Using the databases of the ocean climate laboratory of the NODC NOAA for constructing climatology maps by the example of the upwelling area at the coast of Southern Vietnam

Maps of monthly temperature means of the South China Sea at 0- and 50-m depths were constructed using the WOD98 oceanological database. Analysis of the maps confirmed the climatological character of coastal upwelling operating at the coast of Southern Vietnam in June–August. The upwelling area is a natural protection of Southern Vietnam against tropical cyclones. The oceanological databases should be used after their check for stations with erroneous coordinates.