mareogram
(ˈmæriːəʊgræm)
[f. L. mare sea + -o + -gram.]
A graphical record of variations in sea level.
| 1904 Publ. Earthquake Investigation Comm. Foreign Lang. (Japan) xviii. 24 The following table..gives the mean monthly values of the distance between the sea surface and the datum line in the mareogram at each of the two places. 1931 C. Davison Japanese Earthquake of 1923 xii. 104 The mareogram at Toba is reproduced in Fig. 25. Here, the first movement occurred at 0.57 p.m., the maximum amplitude (of 4 ft. 1½ in.) being reached with the fifth wave at 3.37 p.m. 1949 Gutenberg & Richter Seismicity of Earth 95/1 Tsunamis are frequently recorded on mareograms written by tide gages. |
Hence mareoˈgraphic a.
| 1939 Jap. Jrnl. Astron. & Geophysics XVII. 121 The tunamis that were associated with earthquakes..left conspicuous records on some of our mareographic stations. 1956 Jrnl. Earth Sci. Nagoya Univ. IV. 5 Some of these after-shocks were strong,..but no tunamis were observed, even on the mareographic records. |