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