''Atmosphere, Weather and Climate'' is the essential introduction to weather processes and climatic conditions around the world, their observed variability and changes, and projected future trends. Extensively revised and updated, this ninth edition retains its popular tried and tested structure while incorporating recent advances in the field. From clear explanations of the basic physical and chemical principles of the atmosphere, to descriptions of regional climates and their changes, ''Atmosphere, Weather and Climate'' presents a comprehensive coverage of global meteorology and climatology. In this new edition the latest scientific ideas are expressed in a clear, non-mathematical matter.New features include: rewritten chapter 13 to take account of the 2007 IPCC findings on climate change; expanded material on teleconnection patterns and associated climatic anomalies; updated discussion of GCMs used in the Fourth IPCC, and NCEP/NCAR and ERA-40 reanalysis schemes; new four color text design featuring over 40 color plates; over 360 diagrams that have been redrawn in full color to improve clarity and aid understanding; and, increased number of boxes highlighting topical issues and 20th century advances.