Dr. Ajit Subramaniam

Pronouns: He/His

Lamont Research Professor, Biology and Paleo Environment, Lamont-Doherty Earth Observatory (LDEO), Columbia Climate School

Lecturer, M.S. in Sustainability Science

School of Professional Studies

Affiliated with: Center for Science and Society

3 Marine Biology
61 Rt 9W
Palisades, NY 10964

48 PUBLICATIONS ON COLUMBIA | ACADEMIC COMMONS

Only select publications listed below
Name Published Date
Coastal trapped waves and tidal mixing control primary production in the tropical Angolan upwelling system 2024
Data For: An Improved Bio-Physical Parameterization for Radiant Heating in the Surface Ocean 2024
Modulation of Equatorial Currents and Tropical Instability Waves During the 2021 Atlantic Niño 2024
Planktonic habitats in the Amazon Plume region of the Western Tropical North Atlantic 2024
Ash Deposition Triggers Phytoplankton Blooms at Nishinoshima Volcano, Japan. 2023
A synergistic future for AI and ecology 2023
Characteristics of ringed seal Pusa hispida (‘natchiq’) denning habitat in Kotzebue Sound, Alaska, during a year of limited sea ice and snow 2023
Diatom-Diazotroph Associations in hydrographically defined habitats of the South China Sea 2023
Nitrogen fixation rates in the Guinea Dome and the equatorial upwelling regions in the Atlantic Ocean 2023
Symposium on Advances in Ocean Observation 2023
Trichodesmium around Australia: A view from space 2023
Cyanobacterial Diazotroph Distributions in the Western South Atlantic 2022
Iterative spatial leave-oneout cross-validation and gap-filling based data augmentation for supervised learning applications in marine remote sensing 2022
Mercury methylation linked to nitrification in the tropical North Atlantic Ocean 2022
Pumice Raft Detection Using Machine-Learning on Multispectral Satellite Imagery 2022
Quantifying Per-Cell Chlorophyll a in Natural Picophytoplankton Populations Using Fluorescence-Activated Cell Sorting. 2022
The Photophysiological Response of Nitrogen-Limited Phytoplankton to Episodic Nitrogen Supply Associated With Tropical Instability Waves in the Equatorial Atlantic 2022
Co-production of knowledge reveals loss of Indigenous hunting opportunities in the face of accelerating Arctic climate change 2021
Environmental Regulation of the Nitrogen Supply, Mean Trophic Position, and Trophic Enrichment of Mesozooplankton in the Mekong River Plume and Southern South China Sea 2021
Impact of Climate Variability of the Western Tropical Pacific on Maximum Salinity Water in the South China Sea 2021
Small pigmented eukaryote assemblages of the western tropical North Atlantic around the Amazon River plume during spring discharge 2021
The Winter Heat Budget of Sea Ice in Kotzebue Sound: Residual Ocean Heat and the Seasonal Roles of River Outflow 2021
Thin ice, deep snow and surface flooding in Kotzebue Sound: landfast ice mass balance during two anomalously warm winters and implications for marine mammals and subsistence hunting 2021
Accuracy of Empirical Satellite Algorithms for Mapping Phytoplankton Diagnostic Pigments in the Open Ocean: A Supervised Learning Perspective 2020
Comparison of Cloud-Filling Algorithms for Marine Satellite Data 2020
Using ship-deployed high-endurance unmanned aerial vehicles for the study of ocean surface and atmospheric boundary layer processes 2020
Habitat delineation in highly variable marine environments 2019
Are Extracted Materials Truly Representative of Original Samples? Impact of C18 Extraction on CDOM Optical and Chemical Properties 2016
Elevated surface chlorophyll associated with natural oil seeps in the Gulf of Mexico 2016
Highly variable nutrient concentrations in the Northern Gulf of Mexico 2016
Influence of the Amazon River Discharge on the Biogeography of Phytoplankton Communities in the Western Tropical North Atlantic 2014
Equatorial Upwelling Enhances Nitrogen Fixation in the Atlantic Ocean 2013
A Model for the Prediction of Harmful Algae Blooms in the Vietnamese Upwelling Area 2011
Nitrogen fixation by Trichodesmium spp. and unicellular diazotrophs in the North Pacific Subtropical Gyre 2011
Decadal time-series of SeaWiFS retrieved CDOM absorption and estimated CO₂ photoproduction on the continental shelf of the eastern United States 2009
Distribution and activity of diazotrophs in the Eastern Equatorial Atlantic 2009
Amazon River enhances diazotrophy and carbon sequestration in the tropical North Atlantic Ocean 2008
Causes and impacts of the 2005 Amazon drought 2008
Influence of the Amazon River plume on distributions of free-living and symbiotic cyanobacteria in the western tropical north Atlantic Ocean 2007
Seasonal variations in the Amazon plume-related atmospheric carbon sink 2007
An improved bio-optical model for the remote sensing of Trichodesmium spp. blooms 2005
Nitrogen fixation by Trichodesmium spp.: An important source of new nitrogen to the tropical and subtropical North Atlantic Oceean 2005
Estimates of atmospheric-processed soluble iron from observations and a global mineral aerosol model: Biogeochemical implications 2004
Influence of the Amazon River on the surface optical properties of the western tropical North Atlantic Ocean 2004
Bio-optical properties of the marine diazotrophic cyanobacteria Trichodesmium spp. I. Absorption and photosynthetic action spectra 1999
Bio-optical properties of the marine diazotrophic cyanobacteria Trichodesmium spp. II. A reflectance model for remote sensing 1999
Extensive bloom of a N₂-fixing diatom/cyanobacterial association in the tropical Atlantic Ocean 1999
An extensive bloom of the N₂-fixing cyanobacterium Trichodesmium erythraeum in the central Arabian Sea 1998

