Dr. Jeremy Werdell

Dr. Jeremy Werdell

  • RESEARCH AST, OCEANOGRAPHIC STUDIES
  • 301.286.1440 | 301.286.0268
  • NASA/GSFC
  • Mail Code: 616.2
  • Greenbelt , MD 20771
  • Employer: NASA
  • Brief Bio

    Jeremy Werdell is an Oceanographer in the Ocean Ecology Laboratory (OEL) at NASA Goddard Space Flight Center (GSFC) and the Project Scientist for the upcoming PACE mission. He received his Bachelors of Arts in Biology and in Environmental Science from the University of Virginia in 1996, his Masters of Science in Oceanography from the University of Connecticut in 1998, and his Doctor of Philosophy from the University of Maine in 2014. Dr. Werdell has worked in the OEL Ocean Biology Processing Group since 1999, where he now serves as a senior leader of several tasks. He currently leads the SeaWiFS Bio-optical Archive and Storage System (SeaBASS), NASA bio-Optical Marine Algorithm Data set (NOMAD), and in-water bio-optical algorithm development efforts. His research interests extend to the on-orbit calibration of ocean color satellite instruments, the validation of remotely-sensed data products, the collection and analysis of in situ biogeochemical oceanographic measurements, and the assimilation of the above to study how the global ocean and various regional ecosystems are changing with time. When time permits, Dr. Werdell moonlights as a teacher and student mentor. He has led several internationally attended workshops on bio-optical algorithm development and helped instruct undergraduate and graduate-level courses on ocean optics and biology. Dr. Werdell also provides routine technical advice to the OEL Field Support Group, an entity at GSFC with responsibility for participating in oceanographic field campaigns, conducting laboratory experiments, and revising protocol standards for field and laboratory data collection. Dr. Werdell is a member of several domestic and international science teams, including the IOCCG Intercomparison of Retrieval Algorithms for Coastal Waters Working Group, the IOCCG Harmful Algal Bloom Working Group, and the IOCCG Uncertainties in Ocean Colour Remote Sensing Working Group.

    Positions/Employment

    2/2015 - Present

    PACE Project Scientist

    NASA Goddard Space Flight Center, NASA Goddard Space Flight Center  
    3/2012 - Present

    Research Oceanographer

    NASA Goddard Space Flight Center, NASA Goddard Space Flight Center
    6/1999 - 3/2012

    Lead Research Scientist

    Science Systems and Applications, Inc., On-site contractor at NASA Goddard Space Flight Center

    Teaching Experience

    Instructor, "Calibration and Validation for Ocean Color Remote Sensing"
    University of Maine Ira C. Darling Marine Center, Walpole, ME
    4-week graduate-level course in optical oceanography
    Jul 2011, Jul 2013, Jul 2015, Jul 2017

    Instructor, "Vernon Bermuda Workshop"
    Bermuda Institute for Ocean Sciences, St. George's Bermuda
    1-week high school-level course in subtropical ecology
    2003 to present

    Adjunct Instructor, "Introduction to Marine Sciences"
    Three Rivers Community-Technical College, Norwich, CT
    3-credit undergraduate-level course in oceanography
    Spring semester 1999
     

    Education

    Ph.D., Oceanography, 2014
    University of Maine, Orono, ME

    M.S., Oceanography, 1998
    University of Connecticut, Storrs, CT

    B.A., Biology, Environmental Science, 1996
    University of Virginia, Charlottesville, VA

    Publications

    Refereed

    Jeremy Werdell, P., L. I. McKinna, E. Boss, et al. S. G. Ackleson, S. E. Craig, W. W. Gregg, Z. Lee, S. Maritorena, C. S. Roesler, C. S. Rousseaux, D. Stramski, J. M. Sullivan, M. S. Twardowski, M. Tzortziou, and X. Zhang. 2018. "An overview of approaches and challenges for retrieving marine inherent optical properties from ocean color remote sensing." Progress in Oceanography, 160: 186–212 [10.1016/j.pocean.2018.01.001]

    Seegers, B. N., R. P. Stumpf, B. A. Schaeffer, K. A. Loftin, and P. J. Werdell. 2018. "Performance metrics for the assessment of satellite data products: an ocean color case study." Optics Express, 26 (6): 7404 [10.1364/oe.26.007404]

    Gao, M., P.-W. Zhai, B. Franz, et al. Y. Hu, K. Knobelspiesse, P. J. Werdell, A. Ibrahim, F. Xu, and B. Cairns. 2018. "Retrieval of aerosol properties and water-leaving reflectance from multi-angular polarimetric measurements over coastal waters." Optics Express, 26 (7): 8968 [10.1364/oe.26.008968]

    Zhai, P.-W., Y. Hu, D. M. Winker, et al. B. A. Franz, J. Werdell, and E. Boss. 2017. "Vector radiative transfer model for coupled atmosphere and ocean systems including inelastic sources in ocean waters." Optics Express, 25 (8): A223 [10.1364/oe.25.00a223]

    Vandermeulen, R. A., A. Mannino, A. Neeley, J. Werdell, and R. Arnone. 2017. "Determining the optimal spectral sampling frequency and uncertainty thresholds for hyperspectral remote sensing of ocean color." Optics Express, 25 (16): A785 [10.1364/oe.25.00a785]

    Matsuoka, A., E. Boss, M. Babin, et al. L. Karp-Boss, M. Hafez, A. Chekalyuk, C. W. Proctor, P. J. Werdell, and A. Bricaud. 2017. "Pan-Arctic optical characteristics of colored dissolved organic matter: Tracing dissolved organic carbon in changing Arctic waters using satellite ocean color data." Remote Sensing of Environment, 200: 89-101 [10.1016/j.rse.2017.08.009]

    Valente, A., S. Sathyendranath, V. Brotas, et al. S. Groom, M. Grant, M. Taberner, D. Antoine, R. Arnone, W. M. Balch, K. Barker, R. Barlow, S. Bélanger, J.-F. Berthon, Ş. Beşiktepe, V. Brando, E. Canuti, F. Chavez, H. Claustre, R. Crout, R. Frouin, C. García-Soto, S. W. Gibb, R. Gould, S. Hooker, M. Kahru, H. Klein, S. Kratzer, H. Loisel, D. McKee, B. G. Mitchell, T. Moisan, F. Muller-Karger, L. O'Dowd, M. Ondrusek, A. J. Poulton, M. Repecaud, T. Smyth, H. M. Sosik, M. Twardowski, K. Voss, J. Werdell, M. Wernand, and G. Zibordi. 2016. "A compilation of global bio-optical in situ data for ocean-colour satellite applications." Earth System Science Data, 8 (1): 235-252 [10.5194/essd-8-235-2016]

    McKinna, L. I., J. Werdell, and C. W. Proctor. 2016. "Implementation of an analytical Raman scattering correction for satellite ocean-color processing." Opt. Express, 24 (14): A1123--A1137 [10.1364/OE.24.0A1123]

    Gerbi, G. P., E. Boss, P. J. Werdell, et al. C. W. Proctor, N. Haëntjens, M. R. Lewis, K. Brown, D. Sorrentino, J. R. Zaneveld, A. H. Barnard, J. Koegler, H. Fargher, M. DeDonato, and W. Wallace. 2016. "Validation of Ocean Color Remote Sensing Reflectance Using Autonomous Floats." Journal of Atmospheric and Oceanic Technology, 33 (11): 2331-2352 [10.1175/jtech-d-16-0067.1]

    Franz, B. A., S. W. Bailey, N. A. Kuring, and J. Werdell. 2015. "Ocean color measurements with the Operational Land Imager on Landsat-8: implementation and evaluation in SeaDAS." Journal of Applied Remote Sensing, 9 (1): 096070 [10.1117/I.JRS.9.096070]

    McKinna, L. I., P. Fearns, S. Weeks, et al. J. Werdell, M. Reichstetter, B. A. Franz, D. M. Shea, and G. C. Feldman. 2015. "A semianalytical ocean color inversion algorithm with explicit water column depth and substrate reflectance parameterization." Journal of Geophysical Research - Oceans, 120 (3): 1741-1770 [10.1002/ 2014JC010224]

    Brewin, R. J., S. Sathyendranath, D. Müller, et al. C. Brockmann, P.-Y. Deschamps, E. Devred, R. Doerffer, N. Fomferra, B. Franz, M. Grant, S. Groom, A. Horseman, C. Hu, H. Krasemann, Z. Lee, S. Maritorena, F. Mélin, M. Peters, T. Platt, P. Regner, T. Smyth, F. Steinmetz, J. Swinton, J. Werdell, and G. N. White. 2015. "The Ocean Colour Climate Change Initiative: III. A round-robin comparison on in-water bio-optical algorithms." Remote Sensing of Environment, 162: 271-294 [10.1016/j.rse.2013.09.016]

    Franz, B. A., M. Behrenfeld, D. Siegel, and P. J. Werdell. 2015. "Global Ocean Phytoplankton [in State of the Climate in 2014] ." Bulletin of the American Meteorological Society, 96 (7): S85-S87 [10.1175/2015BAMSStateoftheClimate.1]

    Chaves, J. E., J. Werdell, C. W. Proctor, et al. A. R. Neeley, S. A. Freeman, C. S. Thomas, and S. B. Hooker. 2015. "Assessment of ocean color data records from MODIS-Aqua in the western Arctic Ocean." Deep Sea Research Part II: Topical Studies in Oceanography, 118 (Part A): 32-43 [10.1016/j.dsr2.2015.02.011]

    Nechad, B., K. Ruddick, T. Schroeder, et al. K. Oubelkheir, D. Blondeau-Patissier, N. Cherukuru, V. Brando, A. Dekker, L. Clementson, A. C. Banks, S. Maritorena, P. J. Werdell, C. Sá, V. Brotas, I. Caballero de Frutos, Y.-H. Ahn, S. Salama, G. Tilstone, V. Martinez-Vicente, D. Foley, M. McKibben, J. Nahorniak, T. Peterson, A. Siliò-Calzada, R. Röttgers, Z. Lee, M. Peters, and C. Brockmann. 2015. "CoastColour Round Robin data sets: a database to evaluate the performance of algorithms for the retrieval of water quality parameters in coastal waters." Earth System Science Data, 7 (2): 319-348 [10.5194/essd-7-319-2015]

    Franz, B. A., M. J. Behrenfeld, D. A. Siegel, and J. Werdell. 2014. "Global Ocean Phytoplankton [in "State of the Climate in 2013"]." Bulletin of the American Meteorological Society, 95 (7): 578-580 [10.1175/2014BAMSStateoftheClimate.1]

    Werdell, P. J., C. S. Roesler, and J. I. Goes. 2014. "Discrimination of phytoplankton functional groups using an ocean reflectance inversion model." Applied Optics, 53 (22): 4833-4849 [10.1364/AO.53.004833]

    Thibodeau, P. S., C. S. Roesler, S. L. Drapeau, et al. S. P. Matondkar, J. I. Goes, and P. J. Werdell. 2014. "Locating Noctiluca miliaris in the Arabian Sea: An optical proxy approach." Limnology and Oceanography, 59: 2042-2056 [doi:10.4319/lo.2014.59.6.2042]

    Werdell, P., C. Proctor, E. Boss, T. Leeuw, and M. Ouhssain. 2013. "Underway sampling of marine inherent optical properties on the Tara Oceans expedition as a novel resource for ocean color satellite data product validation." Methods in Oceanography, 7: 40-51 [10.1016/j.mio.2013.09.001]

    Werdell, P. J., B. A. Franz, J. T. Lefler, W. D. Robinson, and E. Boss. 2013. "Retrieving marine inherent optical properties from satellites using temperature and salinity-dependent backscattering by seawater." Opt. Express, 21 (26): 32,611-32,622 [10.1364/OE.21.032611]

    Siegel, D. A., B. Behrenfeld, S. Maritorena, et al. C. McClain, D. Antoine, S. Bailey, P. Bontempi, E. Boss, H. Dierssen, S. Doney, R. Eplee, R. Evans, G. Feldman, E. Fields, B. Franz, N. Kuring, C. Mengelt, R. Nelson, F. Patt, W. Robinson, J. Sarmiento, C. Swan, P. Werdell, T. Westberry, J. Wilding, and J. Yoder. 2013. "Regional to global assessments of phytoplankton dynamics from the SeaWiFS mission." Remote Sensing of Environment, 135: 77-91 [10.1016/j.rse.2013.03.025]

    Werdell, P. J., B. A. Franz, S. W. Bailey, et al. G. Feldman, E. Boss, V. E. Brando, M. Dowell, T. Hirata, S. J. Lavender, Z. Lee, H. Loisel, S. Maritorena, F. Mélin, T. S. Moore, T. J. Smyth, D. Antoine, E. Devred, O. H. d'Andon, and A. Mangin. 2013. "Generalized ocean color inversion model for retrieving marine inherent optical properties." Applied Optics, 52 (10): 2019-2037 [10.1364/AO.52.002019]

    Franz, B. A., M. J. Behrenfeld, D. A. Siegel, and P. J. Werdell. 2013. "Global Ocean Phytoplankton." Bulletin of the American Meteorological Society, State of the Climate: 575-578.

    Weeks, S., P. Werdell, B. Schaffelke, et al. M. Canto, Z. Lee, J. Wilding, and G. Feldman. 2012. "Satellite-Derived Photic Depth on the Great Barrier Reef: Spatio-Temporal Patterns of Water Clarity." Remote Sensing, 4 (12): 3781-3795 [10.3390/rs4123781]

    Salama, M., R. Velde, H. Woerd, et al. J. Kromkamp, C. Philippart, A. Joseph, P. O'Neill, R. Lang, T. Gish, P. Werdell, and Z. Su. 2012. "Technical Note: Calibration and validation of geophysical observation models." Biogeosciences, 9 (6): 2195–2201 [10.5194/bg-9-2195-2012]

    Sauer, M., C. Roesler, P. J. Werdell, and A. Barnard. 2012. "Under the hood of satellite empirical chlorophyll a algorithms: revealing the dependencies of maximum band ratio algorithms on inherent optical properties." Opt. Express, 20 (19): 20920 [10.1364/OE.20.020920]

    Szeto, M., P. Werdell, T. Moore, and J. Campbell. 2011. "Are the world's oceans optically different?" J. Geophys. Res., 116: C00H04 [10.1029/2011JC007230]

    Werdell, P. J., B. A. Franz, and S. W. Bailey. 2010. "Evaluation of shortwave infrared atmospheric correction for ocean color remote sensing of Chesapeake Bay." Remote Sensing of Environment, 114 (10): 2238-2247 [10.1016/j.rse.2010.04.027]

    Lee, Z., R. Arnone, C. Hu, P. Werdell, and B. Lubac. 2010. "Uncertainties of optical parameters and their propagations in an analytical ocean color inversion algorithm." Appl Opt, 49: 369-381.

    Ahmad, Z., B. A. Franz, C. R. Mc Clain, et al. E. J. Kwiatkowska, P. J. Werdell, E. P. Shettle, and B. N. Holben. 2010. "New aerosol models for the retrieval of aerosol optical thickness and normalized water-leaving radiances from the SeaWiFS and MODIS sensors over coastal regions and open oceans." Applied Optics, 49 (29): 5545 [10.1364/AO.49.005545]

    Bailey, S. W., B. A. Franz, and P. J. Werdell. 2010. "Estimation of near-infrared water-leaving reflectance for satellite ocean color data processing." Optics Express, 7521-7527:

    Werdell, P. J., S. W. Bailey, L. W. Franz, et al. L. W. Franz, L. W. Franz, G. Feldman, and C. R. Mc Clain. 2009. "Regional and seasonal variability of chlorophyll-a in Chesapeake Bay as observed by SeaWiFS and MODIS-Aqua." Remote Sensing of Environment, 113 (6): 1319-1330 [10.1016/j.rse.2009.02.012]

    Werdell, P. J. 2009. "Global Bio-optical Algorithms for Ocean Color Satellite Applications: Inherent Optical Properties Algorithm Workshop at Ocean Optics XIX; Barga, Italy, 3–4 October 2008." Eos, Transactions American Geophysical Union, 90 (1): 4 [10.1029/2009EO010005]

    Bailey, S. W., S. B. Hooker, A. David, B. A. Franz, and P. J. Werdell. 2008. "Sources and assumptions for the vicarious calibration of ocean color satellite observations." Applied Optics, 47 (12): 2035 [10.1364/AO.47.002035]

    Brown, C., Y. Huot, P. J. Werdell, B. Gentili, and H. Claustre. 2008. "The origin and global distribution of second order variability in satellite ocean color and its potential applications to algorithm development." Remote Sensing of Environment, 112 (12): 4186-4203 [10.1016/j.rse.2008.06.008]

    Werdell, P. J., S. W. Bailey, B. A. Franz, A. Morel, and C. R. Mc Clain. 2007. "On-orbit vicarious calibration of ocean color sensors using an ocean surface reflectance model." Applied Optics, 46 (23): 5649 [10.1364/AO.46.005649]

    Morel, A., Y. Huot, B. Gentili, et al. P. J. Werdell, S. Hooker, and B. A. Franz. 2007. "Examining the consistency of products derived from various ocean color sensors in open ocean (Case 1) waters in the prespective of multi-sensor approach." Remote Sens Environ, 111: 69-88.

    Franz, B. A., S. W. Bailey, P. J. Werdell, and C. R. McClain. 2007. "Sensor-independent approach to the vicarious calibration of satellite ocean color radiometry." Appl Opt, 46 (22): 5068-5082.

    Bailey, S. W., and P. J. Werdell. 2006. "A multi-sensor approach for the on-orbit validation of ocean color satellite data products." Remote Sens Environ, 102: 12-23 [10.1016/j.rse.2006.01.015]

    Werdell, J., and S. W. Bailey. 2005. "An improved in-situ bio-optical data set for ocean color algorithm development and satellite data product validation." Remote Sens Environ, 98: 122-140 [10.1016/j.rse.2005.07.001]

    Werdell, P. J., S. W. Bailey, G. Fargion, et al. C. Pietras, K. D. Knobelspiesse, G. Feldman, and C. McClain. 2003. "Unique data repository facilitates ocean color satellite validation." Eos, Transactions American Geophysical Union, 84 (38): 377 [10.1029/2003EO380001]

    Frouin, R., B. A. Franz, and P. Werdell. 2003. "The SeaWiFS PAR Product." NASA/TM 2003--206892, Vol 22, NASA Goddard Space Flight Center, Greenbelt, Maryland, 46-50.

    Werdell, P., and C. S. Roesler. 2003. "Remote assessment of benthic substrate composition in shallow waters using multispectral reflectance." Limnology and Oceanography, 48 (1, part 2): 557-567.

    Eplee, R. E., W. D. Robinson, S. W. Bailey, et al. D. K. Clark, J. Werdell, M. Wang, R. A. Barnes, and C. R. McClain. 2001. "Calibration of SeaWiFS. II. Vicarious techniques." Applied Optics, 40 (36): 6701-6718 [10.1364/AO.40.006701]

    Non-Refereed

    Boss, E., C. W. Proctor, P. J. Werdell, et al. A. Chase, T. Leeuw, L. Karp-Boss, A. Matsuoka, M. Babin, M. Picheral, C. Marec, and G. Becu. 2014. "Remote sensing of IOPs in the Arctic Ocean using the GIOP framework." Proc. Ocean Optics XXII

    Franz, B. A., S. W. Bailey, N. Kuring, and P. J. Werdell. 2014. "Ocean Color Measurements from Landsat-8 OLI using SeaDAS." Proc. Ocean Optics XXII

    Chaves Cedeno, J. E., P. J. Werdell, C. W. Proctor, et al. A. R. Neeley, S. A. Freeman, C. S. Thomas, and S. B. Hooker. 2014. "Assessment of ocean color data records from MODIS-Aqua in the western Arctic Ocean." Proc. Ocean Optics XXII

    McKinna, L. I., P. J. Werdell, P. R. Fearns, et al. S. J. Weeks, M. Reichstetter, B. A. Franz, S. W. Bailey, D. M. Shea, and G. Feldman. 2014. "SWIM: a semi-analytical ocean color inversion algorithm for optically shallow waters." Proc. Ocean Optics XXII

    Proctor, C. W., J. T. Lefler, P. J. Werdell, and S. W. Bailey. 2014. "The SeaBASS validation system: redesigned tools and online resources for ocean color satellite match-ups." Proc. Ocean Optics XXII

    Werdell, P. J., C. S. Roesler, and J. I. Goes. 2014. "Remotely searching for Noctiluca miliaris in the Arabian Sea." Proc. Ocean Optics XXII

    Franz, B. A., S. W. Bailey, G. Meister, and P. J. Werdell. 2012. "Quality and Consistency of the NASA Ocean Color Data Record." Proc. Ocean Optics XXI

    Werdell, P. J., C. S. Roesler, and J. I. Goes. 2012. "Sensitivity of ocean reflectance inversion models for identifying and discriminating between phytoplankton functional groups." Proc. Ocean Optics XXI

    Meister, G., C. R. Mc Clain, Z. Ahmad, et al. S. W. Bailey, R. A. Barnes, S. Brown, G. E. Eplee, B. A. Franz, A. Holmes, W. B. Monosmith, F. S. Patt, R. P. Stumpf, K. R. Turpie, and P. J. Werdell. 2011. "Requirements for an Advanced Ocean Radiometer ." NASA Tech Memo 37:

    Franz, B. A., and P. J. Werdell. 2010. "A Generalized Framework for Modeling of Inherent Optical Properties in Ocean Remote Sensing Applications." Proc. Ocean Optics XX

    Werdell, J., B. A. Franz, S. W. Bailey, L. W. Harding Jr., and G. C. Feldman. 2007. "Approach for the long-term spatial and temporal evaluation of ocean color satelliet data products in a coastal environment." Proc. SPIE Int. Soc. Opt. Eng 6680: 12 pp [10.1117/12.732489]

    Franz, B. A., P. J. Werdell, G. Meister, et al. E. J. Kwiatkowska, S. W. Bailey, Z. Ahmad, and C. R. Mc Clain. 2006. "MODIS Land Bands for Ocean Remote Sensing Applications." Proc. Ocean Optics XVIII

    Werdell, P. J., B. A. Franz, S. W. Bailey, and C. R. McClain. 2006. "Recent Advances in the Operational Vicarious Calibration of Visible and Near- infrared Ocean Color Satellite Radiometry." Proc. Ocean Optics XVIII

    Franz, B. A., P. Werdell, G. Meister, et al. S. W. Bailey, R. E. Eplee Jr, G. C. Feldman, E. Kwiatkowska, C. R. Mcclain, F. Patt, and D. Thomas. 2005. "The continuity of ocean color measurements from SeaWiFS to MODIS." Proc SPIE Int Soc Opt Eng 5882: San Diego, California, 304-316.

    Werdell, J., and S. W. Bailey. 2003. "Overview of SeaBASS and MODIS Validation Activity." NASA/TM-2003 NASA Goddard Space Flight Center, Greenbelt, Maryland, 35-40.

    Franz, B. A., F. Patt, R. A. Barnes, et al. R. E. Eplee Jr, J. E. O'Reilly, W. Robinson, G. C. Feldman, S. W. Bailey, J. Gales, J. Werdell, M. Wang, R. Frouin, R. P. Stumpf, R. A. Arnone, R. W. Gould Jr, P. M. Martinolich, V. Ransibrahmanakul, and J. A. Yoder. 2003. "Algorithm Updates for the Fourth SeaWiFS Data Reprocessing." NASA/TM 2003-206892 22: NASA Goddard Space Flight Center, Greenbelt, Maryland, 74 pp.

    Fargion, G., B. A. Franz, E. Kwiatkowska, et al. C. Pietras, S. W. Bailey, J. Gales, G. Meister, K. Knobelspiesse, J. Werdell, and C. R. Mcclain. 2003. "SIMBIOS Program in Support of Ocean Color Missions: 1997-2003." Proc SPIE Int Soc Opt Eng 5155: San Diego, CA, 49-60.

    Fargion, G., B. A. Franz, E. Kwiatkowska, et al. C. Pietras, S. W. Bailey, J. Gales, G. Meister, K. Knobelspiesse, J. Werdell, C. R. Mc Clain, and G. Feldman. 2003. "SIMBIOS Project Data Processing and Analysis Results." NASA/TM-2003-211622 NASA Goddard Space Flight Center, Greenbelt, Maryland, 11841.

    Eplee, R., R. A. Barnes, S. W. Bailey, and P. J. Werdell. 2003. "Changes to the Vicarious Calibration of SeaWiFS." NASA/TM 2003-206892, Vol 22 NASA Goddard Space Flight Center, Greenbelt, Maryland, 20-25.

    Robinson, W., B. A. Franz, F. Patt, S. W. Bailey, and P. J. Werdell. 2003. "Masks and Flags Updates." NASA/TM 2003--206892, Vol 22 NASA Goddard Space Flight Center, Greenbelt, Maryland, 34-40.

    Mueller, J. L., C. Pietras, S. B. Hooker, et al. D. K. Clark, A. Morel, R. Frouin, B. G. Mitchell, R. R. Bidigare, C. Trees, J. Werdell, G. S. Fargion, R. Arnone, R. W. Austin, S. W. Bailey, W. Broenkow, S. W. Brown, K. Carder, C. Davis, J. Dore, M. Feinholz, S. Flora, Z. P. Lee, B. N. Holben, B. C. Johnson, M. Kahru, D. M. Karl, Y. S. Kim, K. D. Knobelspiesse, C. R. Mc Clain, S. McLean, M. Miller, C. D. Mobley, J. Porter, R. G. Steward, M. Stramska, L. Van Heukelem, K. Voss, J. Wieland, M. A. Yarbrough, and M. Yuen. 2002. "Ocean Optics Potocols for Satellite Ocean Color Sensor Validation." NASA Tech Memo 2002-210004, Rev 3, Vol 1 NASA Goddard Space Flight Center, Greenbelt, Maryland, iii-iv.

    Werdell, P. J., S. W. Bailey, and G. S. Fargion. 2002. "SeaBASS Data Protocols and Policy." NASA Tech Memo 2002-210004, Rev 3, Vol 2 NASA Goddard Space Flight Center, Greenbelt, Maryland, 284-287.

    Werdell, P., and S. W. Bailey. 2002. "The SeaWiFS Bio-Optical Archive and Storage System (SeaBASS): Current Architecture and Implementation, Introduction." NASA Tech Memo 2002-211617 NASA Goddard Space Flight Center, Greenbelt, Maryland, 1.

    Hsu, N.-Y. C., W. Robinson, S. W. Bailey, and P. Werdell. 2000. "The description of the SeaWiFS absorbing aerosol index." SeaWiFS NASA Technical Memorandum 2000-206892 10: 3-5.

    Brief Bio

    Jeremy Werdell is an Oceanographer in the Ocean Ecology Laboratory (OEL) at NASA Goddard Space Flight Center (GSFC) and the Project Scientist for the upcoming PACE mission. He received his Bachelors of Arts in Biology and in Environmental Science from the University of Virginia in 1996, his Masters of Science in Oceanography from the University of Connecticut in 1998, and his Doctor of Philosophy from the University of Maine in 2014. Dr. Werdell has worked in the OEL Ocean Biology Processing Group since 1999, where he now serves as a senior leader of several tasks. He currently leads the SeaWiFS Bio-optical Archive and Storage System (SeaBASS), NASA bio-Optical Marine Algorithm Data set (NOMAD), and in-water bio-optical algorithm development efforts. His research interests extend to the on-orbit calibration of ocean color satellite instruments, the validation of remotely-sensed data products, the collection and analysis of in situ biogeochemical oceanographic measurements, and the assimilation of the above to study how the global ocean and various regional ecosystems are changing with time. When time permits, Dr. Werdell moonlights as a teacher and student mentor. He has led several internationally attended workshops on bio-optical algorithm development and helped instruct undergraduate and graduate-level courses on ocean optics and biology. Dr. Werdell also provides routine technical advice to the OEL Field Support Group, an entity at GSFC with responsibility for participating in oceanographic field campaigns, conducting laboratory experiments, and revising protocol standards for field and laboratory data collection. Dr. Werdell is a member of several domestic and international science teams, including the IOCCG Intercomparison of Retrieval Algorithms for Coastal Waters Working Group, the IOCCG Harmful Algal Bloom Working Group, and the IOCCG Uncertainties in Ocean Colour Remote Sensing Working Group.

    Publications

    Refereed

    Jeremy Werdell, P., L. I. McKinna, E. Boss, et al. S. G. Ackleson, S. E. Craig, W. W. Gregg, Z. Lee, S. Maritorena, C. S. Roesler, C. S. Rousseaux, D. Stramski, J. M. Sullivan, M. S. Twardowski, M. Tzortziou, and X. Zhang. 2018. "An overview of approaches and challenges for retrieving marine inherent optical properties from ocean color remote sensing." Progress in Oceanography 160 186–212 [10.1016/j.pocean.2018.01.001]

    Seegers, B. N., R. P. Stumpf, B. A. Schaeffer, K. A. Loftin, and P. J. Werdell. 2018. "Performance metrics for the assessment of satellite data products: an ocean color case study." Optics Express 26 (6): 7404 [10.1364/oe.26.007404]

    Gao, M., P.-W. Zhai, B. Franz, et al. Y. Hu, K. Knobelspiesse, P. J. Werdell, A. Ibrahim, F. Xu, and B. Cairns. 2018. "Retrieval of aerosol properties and water-leaving reflectance from multi-angular polarimetric measurements over coastal waters." Optics Express 26 (7): 8968 [10.1364/oe.26.008968]

    Zhai, P.-W., Y. Hu, D. M. Winker, et al. B. A. Franz, J. Werdell, and E. Boss. 2017. "Vector radiative transfer model for coupled atmosphere and ocean systems including inelastic sources in ocean waters." Optics Express 25 (8): A223 [10.1364/oe.25.00a223]

    Vandermeulen, R. A., A. Mannino, A. Neeley, J. Werdell, and R. Arnone. 2017. "Determining the optimal spectral sampling frequency and uncertainty thresholds for hyperspectral remote sensing of ocean color." Optics Express 25 (16): A785 [10.1364/oe.25.00a785]

    Matsuoka, A., E. Boss, M. Babin, et al. L. Karp-Boss, M. Hafez, A. Chekalyuk, C. W. Proctor, P. J. Werdell, and A. Bricaud. 2017. "Pan-Arctic optical characteristics of colored dissolved organic matter: Tracing dissolved organic carbon in changing Arctic waters using satellite ocean color data." Remote Sensing of Environment 200 89-101 [10.1016/j.rse.2017.08.009]

    Valente, A., S. Sathyendranath, V. Brotas, et al. S. Groom, M. Grant, M. Taberner, D. Antoine, R. Arnone, W. M. Balch, K. Barker, R. Barlow, S. Bélanger, J.-F. Berthon, Ş. Beşiktepe, V. Brando, E. Canuti, F. Chavez, H. Claustre, R. Crout, R. Frouin, C. García-Soto, S. W. Gibb, R. Gould, S. Hooker, M. Kahru, H. Klein, S. Kratzer, H. Loisel, D. McKee, B. G. Mitchell, T. Moisan, F. Muller-Karger, L. O'Dowd, M. Ondrusek, A. J. Poulton, M. Repecaud, T. Smyth, H. M. Sosik, M. Twardowski, K. Voss, J. Werdell, M. Wernand, and G. Zibordi. 2016. "A compilation of global bio-optical in situ data for ocean-colour satellite applications." Earth System Science Data 8 (1): 235-252 [10.5194/essd-8-235-2016]

    McKinna, L. I., J. Werdell, and C. W. Proctor. 2016. "Implementation of an analytical Raman scattering correction for satellite ocean-color processing." Opt. Express 24 (14): A1123--A1137 [10.1364/OE.24.0A1123]

    Gerbi, G. P., E. Boss, P. J. Werdell, et al. C. W. Proctor, N. Haëntjens, M. R. Lewis, K. Brown, D. Sorrentino, J. R. Zaneveld, A. H. Barnard, J. Koegler, H. Fargher, M. DeDonato, and W. Wallace. 2016. "Validation of Ocean Color Remote Sensing Reflectance Using Autonomous Floats." Journal of Atmospheric and Oceanic Technology 33 (11): 2331-2352 [10.1175/jtech-d-16-0067.1]

    Franz, B. A., S. W. Bailey, N. A. Kuring, and J. Werdell. 2015. "Ocean color measurements with the Operational Land Imager on Landsat-8: implementation and evaluation in SeaDAS." Journal of Applied Remote Sensing 9 (1): 096070 [10.1117/I.JRS.9.096070]

    McKinna, L. I., P. Fearns, S. Weeks, et al. J. Werdell, M. Reichstetter, B. A. Franz, D. M. Shea, and G. C. Feldman. 2015. "A semianalytical ocean color inversion algorithm with explicit water column depth and substrate reflectance parameterization." Journal of Geophysical Research - Oceans 120 (3): 1741-1770 [10.1002/ 2014JC010224]

    Brewin, R. J., S. Sathyendranath, D. Müller, et al. C. Brockmann, P.-Y. Deschamps, E. Devred, R. Doerffer, N. Fomferra, B. Franz, M. Grant, S. Groom, A. Horseman, C. Hu, H. Krasemann, Z. Lee, S. Maritorena, F. Mélin, M. Peters, T. Platt, P. Regner, T. Smyth, F. Steinmetz, J. Swinton, J. Werdell, and G. N. White. 2015. "The Ocean Colour Climate Change Initiative: III. A round-robin comparison on in-water bio-optical algorithms." Remote Sensing of Environment 162 271-294 [10.1016/j.rse.2013.09.016]

    Franz, B. A., M. Behrenfeld, D. Siegel, and P. J. Werdell. 2015. "Global Ocean Phytoplankton [in State of the Climate in 2014] ." Bulletin of the American Meteorological Society 96 (7): S85-S87 [10.1175/2015BAMSStateoftheClimate.1]

    Chaves, J. E., J. Werdell, C. W. Proctor, et al. A. R. Neeley, S. A. Freeman, C. S. Thomas, and S. B. Hooker. 2015. "Assessment of ocean color data records from MODIS-Aqua in the western Arctic Ocean." Deep Sea Research Part II: Topical Studies in Oceanography 118 (Part A): 32-43 [10.1016/j.dsr2.2015.02.011]

    Nechad, B., K. Ruddick, T. Schroeder, et al. K. Oubelkheir, D. Blondeau-Patissier, N. Cherukuru, V. Brando, A. Dekker, L. Clementson, A. C. Banks, S. Maritorena, P. J. Werdell, C. Sá, V. Brotas, I. Caballero de Frutos, Y.-H. Ahn, S. Salama, G. Tilstone, V. Martinez-Vicente, D. Foley, M. McKibben, J. Nahorniak, T. Peterson, A. Siliò-Calzada, R. Röttgers, Z. Lee, M. Peters, and C. Brockmann. 2015. "CoastColour Round Robin data sets: a database to evaluate the performance of algorithms for the retrieval of water quality parameters in coastal waters." Earth System Science Data 7 (2): 319-348 [10.5194/essd-7-319-2015]

    Franz, B. A., M. J. Behrenfeld, D. A. Siegel, and J. Werdell. 2014. "Global Ocean Phytoplankton [in "State of the Climate in 2013"]." Bulletin of the American Meteorological Society 95 (7): 578-580 [10.1175/2014BAMSStateoftheClimate.1]

    Werdell, P. J., C. S. Roesler, and J. I. Goes. 2014. "Discrimination of phytoplankton functional groups using an ocean reflectance inversion model." Applied Optics 53 (22): 4833-4849 [10.1364/AO.53.004833]

    Thibodeau, P. S., C. S. Roesler, S. L. Drapeau, et al. S. P. Matondkar, J. I. Goes, and P. J. Werdell. 2014. "Locating Noctiluca miliaris in the Arabian Sea: An optical proxy approach." Limnology and Oceanography 59 2042-2056 [doi:10.4319/lo.2014.59.6.2042]

    Werdell, P., C. Proctor, E. Boss, T. Leeuw, and M. Ouhssain. 2013. "Underway sampling of marine inherent optical properties on the Tara Oceans expedition as a novel resource for ocean color satellite data product validation." Methods in Oceanography 7 40-51 [10.1016/j.mio.2013.09.001]

    Werdell, P. J., B. A. Franz, J. T. Lefler, W. D. Robinson, and E. Boss. 2013. "Retrieving marine inherent optical properties from satellites using temperature and salinity-dependent backscattering by seawater." Opt. Express 21 (26): 32,611-32,622 [10.1364/OE.21.032611]

    Siegel, D. A., B. Behrenfeld, S. Maritorena, et al. C. McClain, D. Antoine, S. Bailey, P. Bontempi, E. Boss, H. Dierssen, S. Doney, R. Eplee, R. Evans, G. Feldman, E. Fields, B. Franz, N. Kuring, C. Mengelt, R. Nelson, F. Patt, W. Robinson, J. Sarmiento, C. Swan, P. Werdell, T. Westberry, J. Wilding, and J. Yoder. 2013. "Regional to global assessments of phytoplankton dynamics from the SeaWiFS mission." Remote Sensing of Environment 135 77-91 [10.1016/j.rse.2013.03.025]

    Werdell, P. J., B. A. Franz, S. W. Bailey, et al. G. Feldman, E. Boss, V. E. Brando, M. Dowell, T. Hirata, S. J. Lavender, Z. Lee, H. Loisel, S. Maritorena, F. Mélin, T. S. Moore, T. J. Smyth, D. Antoine, E. Devred, O. H. d'Andon, and A. Mangin. 2013. "Generalized ocean color inversion model for retrieving marine inherent optical properties." Applied Optics 52 (10): 2019-2037 [10.1364/AO.52.002019]

    Franz, B. A., M. J. Behrenfeld, D. A. Siegel, and P. J. Werdell. 2013. "Global Ocean Phytoplankton." Bulletin of the American Meteorological Society State of the Climate 575-578

    Weeks, S., P. Werdell, B. Schaffelke, et al. M. Canto, Z. Lee, J. Wilding, and G. Feldman. 2012. "Satellite-Derived Photic Depth on the Great Barrier Reef: Spatio-Temporal Patterns of Water Clarity." Remote Sensing 4 (12): 3781-3795 [10.3390/rs4123781]

    Salama, M., R. Velde, H. Woerd, et al. J. Kromkamp, C. Philippart, A. Joseph, P. O'Neill, R. Lang, T. Gish, P. Werdell, and Z. Su. 2012. "Technical Note: Calibration and validation of geophysical observation models." Biogeosciences 9 (6): 2195–2201 [10.5194/bg-9-2195-2012]

    Sauer, M., C. Roesler, P. J. Werdell, and A. Barnard. 2012. "Under the hood of satellite empirical chlorophyll a algorithms: revealing the dependencies of maximum band ratio algorithms on inherent optical properties." Opt. Express 20 (19): 20920 [10.1364/OE.20.020920]

    Szeto, M., P. Werdell, T. Moore, and J. Campbell. 2011. "Are the world's oceans optically different?" J. Geophys. Res. 116 C00H04 [10.1029/2011JC007230]

    Werdell, P. J., B. A. Franz, and S. W. Bailey. 2010. "Evaluation of shortwave infrared atmospheric correction for ocean color remote sensing of Chesapeake Bay." Remote Sensing of Environment 114 (10): 2238-2247 [10.1016/j.rse.2010.04.027]

    Lee, Z., R. Arnone, C. Hu, P. Werdell, and B. Lubac. 2010. "Uncertainties of optical parameters and their propagations in an analytical ocean color inversion algorithm." Appl Opt 49 369-381

    Ahmad, Z., B. A. Franz, C. R. Mc Clain, et al. E. J. Kwiatkowska, P. J. Werdell, E. P. Shettle, and B. N. Holben. 2010. "New aerosol models for the retrieval of aerosol optical thickness and normalized water-leaving radiances from the SeaWiFS and MODIS sensors over coastal regions and open oceans." Applied Optics 49 (29): 5545 [10.1364/AO.49.005545]

    Bailey, S. W., B. A. Franz, and P. J. Werdell. 2010. "Estimation of near-infrared water-leaving reflectance for satellite ocean color data processing." Optics Express 7521-7527

    Werdell, P. J., S. W. Bailey, L. W. Franz, et al. L. W. Franz, L. W. Franz, G. Feldman, and C. R. Mc Clain. 2009. "Regional and seasonal variability of chlorophyll-a in Chesapeake Bay as observed by SeaWiFS and MODIS-Aqua." Remote Sensing of Environment 113 (6): 1319-1330 [10.1016/j.rse.2009.02.012]

    Werdell, P. J. 2009. "Global Bio-optical Algorithms for Ocean Color Satellite Applications: Inherent Optical Properties Algorithm Workshop at Ocean Optics XIX; Barga, Italy, 3–4 October 2008." Eos, Transactions American Geophysical Union 90 (1): 4 [10.1029/2009EO010005]

    Bailey, S. W., S. B. Hooker, A. David, B. A. Franz, and P. J. Werdell. 2008. "Sources and assumptions for the vicarious calibration of ocean color satellite observations." Applied Optics 47 (12): 2035 [10.1364/AO.47.002035]

    Brown, C., Y. Huot, P. J. Werdell, B. Gentili, and H. Claustre. 2008. "The origin and global distribution of second order variability in satellite ocean color and its potential applications to algorithm development." Remote Sensing of Environment 112 (12): 4186-4203 [10.1016/j.rse.2008.06.008]

    Werdell, P. J., S. W. Bailey, B. A. Franz, A. Morel, and C. R. Mc Clain. 2007. "On-orbit vicarious calibration of ocean color sensors using an ocean surface reflectance model." Applied Optics 46 (23): 5649 [10.1364/AO.46.005649]

    Morel, A., Y. Huot, B. Gentili, et al. P. J. Werdell, S. Hooker, and B. A. Franz. 2007. "Examining the consistency of products derived from various ocean color sensors in open ocean (Case 1) waters in the prespective of multi-sensor approach." Remote Sens Environ 111 69-88

    Franz, B. A., S. W. Bailey, P. J. Werdell, and C. R. McClain. 2007. "Sensor-independent approach to the vicarious calibration of satellite ocean color radiometry." Appl Opt 46 (22): 5068-5082

    Bailey, S. W., and P. J. Werdell. 2006. "A multi-sensor approach for the on-orbit validation of ocean color satellite data products." Remote Sens Environ 102 12-23 [10.1016/j.rse.2006.01.015]

    Werdell, J., and S. W. Bailey. 2005. "An improved in-situ bio-optical data set for ocean color algorithm development and satellite data product validation." Remote Sens Environ 98 122-140 [10.1016/j.rse.2005.07.001]

    Werdell, P. J., S. W. Bailey, G. Fargion, et al. C. Pietras, K. D. Knobelspiesse, G. Feldman, and C. McClain. 2003. "Unique data repository facilitates ocean color satellite validation." Eos, Transactions American Geophysical Union 84 (38): 377 [10.1029/2003EO380001]

    Frouin, R., B. A. Franz, and P. Werdell. 2003. "The SeaWiFS PAR Product." NASA/TM 2003--206892, Vol 22 46-50

    Werdell, P., and C. S. Roesler. 2003. "Remote assessment of benthic substrate composition in shallow waters using multispectral reflectance." Limnology and Oceanography 48 (1, part 2): 557-567

    Eplee, R. E., W. D. Robinson, S. W. Bailey, et al. D. K. Clark, J. Werdell, M. Wang, R. A. Barnes, and C. R. McClain. 2001. "Calibration of SeaWiFS. II. Vicarious techniques." Applied Optics 40 (36): 6701-6718 [10.1364/AO.40.006701]

    Non-Refereed

    Boss, E., C. W. Proctor, P. J. Werdell, et al. A. Chase, T. Leeuw, L. Karp-Boss, A. Matsuoka, M. Babin, M. Picheral, C. Marec, and G. Becu. 2014. "Remote sensing of IOPs in the Arctic Ocean using the GIOP framework." Proc. Ocean Optics XXII

    Franz, B. A., S. W. Bailey, N. Kuring, and P. J. Werdell. 2014. "Ocean Color Measurements from Landsat-8 OLI using SeaDAS." Proc. Ocean Optics XXII

    Chaves Cedeno, J. E., P. J. Werdell, C. W. Proctor, et al. A. R. Neeley, S. A. Freeman, C. S. Thomas, and S. B. Hooker. 2014. "Assessment of ocean color data records from MODIS-Aqua in the western Arctic Ocean." Proc. Ocean Optics XXII

    McKinna, L. I., P. J. Werdell, P. R. Fearns, et al. S. J. Weeks, M. Reichstetter, B. A. Franz, S. W. Bailey, D. M. Shea, and G. Feldman. 2014. "SWIM: a semi-analytical ocean color inversion algorithm for optically shallow waters." Proc. Ocean Optics XXII

    Proctor, C. W., J. T. Lefler, P. J. Werdell, and S. W. Bailey. 2014. "The SeaBASS validation system: redesigned tools and online resources for ocean color satellite match-ups." Proc. Ocean Optics XXII

    Werdell, P. J., C. S. Roesler, and J. I. Goes. 2014. "Remotely searching for Noctiluca miliaris in the Arabian Sea." Proc. Ocean Optics XXII

    Franz, B. A., S. W. Bailey, G. Meister, and P. J. Werdell. 2012. "Quality and Consistency of the NASA Ocean Color Data Record." Proc. Ocean Optics XXI

    Werdell, P. J., C. S. Roesler, and J. I. Goes. 2012. "Sensitivity of ocean reflectance inversion models for identifying and discriminating between phytoplankton functional groups." Proc. Ocean Optics XXI

    Meister, G., C. R. Mc Clain, Z. Ahmad, et al. S. W. Bailey, R. A. Barnes, S. Brown, G. E. Eplee, B. A. Franz, A. Holmes, W. B. Monosmith, F. S. Patt, R. P. Stumpf, K. R. Turpie, and P. J. Werdell. 2011. "Requirements for an Advanced Ocean Radiometer ." NASA Tech Memo 37

    Franz, B. A., and P. J. Werdell. 2010. "A Generalized Framework for Modeling of Inherent Optical Properties in Ocean Remote Sensing Applications." Proc. Ocean Optics XX

    Werdell, J., B. A. Franz, S. W. Bailey, L. W. Harding Jr., and G. C. Feldman. 2007. "Approach for the long-term spatial and temporal evaluation of ocean color satelliet data products in a coastal environment." Proc. SPIE Int. Soc. Opt. Eng 6680 12 pp [10.1117/12.732489]

    Franz, B. A., P. J. Werdell, G. Meister, et al. E. J. Kwiatkowska, S. W. Bailey, Z. Ahmad, and C. R. Mc Clain. 2006. "MODIS Land Bands for Ocean Remote Sensing Applications." Proc. Ocean Optics XVIII

    Werdell, P. J., B. A. Franz, S. W. Bailey, and C. R. McClain. 2006. "Recent Advances in the Operational Vicarious Calibration of Visible and Near- infrared Ocean Color Satellite Radiometry." Proc. Ocean Optics XVIII

    Franz, B. A., P. Werdell, G. Meister, et al. S. W. Bailey, R. E. Eplee Jr, G. C. Feldman, E. Kwiatkowska, C. R. Mcclain, F. Patt, and D. Thomas. 2005. "The continuity of ocean color measurements from SeaWiFS to MODIS." Proc SPIE Int Soc Opt Eng 5882 304-316

    Werdell, J., and S. W. Bailey. 2003. "Overview of SeaBASS and MODIS Validation Activity." NASA/TM-2003 35-40

    Franz, B. A., F. Patt, R. A. Barnes, et al. R. E. Eplee Jr, J. E. O'Reilly, W. Robinson, G. C. Feldman, S. W. Bailey, J. Gales, J. Werdell, M. Wang, R. Frouin, R. P. Stumpf, R. A. Arnone, R. W. Gould Jr, P. M. Martinolich, V. Ransibrahmanakul, and J. A. Yoder. 2003. "Algorithm Updates for the Fourth SeaWiFS Data Reprocessing." NASA/TM 2003-206892 22 74 pp

    Fargion, G., B. A. Franz, E. Kwiatkowska, et al. C. Pietras, S. W. Bailey, J. Gales, G. Meister, K. Knobelspiesse, J. Werdell, and C. R. Mcclain. 2003. "SIMBIOS Program in Support of Ocean Color Missions: 1997-2003." Proc SPIE Int Soc Opt Eng 5155 49-60

    Fargion, G., B. A. Franz, E. Kwiatkowska, et al. C. Pietras, S. W. Bailey, J. Gales, G. Meister, K. Knobelspiesse, J. Werdell, C. R. Mc Clain, and G. Feldman. 2003. "SIMBIOS Project Data Processing and Analysis Results." NASA/TM-2003-211622 11841

    Eplee, R., R. A. Barnes, S. W. Bailey, and P. J. Werdell. 2003. "Changes to the Vicarious Calibration of SeaWiFS." NASA/TM 2003-206892, Vol 22 20-25

    Robinson, W., B. A. Franz, F. Patt, S. W. Bailey, and P. J. Werdell. 2003. "Masks and Flags Updates." NASA/TM 2003--206892, Vol 22 34-40

    Mueller, J. L., C. Pietras, S. B. Hooker, et al. D. K. Clark, A. Morel, R. Frouin, B. G. Mitchell, R. R. Bidigare, C. Trees, J. Werdell, G. S. Fargion, R. Arnone, R. W. Austin, S. W. Bailey, W. Broenkow, S. W. Brown, K. Carder, C. Davis, J. Dore, M. Feinholz, S. Flora, Z. P. Lee, B. N. Holben, B. C. Johnson, M. Kahru, D. M. Karl, Y. S. Kim, K. D. Knobelspiesse, C. R. Mc Clain, S. McLean, M. Miller, C. D. Mobley, J. Porter, R. G. Steward, M. Stramska, L. Van Heukelem, K. Voss, J. Wieland, M. A. Yarbrough, and M. Yuen. 2002. "Ocean Optics Potocols for Satellite Ocean Color Sensor Validation." NASA Tech Memo 2002-210004, Rev 3, Vol 1 iii-iv

    Werdell, P. J., S. W. Bailey, and G. S. Fargion. 2002. "SeaBASS Data Protocols and Policy." NASA Tech Memo 2002-210004, Rev 3, Vol 2 284-287

    Werdell, P., and S. W. Bailey. 2002. "The SeaWiFS Bio-Optical Archive and Storage System (SeaBASS): Current Architecture and Implementation, Introduction." NASA Tech Memo 2002-211617 1

    Hsu, N.-Y. C., W. Robinson, S. W. Bailey, and P. Werdell. 2000. "The description of the SeaWiFS absorbing aerosol index." SeaWiFS NASA Technical Memorandum 2000-206892 10 3-5

                                                                                                                                                                                            
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