Field measurements of the effect of black crustose lichen on reflectance of various rock substrates. The heavy curves correspond to bare rock and the light curves to lichen on the same substrate. Gaps in the curves correspond to the atmospheric water vapor absorption bands, as explained in Vander Veen 2005

Reflectance spectra of various fructicose lichens as measured in the field (heavy curves) and in the laboratory (light curves) using the same samples.

Reflectance spectra of typical west Greenland tundra vegetation, measured in the field.

Effect of Crustose (unless otherwise noted) lichens on various rock substrates as measured in the laboratory using samples collected in west Greenland. Heavy curves refer to bare rock and light curves to lichen on the same rock sample.

Effect of Crustose (unless otherwise noted) lichens on various rock substrates as measured in the laboratory using samples collected in west Greenland. Heavy curves refer to bare rock and light curves to lichen on the same rock sample.