Figure 4. Cartoon to illustrate probable change in fluid-flow regime between lowstand and highstand periods. During lowstands, the banks are exposed setting up freshwater flow through the upper portions of the platform while thermally driven flow continues farther offshore. During highstands, the banks are flooded, shutting off the freshwater flow and allowing venting of the thermal flow at the bank top. Note that Site 1005, close to the platform, experiences flow which is out of the banks during lowstands and into the banks during highstands. Other sites experience continual inward flow, although the rate of flow probably varies. This scenario provides a good explanation for the chlorinity data collected aboard ship (Eberli, Swart, Malone, et al., 1997) as well as for the data presented in this paper.