Analysis of Drought in Eastern Part of Bangladesh
Keywords:Drought, IdM, IhS, IcD, Annual rainfall assurance (A%)
Analysis of drought is very important for the irrigation purpose of a country. In this work analysis of drought in the eastern part of Bangladesh has been studied. Yearly meteorological drought has been analyzed by comparing the yearly rainfall deficiency with the mean yearly rainfall. Yearly drought analysis has also been performed by three climatic indexes. The climatic indexes are De Mortone Aridity Index, IdM; Seleaninov Hydrothermic Index, IhS; and Donciu Climate Index, IcD. With the help of annual rainfall assurance (A%) yearly drought analysis has been performed by the climatic indexes. Monthly drought analysis has been done with the rainfall data, considering average rainfall and minimum rainfall for a month. In this study 17 meteorological stations have been chosen for analysis. Distribution of rainfall, annual variation of rainfall, yearly drought and percentage of drought affected areas has been presented with the help of different figures and tables. Monthly drought analysis shows that generally the month of January, February, March, November and December are drought affected. The month of April faces drought almost every year. May and October face drought occasionally. The months June, July, August and September experience heavy rainfall.
Keywords: Drought; IdM; IhS; IcD; Annual rainfall assurance (A%).
Daffodil International University Journal of Science and Technology Vol.7(1) 2012 20-27
How to Cite
Copyright and Reprint Permissions
This journal and the individual contributions contained in it are protected by the copyright of Daffodil International University. Photocopies of this journal in full or parts for personal or classroom usage may be allowed provided that copies are not made or distributed for profit or commercial advantage and the copies bear this notice and the full citation. Copyright for components of this work owned by others than Daffodil International University must be honored. Abstracting with credit is permitted. Specific permission of the publisher and payment of a fee are required for multiple or systemic copying, copying for advertising or promotional purposes, resale, republishing, posting on servers, redistributing to lists and all forms of document delivery.
Subscribers may reproduce table of contents or prepare lists of articles including abstracts for internal circulation within their institutions. Permission of the publisher is required for resale and distribution outside the institution. Permission of the publisher is required for all other derivative works, including compilations and translations. Except as outlined above, no part of this publication may be reproduced, stored in a retrieval system or transmitted in any form or by any means, electronic, mechanical, photocopying, recording or otherwise, without prior written permission of the publisher.
Permissions may be sought directly from Daffodil International University; email: firstname.lastname@example.org.