Ecological Archives A025078A4
Katherine J. Willis, Alistair W. R. Seddon, Peter R. Long, Elizabeth S. Jeffers, Neil Caithness, Milo Thurston, Mathijs G. D. Smit, Randi Hagemann, and Marc MaciasFauria. 2015. Remote assessment of locally important ecological features across landscapes: how representative of reality? Ecological Applications 25:1290–1302. http://dx.doi.org/10.1890/141431.1
Appendix D. Sensitivity analysis of discrete wavelet transform on the LEFT output of the Vulnerability layer (Table).
Table D1. Sensitivity analysis of discrete wavelet transform on the LEFT output of the Vulnerability layer. (Upper) Field forecast verification statistics with no offset (right), 50cell offset (middle), and 100cell offset (left). Verification statistics in Offset 100 marks the lower bound of verification statistics when accounting for the discretization artefact, suggesting a minor influence of this artefact on the agreement statistics between the two maps. (Lower) Example of changing the mother wavelet, applied to the highest resolution layer (1 × 1 cell, ~0.9 km²). Note that the verification statistics do not change with the selected mother wavelet, suggesting a robust result.

No Offset 

Offset50 

Offset100 

Cell Size 
Corr 
MSE 
Corr 
MSE 
Corr 
MSE 
16 × 16 
0.62 
0.012 
0.55 
0.011 
0.55 
0.012 
8 × 8 
0.66 
0.010 
0.57 
0.011 
0.56 
0.012 
4 × 4 
0.65 
0.010 
0.59 
0.01 
0.56 
0.012 
2 × 2 
0.62 
0.012 
0.58 
0.011 
0.55 
0.013 
1 × 1 
0.61 
0.012 
0.55 
0.012 
0.55 
0.013 
1 × 1 
Corr 
MSE 

Haar 
0.61 
0.012 

Daubechies 4 
0.61 
0.012 

Daubechies 6 
0.61 
0.012 

Daubechies 10 
0.61 
0.012 

Daubechies 20 
0.58 
0.013 