Article Information
- Received July 18, 2019
- Revision received September 20, 2019
- Accepted November 15, 2019
- Published online July 6, 2020.
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Author Information
- M.D. Tomer,
- S.A. Porter,
- D.E. James and
- J.D. Van Horn
Mark D. Tomer (corresponding author) is a research soil scientist for USDA Agricultural Research Service (ARS), National Laboratory for Agriculture and the Environment, Ames, Iowa. Sarah A. Porter is formerly a physical science technician with USDA ARS, National Laboratory for Agriculture and the Environment, currently a senior geographic information systems (GIS) analyst with Environmental Working Group, Minneapolis, Minnesota. David. E. James is a geographic information specialist for USDA ARS, National Laboratory for Agriculture and the Environment, Ames, Iowa. Jessica D. Van Horn (Beasley) is formerly a physical science technician with USDA ARS, currently senior GIS analyst, Geographic Technologies Group, Goldsboro, North Carolina.