Table 4 Descriptions of the selected landscape metrics.
From: Quantifying how urban landscape heterogeneity affects land surface temperature at multiple scales
Category | Metric | Equation | Range |
|---|---|---|---|
Area and Edge | |||
|  | PLAND | C1(TB10 − TB11) | 0 ≤ PLAND ≤ 100 |
TE | ∑eik | TE ≥ 0, without limit. | |
ED | \( \frac{\sum {e}_{ik}}{A}(10000) \) | 0 ≤ ED, no limit | |
Shape | PAFRAC | \( \frac{\frac{2}{\left[\left(\sum \mathit{\ln}{p}_{ij}-\mathit{\ln}{a}_{ij}\right)\right]-\left[\left(\sum \mathit{\ln}{p}_{ij}\right)\left(\sum \mathit{\ln}{a}_{ij}\right)\right]}}{\left(\sum \mathit{\ln}{p}_{ij}^2\right)-\left(\sum \mathit{\ln}{p}_{ij}\right)} \) | 1 ≤ PAFRAC ≤ 2 |
Aggregation | LSI | \( \frac{0.25\sum {e}_{ik}}{\sqrt{A}} \) | 1 ≤ LSI, no limit |
|  | SPLIT | \( \frac{A^2}{\sum {A}_{ij}^2} \) | 1 ≤ SPLIT ≤ number of cells in the landscape area squared |
|  | NP | ni | NP ≥ 1, without limit |
| Â | PD | \( \frac{n_i}{A}(10000)(100) \) | PD > 0, constrained by cell size |