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
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
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Climate"
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