Robert Letscher

Assistant Director - Ocean Process Analysis Laboratory
Phone: (603) 862-1008
Office: Earth Sciences, 142 Morse Hall, Durham, NH 03824
Color photo of employee.

Assistant Professor of Chemical Oceanography
Earth Sciences &
Ocean Process Analysis Laboratory


  • Ph.D., University of Miami
  • B.S., University of Miami

Research Interests

  • Biogeochemistry
  • Ocean Modeling
  • Oceanography

Courses Taught

  • ESCI 400: Freshman Field Seminar
  • ESCI 501: Introduction to Oceanography
  • ESCI 747/847: Aqueous Geochemistry
  • ESCI 752/852: Chemical Oceanography
  • INCO 590: Student Research Experience
  • INCO 790: Advanced Research Experience

Selected Publications

Letscher, R. T., Wang, W., Liang, Z., & Knapp, A. N. (2022). Regionally Variable Contribution of Dissolved Organic Phosphorus to Marine Annual Net Community Production. Global Biogeochemical Cycles, 36(12). doi:10.1029/2022gb007354

Liang, Z., Letscher, R. T., & Knapp, A. N. (2022). Dissolved organic phosphorus concentrations in the surface ocean controlled by both phosphate and iron stress. NATURE GEOSCIENCE, 15(8), 651-+. doi:10.1038/s41561-022-00988-1

Letscher, R. T., Wang, W. -L., Liang, Z., & Knapp, A. N. (2022). Regionally variable contribution of dissolved organic phosphorus to marine annual net community production. doi:10.1002/essoar.10510528.1

Martiny, A. C., Hagstrom, G. I., DeVries, T., Letscher, R. T., Britten, G. L., Garcia, C. A., . . . Matsumoto, K. (2022). Marine phytoplankton resilience may moderate oligotrophic ecosystem responses and biogeochemical feedbacks to climate change. LIMNOLOGY AND OCEANOGRAPHY, 67, S378-S389. doi:10.1002/lno.12029

Long, M. C., Moore, J. K., Lindsay, K., Levy, M., Doney, S. C., Luo, J. Y., . . . Sylvester, Z. T. (2021). Simulations With the Marine Biogeochemistry Library (MARBL). JOURNAL OF ADVANCES IN MODELING EARTH SYSTEMS, 13(12). doi:10.1029/2021MS002647

Letscher, R. T., Primeau, F., & Moore, J. K. (2016). Nutrient budgets in the subtropical ocean gyres dominated by lateral transport. NATURE GEOSCIENCE, 9(11), 815-+. doi:10.1038/NGEO2812

Letscher, R. T., & Moore, J. K. (2015). Preferential remineralization of dissolved organic phosphorus and non-Redfield DOM dynamics in the global ocean: Impacts on marine productivity, nitrogen fixation, and carbon export. GLOBAL BIOGEOCHEMICAL CYCLES, 29(3), 325-340. doi:10.1002/2014GB004904

Letscher, R. T., Moore, J. K., Teng, Y. -C., & Primeau, F. (2015). Variable C: N: P stoichiometry of dissolved organic matter cycling in the Community Earth System Model. BIOGEOSCIENCES, 12(1), 209-221. doi:10.5194/bg-12-209-2015

Letscher, R. T., Hansell, D. A., Carlson, C. A., Lumpkin, R., & Knapp, A. N. (2013). Dissolved organic nitrogen in the global surface ocean: Distribution and fate. GLOBAL BIOGEOCHEMICAL CYCLES, 27(1), 141-153. doi:10.1029/2012GB004449

Letscher, R. T., Hansell, D. A., & Kadko, D. (2011). Rapid removal of terrigenous dissolved organic carbon over the Eurasian shelves of the Arctic Ocean. MARINE CHEMISTRY, 123(1-4), 78-87. doi:10.1016/j.marchem.2010.10.002

Most Cited Publications