U.S. Department of Agriculture1. Historical maps of land use in Puerto Rico in 1951
- Author(s):
- Helmer, Eileen H.; Córdova, Juan R.; Quiñones, Maya; Hubing, Nick
2. Forest age map, tree species traits and Landsat phenology metrics for Puerto Rico and the U.S. Virgin Islands
- Author(s):
- Helmer, Eileen H.; Kay, Shannon L.; Marcano-Vega, Humfredo; Powers, Jennifer S.; Wood, Tana E.; Zhu, Xiaolin; Gwenzi, David; Ruzycki, Thomas S.
3. St. Kitts, Nevis, St. Eustatius, Grenada, and Barbados land cover and forest formations (1999-2003)
- Author(s):
- Helmer, Eileen H.; Kennaway, Todd A.; Pedreros, Diego H.; Clark, Matthew L.; Marcano-Vega, Humfredo; Tieszen, Larry L.; Ruzycki, Thomas S.; Schill, S. R.; Carrington, C. M. Sean
4. Puerto Rico, Vieques and Culebra land cover and forest formations circa 2000
- Author(s):
- Kennaway, Todd A.; Helmer, Eileen H.
5. Virgin Islands land cover and forest structure
- Author(s):
- Kennaway, Todd A.; Helmer, Eileen H.; Lefsky, Michael A.; Brandeis, Tom J.; Sherrill, Kirk R.
6. Shapefiles containing potential areas for agriculture, forestry, and conservation in Puerto Rico
- Author(s):
- Gould, William A.; Wadsworth, Frank H.; Quiñones, Maya; Fain, Stephen J.; Álvarez-Berríos, Nora L.
7. Greater Border Lakes Region land cover classification and change detection
- Author(s):
- Wolter, Peter T.; Sturtevant, Brian R.; Miranda, Brian R.; Lietz, Sue M.; Townsend, Philip A.; Pastor, John