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Les Echanges Ocean Atmosphere Dans Latlantique Subtropical Nord Est
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Book Synopsis LES ECHANGES OCEAN-ATMOSPHERE DANS L'ATLANTIQUE SUBTROPICAL NORD-EST by : Olivier Bauer
Download or read book LES ECHANGES OCEAN-ATMOSPHERE DANS L'ATLANTIQUE SUBTROPICAL NORD-EST written by Olivier Bauer and published by . This book was released on 1996 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt: LE TRAVAIL PRESENTE PORTE SUR L'ETUDE DES ECHANGES D'ENERGIE ET DE MATIERE, AU TRAVERS DU BILAN THERMIQUE NET A LA SURFACE OCEANIQUE, DANS UNE REGION DE L'OCEAN ATLANTIQUE NORD. LE FLUX ONDES COURTES, TERME PREPONDERANT DE CE BILAN, EST DETERMINE GRACE A LA METHODE HELIOSAT ADAPTEE AUX DONNEES DE BASSE RESOLUTION SPATIALE DU SATELLITE METEOSAT-4. A MESO-ECHELLE, SUR UNE BASE HORAIRE, NOUS METTONS EN RELIEF LA GRANDE VARIABILITE DU FLUX SOLAIRE A LA SURFACE. LES RESULTATS DE COMPARAISON AVEC DES MESURES IN SITU SUR NOTRE ZONE D'ETUDE SONT SATISFAISANTS. NOUS ESTIMONS LES PERFORMANCES DE HUIT FORMULATIONS SEMI-EMPIRIQUES USUELLES SUR LA RESTITUTION DU FLUX ONDES LONGUES NET EN UTILISANT DES MOYENNES MENSUELLES CLIMATOLOGIQUES OU DES MESURES IN SITU DES PARAMETRES SURFACIQUES. NOUS TESTONS ENSUITE UNE METHODE DEVELOPPEE POUR L'UTILISATION DE DONNEES SATELLITAIRES. MAIS LA VALIDATION DE CE MODELE SUR NOTRE ZONE D'ETUDE S'AVERE PLUS MAUVAISE QUE L'UTILISATION DE SIMPLES RELATIONS SEMI-EMPIRIQUES. NOUS EVALUONS QUALITATIVEMENT ET QUANTITATIVEMENT L'IMPACT DE L'ENNUAGEMENT SUR LES FLUX RADIATIFS EN REALISANT UNE CLASSIFICATION DES TYPES DE CIELS SELON LA NEBULOSITE TOTALE. NOUS REALISONS ENSUITE DES MOYENNES CLIMATOLOGIQUES DES FLUX DE SURFACE ETUDIES AFIN D'EN DEDUIRE LE BILAN THERMIQUE NET SUR NOTRE ZONE D'ETUDE ET NOUS ANALYSONS SES VARIATIONS ZONALES POUR LES MOIS DE SEPTEMBRE ET D'OCTOBRE. DANS UNE DERNIERE PARTIE, NOUS NOUS FOCALISONS SUR L'OBSERVATION IN SITU DE TROIS SITUATIONS METEOROLOGIQUES PARTICULIERES AFIN D'ESTIMER L'IMPACT DE LA VARIABILITE SPATIO-TEMPORELLE POUR LA RESTITUTION DE CE BILAN. DES VARIATIONS SIGNIFICATIVES DES FLUX ESTIMES SONT MISES EN EVIDENCE EN FONCTION DE LA DUREE DE MOYENNISATION AINSI QU'EN FONCTION DES METHODES DE SOUS-ECHANTILLONNAGE SPATIAL UTILISEES POUR LA CONSTRUCTION DES IMAGES SATELLITAIRES
