varkey	channel	longname	station-id	longitude	latitude	height-nn	height-ot	value	unit	specification	unix-start	unix-end	date-start	aggregation	
string	int	string	string	float	float	float	float	float	string	string	int	int	date-string,MEZ	string	
key	key	key	key	degree	degree	meter	meter	value	value	value	seconds	seconds	YYYY-MM-DDTHH:mm:ssZ	key