MM5 Smoke and Fire Weather Resources

#!/usr/bin/perl do "config.pl" ; do "mdate.pl" ; use CGI; $cgi = new CGI; print "Content-type: text/html\n\n"; print < MM5 Smoke and Fire Weather Resources

Weather Data for BEHAVE:

This information is for preliminary planning only. It is not a substitute for direct, on-site observations on the day of the planned burn.

BEHAVE is a program to predict rate of spread and flame length for wildland fires. By selecting a time and location below, you can obtain MM5 forecast values for temperature, wind speed and direction, and relative humidity for use in BEHAVE calculations.

When you choose a time and location, you will receive three sets of weather forecast values. These three sets of weather values provide an estimate of the range of conditions that may occur during a fire at the time and location specified. If using them in BEHAVE produces fire characteristics that vary widely, this indicates that a fire could show a similar range of behaviors.

The first set of weather values reflects surface conditions, with wind speed and direction at 10 meters. These are the standard BEHAVE input values. The second set reflects the average conditions in the layer of air near the surface that is freely mixing down to the surface. The third set of values reflects the air likely to mix down to the surface during a fire that develops a coherent, vertical plume.

Select the geographic location, date and time below to extract weather data for input into a fire behavior model:
EOFHTML # Extract available dates from the names of NetCDF files in data directory if (-d "data/behave/") { chdir("data/behave/"); # For each NetCDF file while (<*.nc>) { # Create a hash of unique dates (only the keys matter) # NOTE: these dates are in PST! if (m/^(........)(08)\.nc/) { # $dateHash{add_delta_hours($1, -8)} = "1"; $dateHash{"{$1}00"} = "1"; } } } else { die "Data directory does not exist ($!)"; } # Sort the keys of the date hash @dataSet = sort keys %dateHash; # Specify a date formatting for the option menu $fmt = '%Y %b %d'; # Today's date (to be chosen by default in the option menu) pack_date(Localtime()) =~ /^(........)(..)$/; $today = $1; # Print the date selection menu print "\n"; print "\n"; print <

Longitude W (decimal):

Latitude N (decimal):

Date Hour (Local)

Time Zone

Day: (select Today or Tomorrow)
Time: (Data are available from 0001 Today to 2000 EDT (1900 CDT) Tomorrow.)
Time zone: (radio buttons for EDT, CDT, MDT, PDT)

To obtain information on weather from past days, please contact the AirFire team.

The BEHAVE 3-layer data generator was developed at the Eastern Area Modeling Consortium.

EOFHTML

Longitude W (decimal):
Latitude N (decimal):
Date		Hour (Local)
Time Zone