Station 21D20 - Adrift buoy from 21420
Available historical data for station 21D20 include:
Other Available Historical Data
Long-term archive of recovered DART® data are available at the NOAA’s National Centers for Environmental Information (NCEI), https://www.ngdc.noaa.gov/hazard/dart/deployments/21d20/
Some data files have been compressed with the GNU gzip program.