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NOAA National Centers for Environmental Information have more than 3,000 tsunami marigram
(tide gauge) records in both image and paper format. The majority of these tsunami
marigram records were scanned to high-resolution digital tiff images during the NOAA
Climate Data Modernization Program (CDMP). There still remain shelves full of deteriorating
paper records that are in need of rescue reformatting to scanned images before they
are lost. As a follow-up to a successful 2016 BEDI project resulting in the archival
and discovery of data held on marigrams during four large tsunamis (1946, 1952, 1960,
1964), marigrams from five additional tsunami events in 1854, 1883, 1896, 1933, and
1968 have been digitized. These additional five tsunami events were generated in both
the Pacific and Indian Oceans and are rarely cited in research due to lack of data
access. The five tsunami events proposed here for reformat, archive, and discovery
in 2017 reside only on these same paper marigram records. Each of these datasets are
of great importance as very little digital data exists from tsunamis that occurred
during this time period, particularly those prior to the turn of the 20th Century.
These events are not only historically important but with new research into tsunami
probabilities, are statistically important as well. Similar to seismic hazard analyses,
the tsunami community is now focused on tsunami recurrence rates through probabilistic
tsunami hazard analysis to support land-use and construction decision-making. As a
result, measurements of these tsunamis are not only expected to provide researchers
with important information linking earthquake rupture to tsunami generation and propagation
characteristics, but will add a significant number of tsunami data points to recurrence
rates calculations. All data reformatted as part of this project will be brought into
compliance with NOAA Data Directives and meet the requirements for Data Management,
Discoverability, Accessibility, Documentation, Readability, and Data Preservation
and Stewardship as per the Big Earth Data Initiative (BEDI). BEDI is designed to promote
interoperability of Earth observation data across Federal agencies, systems and platforms
through the improvement of data management practices and increased discoverability,
accessibility, and usability of data collections. |