and also experienced scientists seeking a convenient reference.
Download or read book Meteor Showers and Their Parent Comets written by Petrus Matheus Marie Jenniskens and published by Cambridge University Press. This book was released on 2006-09-14 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt: Publisher description
Download or read book Herbig Haro Flows and the Birth of Low Mass Stars written by Bo Reipurth and published by Springer Science & Business Media. This book was released on 2013-12-01 with total page 606 pages. Available in PDF, EPUB and Kindle. Book excerpt: Herbig-Haro objects were discovered 50 years ago, and during this half century they have developed from being mysterious small nebulae to be coming an important phenomenon in star formation. Indeed, HH flows are now recognized not only as fascinating astrophysical laboratories involving shock physics and chemistry, hydrodynamics and radiation processes, but it has gradually been realized that HH flows hold essential clues to the birth and early evolution of low mass stars. IAU Symposium No. 182 on Herbig-Haro Flows and the Birth of Low Mass Stars were held from January 20 to 24, 1997 in Chamonix in the french alps. A total of 178 researchers from 26 countries met to discuss our present level of understanding of Herbig-Haro flows and their relation to disk accretion events and T Tauri winds and other outflow phenomena like molecular outflows, embedded molecular hydrogen flows and radio jets. The present book contains the manuscripts from the oral contributions of the symposium. The poster papers were printed in a separate volume Low Mass Star Formation - from Infall to Outflow, edited by Fabien Malbet and Alain Castets, which was distributed at the beginning of the meeting. Together these two books document the vigorous state and the scientific appeal which research into Herbig-Haro flows and related issues in star formation enjoys today, observationally as well as theoretically.
Download or read book White Dwarf Atmospheres and Circumstellar Environments written by Donald W. Hoard and published by John Wiley & Sons. This book was released on 2012-09-19 with total page 342 pages. Available in PDF, EPUB and Kindle. Book excerpt: Written by selected astronomers at the forefront of their fields, this timely and novel book compiles the latest results from research on white dwarf stars, complementing existing literature by focusing on fascinating new developments in our understanding of the atmospheric and circumstellar environments of these stellar remnants. Complete with a thorough refresher on the observational characteristics and physical basis for white dwarf classification, this is a must-have resource for researchers interested in the late stages of stellar evolution, circumstellar dust and nebulae, and the future of our own Solar System.
