DOWNLOAD ENTIRE RECORD OF QUALITY CONTROLLED CORE DATA AND ASSOCIATED METADATA HERE.

Please cite associated DOI (10.26025/1912/29631) 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.