User Manual

Appendix A. PWS100 Output Codes
TABLE A-6. Intensity bounds for rain, drizzle and snow.
Rain Drizzle Snow Rain, Drizzle and Snow
Light
i<2.5 i<0.1 i<1.0
i<1/3×2.5+1/3×0.1+1/3×1.0
i<1.2 mmh
-1
Moderate
2.5≤i<10.0 0.1≤i<0.5 1.0≤i<5.0
1/3×2.5+1/3×0.1+1/3×1.0≤i<1/3×10+1/3×0.5+1/3×5.0
1.2 mmh
-1
≤i<5.17 mmh
-1
Heavy
i≥10.0 i≥0.5 i≥5.0
i≥
1/3×10+1/3×0.5+1/3×5.0
i≥5.17 mmh
-1
TABLE A-7. Intensity bounds for rain, drizzle, ice pellets, hail and snow.
Rain Drizzle Ice Pellets Hail Snow Rain, Drizzle, Ice Pellets, Hail
and Snow
Light
i<2.5 i<0.1 i<1.0 i<2.5 i<1.0
i<1/5×2.5+1/5×0.1+1/5×1.0+
1/5×2.5+1/5×1.0
i<0.97 mmh
-1
Moderate
2.5≤i<10.0 0.1≤i<0.5 1.0≤i<5.0 2.5≤i<10.0 1.0≤i<5.0
1/5×2.5+1/5×0.1+1/5×1.0+1/5
×2.5+1/5×1.0
≤i<1/5×10.0+1/5
×0.5+1/5×5.0+1/5×10.0+1/5×
5.0
0.97 mmh
-1
≤i<6.1 mmh
-1
Heavy
i≥10.0 i≥0.5 i≥5.0 i≥10.0 i≥5.0
i≥
1/5×10.0+1/5×0.5+1/5×5.0+
1/5×10.0+1/5×5.0
i≥6.1 mmh
-1
TABLE A-8. Intensity bounds for ice pellets, hail and snow.
Ice Pellets Hail Snow Ice Pellets, Hail and Snow
Light
i<1.0 i<2.5 i<1.0
i<1/3×1.0+1/3×2.5+1/3×1.0
i<1.5 mmh
-1
Moderate
1.0≤i<5.0 2.5≤i<10.0 1.0≤i<5.0
1/3×1.0+1/3×2.5+1/3×1.0≤i<1/3×5.0+1/3×10+1/3
×5.0
1.5 mmh
-1
≤i<6.67mmh
-1
Heavy
i≥5.0 i≥10.0 i≥5.0
i≥
1/3×5.0+1/3×10+1/3×5.0
i≥6.67mmh
-1
A-9