IDL-BNC @ IDRC >
IDRC / CRDI >
IDRC Research Results / Résultats de recherches du CRDI >

Please use this identifier to cite or link to this item: http://hdl.handle.net/10625/47519

Title: Influences of the ENSO event on the rainfall of dry Sudan
Authors: El Gamri, Tarig
Saeed, Amir B.
Abdalla, Abdalla K.
Keywords: RAINFALL
EL NINO SOUTHERN OSCILLATION PHENOMENON (ENSO)
SUDAN
RAINFALL
ARID AND SEMI-ARID AREAS
LA NINA CURRENT
ADAPTATION TO CLIMATE CHANGE
Issue Date: 2007
Abstract: The paper highlights the factors affecting rainfall of the Sudan, its distribution and influences on the environment and socioeconomic conditions of the country. Four meteorological stations were selected in the dry zone in Sudan. These are: El Obeid, Khartoum, El Fashir and Kassala. The data obtained from these stations were averaged to represent the dry region. During years of prolonged (≥ 9 months) La Nina, rainfall of the region was generally above normal contrary to prolonged El Nino which is generally characterized by below normal rainfall. Furthermore, higher forecast capabilities were associated with the La Nina stage. In a further development, the El Nino Southern Oscillation (ENSO) event was divided into six distinct stages. During starting La Nina stage July-August- September (JAS) rainfall of the region was markedly above normal, whereas starting El Nino gave normal rainfall. For both dying La Nina and El Nino markedly below normal rainfall was recorded. As for the well established stages, it is markedly above normal for the well established La Nina and markedly below normal for well established El Nino stage. It was found that the effect of La Nina is direct and concurrent whereas El Nino works with lag-time. In addition to that bad rainy seasons were found to start early. Further studies on the rainfall of Sudan are highly recommended.
URI: http://hdl.handle.net/10625/47519
Project Number: 104146
Project Title: Managing Risk, Reducing Vulnerability and Enhancing Productivity under a Changing Climate
Document Delivery: To enquire about document delivery, contact the IDRC Library : library@idrc.ca or 613-696-2578 / Pour plus de renseignements sur la livraison de documents, communiquer avec la bibliothèque du CRDI : bibliothèque@crdi.ca ou 613-696-2578
Appears in Collections:2000-2009 / Années 2000-2009
IDRC Research Results / Résultats de recherches du CRDI
Research Results (CCAA) / Résultats de recherches (ACCA)

Files in This Item:

File Description SizeFormat
IDL-47519.pdf
79.37 kBAdobe PDF
IDRC staff can log in using their network password; non-IDRC staff can request this document.

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

 

Valid XHTML 1.0! DSpace Software Copyright © 2002-2010  Duraspace - Feedback