Equatorial African climate teleconnections

@article{Jury2009EquatorialAC,
  title={Equatorial African climate teleconnections},
  author={Mark R. Jury and Eliakim Elimsu Matari and M. Matitu},
  journal={Theoretical and Applied Climatology},
  year={2009},
  volume={95},
  pages={407-416}
}
Teleconnections between equatorial African climate and the surrounding circulation are examined using a convective index over the Congo River Basin in March to May (MAM) and July to September (JAS) seasons. Its influence on the wider region is determined through lag correlation and cross-wavelet analysis. During seasons of deeper convection, easterly winds weaken over the tropical Atlantic (anomalous flow toward Africa), whilst upper westerly winds weaken over southern Africa (in JAS). We view… 
Climate and weather factors modulating river flows in southern Angola
The large‐scale circulation and thermodynamic fields that modulate the flow of the Kavango River in southern Angola during austral summer are studied. According to composite patterns constructed from
Convective Squalls over the Eastern Equatorial Atlantic
The Congo Basin and the adjacent equatorial eastern Atlantic are among the most active regions of the world in terms of intense deep moist convection, leading to frequent lightning and severe
Mechanisms Linking Global 5-Day Waves to Tropical Convection
AbstractReanalysis data and satellite-derived rainfall measurements are examined to determine possible mechanisms linking the “5 day” Rossby–Haurwitz wave to localized variations of tropical
A return to wet conditions over Africa: 1995–2010
  • M. Jury
  • Environmental Science
    Theoretical and Applied Climatology
  • 2012
Climatic trends over sub-Saharan Africa are described using major river flows, European Community Medium-Range Weather Forecasts, Coupled Forecast System, global land surface data assimilation and
Congo Basin rainfall climatology: can we believe the climate models?
TLDR
The paper suggests an approach, via a targeted field campaign, for generating useful climate information with which to confront rainfall products and climate models.
A Process-Based Assessment of CMIP5 Rainfall in the Congo Basin: The September–November Rainy Season
Congo basin September–November rainfall varies by up to a factor of 3 across CMIP5 coupled models. The severe lack of observational data in this region makes model evaluation difficult using standard
A Process-Based Assessment of CMIP5 Rainfall in the Congo Basin: The September–November Rainy Season
Congo basin September–November rainfall varies by up to a factor of 3 across CMIP5 coupled models. The severe lack of observational data in this region makes model evaluation difficult using standard
Flood-producing cloud bands over the Kalahari Desert
The characteristics of flood-producing cloud bands over the Kalahari Desert (15-30°S, 15-22°E) are described using daily time-scale observations, reanalysis and satellite data. The cloud band extends
Diagnosis and predictability of intraseasonal characteristics of wet and dry spells over equatorial East Africa
Most of Eastern Africa has arid and semi-arid climate with high space-time variability in rainfall. The droughts are very common in this region, and often persist for several years, preceded or
...
...

References

SHOWING 1-10 OF 23 REFERENCES
Climate variability in central equatorial Africa: Influence from the Atlantic sector
We document a strong teleconnection between Central Equatorial African (CEA) rainfall (and Congo River discharge) and the large‐scale circulation over the North Atlantic, throughout the boreal
Seasonality and atmospheric dynamics of the teleconnection between African rainfall and tropical sea‐surface temperature: Atlantic vs. ENSO
A 47‐year record (1951–1997) of gridded data covering Africa south of the Sahara was used to document the spatial and seasonal patterns of the correlation between precipitation and sea‐surface
Atmospheric-hydrospheric mechanisms of climate anomalies in the western equatorial Indian Ocean
Atmosphere-ocean mechanisms of rainfall anomalies at the coast of eastern Africa are studied using long-term ship observations in the Indian Ocean, surface current measurements, subsurface casts,
Intra-seasonal rainfall oscillations over central Africa: space-time character and evolution
SummaryThe spatial and temporal structure of intra-seasonal oscillations over central Africa are investigated using 21 years (1980–2000) of pentad (5 day) rainfall and low level wind. The dominant
North Atlantic Oscillation Influence on Precipitation Variability around the Southeast African Convergence Zone
Abstract The relationship between the North Atlantic oscillation (NAO) and austral summer (December–February) rainfall variability over southeastern Africa is described. Thirty-one stations in
Interdecadal variability of the relationship between the Indian Ocean zonal mode and East African coastal rainfall anomalies
Abstract The variance of the rainfall during the October–November–December (OND) “short rain” season along the coast in Kenya and Tanzania correlates strongly with sea surface temperature (SST) in
Possible impacts of Indian Ocean Dipole mode events on global climate
Impacts of Indian Ocean Dipole mode (IOD) events on global climate are estimated by correlation/regression analysis. The analysis examined land rain and temperature and 3-dimensional atmospheric
Spatial Dependence of the Relationship between Rainfall and Outgoing Longwave Radiation in the Tropical Atlantic
Abstract We develop a Spatially dependent formula to estimate rainfall from satellite-derived outgoing longwave radiation (OLR) data and the height of the base of the trade-wind inversion. This
An investigation of the Annual Cycle of Convective Activity over the Tropical Americas.
Abstract Outgoing longwave radiation (OLR) is used to describe the annual cycle of convection that resides over the Amazon Basin during austral summer and over Central America and the adjacent waters
...
...