When product files have to be changed, the ORNL DAAC sends an e-mail message to those who ordered the old (incorrect)products to inform them of the nature of the change and how to order the revised product.
In addition, the DAAC makes sure that future users of the product know that it has been revised. Changes are described in the documentation, and the DAAC posts the changes on this Web page (see below).
Users are also an important part of ensuring the quality of the ORNL DAAC's products. Should you find questionable values in products you've ordered from the ORNL DAAC, please contact our User Services Office.
| 2005-May-02 | - Nitrogen Deposition Data Set Revised |
| 2004-Sep-22 | - Revised -- NPP Gridded Estimates |
| 2004-Jun-17 | - Revised -- NPP EMDI Data |
| 2004-May-06 | - Revised -- BOREAS Upper-Air Data |
| 2004-Apr-20 | - BOREAS TE09 PAR and Nitrogen Data Revised |
| 2003-Dec-05 | - BOREAS SSA-YJP Tower Flux Data Revised |
| 2003-Feb-07 | - Gridded NPP Estimates Revised |
| 2002-Jan-08 | - VEMAP 1 Soils Data Set Revised |
| 2001-Mar-16 | - VEMAP 2 Monthly Climate Data Set Revised |
| 2001-Mar-16 | - VEMAP 2 Monthly Climate Scenarios Data Set Revised |