Note
Current-meter data and water level measurements from Upper LagunaMadre, Texas, are used to explain a north-to-south increase in both themulti-annual average salinity and the standard deviation about the average.Long-period exchanges, and to a lesser extent co-oscillating tidalmotions, between Corpus Christi Bay and Upper Laguna Madre buffersalinity extremes arising from temporal variations in the local balancebetween precipitation and evaporation. The observed salinity distributionappears to reflect the penetration of meteorologically forced exchangesinto Upper Laguna Madre.