45 documents found, page 1 of 5

Variability and trends of the rainy season in West Africa with a special focus ...

This study provides a novel assessment of trends in rainy season behavior (1981–2020) in West Africa by analyzing highresolution rainfall data from CHIRPS 2.0. Additionally, it presents the frst comprehensive study of rainy season characteristics in Guinea-Bissau, based on an analysis of the country's available observational data, over the same period. The agronomic method was used to determine the rainfall ons...

Recent changes in climate extremes in Guinea-Bissau

Guinea-Bissau has experienced the tangible effects of climate change in recent years. An examination of the annual and monthly precipitation patterns from 1960-2020 indicates an overall decreasing trend in climatological series. In contrast, the monthly average maximum and minimum temperatures exhibit significant increasing trends during the same period. Analysing daily rainfall and maximum and minimum temperat...

INOVAÇÃO E EXCELÊNCIA NA GEOGRAFIA: JOVENS INVESTIGADORES NAS CIÊNCIAS GEOGRÁFI...

Assessment of the record-breaking 2020 rainfall in Guinea-Bissau and impacts of...

The impacts of Climate Change are quite visible in Guinea-Bissau. Greater irregularity at the beginning and end of the rainy season, as well as in relation to the interannual variability of precipitation, are evidence that shows these phenomena in West African countries and particularly in Guinea-Bissau, where the agriculture is rain-fed. The year 2020 was characterized as very rainy in comparison to the climat...

Fragoso, M. & Louro, A. (2023). Inovação e excelência na Geografia: jovens inve...

A edição do presente número da Finisterra, o 124, assinala dois factos importantes que justificam este editorial. O primeiro facto prende-se com a necessidade de renovação da Finisterra no atual contexto da atividade editorial das revistas científicas; o segundo motivo é de natureza celebrativa, pela associação da revista às comemorações dos 80 anos do Centro de Estudos Geográficos, através do lançamento de uma...

Propósitos e compromissos

North African dust intrusions and increased risk of respiratory diseases in Sou...

The study of dust intrusions in Portugal is still a subject on which little investigation has been made, especially in terms of their effects. Thus, this work aims to achieve two goals: firstly, to characterize the dust intrusions in the study area; and secondly, to evaluate the possible statistical association between the dust intrusion days and hospital admissions due to respiratory diseases. Dust intrusions ...

A Avaliação de Riscos Climáticos nos Planos Municipais de Emergência em Portuga...

Procede-se a uma breve reflexão sobre as metodologias de avaliação da perigosidade, suscetibilidade e risco associados a diferentes tipos de condições atmosféricas adversas, no contexto do planeamento de emergência à escala municipal. A colaboração dos autores em diversos planos municipais de emergência desenvolvidos entre 2011 e 2014 suscitou a realização de diferentes abordagens metodológicas, sendo aqui suci...

Assessing heatwaves and their association with North African dust intrusions in...

Heatwaves are an extreme meteorological event in which affected populations may also be exposed to deteriorated air quality conditions due to the increase in air pollutant concentrations, such as PM10 (particulate matter < 10 µg/m3). In order to identify heatwaves (1973–2019) in the region of Faro (Algarve) during the hot season (April–September), the Excess Heat Factor (EHF) index was applied. The Mann–Kendall...

Dating historical droughts from religious ceremonies, the international pro plu...

Climate proxy data are required for improved understanding of climate variability and change in the pre-instrumental period. We present the first international initiative to compile and share information on pro pluvia rogation ceremonies, which is a well-studied proxy of agricultural drought. Currently, the database has more than 3500 dates of celebration of rogation ceremonies, providing information for 153 lo...