Answered By: Jeremy Darrington
Last Updated: May 19, 2017     Views: 24

Daily Sunlight (1979-2011)

  • North America Land Data Assimilation System (NLDAS) on CDC Wonder website
  • Available by state or region as well as for the United States as a whole.
  • Calculated as KJ/m² (Kilojoule/square meter)

FAQ Actions

Contact Us

Chat with a Librarian

Chat requires JavaScript.

Text a Librarian

Text (609) 277-3245 to get live help on your mobile phone (available the same hours as the Chat service)

Email a Librarian

You can email your research questions to refdesk@princeton.edu or you can request an individual appointment with a subject specialist.

Call a Librarian

Call (609) 258-5964 to speak to a reference librarian during most open hours of the Libraries.