Nils is a scientist in the field of Optical Oceanography. Since 2022, he has been a Assistant Research Professor at the University of Maine where he completed his PhD. Nils’ main research interest is to characterize the optical signature of plankton in the open ocean, investigating at multiple scales from individual cells (using cytometry) to global patterns (using remote sensing). Currently, he focuses on above water radiometry spending most of his time on the HyperNav system, which is aimed to vicariously calibrate the upcoming satellite PACE. He also led some engineering project that he shared with the oceanographic community including the development of pySAS: an autonomous solar tracker for above water radiometry; Inlinino: a software data logger for optical oceanography.

Kramer, S. J., Bolaños, L. M., Catlett, D., Chase, A. P., Behrenfeld, M. J., Boss, E. S., Haëntjens, N., ..., & Siegel, D. A. (2024). Toward a synthesis of phytoplankton communities composition methods for global‐scale application. Limnology and Oceanography: Methods. https://doi.org/10.1002/lom3.10602 PDF

Chase, A. P., Boss, E. S., Haëntjens, N., Culhane, E., Roesler, C., Karp-Boss, L. (2022). Plankton Imagery Data Inform Satellite-Based Estimates of Diatom Carbon. Geophysical Research Letters, e2022GL098076. https://doi.org/10.1029/2022GL098076 PDF

Haëntjens, N., Boss, E. S., Graff, J. R., Chase, A. P., & Karp‐Boss, L. (2022). Phytoplankton size distributions in the western North Atlantic and their seasonal variability. Limnology and Oceanography. https://doi.org/10.1002/lno.12172 PDF

Haëntjens, N., Forsythe, K., Denholm, B., Loftin, J., & Boss, E. (2022). pySAS: Autonomous Solar Tracking System for Surface Water Radiometric Measurements. Oceanography. https://doi.org/10.5670/oceanog.2022.210 PDF

de Vargas, C., Le Bescot, N., Pollina, T., Henry, N., Romac, S., Colin, S., Haëntjens, N., ... Prakash, M. (2022) M. Plankton Planet: a frugal, cooperative measure of aquatic life at the planetary scale. Frontiers in Marine Science, 1419. 10.3389/fmars.2022.936972 PDF

Diaz, B.P., Knowles, B., Johns, C.T., Laber, C.P., Bondoc, K. G. V., Haramaty, L., Natale, F., Harvey, E. L., Kramer, S. J., Bolaños, L.M., Lowenstein, D. P., Fredricks, H. F., Graff, J., Westberry, T. K., Mojica, K. D. A., Haëntjens, N., Baetge, N., Gaube, P., Boss, E., Carlson, C. A., Behrenfeld, M. J., Van Mooy, B. A. S., & Bidle, K. D., (2021). Seasonal mixed layer depth shapes phytoplankton physiology, viral production, and accumulation in the North Atlantic. Nature communications, 1, 6634. https://doi.org/10.1038/s41467-021-26836-1 PDF

Flores, J. M., Bourdin, G., Kostinski, A. B., Altaratz, O., Dagan, G., Lombard, F., Haëntjens, N., Boss, E., Sullivan, M.B., Gorsky, G., Lang-Yona, N., Trainic, M., Romac, S., Voolstra, C., Rudich, Y., Vardi, A., & Koren, I. (2021). Diel cycle of sea spray aerosol concentration. Nature communications, 12(1), 1-12. https://doi.org/10.1038/s41467-021-25579-3 PDF

Freney, E., Sellegri, K., Nicosia, A., Williams, L. R., Rinaldi, M., Trueblood, J. T., Prévôt, A. S. H., Thyssen, M., Grégori, G., Haëntjens, N., Dinasquet, J., Obernosterer, I., Van Wambeke, F., Engel, A., Zäncker, B., Desboeufs, K., Asmi, E., Timonen, H., & Guieu, C. (2021). Mediterranean nascent sea spray organic aerosol and relationships with seawater biogeochemistry. Atmospheric Chemistry and Physics, 21(13), 10625–10641. https://doi.org/10.5194/acp-21-10625-2021 PDF

Marañón, E., Van Wambeke, F., Uitz, J., Boss, E. S., Dimier, C., Dinasquet, J., Engel, A., Haëntjens, N., Pérez-Lorenzo, M., Taillandier, V., & Zäncker, B. (2021). Deep maxima of phytoplankton biomass, primary production and bacterial production in the Mediterranean Sea. Biogeosciences, 18(5), 1749–1767. https://doi.org/10.5194/bg-18-1749-2021 PDF

