Download or read book Orbital Rotational and Climatic Interactions written by Bruce G. Bills and published by . This book was released on 1992 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt: Topics include orbital and rotational dynamics, paleoclimate data analysis and modeling, solid-Earth deformation studies, and paleomagnetic analyses. The primary objective was to arrive at a better understanding of the interactions between the orbital, rotational, and climatic variations of the Earth.
Download or read book Orbital Rotational and Climatic Interactions written by Bruce G. Bills and published by . This book was released on 1993 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Orbital Rotational and Climatic Interactions written by and published by . This book was released on 1993 with total page 115 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Orbital Rotational and Climatic Interactions written by and published by . This book was released on 1993 with total page 115 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Orbital rotational and climatic interactions written by Bruce G. Bills and published by . This book was released on 1993 with total page 115 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1994 with total page 804 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
Download or read book Interactions Between Physics and Dynamics of Solar System Bodies written by E. Bois and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 416 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fans of "Asterix the Gallic" know well that the only fear of people in Brittany is that the sky falls upon their head. So it must have been a shock for them (the fans of Asterix) to learn that a horde of Physicists and Dynamicists (some of them being actually Roman - ils sont fous ces Romains!) invaded the bay of Saint-Brieuc and spend a full week conjuring all the nastiness that the sky has in reserve, revelling in the horrors hidden beyond the blue dome; they talked with delight about "asteroids", "comets" and "meteor streams"; they grinned at the idea of "artificial satellites", these pots and pans of space always ready to fall upon you; some of them said strange things about the Moon, the planets, and evoked the "rings" of Saturn or of some other of their gods. One evening, a Roman from Pisa went as far as cornering some inhabitants in the large hut they used for their witchcraft and filled them with terror by describing the fate of the poor dinosaurs victims of a particularly nasty asteroid (or was it a comet?). You will be surprized to learn that Bretons did not exact a spectacular revenge for these offenses. On the contrary.
Download or read book The Effect of Star planet Interactions on Planetary Climate written by Aomawa L. Shields and published by . This book was released on 2014 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt: The goal of the work presented here is to explore the unique interactions between a host star, an orbiting planet, and additional planets in a stellar system, and to develop and test methods that include both radiative and gravitational effects on planetary climate and habitability. These methods can then be used to identify and assess the possible climates of potentially habitable planets in observed planetary systems. In this work I explored key star-planet interactions using a hierarchy of models, which I modifed to incorporate the spectrum of stars of different spectral types. Using a 1-D energy-balance climate model, a 1-D line-by-line, radiative-transfer model, and a 3-D general circulation model, I simulated planets covered by ocean, land, and water ice of varying grain size, with incident radiation from stars of different spectral types. I find that terrestrial planets orbiting stars with higher near-UV radiation exhibit a stronger ice-albedo feedback. Ice extent is much greater on a planet orbiting an F-dwarf star than on a planet orbiting a G-dwarf star at an equivalent flux distance, and ice-covered conditions occur on an F-dwarf planet with only a 2% reduction in instellation (incident stellar radiation) relative to the present instellation on Earth, assuming fixed CO2 (present atmospheric level on Earth). A similar planet orbiting the Sun at an equivalent flux distance requires an 8% reduction in instellation, while a planet orbiting an M-dwarf star requires an additional 19% reduction in instellation to become ice-covered, equivalent to 73% of the modern solar constant. The reduction in instellation must be larger for planets orbiting cooler stars due in large part to the stronger absorption of longer-wavelength radiation by icy surfaces on these planets, in addition to stronger absorption by water vapor, CO2, and clouds in their atmospheres, providing increased downwelling longwave radiation. The surface ice-albedo feedback effect becomes less important at the outer edge of the habitable zone, where atmospheric CO2 can be expected to be high. I show that ~3-10 bars of CO2 will entirely mask the climatic effect of ice and snow, leaving the traditional outer limit of the habitable zone unaffected by the spectral dependence of water ice and snow albedo. Simulations of the equilibrium climate response of a planet to increasing instellation from an F-, G-, or M-dwarf star indicate that the exit out of global ice cover is also sensitive to host star spectral energy distribution. Under fixed CO2 conditions, a planet orbiting an M-dwarf star exhibits a smaller resistance to melting out of a frozen state, requiring a smaller instellation to initiate deglaciation than planets orbiting hotter, brighter stars. This is due to the combined effects of surface ice and snow absorption of the large fraction of near-IR radiation emitted by M-dwarfs, and atmospheric near-IR absorption, which weakens the Hadley circulation, reducing the climate hysteresis (the range over which multiple stable equilibia are possible) of M-dwarf planets. Given their greater climatic stability, planets orbiting cooler, lower-mass stars may be the best candidates for long-term habitability and life beyond the Solar System. As lower-mass stars are likely candidates to host multiple rocky planets, it is important to consider whether gravitational interactions among planets may have significant effects on climate and habitability over long timescales. Using an n-body integrator with inputs from a method I developed to determine the locations of all planets in a given system at the same epoch using transit timing data, a specific case is explored- that of Kepler-62f (Borucki et al. 2013), a potentially habitable planet in a five-planet system orbiting a K-dwarf star. The maximum stable initial eccentricity possible for Kepler-62f is identified as e = 0.32. Simulations using a 3-D GCM indicate that Kepler-62f would have areas of the planet with surface temperatures above the freezing point of water with 1 bar or more of CO2 in its atmosphere. If it has an active carbon cycle, Kepler-62f could have ample amounts of greenhouse gases in its atmosphere to maintain atmospheric stability and habitable surface conditions while staying well below the maximum CO2 greenhouse limit. In a low-CO2 case (Earth-like levels), increases in planetary obliquity and orbital eccentricity coupled with an orbital configuration that places the summer solstice at or near pericenter generate regions of the planet with above-freezing surface temperatures, which may cause surface melting of an ice sheet formed during an annual cycle. If Kepler-62f is synchronously rotating and has an ocean, significant cloud cover could develop at the substellar point, increasing planetary albedo and reducing surface temperatures. The methods presented here serve as tested tools that can be used to assess the possible climates of potentially habitable planets in systems with a wide range of orbital architectures as they are discovered.
