Western Disturbances - An Indian Meteorological Perspective
This book examines the meteorological phenomenon known as Western Disturbances (WDs) and traces their influence on the Indian subcontinent. It fully details the unique characteristics and dynamics of these disturbances, which produce large-scale instabili
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stern Disturbances - An Indian Meteorological Perspective
Western Disturbances - An Indian Meteorological Perspective
A.P. Dimri • Amulya Chevuturi
Western Disturbances - An Indian Meteorological Perspective
A.P. Dimri School of Environmental Sciences Jawaharlal Nehru University New Delhi, India
Amulya Chevuturi School of Environmental Sciences Jawaharlal Nehru University New Delhi, India
ISBN 978-3-319-26735-7 ISBN 978-3-319-26737-1 DOI 10.1007/978-3-319-26737-1
(eBook)
Library of Congress Control Number: 2016930300 © Springer International Publishing Switzerland 2016 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. 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. The publisher, the authors and the editors are safe to assume that the advice and information in this book are believed to be true and accurate at the date of publication. Neither the publisher nor the authors or the editors give a warranty, express or implied, with respect to the material contained herein or for any errors or omissions that may have been made. Printed on acid-free paper This Springer imprint is published by SpringerNature The registered company is Springer International Publishing AG Switzerland.
Foreword
The Indian subcontinent experiences mainly four seasons. Among them, the Southwest monsoon season (June to September) is the most important season as it contributes 70–90 % of the annual rainfall over the country. However, the northern parts of the country and neighboring Pakistan also experience a wet season during the winter, due to the passage of western disturbances, winter weather systems moving eastwards across the region. This season is very important as it plays an major role in the winter crop (Rabi) production and hydrology over the region. This region has a complex topography due to the Himalayas. The weather systems moving across this region interact with this complex topography and lead to more complexity to the dynamics and predictability of weather systems. The synoptic features and dynamics of these weather systems were not explored in the past due to lack of adequate observations and modeling efforts. Over the years, our understanding of these winter weather systems has improved substantially due to improvement of observational networks over the region and systematic modeling efforts. Better understanding of these systems has also helped to improve weather prediction skill
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