![]() Relationships between FFMC and laboratory ignitions, and moisture content for cypress and shrub litter. (2004)Įstimated fireline intensity and difficulty of suppression for maritime pine stands in Portugal using experimental fires and wildfires, simulated fire spread rates.Ĭumulative FWI frequency distributions, sub-index correlations with number of fires and burned areas from fire reports, relationships between FFMC and sampled fine fuel moisture content, DMC and sampled duff moisture content. (1989) and references thereinĬumulative FWI frequency distributions, number of fires and burnt area across fire danger classes, relationships between FWI values, number of fires and area burnt.Ĭumulative FWI frequency distributions, number of fires and burnt area across fire danger classes, logistic regression between FWI indices and days with fire.Ĭumulative FWI frequency distributions, relationships between FFMC and moisture content of dead Eucalyptus leaves, ISI and spread rate in shrub vegetation, DC and live moisture content of shrubs, DC and total annual June-Sept area burned.įujioka et al. RegionĮxperimental fire behavior examples for different FWI values in a reference Jack Pine fuel type in relation to fire intensity and suppression difficulty.Ĭumulative FWI frequency distributions, relationships between FWI, number of fires and burned area from reports, expert assessment. Note that the fire danger classes in each are specific to the type of input weather data, for example from weather stations or gridded fields from numerical models. The studies below are examples of different approaches to determining fire danger classes for the FWI or different sub-indices. ![]() The FWI System requires calibration to the local fire environment. The latter also includes historical FWI calculations based on the ERA-Interim Reanalysis, under 'Data Access'. Jointly produced with the European Centre for Medium Range Weather Forecasting. Global Early Warning System for Wildland Fires Global FWI forecasts are available from the GOFC-GOLD This system can be used for interactive mapping and plotting. After downloading, the data may be easily plotted and viewed using the Panoply Data Viewer.Īt Columbia University’s International Research Institute for Climate and Society. GFWED datasets are in netCDF (NC) format. The underlying weather data used for the calculations are also included, along with ancillary information such as snow cover used to start and stop the calculations. The example shown here is over the southeast US with Aqua/Terra MODIS active fires. The Fine Fuel Moisture Code is a good indicator of fire starts. A wget example to download a single file to the current directory is: GFWED data are distributed in NetCDF format from the NASA Center for Climate Simulation Dataportal at the URL:ĭownloads can be automated using the "wget" and "curl" tools. same retrieval but without TRMM instrumentsįinal research version with monthly rain-gauge correction. V1.3 forthcomingĪfter 2014, this is 'pseudo-TRMM', i.e. Primarily gauges from WMO-level synoptic network NCEP CPC gauge-based analysis of global precipitation Gauge-corrected precipitation used by aerosol wet removal and land surface schemes MERRA-2 bias-corrected precipitation (PRECTOTCORR) Precip estimate from model w/ assimilation NRT 7-day forecasts, analysis versions using GEOS-5, IMERG and CPC precipitation Each of the eight versions uses a different precipitation estimate, ranging from the MERRA-2 estimates, to rain-gauge only estimates to three different satellite-based estimates, listed in the table below.Įxperimental, near-real time versions using GEOS-5 analysis fields in place of MERRA-2 are available going back to mid-2014 for some versions, including those using GPM precipitation.Ĩ-day experimental forecasts are available going back to December 2017.Īll versions of the FWI calculations use the MERRA-2 T, RH, wind speed and snow depth estimates GFWED is comprised of eight different sets of FWI calculations, all using temperature, relative humidity, wind speed and snow depth estimates from the NASA Modern Era Retrospective Analysis for Research and Applications version 2 (MERRA-2) (Rienecker et al., 2011). ![]() (2008) daily precipitation estimate over land.įigure created using the Panoply desktop application.įWI System calculations require measurements of 12:00 local time temperature at 2m, relative humidity at 2m, and wind speed at 10m, daily snow-depth, and precipitation totaled over the previous 24 hours. Mean July Fire Weather Index from 1980-2012, based on the Chen et al.
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