Peer-reviewed

Kramer, S.J., S. Maritorena, I. Cetinić, P.J. Werdell, D.A. Siegel (2024). Phytoplankton communities quantified from hyperspectral ocean reflectance correspond to pigment-based communities. Optics Express, 32(20), 1-16. https://doi.org/10.1364/OE.529906.

Meyer, M.G., M.A. Brzezinski, M.R. Cohn, S.J. Kramer, N. Paul, G. Sharpe, A.K. Niebergall, S. Gifford, N. Cassar, A. Marchetti (2024). Size-Fractionated primary production dynamics during the decline phase of the North Atlantic spring bloom. Global Biogeochemical Cycles, 38(7), 1-23. https://doi.org/10.1029/2023GB008019

Kramer, S.J., D. Catlett, L.M. Bolaños, A.P. Chase, M.J. Behrenfeld, E.S. Boss, E.T. Crockford, S.J. Giovannoni, J.R. Graff, N. Haëntjens, L. Karp-Boss, E.E. Peacock, C.S. Roesler, H.M. Sosik, D.A. Siegel (2024) Toward a synthesis of phytoplankton community composition methods for global-scale application. Limnology and Oceanography: Methods. 1-24. https://doi.org/10.1002/lom3.10602.

Cetinić, I., C.S. Rousseaux, I.T. Carroll, A.P. Chase, S.J. Kramer, P.J. Werdell, et al. (2024). Phytoplankton composition from sPACE: Requirements, opportunities, and challenges. Remote Sensing of Environment, 302, 113964. https://doi.org/10.1016/j.rse.2023.113964

Graff, J.R., N.B. Nelson, M. Roca-Martí, E. Romanelli, S.J. Kramer, Z. Erickson, I. Cetinić, K.O. Buesseler, et al. (2023). Reconciliation of total particulate organic carbon and nitrogen measurements determined using contrasting methods in the North Pacific Ocean as part of the NASA EXPORTS field campaign. Elementa: Science of the Anthropocene, 11(1), 00112. https://doi.org/10.1525/elementa.2022.00112

Bisson, K.M., P.J. Werdell, A.P. Chase, S.J. Kramer, B.B. Cael, E.S. Boss, L. McKinna, M.J. Behrenfeld (2023). Informing ocean color inversion products by seeding with ancillary observations. Optics Express, 31(24), 40557-40572. https://doi.org/10.1364/OE.503496  

Kramer, S.J., K.M. Bisson, C. Mitchell (2023). What data are needed to detect wildfire effects on coastal ecosystems? A case study during the Thomas Fire. Frontiers in Marine Science, 10, 1-12. https://www.frontiersin.org/articles/10.3389/fmars.2023.1267681

Bisson, K.M., S. Gassó, N. Mahowald, S. Wagner, B. Koffman, S.A. Carn, S. Deutsch, E. Gavel, S.J. Kramer, N. Krotkov, C. Mitchell, M.E. Pritchard, K. Stamieszkin, and C. Wilson (2023). Observing ocean ecosystem responses to volcanic ash. Remote Sensing of Environment, 296, 1-13. https://doi.org/10.1016/j.rse.2023.113749.

Fox, J., S.J. Kramer, J.R. Graff, M.J. Behrenfeld, E. Boss, G. Tilstone, K. Halsey (2022). An absorption-based approach to improved estimates of phytoplankton biomass and net primary production. Limnology and Oceanography: Letters, 7, 419-426. https://doi.org/10.1002/lol2.10275.

Kramer, S.J., D.A. Siegel, S. Maritorena, D. Catlett (2022). Modeling surface ocean phytoplankton pigments from hyperspectral remote sensing reflectance on global scales. Remote Sensing of Environment, 270, 1-14, https://doi.org/10.1016/j.rse.2021.112879.

Diaz, B., B. Knowles, C.T. Johns, C.P. Laber, K.G.V. Bondoc, L. Haramaty, E.L. Harvey, S.J. Kramer, L.M. Bolanos, D.P. Lowenstein, H. Fredricks, J.R. Graff, T. Westberry, K.D.A. Mojica, N. Haëntjens, N. Baetge, P. Gaube, E. Boss, C.A. Carlson, M.J. Behrenfeld, B.A.S. Van Mooy, and K.D. Bidle (2021). Seasonal mixed layer depth shapes phytoplankton physiology, viral infection, and accumulation in the North Atlantic. Nature Communications, 12, 1–16. https://doi.org/10.1038/s41467-021-26836-1.

