EQUILIBRE DU RESERVOIR CHAUD DE L'OCEAN PACIFIQUE TROPICAL OUEST PDF Download

Author: Christophe Maes
Publisher:
ISBN:
Category :
Languages : fr
Pages : 237

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AU SEIN DE L'OCEAN PACIFIQUE TROPICAL, LE PHENOMENE EL NINO/SOUTHERN OSCILLATION (ENSO) REPRESENTE LE MODE PREPONDERANT DE VARIABILITE CLIMATIQUE A BASSE FREQUENCE. AU COURS DU PROGRAMME TOGA (TROPICAL OCEAN GLOBAL ATMOSPHERE), LA RECONNAISSANCE DES PROCESSUS MIS EN JEU DANS CE PHENOMENE A CONDUIT A L'IMPLICATION DU RESERVOIR DES EAUX CHAUDES DE L'OUEST DE L'OCEAN PACIFIQUE. L'ETUDE D'UN TEL RESERVOIR DE CHALEUR, AINSI QUE SA VARIABILITE SAISONNIERE ET INTERANNUELLE, A L'AIDE D'UN MODELE DE CIRCULATION GENERALE OCEANIQUE REPRESENTE LES OBJECTIFS DE CE TRAVAIL DE THESE. LES RESULTATS DES EXPERIENCES SONT CONFRONTES AUX OBSERVATIONS DE FACON A DETERMINER L'IMPORTANCE DES DIFFERENTS FORCAGES INTERVENANTS DANS L'EQUILIBRE DU RESERVOIR D'EAUX CHAUDES. UNE ANALYSE ISOTHERMALE COMPLETE LA DESCRIPTION DES MECANISMES PHYSIQUES IMPLIQUES. ENFIN, LA CONNEXION AVEC L'OCEAN INDIEN A TRAVERS LES MERS MARGINALES INDONESIENNES EST ETUDIEE EN METTANT EN EVIDENCE L'IMPACT DE CETTE OUVERTURE SUR L'OCEAN PACIFIQUE TROPICAL OUEST

Author: R. Boje
Publisher: Springer Science & Business Media
ISBN: 3642669859
Category : Science
Languages : en
Pages : 310

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Upwelling areas are among the most fertile regions of the ocean. In principle, upwelling is caused by the divergence of the flow in the surface layer of the ocean which arises as a consequence of a particular wind field, the presence of a coastline, or other special conditions. Since deeper oceanic layers are usually enriched wi th nutrients, it is the permanent supply of nutrients which forms the basis for the high producti vi ty of upwelling reg ions. The study of upwelling and its consequences were, for a long time, the task of individual scientists from all disciplines of marine science. Today, it is perhaps the branch of oceanography where interdisciplinary coopera tion has developed best. Becoming aware of the large potential yield of upwelling regions, governments in creased the funds for upwelling research. With research activities developed on a larger scale, interdisciplin ary cooperation became a necessity. On the international level, several symposia documented the rapid development. Three volumes reflect the results of these scientific meetings (Rapp. Proc.-Verb. 159, 1970; Inv. Pesq. 35, 1, 1971; Tethys §.' 1-2, 1974). The present book contains selected papers from the Third Symposium on Upwelling Ecosystems, which was held in Kiel in September 1975. Although the third of a series of meetings, it was the first where the word "ecosystem" stood in the title for a scientific program.

Author: Kessler
Publisher:
ISBN: 9781935704515
Category :
Languages : en
Pages :

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Author: M. N. Rajeevan
Publisher: Springer
ISBN: 9811025312
Category : Science
Languages : en
Pages : 326

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The objective of the book is to make a comprehensive documentation of the observed variability and change of the regional climate system over the Indian region using the past observed data. The book addresses all the important parameters of regional climate system so that a physically consistent view of the changes of the climate system is documented. The book contains 16 chapters written by the subject experts from different academic and research institutes in India. The book addresses all important components/parameters of the climate system, like rainfall, temperature, humidity, clouds, moisture, sea surface temperature and ocean heat content, sea level, glaciers and snow cover, tropical cyclones and monsoon depressions, extreme rainfall and rainstorms, heat waves and cold waves, meteorological droughts, aerosols, atmospheric aerosols, ozone and trace gases and atmospheric radiative fluxes. One chapter deals with the past monsoon using monsoon proxy data. The last chapter deals with the future climate change projections over the Indian region (rainfall and temperature) made using coupled climate models. Most of the analyses (especially on rainfall, temperature, extreme rainfall, sea surface temperature, meteorological droughts) are based on the data for a longer period of 110 years, 1901–2010. For some other parameters like moisture, clouds, heat waves and cold waves, atmospheric aerosols, ozone and trace gases and radiative fluxes, data of shorter period have been used. The articles documented inter-annual and decadal variability in addition to documenting long term trends of different parameters. The trends have been tested for statistical significance using standard techniques. It is expected that the present book will be an excellent reference material for researchers as well as for policy makers. These results will be useful in interpreting future climate change scenarios over the region being projected using coupled climate models. Further analysis of these results is required for attributing the observed variability and change to natural and anthropogenic activities.

