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Distributed Data (for ADRCs)

This document outlines how to access distributed data through the ADRC portal. The data itself is stored in Flywheel projects for your center.

Prerequisites​

To follow these instructions, you will need:

  • An active ADRC Portal user account
  • Portal permissions that allow you to view the relevant content for your ADRC
  • A browser/network environment that permits file downloads

If you do not see cards for distributed data (such as ADGC & NIAGADS and/or NCRAD) in the portal, your account may not have the required permissions. If access is needed, contact NACC Help (nacchelp@uw.edu) to request access.

Key concepts (quick reference)​

  • ADRC Portal: The primary place ADRCs download view and download their center's data.
  • Dashboard (in the portal): Center-specific landing pages where you can view, audit, and download your center's data.
  • Center-specific access: You should only see files available to your ADRC.
  • File metadata: Fields such as Name, Size, Type, and Last Updated help confirm you’re downloading the expected and most recent file.

Accessing Distributed Data Through the ADRC Portal​

  1. Log into the ADRC Portal.

Alt text: Image of the ADRC Portal Landing Page

  1. Click on the "View, Audit, and Access Participant Data" button. You can also access this dashboard through the sidebar.

Alt text: Image of ADRC Portal Landing page with the "View, Audit, and Access Participant Data" button outlined

  1. Scroll down to the "View & Access Data" category and select your data type of choice, e.g. NIAGADS or NCRAD data. You can also access these dashboards through the sidebar.

Alt text: Image of the ADRC Portal "View, Audit, and Access Participant Data" landing page with the ADGC & NIAGADS and "NCRAD" cards outlined

  1. This will bring you to the corresponding dashboards - see the following child pages for dashboard-specific download guides.

  2. Each dashboard provides a list of files available for download.

    • Locate the file you need in this list. Use can use the provided search bar to narrow results down.
    • File details to confirm it’s the correct release:
      • Name (matches the expected dataset/release)
      • Last Updated (most recent posting date/time)
      • Type (commonly listed as tabular data/CSV)

Troubleshooting/Support​

Contact NACC support (nacchelp@uw.edu) if you encounter any of the following:

  • You can login but do not see the relevant dashboards in the left navigation.

  • You can open a dashboard but no files are listed.

  • A file is listed but will not download.

  • You believe your center's file is missing, outdated, or incorrect.

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