Disturbance Product Alerts |
posted 2022-08-31 | [Disturbance] LF 2016 Remap (LF Remap) Annual Disturbance products for the years 2015 and 2016 attribute tables were updated ... | Reason for alert: LF 2016 Remap (LF Remap) Annual Disturbance products for the years 2015 and 2016 attribute tables were updated and the products have been re-released for some extents.
Updated product(s) or information: Annual Disturbance 2015 and 2016 were updated on 08/31/2022. Extents impacted include the Conterminous United States (CONUS) and the Insular Areas (IA) including Puerto Rico and the U.S. Virgin Islands (PRVI), The Federated States of Micronesia, Guam and the Commonwealth of the Northern Mariana Islands, and Palau.
Problem or issue description: LF Remap Annual Disturbance 2015 and 2016 products were updated to correct a mis-color within the RGB columns of the attribute table (both the Raster Attribute Table (RAT) joined to the TIF and the stand-alone csv). Previously the value 1101 Unknown Low Severity was color coded red, when it should have been gray. This mis-color has now been corrected. Note that the 1101 Unknown Low Severity values were assigned correctly, this re-release is only a color correction.
Users are advised to download the updated versions of the LF Remap Annual Disturbance 2015/2016 products for both CONUS and IA and/or download the corrected stand-alone csv. We encourage users to delete any local copies of these products that were downloaded prior to 08/31/2022. We regret any inconvenience this may cause.
2015 Disturbance CSV
2016 Disturbance CSV | |
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posted 2022-06-08 | [Disturbance] LF 2020 Historical Disturbance (HDist) for the Conterminous United States (CONUS) data was updated with new attribute tables. |
Reason for alert: LF 2020 Historical Disturbance (HDist) for the Conterminous United States (CONUS) data was updated with new attribute tables.
Updated product(s) or information: LF 2020 Historical Disturbance (HDist) product attribute tables were updated on 06/08/2022. This includes both the CSV and the joined DBF Raster Attribute Table (RAT). The impact is limited to rows within the CSV or DBF RAT relevant to the FDist 700 values.
Problem or issue description: The LF 2020 CONUS HDist product was updated to incorporate corrected attribute tables. Previously, rows relevant to the column header Fdist (values 700+) had duplicate values. These rows have been corrected. Users are advised to download the updated versions of the LF 2020 HDist CONUS product and delete any local copies of this product that were downloaded prior to 06/08/2022. We regret any inconvenience this may cause. | |
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posted 2021-09-07 | [Disturbance] LF 2016 Remap updated attribute tables for Alaska |
Reason for alert: LF 2016 Remap Annual Disturbance data was updated with new attribute tables for 2015 (Dist15) and 2016 (Dist16).
Updated product(s) or information: LF 2016 Remap (LF 2.0.0) Annual Disturbance 2015 and 2016 product attribute tables (CSV and DBF) were updated on 09/03/2021. The impact is limited to rows within the CSV or DBF relevant to LF 2016 Remap Alaska (AK), and therefore AK data downloads.
Problem or issue description: LF 2016 Remap Annual Disturbance 2015 and 2016 products were updated to incorporate corrected attribute tables. Previously, rows relevant to AK (VALUES 910 to 1089) had misleading information. These rows have been corrected to state when default low severity was used. Also, some excess VALUES were removed and descriptions were updated to provide further clarity.
Users are advised to download the updated versions of the Annual Disturbance 2015 and 2016 products, especially for AK full extent mosaics or other downloads, and delete any local copies of these products that were downloaded prior to 09/03/2021. We regret any inconvenience this may cause. | |
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posted 2019-06-25 | [Fuel|Disturbance] Updates to LF Remap Fuel products for Northwest and Southwest GeoAreas... |
Updates to LANDFIRE (LF) Remap Fuel products for Northwest and Southwest GeoAreas
Reason for alert: Update of LF Remap fuel products for the Northwest (NW) and Southwest (SW) GeoAreas
Updated product (s) or information: Four LF Remap (LF 2.0.0) products for the NW and SW GeoAreas were updated 6/25/2019 with corrected input layers. The updated products are:
Fuel Vegetation Type (FVT)
Fuel Vegetation Cover (FVC)
Fuel Vegetation Height (FVH)
Fuel Disturbance (FDist)
Problem or issue description: Users are advised to download the updated versions of the four fuel products listed above and delete local copies of these products that were downloaded prior to Jun 25, 2019. We regret any inconvenience this may cause.
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posted 2019-06-17 | [Fuel|Disturbance] Change to LF Remap fuels for disturbed areas represents effective year 2019... |
Change to LF Remap fuels for disturbed areas represents effective year 2019.
Reason for alert: Users of existing LANDFIRE (LF) fuel products need to be aware of a change in the products being released as part of Remap.
LF version(s): LF Remap (LF 2.0.0)
Updated product(s) or information: Areas mapped as disturbed by LF have been adjusted to account for vegetation conditions relative to Time Since Disturbance (TSD) for the 2019 effective year (accounting for disturbances between 2009 - 2016). This adjustment has been made to the following LF Remap products:
13 Anderson Fire Behavior Fuel Models (FBFM13)
40 Scott and Burgan Fire Behavior Fuel Models (FBFM40)
Forest Canopy Cover (CC)
Forest Canopy Height (CH)
Forest Canopy Bulk Density (CBD)
Forest Canopy Base Height (CBH)
Fuel Vegetation Type (FVT)
Fuel Vegetation Cover (FVC)
Fuel Vegetation Height (FVH)
Fuel Disturbance (FDist)
Historical Disturbance (HDist)
Problem or issue description: The significant refinement for the LF Remap products mentioned above, is that they represent "capable" fuels, meaning the TSD assignments have been calculated using an effective year. For example, LF Remap fuels are now assigned for the 2019 effective year. The new process considers all incorporated disturbances in LF Remap and provides an adjustment factor to account for the TSD, making the data "capable" of representing an effective year. These capable data account for increase or decrease in fuel attributes in disturbed areas to the effective year (2019 in this case).
Given that LF Remap is circa 2016 data, it is important to note that no new disturbances are added for 2017 through 2018. Although these new disturbance data are not available yet, they are being cataloged for future use in an Update. Disturbances older than 10 years in 2019 follow the existing LF protocol for removal from Fuel Disturbance and are represented by more recent non-disturbed LF Remap vegetation. For areas that have not been disturbed, fuel is based on LF Remap vegetation, which is the newest fuel vegetation available.
The objective for this change was to improve, clarify, and simplify fuel transitions and Fuel attribute change following disturbances. By synchronizing TSDs, users may not need to do much, if any adjustments, to the vegetation and fuel conditions to represent contemporary conditions. In addition, these refinements will improve performance of fire behavior modeling when using the data operationally. Starting with the Southwest GeoArea release (which includes Northwest GeoArea fuel products), LF Remap fuels will be delivered as capable fuels for the 2019 effective year.
The LF team stands ready to assist with questions and concerns regarding LF products. Contact us at the LF helpdesk.
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posted 2016-10-19 | [Disturbance] NE Fuel Disturbance 2010 (FDIST10) was updated October 19, 2016 ... |
Subject: NE Fuel Disturbance 2010 (FDIST10) was updated due to a processing error.
Users are advised to delete local copies of this layer downloaded prior to October 19, 2016 and download the updated version. | |
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posted 2015-04-09 | [Vegetation|Fuel|Disturbance] LANDFIRE 2012 (LF_1.3.0) layers for the Northwest (NW) GeoArea were updated |
LANDFIRE 2012 (LF_1.3.0) layers for the Northwest (NW) GeoArea were updated 4/9/2015 with corrected input layers. Updated layers include:
Existing Vegetation Type (EVT)
Existing Vegetation Height (EVH)
Existing Vegetation Cover (EVC)
Canopy Bulk Density (CBD)
Canopy Base Height (CBH)
Canopy Cover (CC)
Canopy Height (CH)
Fire Behavior Fuel Models 13/40 (FBFM13/40)
Disturbance 2012 (D2012)
Fuel Disturbance 2012 (FDIST2012)
Vegetation Disturbance 2012 (VDIST2012)
Vegetation Transition Magnitude (VTM2012)
Users are advised to download the updated versions and delete local copies of these layers that were downloaded prior to
April 8, 2015. We regret any inconvenience this may cause.
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posted 2012-06-05 | LANDFIRE 2008 (LF 1.1.0) Fuel
Disturbance 2008 (FDIST2008) for Hawaii, zone 79, was updated 6/5/12...
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LANDFIRE 2008 (LF_1.1.0) Fuel Disturbance 2008
(FDIST2008) for Hawaii, zone 79, was updated 6/5/12. FDIST2008 was reclassified in
certain areas of zone 79.
Users are advised to delete local copies of these layers downloaded prior to June 5, 2012
and download the updated versions. We regret any inconvenience this may cause. | |
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posted 2012-05-01 | LANDFIRE 2008 (LF 1.1.0)
disturbance layers for zones 37, 46, 48, 54, 98, and 99 are updated
5/1/12... |
LANDFIRE 2008 (LF_1.1.0) disturbance layers for zones 37, 46,
48, 54, 98, and 99 are updated 5/1/12. The disturbance layers were updated due to corrected
input layers. Updated layers are Disturbance 1999 -2008 (DISTYEAR), Fuel Disturbance 2008 (FDIST2008), and Vegetation
Disturbance 2008 (VDIST2008).
Users are advised to delete local copies of these layers downloaded prior to May 1,
2012 and download the updated versions. We regret any inconvenience this may cause. | |
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posted 2012-02-01 | Some disturbance layers for
zones 10 and 19 are updated as of 1/30/12... |
Some disturbance layers for zones 10 and 19 are
updated as of 1/30/12. An extraneous landscape change event polygon was included in the original processing. The
extraneous polygon was removed and the following 3 layers are updated: Disturbance 2000 (DIST2000), Fuel Disturbance 2008
(FDIST2008), and Vegetation Disturbance 2008 (VDIST2008).
Users are advised to delete local copies of these disturbance layers downloaded prior to 1/30/12 and download the updated
versions. We regret any inconvenience this may cause. | |
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posted 2012-02-01 | Some disturbance layers for zone
41 are updated as of 1/30/12... |
Some disturbance layers for zone 41 are updated
as of 1/30/12. A windstorm landscape change event was excluded in the original processing. The windstorm event was
added to the processing inputs and the following 3 layers are updated: Disturbance 1999 (DIST1999), Fuel Disturbance 2008
(FDIST2008), and Vegetation Disturbance 2008 (VDIST2008).
Users are advised to delete local copies of these disturbance layers downloaded prior to 1/30/12 and download the updated
versions. We regret any inconvenience this may cause.
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