Análise espácio-temporal das condições ocupacionais nas zonas susceptíveis a inundação devido as marés na margem do estuário dos Bons Sinais

Abstract

The present work aims to analyze how occupational conditions in areas susceptible to flooding due to tides on the edge of the estuary Bons Sinais Quelimane city contributing to a comparative evaluation as areas occupied in the period from 2002 to 2016 and to the analysis of seas in areas susceptible to Inundation. The work consisted in the mapping of 9 occupied zones (A á I) from 2002-2016, where each zone corresponds to a neighbourhood, faces a vulnerability of floods due to tides, and analysed as tides in two points and falls in zones of one random form. Using the Google Hearth program, they were mapped as zones and estimated as areas and distances of zones. Achieve the largest popular occupation in the area about 38866m2 in the area Dace to the Neighbourhood Av.Maputo in the year 2002 and minimum occupancy in the zoneI, neighbourhood Sangarivera with 521m2 of area. And in the year 2016, maximum values were observed in zone B, in the new neighbourhood with 213438m2, and minimum values in zone G, in the district Chirangano, with 16192m2.de area. These results show that there is a breakthrough in what concerns an occupation in these coastal areas, which makes it susceptible to flood due as tides. (TMD), where it was observed a maximum height of 4.1m and a minimum of 0.8m in 2002 and for the year 2016 a maximum tide height of 3.4m and a minimum of 1m was recorded. The analysis allowed concluding that as tides that dug in the estuary of Good Signs influence the flooding of occupied areas.