Table 3. Number of AMDAR data by turbulence intensity and altitude

Intensity altitude NIL LGT MOD SEV Number of data
Surface 550 381 5 0 936
1,000ft 1,190 338 4 0 1,532
2,000ft 1,666 510 6 1 2,183
3,000ft 1,480 193 4 0 1,677
4,000ft 1,426 162 1 1 1,590
5,000ft 1,467 105 5 0 1,577
Total 7,779 1,689 25 2 9,495