Author: World Meteorological Organization
Publisher:
ISBN: 9789263108326
Category : Climatology
Languages : en
Pages : 16

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Author: Ira Helsloot
Publisher: Charles C Thomas Publisher
ISBN: 0398086834
Category : Business & Economics
Languages : en
Pages : 389

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Book Description
We live in turbulent times with continents and nations facing ever-heightening risks such as natural disasters, intense and protracted conflicts, terrorism, corporate crises, cyber threats to infrastructures and mega-events. We are witnessing the rise of mega-crises and a new class of adversity with many unknowns. The prospect of mega-crises presents professionals and students in the field of crisis management with four major tasks. First, they should engage in “deep thinking” about the causes of the increasing occurrence of mega-crises. Second, they should identify and work through the dominant trends which complicate contemporary crisis management. Third, they should upgrade institutional crisis management capacity. Fourth, they should improve societal resilience since no institutional complex can mitigate or manage these mega-crisis on its own. This book is divided into four primary parts, each of which looks at one facet of mega-crises. Part I focuses on the concept of a mega-crisis and mega-crisis management; Part II examines crisis management of mega-natural disasters; Part III evaluates crisis management of man-made mega-crises; and Part IV identifies mega-threats and vulnerabilities. Additional major topics include Hurricane Katrina; Hurricane Gustav; the London Bombings; the Mumbai Terrorist Attacks of July 7, 2005; corporate meltdowns; the subprime crisis; the Olympic Games; electricity grids; global climate change; the Dutch Delta; risks to food security; and mega-crises and the Internet. This comprehensive text will provide practitioners and academics with the results of an across-the-board research effort in the prospects, nature, characteristics, and the effects of mega-crises.

Author: J. Gautheyrou
Publisher: CRC Press
ISBN: 9789054107163
Category : Technology & Engineering
Languages : en
Pages : 514

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The objective of this book is to provide a better understanding of tools for soil analysis in order to use them more efficiently. It covers sampling problems as well as difficulties relating to actual analysis and quality control.

Author: Gabriella Bianchi
Publisher: CABI
ISBN: 1845934148
Category : Technology & Engineering
Languages : en
Pages : 377

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Book Description
"Sustainable use of aquatic ecosystems is high on regional, national and international agendas and central to the implementation of international agreements on biological diversity, responsible fisheries and fish stock management. Since 2001, when political commitments were made to implement the ecosystem approach, countries have begun to incorporate ecosystem considerations into their fisheries management and have met with varied success." "The Ecosystem Approach to Fisheries covers both theoretical andapplied aspects of sustainable management, with a particular emphasis on reviewing concepts and addressing implementation issues in the form of case studies from around the world. Personal experiences are considered from diverse backgrounds and discuss the constraints encountered, strategies identified and best practices to facilitate further implementation."--BOOK JACKET.

Author: Flow Regimes from International Experimental and Network Data (Project)
Publisher:
ISBN: 9781901502787
Category : Business & Economics
Languages : en
Pages : 738

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This volume contains 117 reviewed papers from over 30 countries, published in English, French and Spanish, which reflect both international dimension of FRIEND and the key challenges facing hydrologists in the 21st century.

Author: Clive G. Jones
Publisher: Springer Science & Business Media
ISBN: 1461517737
Category : Science
Languages : en
Pages : 403

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Book Description
I was asked to introduce this volume by examining "why a knowledge of ecosys tem functioning can contribute to understanding species activities, dynamics, and assemblages." I have found it surprisingly difficult to address this topic. On the one hand, the answer is very simple and general: because all species live in ecosystems, they are part of and dependent on ecosystem processes. It is impossible to understand the abundance and distribution of populations and the species diversity and composition of communities without a knowledge of their abiotic and biotic environments and of the fluxes of energy and mat ter through the ecosystems of which they are a part. But everyone knows this. It is what ecology is all about (e.g., Likens, 1992). It is why the discipline has retained its integrity and thrived, despite a sometimes distressing degree of bickering and chauvinism among its various subdisciplines: physiological, be havioral, population, community, and ecosystem ecology.