Name	Notation	Description	Types	Status
Surface of ground dry (without cracks and no appreciable amount of dust or loose sand)	0		Concept	stable
Surface of ground moist	1		Concept	stable
Surface of ground wet (standing water in small or large pools on surface)	2		Concept	stable
Flooded	3		Concept	stable
Surface of ground frozen	4		Concept	stable
Glaze on ground	5		Concept	stable
Loose dry dust or sand not covering ground completely	6		Concept	stable
Thin cover of loose dry dust or sand covering ground completely	7		Concept	stable
Moderate or thick cover of loose dry dust or sand covering ground completely	8		Concept	stable
Extremely dry with cracks	9		Concept	stable
Ground predominantly covered by ice	10		Concept	stable
Compact or wet snow (with or without ice) covering less than one half of the ground	11		Concept	stable
Compact or wet snow (with or without ice) covering at least one half of the ground but ground not completely covered	12		Concept	stable
Even layer of compact or wet snow covering ground completely	13		Concept	stable
Uneven layer of compact or wet snow covering ground completely	14		Concept	stable
Loose dry snow covering less than one half of the ground	15		Concept	stable
Loose dry snow covering at least one half of the ground but ground not completely covered	16		Concept	stable
Even layer of loose dry snow covering ground completely	17		Concept	stable
Uneven layer of loose dry snow covering ground completely	18		Concept	stable
Snow covering ground completely; deep drifts	19		Concept	stable
Missing value	31		Concept	stable