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Contributing Paleo Data

Contributing Data

NOAA permanently archives contributions to the World Data Service for Paleoclimatology (WDS-Paleo). 

Data contributions consist of:

  • Metadata
  • One or more data tables including a chronology table (if applicable)
  • Raw data and reconstructions 

Reasons to Contribute

  • Satisfy obligations to publishers and funding agencies
  • Make data freely and permanently available without restrictions
  • Allow colleagues and the general public to discover and use your data 
  • Potential increase in citation rate of your associated articles

Data Synthesis Projects

WDS-Paleo requests that leaders of synthesis projects have their designated liaison contact WDS-Paleo staff ( early in the research and development process to discuss appropriate data formats and the use of standard controlled vocabularies for defining terms. Use the synthesis template to provide metadata and data from the records used in a synthesis project. The final product data from a synthesis project can be submitted with a standard template.

Please contact us at 303-497-6280 or for any questions or further assistance.

Step 1

Use the data contribution template that best fits your project to prepare your metadata and data. When submitting stratigraphic data, use the first column to document depth and the second for assigned age. Be sure to identify the data attributes in each column with a label in the top row. 

Step 2

Please send completed contribution templates as email attachments to If you do not receive confirmation of receipt of your contribution within three (3) business days, please phone +1 303-497-6280. Please contact us at either the phone number or email address above for any questions or further assistance.

Step 3

You will receive a URL link to your data when they are online. Please review your contribution and contact us with any corrections or additions.

Tree-Ring Data

Contributions to the International Tree-Ring Data Bank (ITRDB) should be made in decadal “Tucson” format, and files should be emailed to Please also complete the metadata portion of the text or Excel contribution template and include it with your contribution.

Fire History Data

Contributions to the International Multiproxy Paleofire Database (IMPD) should be made via the Fire History tree-based (FHX) or charcoal template files below, and completed files should be emailed to

Chronology refers to the ages assigned to a stratigraphic section or other paleoclimatology sample, and chronology tables often consist of these ages combined with measured depths. Please provide chronology tables and the preferred age assignments for all samples in your data contribution.

When providing a chronology table, please provide sufficient information so the ages can be recalibrated, the uncertainty of the age determinations can be assessed, and the new age models can be constructed.

Depth should be listed in the first column, and where appropriate, depth ranges should be provided in adjacent columns. Please also provide raw and calibrated ages as well as raw and calibrated uncertainty. To reduce conversion errors, use original units such as “years” or “thousands of years.”

For other age measurements, such as Lead-210 and Uranium series, journal articles provide examples of commonly used table structures and variables to include. Ages determined from multiple sources are often combined in a single table, for example, a table can combine ages such as a core-top age estimate of zero, a stratigraphic correlation tie-point, and radiocarbon ages on subsequent rows in a single table.