| Summary: | The U.S. National Oceanic and Atmospheric Administration (NOAA) National Centers for Environmental Information (NCEI) is the archive for ocean bottom pressure observations from the U.S. Deep-ocean Assessment and Reporting of Tsunamis (DART ) network and water level data from high-resolution, U.S. coastal tide gauges supporting the U.S. Tsunami Program. Currently, the archive contains quality-controlled (QC) time series from over 370 DART deployments, and high-resolution, quality-controlled time series from about 300 coastal tide gauge stations operated by NOAA. Observations on the U.S. DART network began in 1998, and the pre-DART ocean bottom pressure measurements in the archive date back to 1983. High-resolution (1-minute sampling) coastal tide gauge observations began in 2008. Currently, the length of the records from every station is more than 10 years. Over time, quality control, data processing, and presentation methods have improved. DART and coastal tide gauges cover vast regions from the Arctic Ocean in the North, to American Samoa in the South Pacific, from Guam in the Eastern Pacific through the Hawaiian Islands, U.S. West Coast, U.S. Gulf Coast, Caribbean islands, to the U.S. East Coast. Each region experiences site-specific data quality disturbances, tidal regimes, and responses to extreme events. In our presentation, we provide a detailed description of our methods for data quality control, tidal analysis, and basic statistics for QC assessment, characterizing specific differences, for every one of the regions.
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