Table 2 Modified Classes of NRI Values
From: Drought occurrences and its implications on the households in Yobe state, Nigeria
Index | Character of Rainfall | Vulnerability level |
|---|---|---|
1.31 or more | Very wet | Highly vulnerable |
0.86 to 1.30 | Moderately wet | Vulnerable |
0.51 to 0.85 | Mildly wet | Slightly vulnerable |
0.50 to −0.50 | Near normal | Not vulnerable |
−0.51 to − 0.85 | Mild drought | Slightly vulnerable |
−0.86 to −1.30 | Moderate drought | Vulnerable |
−1.31 or less | Severe drought | Highly vulnerable |