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Modeling Surface Atmosphere Exchange Of Trace Gases And Energy Within And Above The Amazon Rain Forest
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Book Synopsis Modeling Surface-atmosphere Exchange of Trace Gases and Energy Within and Above the Amazon Rain Forest by :
Download or read book Modeling Surface-atmosphere Exchange of Trace Gases and Energy Within and Above the Amazon Rain Forest written by and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The present dissertation focuses on the biogeochemistry of the vegetation layer (canopy) and feedbacks between physiological and environmental processes which affect the climate and chemistry of the lower atmosphere. A main task is the quantification of vertical exchange of energy and trace gases with theoretical concepts considering the links between the partitioning of energy at the leaf surface, the uptake of CO2, the emission of biogenic volatile organic compounds (VOC), the dry deposition of ozone, the vertical transport within the canopy and the ecosystem net exchange (vertical fluxes). A sophisticated multi-layer canopy model combining the coupled equations of the surface energy balance and CO2 assimilation at the leaf level with a Lagrangian description of vertical transport at the canopy level is developed, implemented, and parameterized for the Amazon rain forest and applied to a site in Rondonia, southwest Amazonia. The inferred parameterizations include the vertical distribution of leaf area density, a normalized profile of mean horizontal wind speed, the light acclimation of photosynthetic capacity, and the soil surface exchange of heat and CO2. Furthermore, the calculations related to leaf photosynthesis, stomatal conductance and the attenuation of radiation within the canopy are evaluated with field measurements. The vertical transport scheme is evaluated in detail using 222-Radon measurements at a rain forest site near Manaus. The forward and inverse solution of the Lagrangian dispersion model are assessed by comparing the observed and predicted concentration profiles and soil fluxes, respectively. A new approach is derived to quantify the uncertainties of the inverse approach from the uncertainties of the input concentration profiles. For nighttime conditions, a modified turbulence parameterization is proposed considering nighttime free convection in the lower canopy and resulting in a much lower canopy residence time compared to earlier estimates.
Book Synopsis Modelling Surface-atmosphere Exchange of Trace Gases and Energy Within and Above the Amazon Rain Forest by : Eric Simon
Download or read book Modelling Surface-atmosphere Exchange of Trace Gases and Energy Within and Above the Amazon Rain Forest written by Eric Simon and published by . This book was released on 2004 with total page 177 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Modelling Surface-atmosphere Exchange of Trace Gases and Energy Within and Above the Amazon Rain Forest by : Eric Simon
Download or read book Modelling Surface-atmosphere Exchange of Trace Gases and Energy Within and Above the Amazon Rain Forest written by Eric Simon and published by . This book was released on 2004 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Review and Integration of Biosphere-Atmosphere Modelling of Reactive Trace Gases and Volatile Aerosols by : Raia Silvia Massad
Download or read book Review and Integration of Biosphere-Atmosphere Modelling of Reactive Trace Gases and Volatile Aerosols written by Raia Silvia Massad and published by Springer. This book was released on 2015-07-16 with total page 231 pages. Available in PDF, EPUB and Kindle. Book excerpt: When considering biosphere–atmosphere exchange of trace gases and volatile aerosols, significant advances have been made both from an experimental and modelling point of view and on several scales. This was particularly stimulated by the availability of new datasets generated from improvements in analytical methods and flux measurement techniques. Recent research advances allow us, not only to identify major mechanisms and factors affecting the exchanges between the biosphere and the atmosphere, but also to recognize several gaps in the methodologies used in accounting for emissions and deposition in landscape and global scale models. This work aims at (i) reviewing exchange processes and modelling schemes, parameterisations and datasets, (ii) presenting a common conceptual framework to model soil-vegetation-atmosphere exchange of reactive trace gases and aerosols accounting for in-canopy transfer chemical interactions and (iii) discussing the key elements of the agreed framework.
Download or read book Earth Resources written by and published by . This book was released on 1987 with total page 590 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Geophysiology of Amazonia by : Robert E. Dickinson
Download or read book The Geophysiology of Amazonia written by Robert E. Dickinson and published by Wiley-Interscience. This book was released on 1987-02-13 with total page 554 pages. Available in PDF, EPUB and Kindle. Book excerpt: Climate, vegetation, and human interactions in the Amazon. Introduction to vegetation and climate interactions in the humid tropics. Geophysiology: a new look at earth science. Climate, natural vegetation, and soils in Amazonia: an overview. Causes of deforestation in the Brazilian Amazon. Dam building the Tropics: some environmental and social consequences. Species diversity, phenology, plant - animal interactions, and their correlation with climate, as illustrated by the Brazil Nut family (Lecythidaceae). Climate change in the humid tropics, especially amazonia, over th last twenty thousand years. Biogeochemical cycles in the tropics. Role of the tropics in atmospheric chemistry. Contribution of tropical ecosystems to the global budgets of trace gases, especially CH4, H2, CO, and N2O. Influence of a tropical forest on air chemistry. Biological processes and productivity of soils in the humid tropics. Effects of deforestation on soil properties and microclimate of a high rain forest in Southern Nigeria. Element cycling in the Amazon Basin: a riverine perspective. Climate, micrometeorology, ant the hydrological cycle in the moist tropics. Micrometeorology of an Amazonian Rain Forest. The forest and the hydrological cycle. Modeling effects of vegetation on climate. Tropical climate and general circulation: its susceptibility to human intervention. Interactions between convective and large-scale motions over Amazonia. On the dynamic climatology of the Amazon Basin and associated rain-producing mechanisms. General circulation modeling and the tropics. Effects of change in land use on climate in the humid tropics.
