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W

Water level (maximum)

Difference between the elevation of the highest local water mark and the elevation of the sea level at the time of the tsunami. This is different from maximum runup because the water mark is often not observed at the inundation line, but maybe halfway up the side of a building or on a tree trunk. Also referred to as inundation or tsunami height.


Wave crest

1. The highest part of a wave.

2. That part of the wave above still water level.


Wave trough

The lowest part of a wave.


WDS and NCEI

of the ICSU in its 29th Session in 2008. WDS builds on the 50-year legacy of the ICSU World Data Centre (WDC) system. WDS promotes disciplinary and multidisciplinary applications with a broader disciplinary and geographic base build on the potential offered by advanced interconnections between data management components. At the moment, includes 49 Member organizations.

baseline information for research in many disciplines.