Corrigendum to: A phenology-driven fire danger index for northern grasslands

Johan Sjöström; Anders Granström

doi:10.1071/WF23013_CO

CORRIGENDUM (Open Access)

Next Contents Vol 33(2)

Corrigendum to: A phenology-driven fire danger index for northern grasslands

Johan Sjöström and Anders Granström

International Journal of Wildland Fire 33, WF23013_CO https://doi.org/10.1071/WF23013_CO

Published: 9 February 2024

© 2024 The Author(s) (or their employer(s)). Published by CSIRO Publishing on behalf of IAWF. This is an open access article distributed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License (CC BY-NC-ND)

This article corrects International Journal of Wildland Fire 33, 1332–1346. https://doi.org/10.1071/WF23013

The authors wish to advise on an error in Eqn 8 (which is repeated in the Appendix 2, Eqn A4-3) related to unit conversion.

The correct Eqn 8 should be:

(8)

R_{W} ({m \min}^{- 1}) = {\begin{array}{l} 0.9 + 16.13 \cdot W, & W < 1.4 {m s}^{- 1} \\ 23.33 + 41.18 \cdot {(W - 1.3889)}^{0.844}, & W \geq 1.4 {m s}^{- 1} \end{array}

The correct full Eqn A4 (appearing in Appendix 2) should be:

4. For each time step, calculate the spread rate (ROS) (m min⁻¹)
(A4-1) $Φ_{m c} = {\begin{array}{l} \exp (- 0.108 \cdot m c), & (m c \leq 12 %) \\ 0.684 - 0.0342 \cdot m c, & (m c > 12 % W < 3 {m s}^{- 1}) \\ 0.547 - 0.0228 \cdot m c, & (m c > 12 % W > 3 {m s}^{- 1}) \end{array}$
(A4-2) $Φ_{C} = e^{- 0.0224 \cdot G D D}$
(A4-3) $R O S = {\begin{array}{l} [0.9 + 16.13 \cdot W] Φ_{m c} Φ_{C}, & (for W < 1.4 {m s}^{- 1}) \\ [23.33 + 41.18 \cdot {(W - 1.3889)}^{0.844}] Φ_{m c} Φ_{C}, & (for W \geq 1.4 {m s}^{- 1}) \end{array}$