Positions

Research Areas research areas

Overview

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

    • Selected Publications

    Academic Article

    Year Title
    2022 Marine phytoplankton resilience may moderate oligotrophic ecosystem responses and biogeochemical feedbacks to climate change.  Limnology and Oceanography.  67:S378-S389. 2022
    2021 Simulations With the Marine Biogeochemistry Library (MARBL).  Journal of Advances in Modeling Earth Systems.  13. 2021
    2020 The Dual Isotopic Composition of Nitrate in the Gulf of Mexico and Florida Straits.  Journal of Geophysical Research: Oceans.  125. 2020
    2018 Evaluation of the seasonal formation of subsurface negative preformed nitrate anomalies in the subtropical North Pacific and North Atlantic.  Biogeosciences.  15:6461-6480. 2018
    2018 Does Marine Surface Tension Have Global Biogeography? Addition for the OCEANFILMS Package.  ATMOSPHERE.  9:216-216. 2018
    2018 Vertically migrating phytoplankton drive seasonal formation of subsurface negative preformed nitrate anomalies in the subtropical North Pacific and North Atlantic.  Biogeosciences Discussions.  1-40. 2018
    2018 Large Stimulation of Recalcitrant Dissolved Organic Carbon Degradation by Increasing Ocean Temperatures.  Frontiers in Marine Science.  4:436. 2018
    2017 Modest net autotrophy in the oligotrophic ocean.  Global Biogeochemical Cycles.  31:699-708. 2017
    2017 N2O production and consumption from stable isotopic and concentration data in the Peruvian coastal upwelling system.  Global Biogeochemical Cycles.  31:678-698. 2017
    2016 Nutrient budgets in the subtropical ocean gyres dominated by lateral transport.  Nature Geoscience.  9:815-+. 2016
    2016 New nutrients exert fundamental control on dissolved organic carbon accumulation in the surface Atlantic Ocean..  Proceedings of the National Academy of Sciences of the United States of America.  113:10497-10502. 2016
    2015 Microbial community composition and nitrogen availability influence DOC remineralization in the South Pacific Gyre.  Marine Chemistry.  177:325-334. 2015
    2015 Global distribution and surface activity of macromolecules in offline simulations of marine organic chemistry.  Biogeochemistry.  126:25-56. 2015
    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.  29:325-340. 2015
    2015 Variable C: N: P stoichiometry of dissolved organic matter cycling in the Community Earth System Model.  Biogeosciences.  12:209-221. 2015
    2014 Variable C : N : P stoichiometry of dissolved organic matter cycling in the Community Earth System Model.  Biogeosciences Discussions.  11:9071-9101. 2014
    2013 Dissolved organic nitrogen dynamics in the Arctic Ocean.  Marine Chemistry.  148:1-9. 2013
    2013 Dissolved organic nitrogen in the global surface ocean: Distribution and fate.  Global Biogeochemical Cycles.  27:141-153. 2013
    2011 Effect of Dissolved Organic Carbon and Alkalinity on the Density of Arctic Ocean Waters.  Aquatic Geochemistry.  17:311-326. 2011
    2011 Rapid removal of terrigenous dissolved organic carbon over the Eurasian shelves of the Arctic Ocean.  Marine Chemistry.  123:78-87. 2011
    Does Marine Surface Tension Have Global Biogeography? Addition for the OCEANFILMS Package.  ATMOSPHERE. 
    Phosphate and iron stress control global surface ocean dissolved organic phosphorus concentrations
    Regionally variable contribution of dissolved organic phosphorus to marine annual net community production
    Relative contributions of sinking and non-sinking carbon to the downward carbon flux
    Response to Anonymous Referee #1
    Response to Anonymous Referee #3
    Simulations with the Marine Biogeochemistry Library (MARBL)
    Supplementary material to "Vertically migrating phytoplankton drive seasonal formation of subsurface negative preformed nitrate anomalies in the subtropical North Pacific and North Atlantic"

    Teaching Activities

  • Chemical Oceanography Taught course 2022
  • Student Research Experience Taught course 2022
  • Freshman Field Seminar Taught course 2021
  • Introduction to Oceanography Taught course 2021
  • Topics/Ocean Biogeochemistry Taught course 2021
  • Adv Rsrch Exp/Earth Sciences Taught course 2021
  • Chemical Oceanography Taught course 2021
  • Chemical Oceanography Taught course 2021
  • Adv Rsrch Exp/Earth Science Taught course 2020
  • Aqueous Geochemistry Taught course 2020
  • Aqueous Geochemistry Taught course 2020
  • Introduction to Oceanography Taught course 2020
  • Rsrch Exp/Earth Sciences Taught course 2020
  • Chemical Oceanography Taught course 2020
  • Introduction to Oceanography Taught course 2019
  • Top/Ocean Biogeochemistry Taught course 2019
  • Adv Rsrch Exp/Earth Sciences Taught course 2018
  • Aqueous Geochemistry Taught course 2018
  • Aqueous Geochemistry Taught course 2018
  • Introduction to Oceanography Taught course 2018
  • Chemical Oceanography Taught course 2018

    • Education And Training

    Full Name

  • Robert Letscher

    • Mailing Address

  • University of New Hampshire

    142 Morse Hall

    8 College Rd

    Durham, NH  03824

    USA