Skip to content

Historical Data

NEW: DOWNLOAD ENTIRE RECORD OF QUALITY CONTROLLED CORE DATA AND ASSOCIATED METADATA HERE. Please cite associated DOI (10.26025/1912/27650) when using this data for publication.


Below is a heatmap of available historical data. Clicking yields additional content below the table.

  • A given Instrument × Year cell shows the volume of data available for that pairing. Clicking on a cell shows the data distribution for that  given instrument and year below the table. A data download link will also appear.
  • Cells are color-coded by row. Cells with a darker color for a given row (instrument) indicates that relatively more data was collected for that instrument compared to other years.
  • Cells at the end (right or bottom) are summaries and will yield a compilation for the instrument or year. The download link will be a zip file.
  • To view instrument metadata, click on the instrument-name row-header.
Core Data

User Data
Voltage Data