assim_flag:long_name = "assimilation flag" ;
		species:long_name = "observation species identifier" ;
		tilenum:long_name = "tile number (full domain)" ;
		lon:long_name = "observation longitude" ;
		lat:long_name = "observation latitude" ;
		obs:long_name = "observation value" ;
		obsvar:long_name = "observation error variance" ;
		fcst:long_name = "forecast value (observation equivalent)" ;
		fcstvar:long_name = "forecast error variance in observation space" ;
		ana:long_name = "analysis value (observation equivalent)" ;
		anavar:long_name = "analysis error variance in observation space" ;
		obsparam_species_id:long_name = "obs parameter species identifier" ;
		obsparam_assim:long_name = "obs parameter assimilation flag" ;
		obsparam_scale:long_name = "obs parameter scaling flag" ;
		obsparam_getinnov:long_name = "obs parameter innovation-output flag" ;
		obsparam_errstd:long_name = "obs parameter default observation error standard deviation" ;
		obsparam_varname:long_name = "obs parameter model variable name" ;
		obsparam_units:long_name = "obs parameter observation units" ;
		obsparam_descr:long_name = "obs parameter description" ;