Influence of the Sea Surface Temperature Decadal Variability on Tropical Precipitation: West African and South American Monsoon

  • Julián  Villamayor

Part of the Springer Theses book series (Springer Theses)

Table of contents

  1. Front Matter
    Pages i-xxii
  2. Introduction to the Thesis

    1. Front Matter
      Pages 1-1
    2. Julián Villamayor
      Pages 3-53
    3. Julián Villamayor
      Pages 55-77
  3. Results I: Multi-Model Analysis

    1. Front Matter
      Pages 79-79
    2. Julián Villamayor
      Pages 81-108
    3. Julián Villamayor
      Pages 109-134
    4. Julián Villamayor
      Pages 135-159
  4. Results II: Case Study

    1. Front Matter
      Pages 177-177
  5. Concluding Remarks

    1. Front Matter
      Pages 197-197
    2. Julián Villamayor
      Pages 199-204
  6. Back Matter
    Pages 205-227

About this book


In this book the Sea Surface Temperature (SST) patterns of decadal-to-multidecadal variability observed and simulated by 17 general circulation models (GCMs) are analyzed. Furthermore, their impact on precipitation in West Africa and South America and the atmospheric mechanisms involved are assessed. Through this analysis, the effect of external forcings on these impacts and the relative contribution of decadal-to-multidecadal variability patterns of SST to precipitation are presented in depth. Finally, a humid period in the West African region of the Sahel during the 19th century, previously little documented, is analyzed using an atmospheric GCM.

The monsoons of West Africa and South America have shown changes in the timescales of a few decades. Previous work suggests a relationship with patterns of decadal-to-multidecadal variability of SST, such as global warming and the Atlantic and Pacific variability. However, the dynamics underlying this relationship and its simulation by current GCMs had not been addressed in a consistent manner. This is the main motivation of this book. The results of this book not only represent a great step forward in our understanding of the changes in the precipitation regimes of the studied regions, but they can also be of great help for the improvement of decadal prediction systems and the associated social consequences.


Tropical Precipitation Sea Surface Temperature SST General Circulation Models GCMs AMO IPO CMIP5

Authors and affiliations

  • Julián  Villamayor
    • 1
  1. 1.Department of Earth Physics and AstrophysicsUniversidad Complutense de MadridMadridSpain

Bibliographic information