Segments and Gaps in Tide Gauge Records

The word “segment” in sea level analyses has been differently used. Mörner [1-3] used it to denote segments of sea level changes that had to be characterized individually-in contrast to linear trends ignoring the observational records. Because tide gauges in Mumbai and in Visakhapatnam located on opposed sites of the Deccan Plateau record the same four-parted segments, I interpreted these segments as records of eustatic changes (Figure 1). Parker [4,5], on the other hand, used segmentation to denote interruptions and gaps in the tide-gauge recording.