Historical Variability of Rainfall in the African East Sahel of Sudan
The northward migration of the African monsoon rains in summer, associated with the seasonal march of the Intertropical Convergence Zone (ITCZ) across the plains south of the Sahara, is the most critical asset for the livelihoods of indigenous peoples and
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John F. Hermance
Historical Variability of Rainfall in the African East Sahel of Sudan Implications for Development
SpringerBriefs in Earth Sciences
For further volumes: http://www.springer.com/series/8897
John F. Hermance
Historical Variability of Rainfall in the African East Sahel of Sudan Implications for Development
123
John F. Hermance Brown University Rehoboth, MA USA
ISSN 2191-5369 ISBN 978-3-319-00574-4 DOI 10.1007/978-3-319-00575-1
ISSN 2191-5377 (electronic) ISBN 978-3-319-00575-1 (eBook)
Springer Cham Heidelberg New York Dordrecht London Library of Congress Control Number: 2013943572 Ó The Author(s) 2014 This work is subject to copyright. All rights are reserved by the Publisher, whether the whole or part of the material is concerned, specifically the rights of translation, reprinting, reuse of illustrations, recitation, broadcasting, reproduction on microfilms or in any other physical way, and transmission or information storage and retrieval, electronic adaptation, computer software, or by similar or dissimilar methodology now known or hereafter developed. Exempted from this legal reservation are brief excerpts in connection with reviews or scholarly analysis or material supplied specifically for the purpose of being entered and executed on a computer system, for exclusive use by the purchaser of the work. Duplication of this publication or parts thereof is permitted only under the provisions of the Copyright Law of the Publisher’s location, in its current version, and permission for use must always be obtained from Springer. Permissions for use may be obtained through RightsLink at the Copyright Clearance Center. Violations are liable to prosecution under the respective Copyright Law. The use of general descriptive names, registered names, trademarks, service marks, etc. in this publication does not imply, even in the absence of a specific statement, that such names are exempt from the relevant protective laws and regulations and therefore free for general use. While the advice and information in this book are believed to be true and accurate at the date of publication, neither the authors nor the editors nor the publisher can accept any legal responsibility for any errors or omissions that may be made. The publisher makes no warranty, express or implied, with respect to the material contained herein. Printed on acid-free paper Springer is part of Springer Science+Business Media (www.springer.com)
Preface
A fundamental requisite for the social and economic sustainability of peoples in the semi-arid zone south of the Sahara is that both indigenous cultures and emerging economies need to adapt to the natural constraints imposed by the local environment. In the African Sahel, these constraints are prescribed by available rainfall. It follows that rainfall data, and their analysis, are essential to a variety of concerns in the region, affecting populations ranging from nomadic herders to mechanized farming. Drawing on an analysis of the historical rainfall record, this report describes the
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