THE NATIONAL ACADEMIES PRESS     500 Fifth Street, N.W.      Washington, DC 20001

NOTICE: The project that is the subject of this report was approved by the Governing Board of the National Research Council, whose members are drawn from the councils of the National Academy of Sciences, the National Academy of Engineering, and the Institute of Medicine. The members of the committee responsible for the report were chosen for their special competences and with regard for appropriate balance.

This study was supported by Contract/Grant No. DG133R-08-CQ-0062, OCE-0946330, NNX09AU42G, and G09AP00160 between the National Academy of Sciences and the National Oceanic and Atmospheric Administration, National Science Foundation, National Aeronautics and Space Administration, and U.S. Geological Survey. Any opinions, findings, conclusions, or recommendations expressed in this publication are those of the author(s) and do not necessarily reflect the views of the organizations or agencies that provided support for the project.

International Standard Book Number-13:   978-0-309-15359-1 (Book)
International Standard Book Number-10:   0-309-153659-X (Book)
International Standard Book Number-13:   978-0-309-15360-7 (PDF)
International Standard Book Number-10:   0-309-15360-X (PDF)
Library of Congress Catalog Card Number 2010934135

Additional copies of this report are available from the National Academies Press, 500 Fifth Street, N.W., Lockbox 285, Washington, DC 20055; (800) 624-6242 or (202) 334-3313 (in the Washington metropolitan area); Internet, http://www.nap.edu.

Copyright 2010 by the National Academy of Sciences. All rights reserved.

Printed in the United States of America



The National Academies | 500 Fifth St. N.W. | Washington, D.C. 20001
Copyright © National Academy of Sciences. All rights reserved.
Terms of Use and Privacy Statement