Book Synopsis SUR LES INTERACTIONS OCEAN ATMOSPHERE DANS L'ATLANTIQUE NORD ET LA VARIABILITE DE LA THERMOCLINE by : ARNAUD.. CZAJA
Download or read book SUR LES INTERACTIONS OCEAN ATMOSPHERE DANS L'ATLANTIQUE NORD ET LA VARIABILITE DE LA THERMOCLINE written by ARNAUD.. CZAJA and published by . This book was released on 1998 with total page 197 pages. Available in PDF, EPUB and Kindle. Book excerpt: LA THESE PORTE SUR LE ROLE DES ANOMALIES DE TEMPERATURE DE SURFACE DE L'OCEAN DANS LE SYSTEME CLIMATIQUE DES MOYENNES LATITUDES. DANS UNE PREMIERE PARTIE, NOUS ETUDIONS LEUR COMPORTEMENT A L'ECHELLE DE QUELQUES MOIS DANS LES OBSERVATIONS, DANS L'ATLANTIQUE NORD. SI, EN ACCORD AVEC D'AUTRES ETUDES, NOUS MONTRONS QU'ELLES SONT EN PARTIE GENEREES PAR LES ECHANGES DE CHALEUR AVEC L'ATMOSPHERE, NOUS MONTRONS QU'ELLES SONT AUSSI ULTERIEUREMENT ATTENUEES PAR CES DERNIERS, EN RAISON DE L'AJUSTEMENT DE LA TEMPERATURE DE L'AIR DANS LA COUCHE LIMITE ATMOSPHERIQUE. CET EFFET EN RETOUR, QUI EXPLIQUE TYPIQUEMENT LA MOITIE DE LA PERSISTENCE DES ANOMALIES DE TEMPERATURE DE SURFACE DE L'OCEAN, EST MIS EN EVIDENCE POUR DES ANOMALIES DE PETITE ECHELLE SPATIALE, MAIS AUSSI POUR LEURS STRUCTURES DOMINANTES DE VARIABILITE. LE FAIBLE AJUSTEMENT DE LA CIRCULATION TROPOSPHERIQUE EST EGALEMENT ETUDIE DANS LES OBSERVATIONS DE PRESSION DE SURFACE, DE TEMPERATURE DE L'AIR A 700 MLB ET DE HAUTEUR GEOPOTENTIELLE A 500 MLB DANS L'ATLANTIQUE NORD. DANS LA SECONDE PARTIE DE LA THESE, NOUS ETUDIONS L'EFFET DES ANOMALIES DE TEMPERATURE DE SURFACE DE L'OCEAN ET PLUS GENERALEMENT DE CELLES DES VARIABLES DE LA COUCHE MELANGEE (DENSITE ET PROFONDEUR) SUR LA VARIABILITE DECENNALE DE LA THERMOCLINE VENTILEE. NOUS UTILISONS POUR CELA UN MODELE A DEUX COUCHES DE LA THERMOCLINE AUQUEL EST SUPERPOSE UNE COUCHE DE MELANGE. ON PRESCRIT LA DENSITE DE CETTE DERNIERE ET LE FLUX DE POUSSEE EN SURFACE EST DEDUIT DE FACON DIAGNOSTIQUE DU BILAN DE DENSITE DES COLONNES VENTILEES. NOUS AVONS CONSIDERE UNE MODULATION DECENNALE DU CYCLE SAISONNIER, ET NOUS AVONS MONTRE QUE LA VARIABILITE ENGENDREE DANS LA THERMOCLINE EST SIGNIFICATIVE MAIS FAIBLE. UNE EXTENSION DU MODELE AU CAS D'UN FORCAGE STOCHASTIQUE A PERMIS DE PREDIRE LE SPECTRE DE VORTICITE POTENTIELLE DANS LA REGION VENTILEE. LA COMPARAISON DE NOTRE ETUDE AVEC CELLES DU FORCAGE DE LA THERMOCLINE PAR LE VENT SUGGERE QUE CE DERNIER MECANISME EST LE PLUS EFFICACE DANS CETTE REGION.
