Table 2 Description of the five models
From: Developing drought stress index for monitoring Pinus densiflora diebacks in Korea
Model no. | Description |
|---|---|
Model 1 (M1) | DSI = 0.5 × HI6 − 0.5 × SPI6 |
Model 2 (M2) | DSI = 0.7 × HI6 − 0.3 × SPI6 |
Model 3 (M3) | DSI = 0.5 × (0.5 × HI6 − 0.5 × SPI6) + 0.5 × (0.5 × HI48 − 0.5 × SPI48) |
Model 4 (M4) | DSI = 0.5 × (0.7 × HI6 − 0.3 × SPI6) + 0.5 × (0.7 × HI48 − 0.3 × SPI48) |
Model 5 (M5) | DSI = 0.7 × (0.7 × HI6 − 0.3 × SPI6) + 0.3 × (0.7 × HI48 − 0.3 × SPI48) |