TITLE:
Estimation of Sea Level Rise on the West African Coasts: Case of Senegal, Mauritania and Cape Verde
AUTHORS:
Cheikh Ahmed Tidiane Sarr, Mouhamadou Moustapha Mbacké Ndour, Mahdi Haddad, Issa Sakho
KEYWORDS:
Sea Level, Trend Analysis, Senegal, Palmeira, Nouakchott
JOURNAL NAME:
International Journal of Geosciences,
Vol.12 No.2,
February
22,
2021
ABSTRACT: The
advent of technology in the world has led to enormous, varying economic and
social changes. Those changes have influenced the climate balance, which leads
to global temperature rise, hence oceanic expansion and melting glaciers. These
various phenomena caused the variation in the mean sea level. Thus, in this
study we have evaluated that variation from the instrumental recordings of the
tide gauges available in the region, which led us to choose the tide gauges of
Dakar (Senegal), Nouakchott (Mauritania) and Palmeira (Cape Verde). The
analysis of the tidal series began with the test of presence or absence of
significant trends in the series using the Man-Kendall method followed by the
decomposition of these series using the SSA, ARIMA and SLT techniques, which
would result in the trend, seasonality and residues. The results of this
analysis show a variation of 1.52 mm/year, 4.51 mm/year and 20.08 mm/year
respectively for the Dakar, Palmeira and Nouakchott tide gauges.