Author :Programme de recherches sur l'atmosphère globale. Expérience tropicale dans l'Atlantique Publisher : ISBN 13 : Total Pages :117 pages Book Rating :4.:/5 (85 download)
Book Synopsis Physical Oceanography of the Tropical Atlantic During GATE by : Programme de recherches sur l'atmosphère globale. Expérience tropicale dans l'Atlantique
Download or read book Physical Oceanography of the Tropical Atlantic During GATE written by Programme de recherches sur l'atmosphère globale. Expérience tropicale dans l'Atlantique and published by . This book was released on 1980 with total page 117 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Tropical and Extratropical Air-Sea Interactions by : Swadhin Kumar Behera
Download or read book Tropical and Extratropical Air-Sea Interactions written by Swadhin Kumar Behera and published by Elsevier. This book was released on 2021-01-15 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt: Tropical and Extratropical Air-Sea Interactions: Modes of Climate Variations provides a thorough introduction to global atmospheric and oceanic processes, as well as tropical, subtropical and mid-latitude ocean-atmosphere interactions. Written by leading experts in the field, each chapter is dedicated to a specific topic of air-sea interactions (such as ENSO, IOD, Atlantic Nino, ENSO Modoki, and newly discovered coastal Niños/Niñas) and their teleconnections. As the first book to cover all topics of tropical and extra-tropical air-sea interactions and new modes of climate variations, this book is an excellent resource for researchers and students of ocean, atmospheric and climate sciences. Presents case studies on the ocean-atmosphere phenomena, including El Nino Southern Oscillation (ENSO), Indian Ocean Dipole and different Nino/Nina phenomena Provides a clear description of air-sea relationships across the world's ocean with an analysis of air-sea relations in different time scales and a focus on climate change Includes prospects for air-sea interaction research, thus benefiting young researchers and students
Book Synopsis Asur les interactions océan atmosphère dans l'Atlantique nord et la variabilité de la thermocline by : Arnaud Czaja
Download or read book Asur les interactions océan atmosphère dans l'Atlantique nord et la variabilité de la thermocline written by Arnaud Czaja and published by . This book was released on 1998 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: LA THESE PORTE SUR LE ROLE DES ANOMALIES DE TEMPERATURE DE SURFACE DE L'OCEAN DANS LE SYSTEME CLIMATIQUE DES MOYENNES LATITUDES. DANS UNE PREMIERE PARTIE, NOUS ETUDIONS LEUR COMPORTEMENT A L'ECHELLE DE QUELQUES MOIS DANS LES OBSERVATIONS, DANS L'ATLANTIQUE NORD. SI, EN ACCORD AVEC D'AUTRES ETUDES, NOUS MONTRONS QU'ELLES SONT EN PARTIE GENEREES PAR LES ECHANGES DE CHALEUR AVEC L'ATMOSPHERE, NOUS MONTRONS QU'ELLES SONT AUSSI ULTERIEUREMENT ATTENUEES PAR CES DERNIERS, EN RAISON DE L'AJUSTEMENT DE LA TEMPERATURE DE L'AIR DANS LA COUCHE LIMITE ATMOSPHERIQUE. CET EFFET EN RETOUR, QUI EXPLIQUE TYPIQUEMENT LA MOITIE DE LA PERSISTENCE DES ANOMALIES DE TEMPERATURE DE SURFACE DE L'OCEAN, EST MIS EN EVIDENCE POUR DES ANOMALIES DE PETITE ECHELLE SPATIALE, MAIS AUSSI POUR LEURS STRUCTURES DOMINANTES DE VARIABILITE. LE FAIBLE AJUSTEMENT DE LA CIRCULATION TROPOSPHERIQUE EST EGALEMENT ETUDIE DANS LES OBSERVATIONS DE PRESSION DE SURFACE, DE TEMPERATURE DE L'AIR A 700 MLB ET DE HAUTEUR GEOPOTENTIELLE A 500 MLB DANS L'ATLANTIQUE NORD. DANS LA SECONDE PARTIE DE LA THESE, NOUS ETUDIONS L'EFFET DES ANOMALIES DE TEMPERATURE DE SURFACE DE L'OCEAN ET PLUS GENERALEMENT DE CELLES DES VARIABLES DE LA COUCHE MELANGEE (DENSITE ET PROFONDEUR) SUR LA VARIABILITE DECENNALE DE LA THERMOCLINE VENTILEE. NOUS UTILISONS POUR CELA UN MODELE A DEUX COUCHES DE LA THERMOCLINE AUQUEL EST SUPERPOSE UNE COUCHE DE MELANGE. ON PRESCRIT LA DENSITE DE CETTE DERNIERE ET LE FLUX DE POUSSEE EN SURFACE EST DEDUIT DE FACON DIAGNOSTIQUE DU BILAN DE DENSITE DES COLONNES VENTILEES. NOUS AVONS CONSIDERE UNE MODULATION DECENNALE DU CYCLE SAISONNIER, ET NOUS AVONS MONTRE QUE LA VARIABILITE ENGENDREE DANS LA THERMOCLINE EST SIGNIFICATIVE MAIS FAIBLE. UNE EXTENSION DU MODELE AU CAS D'UN FORCAGE STOCHASTIQUE A PERMIS DE PREDIRE LE SPECTRE DE VORTICITE POTENTIELLE DANS LA REGION VENTILEE. LA COMPARAISON DE NOTRE ETUDE AVEC CELLES DU FORCAGE DE LA THERMOCLINE PAR LE VENT SUGGERE QUE CE DERNIER MECANISME EST LE PLUS EFFICACE DANS CETTE REGION
Book Synopsis The Mediterranean region under climate change by : Collectif
Download or read book The Mediterranean region under climate change written by Collectif and published by IRD Éditions. This book was released on 2018-11-19 with total page 736 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book has been published by Allenvi (French National Alliance for Environmental Research) to coincide with the 22nd Conference of Parties to the United Nations Framework Convention on Climate Change (COP22) in Marrakesh. It is the outcome of work by academic researchers on both sides of the Mediterranean and provides a remarkable scientific review of the mechanisms of climate change and its impacts on the environment, the economy, health and Mediterranean societies. It will also be valuable in developing responses that draw on “scientific evidence” to address the issues of adaptation, resource conservation, solutions and risk prevention. Reflecting the full complexity of the Mediterranean environment, the book is a major scientific contribution to the climate issue, where various scientific considerations converge to break down the boundaries between disciplines.