Siegel, D.A.,…S.J. Kramer, and others (2021). Overview of the EXport Processes in the Ocean from RemoTe Sensing (EXPORTS) Northeast Pacific Field Deployment. Elementa: Science of the Anthropocene, 9(1), 1-31, https://doi.org/10.1525/elementa.2020.00107.

Kramer, S.J., K.M. Bisson, and A.D. Fischer (2020). Observations of phytoplankton community composition in the Santa Barbara Channel during the Thomas Fire. Journal of Geophysical Research: Oceans, 125(12), 1-16, https://doi.org/10.1029/2020JC016851.

Chase, A.P., S.J. Kramer, N. Haëntjens, E.S. Boss, L. Karp-Boss, M. Edmondson, and J.R. Graff (2020). Evaluation of diagnostic pigments to estimate phytoplankton size classes. Limnology and Oceanography: Methods, 18, 570-584, https://doi.org/10.1002/lom3.10385. 

Kramer, S.J., D.A. Siegel, and J.R. Graff (2020). Phytoplankton community composition determined from co-variability among phytoplankton pigments from the NAAMES field campaign. Frontiers in Marine Science, 7(215), 1-15, https://doi.org/10.3389/fmars.2020.00215. 

Bisson, K.M., N. Baetge, S.J. Kramer, D. Catlett, et al. (2020). California wildfire burns boundaries between science and art. Oceanography, 33(1), 16–19, https://doi.org/10.5670/oceanog.2020.110. 

Fox, J., M.J. Behrenfeld, N. Haëntjens, A.P. Chase, S.J. Kramer, E. Boss, L. Karp-Boss, N.L. Fisher, W.B. Penta, T.K. Westberry, and K.H. Halsey (2020). Phytoplankton growth and productivity in the western North Atlantic: Observations of regional variability from the NAAMES field campaigns. Frontiers in Marine Science, 7(24), 1-15, https://doi.org/10.3389/fmars.2020.00024. 

Kramer, S.J. and D.A. Siegel (2019). How can phytoplankton pigments be best used to characterize surface ocean phytoplankton groups for ocean color remote sensing algorithms? Journal of Geophysical Research: Oceans, 124(11), 7557-7574, https://doi.org/10.1029/2019JC015604. 

Kramer, S.J., C.S. Roesler, H.M. Sosik (2018). Bio-optical discrimination of diatoms from other phytoplankton in the surface ocean: Evaluation and refinement of a model for the Northwest Atlantic, Remote Sensing of Environment, 217, 126-143, https://doi.org/10.1016/j.rse.2018.08.010. 

In review and in revision

Kramer, S.J., E.L. Jones, N.L. Paul, M.L. Estapa, T.A. Rynearson, A.E. Santoro, S. Sudek, C.A. Durkin. Ocean carbon export can be predicted from ocean color-based phytoplankton communities. In review. https://doi.org/10.1101/2024.09.21.613760

Siegel, D.A., A.B. Burd, M.L. Estapa, E. Fields, L. Johnson, E. Romanelli, M.A. Brzezinski, K.O. Buesseler, S. Clevenger, I. Cetinić, L. Drago, C.A. Durkin, R. Kiko, S.J. Kramer, A. Maas, M. Omand, U. Passow, D.K. Steinberg. Dynamics of aggregates and sinking carbon fluxes in a turbulent ocean. In review. https://eartharxiv.org/repository/view/7020/

Datasets and conference papers

Kramer, S.J., D.A. Siegel, S. Maritorena, D. Catlett (2021). Global surface ocean HPLC phytoplankton pigments and hyperspectral remote sensing reflectance. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.937536. 

Nelson, N.B., C. Roesler, I. Cetinić, and S. Kramer (2021). HPLC pigment analysis, in EXPORTS Measurements and Protocols for the NE Pacific Campaign, edited by I. Cetinić and I. Soto Ramos, NASA Technical Memorandum, 236 pp., NASA Goddard Space Flight Center, Greenbelt, Maryland.

Boss, E. and S.J. Kramer (2020). How do we choose technologies to study the distribution of marine organisms in the ocean? Frontiers for Young Minds. https://doi.org/10.3389/frym.2020.00003. 

Kramer, S.J. and D.A. Siegel (2019). Global and local scale HPLC phytoplankton pigments dataset. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.938703.

Kramer, S.J., M. Brown, N. Haëntjens, and C. Roesler (2018). Multi-parameter assessment of phytoplankton community composition from absorption, reflectance, and quantitative imaging. Conference proceedings of Ocean Optics XXIV. October 2018, 1-10 pp, .

Kramer, S. and C. Roesler (2014). Phytoplankton and nitrate in Harpswell Sound: a multi-scale investigation. Conference proceedings of Ocean Optics XXII. October 2014, 1-10 pp.