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Showing 1–7 of 7 results
Advanced filters: Author: S. N. Nnamchi Clear advanced filters

  • Evolution of the El Niño-Southern Oscillation through the Holocene remains uncertain. Here, via fully coupled model simulations, the authors show that increased Saharan vegetation and reduced dust emissions 6 kyr BP significantly affect ENSO variability through changes in the West African Monsoon strength.

    • Francesco S. R. Pausata
    • Qiong Zhang
    • Zhengyu Liu
    ResearchOpen Access
    Nature Communications
    Volume: 8, P: 1-12

  • The nature of the El Niño-like variability in the Atlantic Ocean and its limited predictability remain unresolved. Here, via multi-model numerical experiments, the authors show that much of the variability can be explained by the interaction of stochastic atmospheric fluctuations with the ocean mixed layer.

    • Hyacinth C. Nnamchi
    • Jianping Li
    • Riccardo Farneti
    ResearchOpen Access
    Nature Communications
    Volume: 6, P: 1-10

  • The relative roles of the ocean and atmosphere for the Atlantic Niño is poorly understood. Here, we show that its seasonality is governed by atmospheric diabatic heating that is associated with the seasonal migration of the inter-tropical convergence zone.

    • Hyacinth C. Nnamchi
    • Mojib Latif
    • Ingo Richter
    ResearchOpen Access
    Nature Communications
    Volume: 12, P: 1-10

  • The El Niño–Southern Oscillation (ENSO) has substantial impacts on the global climate. This Review outlines ENSO relationships with Africa, outlining their dynamics, impacts on precipitation and projected changes in the future.

    • Wenju Cai
    • Chris Reason
    • Joseph N. Mutemi
    Reviews
    Nature Reviews Earth & Environment
    Volume: 6, P: 503-520

  • Variations in Atlantic Ocean circulation on timescales of 10 to 15 years lead the pan-Atlantic Decadal Oscillation, a pattern of north-south bands of temperature anomalies, and may exert an important influence, suggests an analysis of observations from 1900 to 2009.

    • Hyacinth C. Nnamchi
    • Riccardo Farneti
    • Thomas Martin
    ResearchOpen Access
    Communications Earth & Environment
    Volume: 4, P: 1-9