Glaciers of South America

Glaciers of South America PDF Author: Richard S. Williams (Jr.)
Publisher:
ISBN:
Category : Africa
Languages : en
Pages : 244

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Book Description

Glaciers of South America

Glaciers of South America PDF Author: Richard S. Williams (Jr.)
Publisher:
ISBN:
Category : Africa
Languages : en
Pages : 244

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Book Description


South America

South America PDF Author: Richard S. Williams, Jr.
Publisher:
ISBN: 9780756702335
Category :
Languages : en
Pages : 200

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Book Description
Landsat satellite images make possible comparative 2-dimensional measurements of changes in our planet over time. This report includes full-color and B&W satellite photos of the glaciers of Bolivia, Venezuela, Colombia, Ecuador, Peru, Chile and Argentina, including the Dry and Wet Andes and a section on Rock Glaciers. The photos are accompanied by essays by prominent scientists. Landsat images, together with aerial photos and maps, are used to produce glacier inventories, define glacier locations, support on-going field studies of glacier dynamics, and monitor the extensive glacier recession that has taken place and is continuing in many parts of South America.

Past Climate Variability in South America and Surrounding Regions

Past Climate Variability in South America and Surrounding Regions PDF Author: Francoise Vimeux
Publisher: Springer Science & Business Media
ISBN: 9789048126729
Category : Science
Languages : en
Pages : 418

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Book Description
South America is a unique place where a number of past climate archives are ava- able from tropical to high latitude regions. It thus offers a unique opportunity to explore past climate variability along a latitudinal transect from the Equator to Polar regions and to study climate teleconnections. Most climate records from tropical and subtropical South America for the past 20,000 years have been interpreted as local responses to shift in the mean position and intensity of the InterTropical Conv- gence Zone due to tropical and extratropical forcings or to changes in the South American Summer Monsoon. Further South, the role of the Southern Hemisphere westerly winds on global climate has been highly investigated with both paleodata and coupled climate models. However the regional response over South America during the last 20,000 years is much more variable from place to place than pre- ously thought. The factors that govern the spatial patterns of variability on millennial scale resolution are still to be understood. The question of past natural rates and ranges of climate conditions over South America is therefore of special relevance in this context since today millions of people live under climates where any changes in monsoon rainfall can lead to catastrophic consequences.

Quaternary Geology and Geomorphology of South America

Quaternary Geology and Geomorphology of South America PDF Author: Chalmers Moyes Clapperton
Publisher: Elsevier Science Publishing Company
ISBN:
Category : Science
Languages : en
Pages : 804

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Book Description
This monograph reviews the nature of Quaternary environmental changes over the largest continent in the Southern Hemisphere. Moreover, since South America makes a transect across most climatic belts of an entire hemisphere, it provides a unique opportunity to examine the impact of changing Quaternary climates on a variety of environments. It also forms the basis for judging the synchrony or non-synchrony of Quaternary climatic changes between hemispheres and this has important implications for climatic modelling.As South America has a dynamic tectonic regime along its western margin, 3 chapters discuss the geomorphological impact of Quaternary tectonics and volcanism. The following 6 chapters integrate evidence for Quaternary changes in the great alluvial basins of the Continent Orinoco, Amazon, Paranaacute;) and in the contiguous highland massifs (Guyana, Brazil, Patagonia). As parts of the Andes have been high enough to support glaciers since the late Miocene, 5 chapters review the nature and consequences of Quaternary glacier fluctuations. The following 4 chapters select major process-form systems that impacted the continent during the Quaternary, including geocryogenic activity, palaeolake development, palaeo-gravel formations and coastal changes. Three chapters provide the first major review of Quaternary vegetation changes in South America (primarily the Andes) deduced from palaeoecological data. The final chapter weaves most of the environmental threads together in an overall synthesis of the Quaternary of South America.The book is lavishly illustrated with photographs and line diagrams. As it provides a compendium of data and analyses about Quaternary changes for a whole continent, this book should appeal to a wide range of environmental disciplines.

Glaciers of South America

Glaciers of South America PDF Author: Carlos Schubert
Publisher:
ISBN: 9780607924756
Category : Glaciers
Languages : en
Pages : 206

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Late-glacial Glacier Events in Southernmost South America and Their Global Significance

Late-glacial Glacier Events in Southernmost South America and Their Global Significance PDF Author:
Publisher:
ISBN:
Category : Climatic changes
Languages : en
Pages : 152

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Glaciations in North and South America from the Miocene to the Last Glacial Maximum

Glaciations in North and South America from the Miocene to the Last Glacial Maximum PDF Author: Nat Rutter
Publisher: Springer Science & Business Media
ISBN: 9400743998
Category : Science
Languages : en
Pages : 67

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Book Description
Improved dating methods have increased our ability to more precisely determine the timing and durations of glaciations. Utilizing glacial and loess deposits, we have compared glaciations that occurred in North and South America in order to determine if events are synchronous or not, to explore forcing mechanisms, and to compare glaciations with cold periods of the Marine Oxygen Isotope stages and the loess/paleosol records of China. Stratigraphic sections containing a variety of glacial deposits, some with interbedded volcanics, as well as loess deposits, were used in reconstructing the glacial history. The Late Pleistocene (Brunhes Chron) Last Glacial Maximum is recognized in mountain and continental areas of North America but only in the mountains of South America. Commonly our comparisons indicate roughly synchronous glaciations on the two continents, whereas other glaciations are more elusive and difficult to compare. Although our comparisons are at low resolutions, the results suggest that Milankovitch forcing is most likely the dominant trigger for hemispheric glaciation modified by local factors.

Glaciations in North and South America from the Miocene to the Last Glacial Maximum

Glaciations in North and South America from the Miocene to the Last Glacial Maximum PDF Author:
Publisher: Springer
ISBN: 9789400744004
Category :
Languages : en
Pages : 84

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Book Description


Southern Hemisphere Glacier Atlas

Southern Hemisphere Glacier Atlas PDF Author: John H. Mercer
Publisher:
ISBN:
Category : Glaciers
Languages : en
Pages : 366

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Book Description
Results of literature survey of knowledge on mountain glaciers in six regions of southern hemisphere: Andes of South America (Ecuador, Peru, Bolivia, Chile, Argentina), New Guinea, East Africa, Subantarctic Islands, New Zealand, and Antarctica. Includes discussions on distribution, extent, characteristics, and behavior of mountain glaciers as well as map and list of references for each regional discussion.

The Physical Geography of South America

The Physical Geography of South America PDF Author: Thomas T. Veblen
Publisher: Oxford University Press
ISBN: 9780198031840
Category :
Languages : en
Pages : 448

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Book Description
The Physical Geography of South America, the eighth volume in the Oxford Regional Environments series, presents an enduring statement on the physical and biogeographic conditions of this remarkable continent and their relationships to human activity. It fills a void in recent environmental literature by assembling a team of specialists from within and beyond South America in order to provide an integrated, cross-disciplinary body of knowledge about this mostly tropical continent, together with its high mountains and temperate southern cone. The authors systematically cover the main components of the South American environment - tectonism, climate, glaciation, natural landscape changes, rivers, vegetation, animals, and soils. The book then presents more specific treatments of regions with special attributes from the tropical forests of the Amazon basin to the Atacama Desert and Patagonian steppe, and from the Atlantic, Caribbean, and Pacific coasts to the high Andes. Additionally, the continents environments are given a human face by evaluating the roles played by people over time, from pre-European and European colonial impacts to the effects of modern agriculture and urbanization, and from interactions with El Ni?o events to prognoses for the future environments of the continent.