 	Release 2 of the WMS Global Mosaic, a seamless mosaic of Landsat7 scenes. 	Spatial resolution is 0.5 second for the pan band, 1 second for the visual and near-IR bands and 2 second for the thermal bands 	Use this layer to request individual grayscale bands. The default styles may have gamma, sharpening and saturation filters applied. 	The source dataset is part of the NASA Scientific Data Purchase, and contains scenes acquired in 1999-2003. 	Release 2.       