Table 1.

Site characteristics

Site	Major aspect	Mean elevation (m)	MAP (mm/y)	MAT (°C)	Lithology	Mean curvature (m−1)	Curvature standard deviation (m−1)	Reference
Johnston Draw, ID, USA	North and South	1600	550	7.4	Granite-Diorite and Quartz-Monzonite	0.0001	0.021	This study
Tennessee Valley, CA, USA	Northeast and Southwest	170	760	14	Greenstone, Greywacke and Chert	−0.00012	0.034	2, 3
Coos Bay, OR, USA	West and East	669	1500	11.5	Sandstone and Siltstone	−0.00013	0.059	21
Nunnock River, NSW, AU	Northwest and Southeast	950	910	13.5	Granite-Diorite	ND	ND	20
Point Reyes, CA, USA	South	112	430	11.5	Quartz-Diorite and Granite-Diorite	0.00004	0.039	22
Marshall Gulch (sub-catchment), AZ, USA	North and South	2439	875	10	Granite, Quartzite and Amphibolite	−0.00009	0.071	27
Babbington Creek, ID, USA	North and South	1500	513	7.4	Granite-Diorite and Quartz-Monzonite	−0.00004	0.018	This study
Gordon Gulch, CO, USA	North and South	2583	519	5.1	Biotite-Gneiss	0.00006	0.040	34, 35
Reynolds Mountain, ID, USA	West and East	2082	866	5.2	Rhyolitic Tuff and Basalt	0.00002	0.020	This study

These include major aspect, mean elevation, mean annual precipitation (MAP), mean annual temperature (MAT), lithology, and catchment curvature mean and standard deviation derived from high resolution (5 meter) digital elevation model (DEM) for cross-site analysis and model validation. Light and Ranging (LiDAR) data was not available for the Nunnock River. Mean elevation and curvatures were derived from reported local observations²⁰, and mean and distribution of curvature were not obtained