PUBLICATIONS

Charvet, S., E. Kim, A. Subramaniam, J. Montoya and S. Duhamel (2021). "Small pigmented eukaryote assemblages of the western tropical North Atlantic around the Amazon River plume during spring discharge." Sci Rep 11(1): 16200.  10.1038/s41598-021-95676-2

Weber, S. C., N. Loick‐Wilde, J. P. Montoya, M. Bach, H. Doan‐Nhu, A. Subramaniam, I. Liskow, L. Nguyen‐Ngoc, D. Wodarg and M. Voss (2021). "Environmental Regulation of the Nitrogen Supply, Mean Trophic Position, and Trophic Enrichment of Mesozooplankton in the Mekong River Plume and Southern South China Sea." Journal of Geophysical Research: Oceans 126(8).  10.1029/2020jc017110

Hauser, D. D. W., A. V. Whiting, A. R. Mahoney, J. Goodwin, C. Harris, R. J. Schaeffer, R. Schaeffer, N. J. M. Laxague, A. Subramaniam, C. R. Witte, S. Betcher, J. M. Lindsay and C. J. Zappa (2021). "Co-production of knowledge reveals loss of Indigenous hunting opportunities in the face of accelerating Arctic climate change." Environmental Research Letters 16(9).  10.1088/1748-9326/ac1a36

Witte, C. R., C. J. Zappa, A. R. Mahoney, J. Goodwin, C. Harris, R. E. Schaeffer, R. Schaeffer, S. Betcher, D. D. W. Hauser, N. J. M. Laxague, J. M. Lindsay, A. Subramaniam, K. E. Turner and A. Whiting (2021). "The Winter Heat Budget of Sea Ice in Kotzebue Sound: Residual Ocean Heat and the Seasonal Roles of River Outflow." Journal of Geophysical Research: Oceans.  10.1029/2020jc016784

Mahoney, A. R., K. E. Turner, D. D. W. Hauser, N. J. M. Laxague, J. M. Lindsay, A. V. Whiting, C. R. Witte, J. Goodwin, C. Harris, R. J. Schaeffer, R. Schaeffer, S. Betcher, A. Subramaniam and C. J. Zappa (2021). "Thin ice, deep snow and surface flooding in Kotzebue Sound: landfast ice mass balance during two anomalously warm winters and implications for marine mammals and subsistence hunting." Journal of Glaciology: 1-15.  10.1017/jog.2021.49

*Stock, A. and A. Subramaniam (2020) Accuracy of empirical satellite algorithms for mapping phytoplankton diagnostic pigments in the open ocean: A supervised learning perspective.  https://doi.org/10.3389/fmars.2020.00599

*Stock, A., A. Subramaniam, G. L. Van Dijken, L. M. Wedding, K. R. Arrigo, M. M. Mills, M. A. Cameron and F. Micheli (2020). "Comparison of Cloud-Filling Algorithms for Marine Satellite Data." Remote Sensing 12(20).  10.3390/rs12203313

Zappa, C. J., S. M. Brown, N. J. M. Laxague, T. Dhakal, R. A. Harris, A. M. Farber and A. Subramaniam (2020). "Using Ship-Deployed High-Endurance Unmanned Aerial Vehicles for the Study of Ocean Surface and Atmospheric Boundary Layer Processes." Frontiers in Marine Science 6.  10.3389/fmars.2019.00777

*Weber, S. C., A. Subramaniam, J. P. Montoya, H. Doan-Nhu, L. Nguyen-Ngoc, J. W. Dippner and M. Voss (2019). "Habitat delineation in highly variable marine environments." Frontiers in Marine Science. 6:112. doi: 10.3389/fmars.2019.00112

Cardona, Y., A. Bracco, T.A. Villareal, A. Subramaniam, S.C. Weber, J.P. Montoya. (2016) Highly variable nutrient concentrations in the Northern Gulf of Mexico.  Deep Sea Research II. 129, 20–30. http://dx.doi.org/10.1016/j.dsr2.2016.04.010