CLIMATE DYNAMICS OF SOUTHERN REGION OF MOZAMBIQUE: STATISTICS AND FOURIER ANALYSIS

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Climate variability and trend. Rainy season. Fourier analysis. Southern Mozambique.

Resumo

In this study, we evaluate the climate behavior of the southern region of Mozambique in the face of the evidences of climate change at global level. Time series of precipitation, maximum and minimum temperatures related to 1960-2018 were used. The data was provided by the Instituto Nacional de Meteorologia (INAM) – Mozambique, collected from fifteen gauge stations. We have applied Statistics and Fourier analysis to assess the periodicity, long-term variability and trend of the time series. Besides, the rainy season behavior was also assessed. The results of the analyzes are related to the current global climate observations and projections contained in the fifth assessment report of the Intergovernmental Panel on Climate Change (IPCC-AR5), the latest IPCC full report by the moment of this study. Overall, the signal of climate change in Mozambique is visible. Precipitation did not show a significant trend in its variability. However, a slight decrease is noticeable in the provinces of Gaza and Inhambane. The rainy season showed a tendency to a late start and an early end, resulting in a decrease of the season length, which has dropped on average about 16 days. Extreme temperatures, on the other hand, showed a clear upward trend, with the increase being more pronounced in the minimum temperature than the maximum temperature. The maximum temperature increased by about 0.7 °C and the minimum temperature increased by about 1.5 °C during the analyzed period. These results are in line with the observations and projections contained in the IPCC-AR5 regarding the Austral Africa which include Mozambique.

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Publicado

21-09-2021

Como Citar

Ussalu, J. L. M., & Bassrei, A. (2021). CLIMATE DYNAMICS OF SOUTHERN REGION OF MOZAMBIQUE: STATISTICS AND FOURIER ANALYSIS. Revista Brasileira De Climatologia, 29, 132–156. Recuperado de https://ojs.ufgd.edu.br/index.php/rbclima/article/view/15172

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v. 29 (2021)

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