To see the locations of the CLAMP vegetation calibration (training set) sites (e.g. Physg3brcAZ) using Google Earth simply download the file called "CLAMP Sites.kmz" by holding down the " alt " key and clicking here . The file will download as a zipped file which will need to be "unzipped" before it can be used. Drag the unzipped file onto your Google Earth "Places" pane. The file should then install into "Temporary Items" and may be saved into "My Places" when prompted. By clicking on the individual placeholders (tree icons) a dialogue box will open showing the collecting data associated with each site.
If you don't have Google Earth you can download it free by clicking here.