Abnormal Hydrographical Conditions in the Menai Straits

Abstract

RECORDS of the temperature and salinity of the water passing through the Menai Straits have been maintained in this laboratory for several years. Samples for salinity determinations are taken regularly at the end of Menai Bridge pier. All the evidence available suggests that samples taken at this point are truly representative of the main water mass in the Straits at the time. Table 1 shows the monthly mean salinities recorded over a period of six years (1955–60) together with the records for the first eight months of 1961.