Author :International Development Research Centre (Canada) Publisher :IDRC ISBN 13 :088936852X Total Pages :319 pages Book Rating :4.8/5 (893 download)
Book Synopsis Cover Crops in West Africa by : International Development Research Centre (Canada)
Download or read book Cover Crops in West Africa written by International Development Research Centre (Canada) and published by IDRC. This book was released on 1998 with total page 319 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cover Crops in West Africa Contributing to Sustainable Agriculture
Download or read book Upwelling Ecosystems written by R. Boje and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 310 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book El Niño written by Bruno Voituriez and published by UNESCO. This book was released on 2000 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt: El Nino, caprice of the heavens, scapegoat for every calamity? The general public cannot really understand what is behind the El Nino phenomenon. The book offers a tour of the Earth's climate to understand one of its normal but extreme components.
Download or read book Earth's Climate written by Chunzai Wang and published by American Geophysical Union. This book was released on 2004-01-09 with total page 426 pages. Available in PDF, EPUB and Kindle. Book excerpt: Published by the American Geophysical Union as part of the Geophysical Monograph Series, Volume 147. It is more than 30 years since the publication of Jacob Bjerknes' groundbreaking ideas made clear the importance of ocean-atmosphere interaction in the tropics. It is now more than 20 years since the arrival of a massive El Niño in the fall of 1982 set off a cascade of observational and theoretical studies. During the following decades, the climate research community has made exceptional progress in refining our capacity to observe earth's climate and theorize about it, including new satellite-based and in situ monitoring systems and coupled ocean-atmosphere predictive numerical models. Of equal importance. is the expanding scope ofresearch, which now reaches far beyond the Pacific El Niño and includes climate phenomena in other ocean basins. In order to cover the now global context of ocean-atmosphere interaction we have organized this monograph around five principal themes, each introduced by one or more broad overview papers. Theme I covers interaction and climate variability in the Pacific sector, with extensive discussion of El Niño-Southern Oscillation, and with the possible causes and consequences of variability on both shorter and longer timescales. Theme II is devoted to interaction in the Atlantic sector. This basin exhibits complex behavior, reflecting its geographic location between two major zones of convection as well as neighboring the tropical Pacific. Theme III reviews the recent, exciting progress in our understanding of climate variability in the Indian sector. Theme IV addresses the interaction between the tropics and the extratropics, which are linked through the presence of shallow meridional overturning cells in the ocean. Finally, Theme V discusses overarching issues of cross-basin interaction.
Book Synopsis A Memory of Ice by : Elizabeth Truswell
Download or read book A Memory of Ice written by Elizabeth Truswell and published by ANU Press. This book was released on 2019-08-01 with total page 247 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the southern summer of 1972/73, the Glomar Challenger was the first vessel of the international Deep Sea Drilling Project to venture into the seas surrounding Antarctica, confronting severe weather and ever-present icebergs. A Memory of Ice presents the science and the excitement of that voyage in a manner readable for non-scientists. Woven into the modern story is the history of early explorers, scientists and navigators who had gone before into the Southern Ocean. The departure of the Glomar Challenger from Fremantle took place 100 years after the HMS Challenger weighed anchor from Portsmouth, England, at the start of its four-year voyage, sampling and dredging the world’s oceans. Sailing south, the Glomar Challenger crossed the path of James Cook’s HMS Resolution, then on its circumnavigation of Antarctica in search of the Great South Land. Encounters with Lieutenant Charles Wilkes of the US Exploring Expedition and Douglas Mawson of the Australasian Antarctic Expedition followed. In the Ross Sea, the voyages of the HMS Erebus and HMS Terror under James Clark Ross, with the young Joseph Hooker as botanist, were ever present. The story of the Glomar Challenger’s iconic voyage is largely told through the diaries of the author, then a young scientist experiencing science at sea for the first time. It weaves together the physical history of Antarctica with how we have come to our current knowledge of the polar continent. This is an attractive, lavishly illustrated and curiosity-satisfying read for the general public as well as for scholars of science.
Book Synopsis Holocene Climate Variability by : E. Jansen
Download or read book Holocene Climate Variability written by E. Jansen and published by Elsevier Science & Technology. This book was released on 2004 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt: Provides an update of results on the record of past ocean variability since the end of the ice age. This work gives an overview of many aspects of natural climate variability and give both scholars and students a means of keeping up to date on recent developments in the field.
Book Synopsis Dolphins, Whales, and Porpoises by : Randall R. Reeves
Download or read book Dolphins, Whales, and Porpoises written by Randall R. Reeves and published by IUCN. This book was released on 2003 with total page 238 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Interacting Climates of Ocean Basins by : Carlos R. Mechoso
Download or read book Interacting Climates of Ocean Basins written by Carlos R. Mechoso and published by Cambridge University Press. This book was released on 2020-11-26 with total page 359 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive review of interactions between the climates of different ocean basins and their key contributions to global climate variability and change. Providing essential theory and discussing outstanding examples as well as impacts on monsoons, it a useful resource for graduate students and researchers in the atmospheric and ocean sciences.
Book Synopsis Pacific - Atlantic Mollusc Migration by : Jón Eiríksson
Download or read book Pacific - Atlantic Mollusc Migration written by Jón Eiríksson and published by Springer Nature. This book was released on 2021-02-17 with total page 882 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume sheds new light on the marine fauna and geological setting of the Tjörnes Sequence, North Iceland, which is a classic site for the Pliocene and Pleistocene stratigraphy of the North Atlantic region. Readers will discover descriptions of new data collected by the editors over a period of over three decades on marine faunal assemblages and sedimentology available for palaeoenvironmental reconstructions, as well as the tectonic and stratigraphical relationships on Tjörnes Peninsula. The book includes a comprehensive account of all the collections of marine fossil invertebrate macrofossils and foraminifera known to the editors from the Tjörnes Sequence. It is expected to elucidate sedimentological and faunal changes from relatively stable Pliocene conditions to highly variable and periodically harsh climatic conditions of recurring Quaternary glaciations. The distribution, recent or fossil, of various species is recorded and pertinent ecological and biological features are also discussed. The Tjörnes Sequence records the Neogene migration of Pacific species into the North Atlantic. Researchers in geology, climate science, environmental science and earth science will find this book particularly valuable.
Book Synopsis The Atlantic Forest by : Marcia C. M. Marques
Download or read book The Atlantic Forest written by Marcia C. M. Marques and published by Springer Nature. This book was released on 2021-01-13 with total page 527 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Atlantic Forest is one of the 36 hotspots for biodiversity conservation worldwide. It is a unique, large biome (more than 3000 km in latitude; 2500 in longitude), marked by high biodiversity, high degree of endemic species and, at the same time, extremely threatened. Approximately 70% of the Brazilian population lives in the area of this biome, which makes the conflict between biodiversity conservation and the sustainability of the human population a relevant issue. This book aims to cover: 1) the historical characterization and geographic variation of the biome; 2) the distribution of the diversity of some relevant taxa; 3) the main threats to biodiversity, and 4) possible opportunities to ensure the biodiversity conservation, and the economic and social sustainability. Also, it is hoped that this book can be useful for those involved in the development of public policies aimed at the conservation of this important global biome.
Book Synopsis Ocean-Atmosphere Interactions by : Y. Toba
Download or read book Ocean-Atmosphere Interactions written by Y. Toba and published by The Rosen Publishing Group. This book was released on 2003-08-31 with total page 336 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents an up-to-date analysis of ocean-atmosphere interaction. Well known experts examine diverse subjects such as ocean surface waves, air-sea exchange processes, ocean surface mixed layer, water-mass formation, as well as general circulation of the oceans, El Nino and Southern Oscillation (ENSO), and the deep-ocean circulation. Other areas described are basic dynamics, data analysis techniques, numerical modelling, and remote sensing. This book is primarily aimed at graduate and senior undergraduate courses in the area of ocean-atmosphere research.
