West African monsoon: is the August break “breaking” in the eastern humid zone of Southern Nigeria?

Chineke, Theo Chidiezie; Jagtap, S. S.; Nwofor, O. K.

doi:10.1007/s10584-009-9780-2

Cited by 21 publications

(15 citation statements)

References 27 publications

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“…The breaking of the precipitation arising during August had been observed by Chineke et al . () using the in situ measurement to analyse the West African monsoon.…”

Section: Resultsmentioning

confidence: 99%

“…Generally many continental and extra-continental modes, including several internal conditions with complicated superposition, are obviously in action. Long series of precipitation data offer the utility of identifying the major interdecadal trends characteristics (Chineke et al, 2010). These temporal evolutions of precipitation are therefore useful in predicting large-scale temporal precipitation patterns and have a wide range of implications for water-related activities (agriculture, fishing, marine transport and construction, hydroelectricity generation, etc.)…”

Section: Precipitations and Temperature In Africamentioning

confidence: 99%

“…However, the model only captured one rainy season in the months of June and July, when in fact there is a dry period in the transition phase of monsoon circulation. The breaking of the precipitation arising during August had been observed by Chineke et al (2010) using the in situ measurement to analyse the West African monsoon. Figures 9 and 10 show the continental-scale impacts of climate change, i.e.…”

Section: Nigeriamentioning

confidence: 99%

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Modelling present and future African climate usingCMIP5scenarios inHadGEM2‐ES

Dike

Shimizu

Diallo

et al. 2014

Intl Journal of Climatology

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The present precipitation and temperature patterns and expected future changes (2073–2098) in Africa are investigated using the Hadley Centre Global Environmental Model 2‐Earth System (HadGEM2‐ES) under the fifth phase of the Coupled Model Intercomparison Project (CMIP5) protocols for historical and future emission scenarios simulations. In a CMIP5 multimodel analysis, the annual cycles of temperature and precipitation simulated by HadGEM2‐ES were very close to the multimodel ensemble mean. HadGEM2‐ES temperature simulation compares well with the National Center for Atmospheric Research (NCAR) reanalysis over the 1979–2004 periods, except for a summer overestimation in Central Africa, and a winter underestimation in tropical West Africa. The precipitation simulation compared well with the Global Precipitation Climatology Project (GPCP) data from 1979 to 2004 over the entire Africa, except in the Intertropical Convergence Zone (ITCZ), where the model fails to capture adequately the transition phase of the monsoon circulation. The dry regimes over Northern Africa as well as the wetter regime occurring over Central Africa, which is mainly regulated by the ITCZ displacement, and during the austral summer of Southern Africa, are also fairly reproduced by the HadGEM2‐ES model. The model projects for the end of the 21st century a rainy South Africa, a change of the flood/drought cycle in the Tropics and a warming over the whole continent, varying from 3 to 7 °C. HadGEM2‐ES performance for Nigeria shows good reproduction of precipitation seasonal cycles for some locations, outside the ITCZ. However, the comparison with in situ measurement in Ilorin and Lagos shows the model is not being able to reproduce the precipitation annual cycle. Future projections for Nigeria exhibit warming everywhere and an enhancement of precipitation, especially in the northern part of the country.

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“…The breaking of the precipitation arising during August had been observed by Chineke et al . () using the in situ measurement to analyse the West African monsoon.…”

Section: Resultsmentioning

confidence: 99%

Section: Precipitations and Temperature In Africamentioning

confidence: 99%

Section: Nigeriamentioning

confidence: 99%

See 1 more Smart Citation

Modelling present and future African climate usingCMIP5scenarios inHadGEM2‐ES

Dike

Shimizu

Diallo

et al. 2014

Intl Journal of Climatology

Self Cite

View full text Add to dashboard Cite

show abstract

“…Changes in the intensity and pattern of rain storms coupled with land-use changes and subsequent changes in the hydrological fluxes of urban watershed associated with rapid urban growth have increased flood risks in many parts of the zone (Adelekan, 2010). Local impacts of global warming including sea-level rise and changing seasonal patterns of rainfall observed as decrease or virtual disappearance of the short dry season and reduced number of raindays have been experienced in Nigeria's coastal zone (Adelekan, 2010;Chineke, Jagtap, & Nwofor, 2010;Nwilo, 1997). Frequent storm surges have also increased the incidence of coastal flooding.…”

Section: Climate Changementioning

confidence: 99%

Vulnerability of artisanal fishing communities to flood risks in coastal southwest Nigeria

Adelekan

Fregene

2014

Climate and Development

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“…Though there is no concrete evidence to this phenomenon but it has been attributed to ITD [15][16][17][18].…”

mentioning

confidence: 99%

The Season and Diurnal Cycles of Surface Level Refractivity on Electromagnetic Wave Path in Lagos, Nigeria

Falade¹,

Adesanya²

2018

JRE

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Abstract. Data obtained from Nigerian Environmental Climatic Observing Program(NECOP) station located at the University of Lagos, Akoka were employed to study the variation of surface radio refractivity for Lagos. Attention were focused on seasonal variation because the diurnal variation though could be abrupt, but the period of occurrence is short compared to the seasonal variation of the surface

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West African monsoon: is the August break “breaking” in the eastern humid zone of Southern Nigeria?

Cited by 21 publications

References 27 publications

Modelling present and future African climate usingCMIP5scenarios inHadGEM2‐ES

Modelling present and future African climate usingCMIP5scenarios inHadGEM2‐ES

Vulnerability of artisanal fishing communities to flood risks in coastal southwest Nigeria

The Season and Diurnal Cycles of Surface Level Refractivity on Electromagnetic Wave Path in Lagos, Nigeria

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