Download or read book Limnologie physique d un lac recouvert par les glaces avec coulement sous jacent written by and published by . This book was released on 1987 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Limnologie physique d un lac recouvert par les glaces avec coulement sous jacent lac Laberge au Yukon written by Canada. Direction générale des eaux intérieures et des terres and published by Saskatoon : Environment Canada, Institut national de recherche en hydrologie. This book was released on 1987 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Limnologie physique d un lac recouvert par les glaces avec coulement sous jacent written by Canada. Environnement Canada and published by . This book was released on 1987 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Microlog Canadian Research Index written by and published by . This book was released on 1988 with total page 1112 pages. Available in PDF, EPUB and Kindle. Book excerpt: "An index and document delivery service for Canadian report literature".
Download or read book Government of Canada Publications Quarterly Catalogue written by and published by . This book was released on 1988 with total page 1514 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book tude des lacs du cours sup rieur du fleuve Yukon 1983 et 1985 observations et analyse written by Centre canadien des eaux intérieures and published by Burlington, Ont. : Direction de la recherche sur les lacs, Institut national de recherche sur les eaux, Centre canadien des eaux intérieures. This book was released on 1990 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Freezing of Lakes and the Evolution of Their Ice Cover written by Matti Leppäranta and published by Springer Nature. This book was released on 2023-07-05 with total page 365 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book updates the first edition for the status of knowledge in the physics of lake ice and the interactions between the ice cover and the liquid water underneath. Since the first edition was written in 2013, there has been a lot of progress in the field, in particular concerning environmental questions and the impact of climate change. Life conditions in ice-covered lakes and practical matters are now brought more into the picture so that the revision also properly serves as a handbook for applications. The author has worked widely with boreal lakes, polar lakes and Central Asian lakes that provides a wide geographical spectrum. Chapter 1 gives a brief overview and presents the research fields. The second chapter contains the classification of ice-covered lakes and observation techniques, especially remote sensing. In Chapter 3, the structure and properties of lake ice are presented including optics and geochemistry. Ice growth and melting are treated in Chapter 4, while the following chapter focuses on ice mechanics with applications to traffic on ice and ice loads. Chapter 6 goes into the exotic environment of pro-glacial lakes. Chapter 7 contains the stratification and circulation of the water body beneath lake ice, Chapter 8 presents the winter ecology of freezing lakes and discusses the lake ice interface toward the society, and Chapter 9 summarizes the climate change impact on lake ice seasons. The book ends into a brief closing chapter and list of references. Research problems for student learning are listed throughout the book. Annexes are included to provide numerical data of constants and standard formulae to help practical calculations and student tasks. Lake ice closely interacts with human living conditions, but people have learnt to live with that and to utilize the ice. In the present time this is true for on-ice traffic and recreation activities. Ice fishing has become a widely enjoyed hobby, and winter sports such as skiing, skating, and ice sailing are popular activities on frozen lakes. The lake ice response to eventual climate warming would appear as a shortening of the ice season due to the increasing air temperature and also as changing of the quality of the ice seasons via changes in ice thickness and structure. The book gives the whole story of lake ice into a single volume. The second, revised edition updates the content based on recent progress in winter limnology and ice physics research and applications. The author has contributed to lake ice research since the 1980s. In particular, his topics have been lake ice structure and thermodynamics, light transfer in ice and snow, ice mechanics in large lakes, and lake ice climatology. Mathematical modeling of ice growth, drift, and decay are covered in this research.
Download or read book Les lacs leur mode de formation leurs eaux leur destin written by Léon William Collet and published by . This book was released on 1924 with total page 406 pages. Available in PDF, EPUB and Kindle. Book excerpt: Leur destin (côtes, alluvions, sédimentation).
Download or read book Les lacs Une br ve introduction written by Warwick Vincent and published by Presses de l'Université Laval. This book was released on 2019-04-02T00:00:00-04:00 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt: Des profondeurs mystérieuses du lac Vostok, en Antarctique, aux lacs des plaines inondables tropicales, les écosystèmes lacustres partagent de nombreuses caractéristiques. Comment ont-ils été formés? Les « lacs morts » peuvent-ils être ressuscités? Comment les lacs nous renseignent-ils sur le passé et le présent de la Terre? Warwick Vincent explique les principaux aspects de la science des lacs, la limnologie. À l’aide d’exemples tirés de partout dans le monde, il décrit les caractéristiques environnementales et l’écologie des lacs, ainsi que la valeur qu’ils ont pour la société. Soulignant l’importance de préserver ces écosystèmes complexes, il examine les effets du climat, des saisons, de la salinité et d’autres facteurs sur la biodiversité des lacs, ainsi que les menaces que représentent la croissance des populations humaines et les changements climatiques.
