The example shown here is over the southeast US with Aqua/Terra MODIS active fires.
Fire weather calculator code#
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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