Analysis of Precipitations by Non-Parametric Tests of Mann-Kendall and Kruskal-Wallis

Júnior, Jório Bezerra Cabral; Lucena, Rebecca Luna

doi:10.4215/rm2020.e19001

Cited by 16 publications

(8 citation statements)

References 11 publications

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“…Brazil, an inland location about 230 km from Maracajaú reef, which documents increasing precipitation over the period of 1957 to 1972 (Fig. 6A) (Júnior and Lucena, 2020). Although the exact timing of the SSS freshening indicated by our Maracajaú reef Maximum Water from the North Atlantic for the period of 1890-1990, where they observed a consistent increase in δ 18 Oseawater from 1950 to 1990. suggested that the change in salinity is related to recent intensification of the North Atlantic Oscillation index, which is known to intensify the tradewinds in the tropical and subtropical North Atlantic (Marshall et al 2001).…”

Section: Role Of the Itcz In Tropical Brazilian Atlantic Ocean Changesupporting

confidence: 50%

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Mid to late 20th century freshening of the western tropical South Atlantic triggered by southward migration of the Intertropical Convergence Zone

Pereira

Clarke

Chiessi

et al. 2022

Palaeogeography, Palaeoclimatology, Palaeoecology

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Section: Role Of the Itcz In Tropical Brazilian Atlantic Ocean Changesupporting

confidence: 50%

“…Land-based precipitation records can be longer, but few span the whole 20 th century, particularly over South America (e.g. Júnior and Lucena 2020). Thus, high temporal resolution tropical marine paleoclimate records sensitive to ITCZ-related seawater salinity changes are needed to extend our understanding of ITCZ dynamics.…”

Section: Introductionmentioning

confidence: 99%

Mid to late 20th century freshening of the western tropical South Atlantic triggered by southward migration of the Intertropical Convergence Zone

Pereira

Clarke

Chiessi

et al. 2022

Palaeogeography, Palaeoclimatology, Palaeoecology

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“…The RMSE, when considered against the backdrop of the broad range of rainfall amounts, points to a relatively minor average deviation from the station data, underscoring the dataset's reliability for practical applications. Moreover, the high R² value indicates that the CHIRPS dataset can account for the vast majority of the variance in rainfall patterns, making it an invaluable tool for climatological studies, agricultural planning, and water resource management in Rwanda, and this result concurs with the previous research over the country [38,39]. This comparison not only highlights the potential of satellite-derived datasets like CHIRPS in enhancing our understanding of climate dynamics, but also underscores their importance in supporting decision-making processes in regions prone to climate variability.…”

Section: Evaluation Of Chirps Dataset With Station Datasupporting

confidence: 89%

Investigation of the Historical Trends and Variability of Rainfall Patterns during the March–May Season in Rwanda

Uwizewe,

Jianping,

Habumugisha

et al. 2024

Atmosphere

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This study explores the spatiotemporal variability and determinants of rainfall patterns during the March to May (MAM) season in Rwanda, incorporating an analysis of teleconnections with oceanic–atmospheric indices over the period 1983–2021. Utilizing the Climate Hazards Group Infrared Precipitation with Stations (CHIRPS) dataset, the study employs a set of statistical tools including standardized anomalies, empirical orthogonal functions (EOF), Pearson correlation, the Mann–Kendall (MK) trend test, and Sen’s slope estimator to dissect the intricacies of rainfall variability, trends, and their association with large-scale climatic drivers. The findings reveal a distinct southwest to northwest rainfall gradient across Rwanda, with the MK test signaling a decline in annual precipitation, particularly in the southwest. The analysis for the MAM season reveals a general downtrend in rainfall, attributed in part to teleconnections with the Indian Ocean Sea surface temperatures (SSTs). Notably, the leading EOF mode for MAM rainfall demonstrates a unimodal pattern, explaining a significant 51.19% of total variance, and underscoring the pivotal role of atmospheric dynamics and moisture conveyance in shaping seasonal rainfall. The spatial correlation analysis suggests a modest linkage between MAM rainfall and the Indian Ocean Dipole, indicating that negative (positive) phases are likely to result in anomalously wet (dry) conditions in Rwanda. This comprehensive assessment highlights the intricate interplay between local rainfall patterns and global climatic phenomena, offering valuable insights into the meteorological underpinnings of rainfall variability during Rwanda’s critical MAM season.

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“…Na comparação dos domínios da escala de burnout com variáveis categóricas de interesse, com os componentes e classificação da escala do sono, foram aplicados os testes de Mann-Whitney (duas categorias) e Kruskal-Wallis (três ou mais categorias). Foi adotado um nível de significância de 5% (p<0,05) (15) .…”

Section: Métodosunclassified

Sleep quality and burnout in higher education teachers

Barbosa,

Mallagoli,

Okuno

et al. 2023

Rev Rene

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Objective: to evaluate the association of sleep quality and the presence of burnout syndrome with the epidemiological profile of higher education teachers. Methods: an observational, analytical, cross-sectional study of 140 teachers, using the Pittsburgh Sleep Quality Index and the Maslach Burnout Inventory. Results: in the sample, the majority was female (54.3%), aged between 26 and 40 years (58.6%). There was a predominance of teachers with a specialist title (48.6%), with a salary range of up to R$ 5,000.00 (85.7%), with two or more employment relationships (52.1%). It was found that teachers who received more than R$ 5,000.00 (p=0.003), with two or more jobs, classified the usual sleep efficiency as poor/feeble (p=0.027). However, those with good subjective sleep quality had lower scores in the Emotional exhaustion (p=0.005) and Depersonalization domains in relation to the syndrome (p=0.023). Conclusion: several factors contribute to the development of sleep-related disorders in teachers, making them more susceptible to the manifestation of burnout. Contributions to practice: the results can support preventive measures for the health of teachers and maintain the quality of their work activities, aiming to reduce the mediation effect of the variables that favor psychological exhaustion.

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Analysis of Precipitations by Non-Parametric Tests of Mann-Kendall and Kruskal-Wallis

Cited by 16 publications

References 11 publications

Mid to late 20th century freshening of the western tropical South Atlantic triggered by southward migration of the Intertropical Convergence Zone

Mid to late 20th century freshening of the western tropical South Atlantic triggered by southward migration of the Intertropical Convergence Zone

Investigation of the Historical Trends and Variability of Rainfall Patterns during the March–May Season in Rwanda

Sleep quality and burnout in higher education teachers

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