Download or read book tude limnologique Lac de l Achigan comt de Terrebonne written by Michel P. Lamontagne and published by Québec : Ministère des richesses naturelles, Direction générale des eaux, Service qualité des eaux. This book was released on 1974 with total page 65 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nos lacs written by André Hade and published by Les Editions Fides. This book was released on 2003 with total page 364 pages. Available in PDF, EPUB and Kindle. Book excerpt: « Partie intégrante des paysages qui nous entourent, les lacs exercent une remarquable attraction. On les fréquente à titre de résidant, de villégiateur, de sportif ou comme amant de la nature. Il arrive cependant que ce beau lac que nous avions jadis connu présente aujourd'hui un nouveau visage moins réjouissant. Que s'est-il passé? Comment ce coin de paradis a-t-il pu perdre de son charme? Quelles sont les causes de ce changement? Aurait-on pu éviter une telle dégradation? Voilà quelques-unes des questions abordées dans ce livre. Il s'adresse à tous ceux qui aiment les lacs et les fréquentent, à ceux qui les étudient et qui s'inquiètent de leur fragilité, à ceux qui s'intéressent à leur protection ou qui en assurent la gestion. Écosystème quasi autonome, le lac est un véritable être vivant qui subit l'influence des facteurs environnementaux et qui réagit au stress qui l'assaille. Pour contrer ces menaces, l'auteur donne des indications sur les mesures à prendre pour conserver la qualité des lacs et offre des pistes pour corriger certaines situations fâcheuses. On trouvera également des réponses sur la composition des lacs, leurs propriétés et les paramètres de qualité à respecter. »--
Download or read book tude des lacs du cours sup rieur du fleuve Yukon 1983 et 1985 written by and published by . This book was released on 1990 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Forel et le L man written by François A. Forel and published by EPFL Press. This book was released on 2012-12-10 with total page 321 pages. Available in PDF, EPUB and Kindle. Book excerpt: François Alphonse Forel est un précurseur, comme l’ont été avant lui Carl von Linné ou Gregor Mendel. La monographie qu’il consacre au lac Léman dès 1892 marque l’acte de naissance officiel de la limnologie, discipline principalement dédiée à l’étude des lacs et des eaux superficielles. Un champ de recherche depuis lors en constant développement, et dont l’importance se révèle cruciale aujourd’hui dans le cadre des études liées aux effets du réchauffement climatique. Tout récemment, un manuscrit oublié et jusqu’à présent inédit de Forel, dédié à ses petits-enfants, a été découvert. Il y décrit sa carrière, ses découvertes, ses observations et les thèses scientifiques qu’il en a tirées. Un document exceptionnel, exposant les théories prospectives de son auteur, et l’état des connaissances de l’époque. Cette autobiographie scientifique constitue le noyau central de cet ouvrage, autour duquel s’articulent les commentaires de nombreux spécialistes actuels. Elle offre, dans un langage simple et accessible à tous, de multiples clés de compréhension de l’écosystème et des phénomènes naturels du lac Léman.
Download or read book Lake Kivu written by Jean-Pierre Descy and published by Springer Science & Business Media. This book was released on 2012-05-25 with total page 197 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the heart of Africa, a unique lake attracts the attention of scientists since the beginning of the 20th century. At the foot of the Virunga volcano chain, Lake Kivu harbors a vast amount of dissolved carbon dioxide and methane, making this lake the most dangerous lake on Earth. But the lake furnishes also many goods and services for surrounding populations and may soon become the most important energy supplier in the area. At the beginning of gas exploitation, the time has come for gathering the large amount of scientific information acquired during past and present research on Lake Kivu. The eleven chapters cover many aspects of the physics, geochemistry and biology of the lake, with a particular focus on the unique physical and geochemical features of the water column and on the ecological functioning of the surface waters. The impacts of the introduced fish species and the potential impacts of methane exploitation are also summarized. This multi-disciplinary book may also be used as an introduction to the limnology and biogeochemistry of large tropical lakes, as it covers various aspects of the physics, geochemistry, biology and ecology of the African Great Rift lakes.
Download or read book Etude limnologique written by and published by . This book was released on 1978 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Yukon River Headwater Lakes Study 1983 and 1985 written by P. F. Hamblin and published by Burlington, Ont. : Lakes Research Branch, National Water Rsearch Institute, Canada Centre for Inland Waters. This book was released on 1990 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt: Field programs carried out in order to obtain an understanding of the physical processes responsible for winter ice cover in lakes (Laberge, Marsh, Tagish) near the headwaters of the Yukon River.
Download or read book Yukon River Headwater Lakes Study 1983 and 1985 written by P. F. Hamblin and published by . This book was released on 1989 with total page 190 pages. Available in PDF, EPUB and Kindle. Book excerpt:
