The University of Maine Maine In-situ Sound & Color Lab
School of Marine Sciences
 
Nils Haentjens
Nils Haëntjens
Postdoc, Oceanography
Email: nils.haentjens+www@maine.edu


Research Interest

Study the composition of the open ocean with optical measurements. Development of oceanographic instruments.

Education
  • PhD 2020, Oceanography, University of Maine, Orono, ME
  • MS 2017, Oceanography, University of Maine, Orono, ME
  • MS 2015, Embedded Systems Engineering, ISEP, Paris, France

Peer-Reviewed Scientific Articles
2021
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

2020
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

2019
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

2018
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

2017
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

2016
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
Released Software
  • Inlinino: Data logger for oceanographic instruments (e.g., ACS, HyperBB, LISST, BB3)
  • Inline-Analysis: Matlab software to process data from flow-through underway systems (e.g. ACS, BB3, LISST, WSCD, HyperBB, SUVF, TSG).
  • getOC: Command line utility to download Ocean Color images.
  • pySAS: Autonomous solar tracker for Satlantic HyperSAS.
  • HyperNAV analysis: Analysis in real-time of hyperspectral upwelling radiance profiles from HyperNAV system mounted on Navis floats.
  • pylr2: Linear regression type II for python.
  • MISCToolbox: Matlab Toolbox for Ocean Optics
  • ifcb-tools: Set of scripts and instructions to process data from the Imaging Flow CytoBot (IFCB)
  • FloatExplorer: Dashboard of NAAMES profilers (RUDICS server)
  • FloatProcess: Python package to process data from BGC-Argo floats in real-time

  The University of Maine
Orono, Maine 04469
(207) 581-­1110
Website last updated: 18-Mar-14