Análise climatológica das ondas no canal de Moçambique

Abstract

The present work had as main objective the analysis of the wave regime in the Mozambique Channel through a database that includes the period between 1992 and 2013 for the Significant wave height and 2007 to 2017 for the wind speed. The characterization of the wave and wind climatological regime was made based on statistical analysis. Analysis this is done using python, where the spatial distribution and the monthly and yearly use the techniques that allow a mapping of the distribution. The temporal analyzes were comprehend at 3 points off the coast of Mozambique For trends, spatial distribution and temporal analyzes (monthly and yearly). The results indicate that waves with higher significant heights are recorded in the southern region, decreasing in direction to the north. The largest waves occur, in average in the southern region during the winter, in the northern region observe if in the summer months. being the northern region dominated by lower Swh values and lower wind speeds, with values ranging from 0 to 1.5m Swh and 3 to 5m / s with the highest values of Swh and Ws found in the south of the channel, presenting values between 2 to 3m / s of Swh and 7 to 9m / s. In the monthly analyzes they show that higher Swh and Ws values occur during the winter season whereas the quieter conditions generally occur in the summer period (November to February). And that the highest values were observed in the coast of Maputo and the smaller ones in the coast of Beira and an increase of the coast of Nacala. In relation to Ws having been observed the same pattern with that of swh. In relation to the yearly variability, they show that in all points the highest values of the swh verify that in the winter months (June or July), the lows occur in the summer months (November to February).