Fire Direction Calculator


Run Title
Output Table	Simple Fancy
Surface fire spread direction is	from Ignition Point from Fire Front
Spread directions are clockwise from	Upslope North
Aspect
Elapsed time (min)
Length-to-width Ratio
ROS Maximum (ft/min)
Heat per Unit Area (btu/ft2)
Direction of Maximum Spread
Vector of Interest
Range Variable
Range Variable Maximum
Range Variable Step Size
Output Variables	Aspect (input) Upslope (from North) Elapsed Time (input) Length-to-Width Ratio (input) Ros Maximum (input) Heat per Unit Area (input) Fireline Intensity Maximum Flame Length Maximum Direction of Maximum Spread (input) Direction of Maximum Spread (from North) Direction of Maximum Spread (from Upslope) Vector of Interest (input) Vector of Interest (from North) Degrees Vector of Interest (from Upslope) Degrees Vector of Interest (from Max) Degrees ROS from Ignition (beta) ROS from Fire Front (psi) Flame Length from ROS-beta Flame Length from ROS-psi Fireline Intensity from ROS-beta Fireline Intensity from ROS-psi Direction from Ignition (from North) Degrees Direction from Ignition (from Upslope) Degrees Direction from Ignition (from Max) (beta) Degrees Direction from Fire Front (from North) Degrees Direction from Fire Front (from Upslope) Degrees Direction from Fire Front (from Max) (psi) Degrees Direction from Ellipse Center (from Max) (theta) Degrees Direction from Ignition (from North) Radians Direction from Ignition (from Upslope) Radians Direction from Ignition (from Max) (beta) Radians Direction from Fire Front (from North) Radians Direction from Fire Front (from Upslope) Radians Direction from Fire Front (from Max) (psi) Radians Direction from Ellipse Center (from Max) (theta) Radians Eccentricity ROS Backing Heading Distance Backing Distance Ellipse Length Ellipse F Ellipse G Ellipse H Ellipse Area Ellipse Perimeter

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Experimental Fire Direction Calculator (Build 008 2014-01-16)