Book Synopsis Journal of Geophysical Research by :
Download or read book Journal of Geophysical Research written by and published by . This book was released on 2002 with total page 500 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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 Tropical Forests and Global Atmospheric Change by : Yadvinder Malhi
Download or read book Tropical Forests and Global Atmospheric Change written by Yadvinder Malhi and published by OUP Oxford. This book was released on 2005-06-30 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt: Tropical forests represent the world's most biodiverse ecosystems and play a key role in hydrology, carbon storage and exchange. Many of the human-induced pressures these regions are facing, e.g. fragmentation and deforestation, have been widely reported and well documented. However, there have been surprisingly few efforts to synthesize cutting-edge science in the area of tropical forest interaction with atmospheric change. At a time when our global atmosphere is undergoing a period of rapid change, both in terms of climate and in the cycling of essential elements such as carbon and nitrogen, a thorough and up-to-date analysis is now timely. This research level text, suitable for graduate level students as well as professional researchers in plant ecology, tropical forestry, climate change science, and conservation biology, explores the vigorous contemporary debate as to how rapidly tropical forests may be affected by atmospheric change, and what this may mean for their future.
Download or read book General Technical Report RMRS written by and published by . This book was released on 2000 with total page 582 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Atmosphere, Weather and Climate by : Roger Graham Barry
Download or read book Atmosphere, Weather and Climate written by Roger Graham Barry and published by CUP Archive. This book was released on 1992 with total page 454 pages. Available in PDF, EPUB and Kindle. Book excerpt: An introduction to weather processes and climatic conditions. Beginning with a discussion of atmospheric composition and energy, the authors turn to manifestations and circulation of atmospheric moisture, including atmospheric stability and precipitation patterns in space and time. "Atmosphere, Weather and Climate" provides a thorough introduction to weather processes and climatic conditions. Since the last edition, the recognition of the reality and possible effects of human activities on the environment has revolutionized attitudes to the study of atmosphere and of world climate.
Book Synopsis Probing the Chemistry/climate Connection by :
Download or read book Probing the Chemistry/climate Connection written by and published by . This book was released on 1990 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book EOS Science Plan written by and published by . This book was released on 1999 with total page 406 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Examining Energy and the Environment around the World by : Bruce E. Johansen
Download or read book Examining Energy and the Environment around the World written by Bruce E. Johansen and published by Bloomsbury Publishing USA. This book was released on 2019-04-01 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume addresses ten issues pertaining to energy and the environment, such as climate change, fossil fuels, endangered species, and renewable energy, and examines how these issues are affecting countries around the world. In the industrial age, first powered by coal and then more often by oil, environmental degradation nearly inevitably followed resource exploitation and energy production. This book examines environmental issues in specific countries around the world as well as solutions some of these countries have discovered in order to help save the environment. This volume includes 10 chapters, each addressing a specific issue relating to energy and the environment as it pertains to a variety of countries, including toxic chemicals, pollution, deforestation, and climate change. Each chapter begins with an introduction to the issue. Following the chapter introduction, each chapter highlights that issue in eight countries and provides historic perspective. This work provides an overview for high school students and college students at the undergraduate level on 10 important topics that address matters relating to energy and the environment in the 21st century.
Book Synopsis Trace Gas Exchange in Forest Ecosystems by : R. Gasche
Download or read book Trace Gas Exchange in Forest Ecosystems written by R. Gasche and published by Springer. This book was released on 2010-12-15 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume summarizes the current knowledge on the exchange of trace gases between forests and the atmosphere with the restriction that exclusively carbon and nitrogen compounds are included. For this purpose the volume brings together and interconnects knowledge from different disciplines of biological and atmospheric sciences. It covers microbial and plant processes involved in the production and consumption of these trace gases; the exchange processes between forest soils and vegetation on the one hand, and the atmosphere on the other hand; the fate of the trace gases exchanged inside the atmosphere as well as environmental influences on the exchange of trace gases between forest ecosystems and the atmosphere. With this interdisciplinary approach the volume provides the background for an evaluation of the exchange of trace gases between forest ecosystems and the atmosphere and man-made disturbances of this exchange.
Book Synopsis The Impact of Climate Change on America's Forests by :
Download or read book The Impact of Climate Change on America's Forests written by and published by . This book was released on 2000 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract: "This report documents trends and impacts of climate change on America's forests as required by the Renewable Resources Planning Act of 1974. Recent research on the impact of climate and elevated atmospheric carbon dioxide on plant productivity is synthesized. Modeling analyses explore the potential impact of climate changes on forests, wood products, and carbon in the United States."
Author :Intergovernmental Panel on Climate Change Publisher :Cambridge University Press ISBN 13 :0521438292 Total Pages :220 pages Book Rating :4.5/5 (214 download)
Book Synopsis Climate Change 1992 by : Intergovernmental Panel on Climate Change
Download or read book Climate Change 1992 written by Intergovernmental Panel on Climate Change and published by Cambridge University Press. This book was released on 1992-05-28 with total page 220 pages. Available in PDF, EPUB and Kindle. Book excerpt: An essential reference and companion to the 1990 IPCC Report on Climate Change.
