Long-term oceanographic measurements along the Brazilian coast: Characteristics and Perspectives

Despite some initiatives, there is still a lack of long-term oceanographic measurements on the Brazilian coast, especially with free available data. Basically, only sea level measurements present time series long enough to characterize interannual variability. Since 2011, the National Buoys Program (PNBOIA), the Brazilian contribution to the Global Ocean Observation System (GOOS), has deployed a series of buoys, typically on the 200-m isobathymetric, to collect meteorological and oceanographic data. Besides, the GLOSS-Brasil (*Global Sea Level Observing System*) had improved the quality of the sea level measurements, with more stations and more accurate equipment. In this sense, IEAPM maintains a tidal station since 1999, and has acquired a meteo-oceanographic buoy, that will be launched by the end of this year, in the upwelling area near Arraial do Cabo, RJ.