1. Dep. of Geosciences and Natural Resource Management; Univ. of Copenhagen; 1350 Copenhagen K Denmark
2. Hydroinnova LLC; Albuquerque NM 87106
3. School of Natural Resources, Univ. of Nebraska; Lincoln NE 68583
4. Dep. of Hydrology and Water Resources; Univ. of Arizona; Tucson AZ 85721
5. Agrosphere IBG-3; Forschungszentrum Jülich GmbH; Jülich Germany