netcdf hcangrid {
dimensions:
	x = 254 ;
	y = 420 ;
variables:
	double x(x) ;
		x:units = "m " ;
	double y(y) ;
		y:units = "m " ;
	float hcan(y, x) ;
		hcan:units = "m" ;
		hcan:missing_value = -9999.f ;
		hcan:long_name = "canopy height" ;
}