Forest Inventory &
U.S. Forest Service
1601 North Kent Street,
Arlington, VA 22209
Click here for the latest user alerts.
April 11, 2014
FIA, in conjunction with the Forest Service Chief Information Office, will be implementing changes to the FIADB structure and data the third and fourth weeks of April. During that time, FIADB and the online tools will remain available; however, the data will consist of a mix of version 5.1 and 6.0 data. The most visible change is in the interpretation of the definition of reserved status. All annual data have been reanalyzed in accordance with this interpretation and some previously published values have been changed. Change estimates have been recomputed to account for any modifications. For more details please consult the FIADB User's Guide (http://www.fia.fs.fed.us/library/database-documentation/).
For more information contact any of the following:
We expect to correct this problem by late April 2014. Thank you for your patience. Please check here for further information and updates.
March 11, 2014
We have discovered an issue in our calculation of sampling error estimates. Currently, sampling error estimates in EVALIDator are only valid when “trend analysis” is selected as the row variable. Population totals and ratio estimates from EVALIDator are valid and are not affected by this error. Estimates from FIDO are not affected.
We expect to correct this problem by late April 2014.
Thank you for your patience. Please check here for further information and updates.
FIADB 5.1.6 - has been released. You may notice changes in FIADB tables, FIDO, EVALIDator and the DataMart. Some new tables may not contain data until the 2012 field data are processed.
The National Woodland Owner Survey table
maker allows users to create custom tables based on data
collected during the years 2002-2006.
The National version of this tool allows
users to generate Timber Products Output tables for the entire
The Southern Research Station version allows users to focus
more specifically on those states in the southern United States.
The Southern On-Line Estimator, developed and maintained by the National Council for Air and Stream Improvement, Inc. (NCASI), allows users to produce tables, graphs, maps, and reports from the annual FIADB data.
A pre-processor tool, developed and maintained by the USFS Forest Management Service Center, converts FIA database files into Forest Vegetation Simulator (FVS) database files.
The Carbon On-Line Estimator, developed and maintained by the National Council for Air and Stream Improvement, Inc. (NCASI), allows users to examine carbon characteristics of any area within the continental United States.