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Rainfall variability in the Republic of Congo

Rainfall variability in the Republic of Congo

Geoffroy Ibiassi Mahoungou

142,70 €
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Editorial:
KS OmniScriptum Publishing
Año de edición:
2023
Materia
Geografía
ISBN:
9786205911327
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In this book, an analysis is undertaken of the relationships between rainfall variability in the Republic of Congo and atmospheric and oceanic dynamics. Three types of indices are used: rainfall indices (North-Congo Index, Centre-Congo Index, South-Congo Index); oceanic indices: AMO (Atlantic Multi-decadal Oscillation), NAO (North Atlantic Oscillation), SOI (Southern Oscillation Index) and Nino3_4; atmospheric indices (geopotential at 1000 hPa). The evolution of annual and seasonal precipitation shows a significant downward trend since 1980. Parametric and non-parametric tests (Mann-Kendall, Pettitt, Buishand, Hubert) confirm 1970 as the year of break in the precipitation time series. Two major periods stand out: 1950-1970 (wet) and 1971-2005 (dry). The canonical correlations between rainfall indices, oceanic indices and atmospheric indices on an annual and seasonal scale reveal a relatively strong link, materialized by significant correlations.

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Otros libros del autor

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    Neste livro, é feita uma análise das relações entre a variabilidade da pluviosidade na República do Congo e a dinâmica atmosférica e oceânica. São utilizados três tipos de índices: índices pluviométricos (Índice Norte-Congo, Índice Centro-Congo, Índice Sul-Congo); índices oceânicos: AMO (Oscilação Multi-decadal do Atlântico), NAO (Oscilação do Atlântico Norte), SOI (Índice de O...
  • Variabilità delle precipitazioni nella Repubblica del Congo
    Geoffroy Ibiassi Mahoungou
    In questo libro si analizzano le relazioni tra la variabilità delle precipitazioni nella Repubblica del Congo e le dinamiche atmosferiche e oceaniche. Vengono utilizzati tre tipi di indici: indici pluviometrici (North-Congo Index, Centre-Congo Index, South-Congo Index); indici oceanici: AMO (Atlantic Multi-decadal Oscillation), NAO (North Atlantic Oscillation), SOI (Southern Os...