1. University at Albany; Department of Geography and Planning; Albany; New York; USA
2. USGS; Troy; New York; USA
3. USDA Forest Service; Northeastern Forest Experiment Station; Durham; New Hampshire; USA
4. Central Dokuchaev's Soil Museum; St. Petersburg; Russia
5. University of New Hampshire; Complex Systems Research Center; New Hampshire; USA
6. State Hydrologic Institute; St. Petersburg; Russia
7. Lawrence Berkeley National Laboratory; California; USA