ATMOSPHERIC CHEMISTRY AND PHYSICS

Two considerations motivated us to undertake the Second Edition of this book. First, a number of important developments have occurred in atmospheric science since 1998, the year of the First Edition, and we wanted to update the treatments in several areas of the book to reflect these advances in understanding of atmospheric processes. New chapters mhave been added on chemical kinetics, atmospheric radiation and photochemistry, global circulation of the atmosphere, and global biogeochemical cycles. The chapters on stratospheric and tropospheric chemistry and organic atmospheric aerosols have been revised to reflect the current state of understanding in this area. The second consideration relates to the style of the book. Our goal in the First Edition was, and continues to be, in the Second Edition, both rigor and thoroughness. The First Edition has been widely used as a course textbook and reference text worldwide; feedback we have received from instructors and students is that additional examples would aid in illustrating the basic theory. The Second Edition contains numerous examples, delineated by vertical bars offsetting the material. In order to prevent an already lengthy book from becoming unwieldy with the new additions, some advanced material from the First Edition, generally of interest to specialists, has been omitted. Problems at the end of the chapters have been thoroughly reconsidered and updated. While many of the problems from the First Edition have been retained, in a number of chapters substantially new problems have been added. These problems have been used in courses at Caltech (California Institute of Technology), Carnegie Mellon, and the University of Patras. Many colleagues have provided important material, as well as proofreading suggestions. Special appreciation is extended to Wei-Ting Chen, Cliff Davidson, Theodore Dibble, Mark Lawrence, Sally Ng, Tracey Rissman, Ross Salawitch, Charles Stanier, Jason Surratt, Satoshi Takahama, Varuntida Varutbangkul, Paul Wennberg, and Yang Zhang. Finally, Ann Hilgenfeldt and Yvette Grant skillfully prepared the manuscript for the Second Edition.