Sellegri, K., Nicosia, A., Freney, E., Uitz, J., Thyssen, M., Grégori, G., Engel, A., Zäncker, B., Haëntjens, N., Mas, S., Picard, D., Saint-Macary, A., Peltola, M., Rose, C., Trueblood, J., Lefevre, D., D’Anna, B., Desboeufs, K., Meskhidze, N., … Law, C. S. (2021). Surface ocean microbiota determine cloud precursors. Scientific Reports, 11(1), 281. https://doi.org/10.1038/s41598-020-78097-5 PDF

Siegel, D. A., Cetinić, I., Graff, J. R., Lee, C. M., Nelson, N., Perry, M. J., Ramos, I. S., Steinberg, D. K., Buesseler, K., Hamme, R., Fassbender, A. J., Nicholson, D., Omand, M. M., Robert, M., Thompson, A., Amaral, V., Behrenfeld, M., Benitez-Nelson, C., Bisson, K., …, Haëntjens, N., … Zhang, X. (2021). An operational overview of the EXport Processes in the Ocean from RemoTe Sensing (EXPORTS) Northeast Pacific field deployment. Elementa: Science of the Anthropocene, 9(1), 00107. https://doi.org/10.1525/elementa.2020.00107 PDF

Yang, B., Fox, J., Behrenfeld, M. J., Boss, E. S., Haëntjens, N., Halsey, K. H., Emerson, S. R., & Doney, S. C. (2021). In Situ Estimates of Net Primary Production in the Western North Atlantic With Argo Profiling Floats. Journal of Geophysical Research: Biogeosciences, 126(2). https://doi.org/10.1029/2020JG006116 PDF

Bolaños, L. M., Karp-Boss, L., Choi, C. J., Worden, A. Z., Graff, J. R., Haëntjens, N., Chase, A. P., Della Penna, A., Gaube, P., Morison, F., Menden-Deuer, S., Westberry, T. K., O’Malley, R. T., Boss, E., Behrenfeld, M. J., & Giovannoni, S. J. (2020). Small phytoplankton dominate western North Atlantic biomass. The ISME Journal, 14(7), 1663–1674. https://doi.org/10.1038/s41396-020-0636-0 PDF

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

Fox, J., Behrenfeld, M. J., Haëntjens, N., Chase, A., Kramer, S. J., Boss, E., Karp-Boss, L., Fisher, N. L., Penta, W. B., Westberry, T. K., & Halsey, K. H. (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. https://doi.org/10.3389/fmars.2020.00024 PDF

Haëntjens, N., & Boss, E. (2020). Inlinino: A Modular Software Data Logger for Oceanography. Oceanography, 33(1), 80–84. https://doi.org/10.5670/oceanog.2020.112 PDF

Haëntjens, N., Della Penna, A., Briggs, N., Karp‐Boss, L., Gaube, P., Claustre, H., & Boss, E. (2020). Detecting Mesopelagic Organisms Using Biogeochemical‐Argo Floats. Geophysical Research Letters, 47(6). https://doi.org/10.1029/2019GL086088 PDF

Schulien, J. A., Della Penna, A., Gaube, P., Chase, A. P., Haëntjens, N., Graff, J. R., Hair, J. W., Hostetler, C. A., Scarino, A. J., Boss, E. S., Karp-Boss, L., & Behrenfeld, M. J. (2020). Shifts in Phytoplankton Community Structure Across an Anticyclonic Eddy Revealed From High Spectral Resolution Lidar Scattering Measurements. Frontiers in Marine Science, 7, 493. https://doi.org/10.3389/fmars.2020.00493 PDF

Yang, B., Boss, E. S., Haëntjens, N., Long, M. C., Behrenfeld, M. J., Eveleth, R., & Doney, S. C. (2020). Phytoplankton Phenology in the North Atlantic: Insights From Profiling Float Measurements. Frontiers in Marine Science, 7, 139. https://doi.org/10.3389/fmars.2020.00139 PDF

