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NASA's Earth Science Data and Information Systems (ESDIS) Standards Office (ESO) conducts reviews of proposed standards, practices, and technical information relevant to the ESDIS mission. Documents are reviewed as part of the  ESDIS Project's standards process. Approved documents are published and listed on the  Standards Requirements and References  page.

ESO is conducting a review of NASA Earth Science Data Preservation Content Specification 423-SPEC-001, Revision C. 

This document defines the contents of data, metadata and associated documentation to be preserved by NASA’s Earth Science Division (ESD).  The purpose of the document is to identify all the content items that need to be preserved to ensure their availability to support future investigations in long-term scientific research. The focus of this document is on the contents (i.e., “what” and “why”) and not on the implementation or representation (i.e., “how”) of the content items.  Guidelines for implementation (i.e., “how”) are provided in a separate companion document which is also under review.

Review in Progress - this review is currently being processed and is not open to new comments


Please also consider reviewing ESDS-RFC-042 Preservation Content Implementation Guidance.

Quick Start for Reviewers

ESDIS uses the Jama online document review system to collect community comments on proposed standards, practices and technical information submitted to ESO for review.  Offline reviews, where you download the document and review questions, then respond via email, are also accepted. Quick instructions for each are below.

Preferred Method: Use Jama
  1. Request Jama access to these documents by contacting the ESO at Please include your Earthdata login username if you have one.

  2. Read and provide comments about the document via Jama here:
  3. For more details on using Jama, see the information at the bottom of this page.
  4. All review comments are due by June 4, 2021 at 11 p.m.
Alternate Method: Respond via email
  1. Download the document:
  2. Read the document and provide additional feedback by answering the review questions:
  3. Send your feedback to the ESO at
  4. All review comments are due by June 4, 2021 at 11 p.m.

Review Introduction

The role of the ESDIS Standards Office (ESO) is to conduct a review of this document by soliciting comments from a cross section of the Earth Science community.

Reviewers are invited to read the document and answer the questions provided on the review web page. The ESO recognizes that not all reviewers will be familiar with all of the content of the document. Reviewers are welcome to review those parts of the document that they have experience with.  You only need to answer questions applicable to you.  Additional comments are welcome.

This document is intended primarily for data producers and data distributors, however data users may have insights and opinions about the content of this document as well. 

There is a new companion document, also under current public review, ESDS-RFC-042 Preservation Content Implementation Guidance. Please consider reading (and reviewing) that document for further context and guidance.

Review Questions

  • What is your role? Select one or more of:  data producer, data distributor, other
  • What type(s) of data do you produce and/or distribute? (Refer to Table 1 in this document and/or to for possible categories and levels)
  • Are you already familiar with any of the previous versions of this document?
  • For the Content Specifications sections that are relevant to the data you produce, distribute, and/or use:
    • Are the item descriptions complete and understandable? 
    • Do the item rationales convey the importance of preserving the items they cover?
    • Is there enough information in this section to help you in your data preservation activity?
  • Is there anything else that you have learned about preservation content that could supplement or improve this document?
  • The appendices contain mappings from the PCS to ISO 19165-2 and from ISO 19165-2 to PCS. If you are familiar with ISO 19165-2, please provide any feedback about the tables you think will be helpful.

 You may send any questions about the review to the ESO staff at

Detailed instructions for Jama reviewers:

The benefit of using the Jama system is that you can easily comment on specific portions of the document and can see comments provided by others.

Review comments may be submitted via the Earthdata Jama document review system. If you already have access to the NASA Earthdata Jama system, please contact ESO at and let us know your Earthdata Login username so we can add to you the list of reviewers.

Once you are registered to provide a review, you will receive email from the ESO Team with links to the documents under review. When you get the email, please follow the instructions to gain access to the documents and to begin the review.

In order to log in to the Jama system (i.e. to follow any of the Jama review links) you must have an Earthdata Login account with access to Jama. Use your Earthdata Login username and password to log in to Jama.  Earthdata Login username and password recovery can be done at

If you do not already have a Jama account but wish to use the Jama system, you can request one at the Earthdata Service Desk or email the ESO staff at

Jama Resources

NOTE: Information on this page is subject to change.

Thank you!