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Forest Vegetation Simulator

FVS Bulletins 2015 and Suppose Release Notes

FVS Bulletins. The following are FVS bulletins posted in the current calendar year 2015. Suppose Release Notes follow the FVS Bulletins table. Bulletins from previous years are also available. These bulletins notify users of program updates, problems, or other information related to the Forest Vegetation Simulator, the Fire and Fuels Extensions, and the Insect and Pathogen models. Click the filename to download or to open the bulletin. The files are small, simple ASCII text files, 2 to 27 KB in size.

  • Post-1995 Bulletins - Select a year in the box below.
  • Pre-1995 Bulletins - Bulletins 1 to 300 are not available online. If you wish to obtain a bulletin(s) prior to Bulletin 301, contact our staff.
Description Filename

Bulletin: 735
Model(s): FVS
Variant(s): All
Topic(s): A new keyword to exclude specific species or species groups from scheduled harvesting activities is available, sprouting estimates were improved in all variants except KT, the Western Root Disease model was updated to function with the FVS Stop and Restart system, an error was corrected in crown width calculations for some non-Forest Service users, in the new ORGANON-based variants problems with crown ratio and height dubbing were corrected, tree-record tripling was added, and adjustments were made to mortality calculations, Behr’s 32-foot form class was made available to Region 6, a problem in displaying fine coarse woody debris with the Stand Visualization System was corrected and updates were made to the FVS-WRENSS water yield post-processor.


Bulletin: 734
Model(s): FVS
Variant(s): All
Topic(s): Two new FVS variants based on the ORGANON model have been developed, a new fire-caused mortality multiplier keyword is available, and updated individual tree mortality equations have been implemented in the Pacific Northwest Coast and Westside Cascades variants.


Bulletin: 733
Model(s): FVS
Variant(s): All
Topic(s): The volume equations in Western variants were reconciled with the volume equations used in the Cruise Processing software, Behre’s 16 foot log volume equations were implemented in Region 6, the BLM locations Roseburg, Medford, and Coos Bay were added to the CA variant, the BLM location Lakeview was changed to Coos Bay in the NC variant, output database tables were added to the Western Root Disease extension, corrections were made to the canopy fuels calculations and crown width calculations, output table headers were clarified in the Cover extension, and the ability to use time-series precipitation input was added to the FVS-WRENSS water yield post-processor.


Bulletin: 732
Model(s): FVS
Variant(s): All
Topic(s): An emergency correction was made to the FVS_COMPUTE output database table.


Bulletin: 731
Model(s): FVS
Variant(s): All

  1. New Point Group keyword is available.
  2. Upgrades were made to the database extension CaseID field.
  3. Shortleaf pine sprouting was added and sprout estimates were improved in the SN variant.
  4. An error in the PV Code / PV Reference code processing was corrected in the BM variant.
  5. FFE CarbCalc keyword and other FFE updates.
  6. FFE Shrub estimates for some hardwood cover types were corrected in the AK, CA, EC, PN, WC and WS variants.
  7. FFE default initial fuel loadings and herb and shrub estimates were adjusted for some hardwood cover types in the IE and EM variants.
  8. The WRENSS handbook snow redistribution procedure was updated in the FVS-WRENSS water yield post-processor.

Suppose Release Notes

Suppose Release Notes describe problem fixes with previous versions and the additions of new features to Suppose. The files are small, simple ASCII text files. The file name format "rn115.txt" denotes "release notes for Suppose version 1.15". The ".txt" file extension denotes the ASCII text file format.

File Size File Date
rn206.txt 605 bytes 09-25-2015
rn205.txt 1 KB 10-01-2015
rn204.txt 3 KB 12-24-2014
rn203.txt 3 KB 11-20-2013
rn202.txt 22 KB 01-15-2013
rn201.txt 3 KB 08-12-2009
rn120.txt 3 KB 05-16-2007
rn119.txt 4 KB 07-10-2006
rn118.txt 7 KB 06-14-2006
rn117.txt 992 bytes 11-09-2004
rn116.txt 6 KB 05-21-2004
rn115.txt 5 KB 09-16-2002
rn114.txt 4 KB 04-30-2002
rn113.txt 3 KB 12-27-2000
rn112.txt 4 KB 04-25-2000
rn111.txt 4 KB 01-13-2000
rn110.txt 3 KB 02-22-1999
rn109.txt 4 KB 10-14-1998
rn108.txt 7 KB 09-18-1998
rn107.txt 5 KB 09-18-1998
rn106.txt 3 KB 09-18-1998
rn105.txt 3 KB 09-18-1998
rn104.txt 2 KB 09-18-1998

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Last modified: January 07, 2015