Boss, E., Haëntjens, N., Ackleson, S. G., Balch, B., Chase, A., Dall’Olmo, G., Freeman, S., Liu, Y., Loftin, J., Neary, W., Nelson, N., Novak, M., Slade, W. H., Proctor, C., Tortell, P., & Westberry, T. K. (2019). IOCCG Ocean Optics and Biogeochemistry Protocols for Satellite Ocean Colour Sensor Validation Inherent Optical Property Measurements and Protocols: Best Practices for the Collection and Processing of Ship-Based Underway Flow-Through Optical Data (v4. 0): Vol. 4.0 (A. R. Neeley & A. Mannino, Eds.). OCCG Protocol Series. http://doi.org/10.25607/OBP-664 PDF

Gorsky, G., Bourdin, G., Lombard, F., Pedrotti, M. L., Audrain, S., Bin, N., Boss, E., Bowler, C., Cassar, N., Caudan, L., Chabot, G., Cohen, N. R., Cron, D., De Vargas, C., Dolan, J. R., Douville, E., Elineau, A., Flores, J. M., Ghiglione, J. F., Haëntjens, N., … Karsenti, E. (2019). Expanding Tara Oceans Protocols for Underway, Ecosystemic Sampling of the Ocean-Atmosphere Interface During Tara Pacific Expedition (2016–2018). Frontiers in Marine Science, 6, 750. https://doi.org/10.3389/fmars.2019.00750 PDF

Saliba, G., Chen, C.-L., Lewis, S., Russell, L. M., Rivellini, L.-H., Lee, A. K. Y., Quinn, P. K., Bates, T. S., Haëntjens, N., Boss, E. S., Karp-Boss, L., Baetge, N., Carlson, C. A., & Behrenfeld, M. J. (2019). Factors driving the seasonal and hourly variability of sea-spray aerosol number in the North Atlantic. Proceedings of the National Academy of Sciences, 116(41), 20309–20314. https://doi.org/10.1073/pnas.1907574116 PDF

Arteaga, L., Haëntjens, N., Boss, E., Johnson, K. S., & Sarmiento, J. L. (2018). Assessment of Export Efficiency Equations in the Southern Ocean Applied to Satellite‐Based Net Primary Production. Journal of Geophysical Research: Oceans, 123(4), 2945–2964. https://doi.org/10.1002/2018JC013787 PDF

Boss, E., Haëntjens, N., Westberry, T. K., Karp-Boss, L., & Slade, W. H. (2018). Validation of the particle size distribution obtained with the laser in-situ scattering and transmission (LISST) meter in flow-through mode. Optics Express, 26(9), 11125. https://doi.org/10.1364/OE.26.011125 PDF

Haëntjens, N., Boss, E., & Talley, L. D. (2017). Revisiting Ocean Color algorithms for chlorophyll a and particulate organic carbon in the Southern Ocean using biogeochemical floats. Journal of Geophysical Research: Oceans, 122(8), 6583–6593. https://doi.org/10.1002/2017JC012844 PDF

Johnson, K. S., Plant, J. N., Coletti, L. J., Jannasch, H. W., Sakamoto, C. M., Riser, S. C., Swift, D. D., Williams, N. L., Boss, E., Haëntjens, N., Talley, L. D., & Sarmiento, J. L. (2017). Biogeochemical sensor performance in the SOCCOM profiling float array. Journal of Geophysical Research: Oceans, 122(8), 6416–6436. https://doi.org/10.1002/2017JC012838 PDF

Roesler, C., Uitz, J., Claustre, H., Boss, E., Xing, X., Organelli, E., Briggs, N., Bricaud, A., Schmechtig, C., Poteau, A., D’Ortenzio, F., Ras, J., Drapeau, S., Haëntjens, N., & Barbieux, M. (2017). Recommendations for obtaining unbiased chlorophyll estimates from in situ chlorophyll fluorometers: A global analysis of WET Labs ECO sensors: Unbiased chlorophyll from in situ fluorometers. Limnology and Oceanography: Methods, 15(6), 572–585. https://doi.org/10.1002/lom3.10185 PDF

Gerbi, G. P., Boss, E., Werdell, P. J., Proctor, C. W., Haëntjens, N., Lewis, M. R., Brown, K., Sorrentino, D., Zaneveld, J. R. V., Barnard, A. H., Koegler, J., Fargher, H., DeDonato, M., & Wallace, W. (2016). Validation of Ocean Color Remote Sensing Reflectance Using Autonomous Floats. Journal of Atmospheric and Oceanic Technology, 33(11), 2331–2352.https://doi.org/10.1175/JTECH-D-16-0067.1 PDF