Representation of the Indian Ocean Walker circulation in climate models and links to Kenyan rainfall
Sign Up to like & getrecommendations! Published in 2020 at "International Journal of Climatology"
DOI: 10.1002/joc.6714
Abstract: Reliable climate change projections over East Africa are vital because of regional vulnerability to precipitation changes. However, global climate models from Coupled Model Intercomparison Project Phase 5 (CMIP5) display significant biases in their representation of… read more here.
Keywords: climate; walker circulation; ocean walker; circulation ... See more keywords
Evidence of nonlinear Walker circulation feedbacks on extreme El Niño Pacific diversity: Observations and CMIP5 models
Sign Up to like & getrecommendations! Published in 2021 at "International Journal of Climatology"
DOI: 10.1002/joc.6998
Abstract: The Walker circulation (WC) is essential for the formation and diversity of El Niño events. However, the nonlinear WC feedback during extreme Central and Eastern El Niño episodes (C and E episodes, respectively) has received… read more here.
Keywords: walker; walker circulation; diversity; ascending branch ... See more keywords
Interannual Weakening of the Tropical Pacific Walker Circulation Due to Strong Tropical Volcanism
Sign Up to like & getrecommendations! Published in 2018 at "Advances in Atmospheric Sciences"
DOI: 10.1007/s00376-017-7134-y
Abstract: In order to examine the response of the tropical Pacific Walker circulation (PWC) to strong tropical volcanic eruptions (SVEs), we analyzed a three-member long-term simulation performed with HadCM3, and carried out four additional CAM4 experiments.… read more here.
Keywords: walker circulation; pwc; pacific walker; strong tropical ... See more keywords
Zonally resolved water vapour coupling with tropical tropopause temperature: Seasonal and interannual variability, and influence of the Walker circulation
Sign Up to like & getrecommendations! Published in 2020 at "Climate Dynamics"
DOI: 10.1007/s00382-020-05255-w
Abstract: Global stratospheric water vapour is strongly coupled to the tropical cold-point tropopause temperatures. We quantified the coupling between temperature and water vapour in the TTL on seasonal and interannual time scale using 10 years of satellite… read more here.
Keywords: water; water vapour; walker circulation; temperature ... See more keywords
Pliocene Warmth Consistent With Greenhouse Gas Forcing
Sign Up to like & getrecommendations! Published in 2019 at "Geophysical Research Letters"
DOI: 10.1029/2019gl083802
Abstract: With CO2 concentrations similar to today (410 ppm), the Pliocene Epoch offers insights into climate changes under a moderately warmer world. Previous work suggested a low zonal sea surface temperature (SST) gradient in the tropical… read more here.
Keywords: greenhouse gas; consistent greenhouse; gas forcing; walker circulation ... See more keywords
Common and Distinct Drivers of Convective Mass Flux and Walker Circulation Changes
Sign Up to like & getrecommendations! Published in 2025 at "Geophysical Research Letters"
DOI: 10.1029/2024gl111897
Abstract: The weakening of convective mass flux and the Walker circulation is one of the most robust responses to global warming. However, recent decades have seen the Pacific Walker circulation strengthen despite a weakening convective mass… read more here.
Keywords: walker circulation; mass flux; convective mass; circulation ... See more keywords
Indo-Pacific Walker circulation drove Pleistocene African aridification.
Sign Up to like & getrecommendations! Published in 2021 at "Nature"
DOI: 10.1038/s41586-021-03896-3
Abstract: Today, the eastern African hydroclimate is tightly linked to fluctuations in the zonal atmospheric Walker circulation1,2. A growing body of evidence indicates that this circulation shaped hydroclimatic conditions in the Indian Ocean region also on… read more here.
Keywords: pacific walker; walker circulation; aridification; walker ... See more keywords
Decadal variations of Pacific Walker circulation tied to tropical Atlantic–Pacific trans-basin SST gradients
Sign Up to like & getrecommendations! Published in 2023 at "Environmental Research Letters"
DOI: 10.1088/1748-9326/acd12f
Abstract: During the modern satellite-monitoring era since ∼1979, the observed Pacific Walker circulation (PWC) presented a pronounced strengthening and robust westward-shifting, defying the model-projected weakening response to anthropogenic warming. The exact cause for the PWC decadal… read more here.
Keywords: eastern pacific; tropical atlantic; pacific; sst ... See more keywords
The Role of Tropical Interbasin SST Gradients in Forcing Walker Circulation Trends
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DOI: 10.1175/jcli-d-16-0349.1
Abstract: AbstractThe effects of externally forced tropical sea surface temperature (SST) anomalies on long-term Walker circulation changes are investigated through numerical atmospheric general circulation model (AGCM) experiments. In response to the observed tropics-wide SST trend, which… read more here.
Keywords: walker circulation; interbasin; circulation; equatorial pacific ... See more keywords
Seasonal Dependence of the Projected Indian Ocean Walker Circulation Uncertainty under Greenhouse Warming
Sign Up to like & getrecommendations! Published in 2025 at "Journal of Climate"
DOI: 10.1175/jcli-d-24-0480.1
Abstract: Climate models exhibit a weakening of the Indian Ocean Walker Circulation (IWC) under global warming. However, the model projections are highly uncertain. As the ocean and atmosphere are fully coupled in the tropical Indian Ocean,… read more here.
Keywords: circulation; indian ocean; walker circulation; uncertainty ... See more keywords