Download or read book Climate Analysis written by Chester F. Ropelewski and published by Cambridge University Press. This book was released on 2019-01-17 with total page 391 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sensational images and stories about variations in Earth's climate and their impacts on society are pervasive in the media. The scientific basis for these stories is often not understood by the general public, nor even by those with a scientific background in fields other than climate science. This book is a comprehensive resource that will enable the reader to understand and appreciate the significance of the flood of climate information. It is an excellent non-mathematical resource for learning the fundamentals of climate analysis, as well as a reference for non-climate experts that need to use climate information and data. The focus is on the basics of the climate system, how climate is observed and how the observations are transformed into datasets useful for monitoring the climate. Each chapter contains Discussion Questions. This is an invaluable textbook on climate analysis for advanced students, and a reference textbook for researchers and practitioners.
Download or read book LPI Technical Report written by and published by . This book was released on 1992 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Milankovitch and Climate written by A.L. Berger and published by Springer. This book was released on 2013-01-02 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Proceedings of the NATO Advanced Research Workshop, Palisades, New York, U.S.A., November 30-December 4, 1982
Download or read book Visualizing Weather and Climate written by Bruce Anderson and published by John Wiley & Sons. This book was released on 2008-09-22 with total page 530 pages. Available in PDF, EPUB and Kindle. Book excerpt: Visualizing Weather and Climate Change will capture the reader's interest in weather and climate and then use that interest to engage them in activities that demonstrate the science that serves as the basis of the discipline. Sections such as Eye on the Atmosphere use beautiful imagery to help them see the atmosphere through the eyes of a meteorologist and ask scientific questions that place significant features in atmospheric context. It also includes expanded coverage of global change and recent phenomena. Chapter summaries, self-tests and critical thinking questions help prepare readers for quizzes and tests while the illustrated case studies offer a wide variety of in-depth examinations that address important issues in the field of environmental science.
Download or read book Government Reports Announcements Index written by and published by . This book was released on 1994-05 with total page 588 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Quaternary Climates Environments and Magnetism written by Barbara A. Maher and published by Cambridge University Press. This book was released on 1999-12-13 with total page 412 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Quaternary has been a period of major climatic and environmental oscillations, and our knowledge of these past variations is important for our understanding of the possible impact of human activity on the present-day environment. First published in 1999, Quaternary Climates, Environments and Magnetism presents an account of the rich variety of uses of magnetic measurements in the environmental geosciences. Ten chapters by leading world authorities describe the highlights of environmental magnetic work during the last decade and identify directions for future research. Emphasis is placed on a multidisciplinary approach to achieve a more thorough understanding of the environmental processes involved. This volume will be of interest to research scientists from a wide range of disciplines working on Quaternary environments, including earth and environmental sciences, physical geology, geography and palaeoclimatology. It will also be valuable as a supplementary text for graduates and advanced undergraduates.
Download or read book The Atmosphere and Climate of Mars written by Robert M. Haberle and published by Cambridge University Press. This book was released on 2017-06-29 with total page 613 pages. Available in PDF, EPUB and Kindle. Book excerpt: Humanity has long been fascinated by the planet Mars. Was its climate ever conducive to life? What is the atmosphere like today and why did it change so dramatically over time? Eleven spacecraft have successfully flown to Mars since the Viking mission of the 1970s and early 1980s. These orbiters, landers and rovers have generated vast amounts of data that now span a Martian decade (roughly eighteen years). This new volume brings together the many new ideas about the atmosphere and climate system that have emerged, including the complex interplay of the volatile and dust cycles, the atmosphere-surface interactions that connect them over time, and the diversity of the planet's environment and its complex history. Including tutorials and explanations of complicated ideas, students, researchers and non-specialists alike are able to use this resource to gain a thorough and up-to-date understanding of this most Earth-like of planetary neighbours.
Download or read book Natural Decadal Climate Variability written by Vikram M. Mehta and published by CRC Press. This book was released on 2017-03-16 with total page 345 pages. Available in PDF, EPUB and Kindle. Book excerpt: Natural Decadal Climate Variability: Societal Impacts is an important work for understanding the natural decadal climate variability (DCV), a phenomenon which has made long lasting impacts on civilizations, especially on water availability and agriculture. This book comprehensively covers multiyear to decadal variations in instrument measured precipitation and temperature, water availability and river flows, crop production, agricultural irrigation, inland water-borne transportation, hydroelectricity generation, and fish and crustacean captures since the 1960s. A longer term perspective is provided with the use of multi-century data on dry and wet epochs based on tree ring information, and corroborating evidence from other literature. This valuable work will benefit climate scientists, meteorologists, hydrologists, agronomists, water transportation planners, resource economists, policymakers, professors, and graduate students and anyone else who has an interest in learning how natural climate phenomena has influenced societies for at least the past 1000 years.
Download or read book The Global 2000 Report to the President entering the Twenty first Century written by Council on Environmental Quality (U.S.) and published by . This book was released on 1980 with total page 900 pages. Available in PDF, EPUB and Kindle. Book excerpt:
