This website and services will have intermittent access from 6 PM (CDT) on Thursday, October 17, 2019 to 10 PM (CDT) on Thursday, October 17, 2019. We apologize for any inconvenience and appreciate your patience.
Current plans are to develop products annually based on the following fire seasons:
|Overview Area||Season||Region||Date Range|
Northern Great Basin
|Feb 1 - May 15|
Northern Great Basin
|Mar 1 - Jun 30|
|Fall||Southern||Jul 1 - Sep 30|
The Provisional MoD-FIS seasonally modulates fuel model data in the Great Basin and Southwest regions. MoD-FIS incorporates seasonal variability of herbaceous cover. These fine fuel measurements are then used to capture changes to fire behavior fuel models based on the current fire season herbaceous production.
Seasonally modified fuel model data were developed for the Great Basin and Southwest regions based on the Index NDVI. Ten years of NDVI from Web-enabled Landsat Data (WELD) was analyzed to determine the average and range of vegetation greenness values for each pixel across each region. These values were correlated with measures of LF herbaceous cover to determine abundance of fine fuels. A process was then developed to create current year herbaceous cover using pre-fire season NDVI imagery, capturing the green-up of herbaceous vegetation. The resultant updated layers from this process are Provisional MoD-FIS Existing Vegetation Cover and Height (PM_EVC and PM_EVH). Using the current year herbaceous cover, LF Total Fuel Change Tool can make fire behavior fuel model changes that reflect the current fire season herbaceous cover and resultant fuel availability. Modeling exercises were used to evaluate the seasonal fuel model data. Local fuels experts provided review of the process and resultant data. The final layer from this process is Provisional MoD-FIS Fire Behavior Fuel Model 40 (PM_FBFM40).
Mosaic products available, refer to the Provisional MoD-FIS data availability.
The comma separated value (CSV) file used for the raster attribute table is included in the LF product download in database file (DBF) format.
(Why is the CSV important?)