Brief Bio

Crystal Thomas has over 25 years of experience conducting HPLC pigment analysis for ocean color research and researching method improvements. Thomas's research interests include method development and quality assurance/quality control, particularly as they relate to identifying and minimizing sources of uncertainty in HPLC pigment measurements. Currently, she manages the activities of GSFC’s Ocean Ecology Laboratory HPLC pigment analysis program.

Positions/Employment

Teaching Experience

Classroom and laboratory instructor for short course, Phytoplankton Bio-Optical Variability in Coastal Systems. Taught students how to establish and maintain an HPLC pigment analysis laboratory, with emphasis on Quality Assurance/Quality Control. Sponsored by NF-POGO (Nippon Foundation-Partnership for Observation of the Global Oceans) and AWI-CofE (Alfred-Wegener Institute Center for Excellence), 19-23 January, 2015, Ensendada, Mexico 

Awards

Hydrospheric and Biospheric Sciences (HOBI) Award for Scientific/Technical Support (2015)

Selected Publications

Refereed

Neeley, A. R., M. W. Lomas, A. Mannino, C. Thomas, and R. Vandermeulen. 2022. "Impact of growth phase, pigment adaptation and climate change conditions on the cellular pigment and carbon content of fifty‐one phytoplankton isolates." Journal of Phycology, [10.1111/jpy.13279]

Valente, A., S. Sathyendranath, V. Brotas, et al. S. Groom, M. Grant, T. Jackson, A. Chuprin, M. Taberner, R. Airs, D. Antoine, R. Arnone, W. M. Balch, K. Barker, R. Barlow, S. Bélanger, J.-F. Berthon, Ş. Beşiktepe, Y. Borsheim, A. Bracher, V. Brando, R. J. Brewin, E. Canuti, F. P. Chavez, A. Cianca, H. Claustre, L. Clementson, R. Crout, A. Ferreira, S. Freeman, R. Frouin, C. García-Soto, S. W. Gibb, R. Goericke, R. Gould, N. Guillocheau, S. B. Hooker, C. Hu, M. Kahru, M. Kampel, H. Klein, S. Kratzer, R. Kudela, J. Ledesma, S. Lohrenz, H. Loisel, A. Mannino, V. Martinez-Vicente, P. Matrai, D. McKee, B. G. Mitchell, T. Moisan, E. Montes, F. Muller-Karger, A. Neeley, M. Novak, L. O'Dowd, M. Ondrusek, T. Platt, A. J. Poulton, M. Repecaud, R. Röttgers, T. Schroeder, T. Smyth, D. Smythe-Wright, H. M. Sosik, C. Thomas, R. Thomas, G. Tilstone, A. Tracana, M. Twardowski, V. Vellucci, K. Voss, J. Werdell, M. Wernand, B. Wojtasiewicz, S. Wright, and G. Zibordi. 2022. "A compilation of global bio-optical in situ data for ocean-colour satellite applications – version three." Earth System Science Data, [10.5194/essd-2022-159]

Catlett, D., D. Siegel, R. Simons, et al. N. Guillocheau, F. Henderikx-Freitas, and C. Thomas. 2021. "Diagnosing seasonal to multi-decadal phytoplankton group dynamics in a highly productive coastal ecosystem." Progress in Oceanography, 197: 102637 [10.1016/j.pocean.2021.102637]

Sahoo, S., S. K. Baliarsingh, A. A. Lotliker, et al. U. K. Pradhan, C. S. Thomas, and K. Sahu. 2017. "Effect of physico-chemical regimes and tropical cyclones on seasonal distribution of chlorophyll-a in the Chilika Lagoon, east coast of India." Environmental Monitoring and Assessment, 189 (4): 153 [10.1007/s10661-017-5850-5]

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]

Egeland, E. J., J. Garrido, L. Clementson, et al. K. Andresen, C. S. Thomas, M. Zapata, R. Airs, C. Llewellyn, G. Newman, R. Rodriguez, and S. Roy. 2011. "Part VII: Data sheets aiding identification of phytoplankton carotenoids and chlorophylls." Phytoplankton Pigments: Characterization, Chemotaxonomy, and Applications in Oceanography, Cambridge, New York: 665-674, ISBN: 978-1-107-00066-7. [10.1017/CBO9780511732263]

Neeley, A. R., C. S. Thomas, S. B. Hooker, and L. Van Heukelem. 2011. "HPLC instrument performance metrics and validation." Phytoplankton Pigments: Characterization, Chemotaxonomy, and Applications in Oceanography, New York: Cambridge University Press, 890, ISBN: 978-1-107-00066-7.

Claustre, H., S. B. Hooker, L. Van Heukelem, et al. J.-F. Berthon, R. Barlow, J. Ras, H. Sessions, C. Targa, C. S. Thomas, D. van der Linde, and J.-C. Marty. 2004. "An intercomparison of HPLC phytoplankton pigment methods using in situ samples: application to remote sensing and database activities." Marine Chem, 85 (1-2): 41-61 [10.1016/j.marchem.2003.09.002]

Van Heukelem, L., and C. Thomas. 2001. "Computer-assisted high-performance liquid chromatography method development with applications to the isolation and analysis of phytoplankton pigments." J. Chrom. A., 910: 31-49.

Non-Refereed

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

Hooker, S. B., L. Clementson, C. S. Thomas, et al. L. Schluter, M. Allerup, J. Ras, H. Claustre, C. Normandeau, J. Cullen, M. Kienast, W. Kozlowski, M. Vernet, S. Chakraborty, S. Lohrenz, M. Tuel, D. Redalje, P. Cartaxana, C. R. Mendes, V. Brotas, S. G. Matondkar, S. G. Parab, A. R. Neeley, and E. S. Egeland. 2012. "The Fifth SeaWiFS HPLC Analysis Round-Robin Experiment (SeaHARRE-5)." NASA Technical Memo. 2012-217503 NASA Goddard Space Flight Center, Greenbelt, Maryland, 98.

Hooker, S. B., C. S. Thomas, L. Van Heukelem, et al. L. Schluter, M. E. Russ, J. Ras, H. Claustre, L. Clementson, E. Canuti, J.-F. Berthon, J. Perl, C. Normandeau, J. Cullen, M. Kienast, and J. L. Pinckney. 2010. "The Fourth SeaWiFS HPLC Analysis Round-Robin Experiment (SeaHARRE-4)." NASA Technical Memo 2010-215857 NASA Goddard Space Flight Center, Greenbelt, Maryland, 75.

Hooker, S. B., L. Van Heukelem, C. S. Thomas, et al. H. Claustre, J. Ras, L. Schluter, L. Clementson, D. van der Linde, E. Eker-Develi, J.-F. Berthon, R. Barlow, H. Sessions, H. Ismail, and J. Perl. 2009. "The Third SeaWiFS HPLC Analysis Round-Robin Experiment (SeaHARRE-3)." NASA Technical Memo 2009-215849 NASA Goddard Space Flight Center, Greenbelt, Maryland, 97.

Hooker, S. B., V. Stuart, C. Trees, et al. J. Perl, L. Schlter, L. V. Heukelem, C. S. Thomas, R. Barlow, J. Ras, H. Claustre, H. Sessions, E. Head, L. Clementson, J. Fishwick, C. Llewellyn, and J. Aiken. 2005. "The Second SeaWiFS HPLC Analysis Round-Robin Experiment (SeaHARRE-2)." NASA Tech Memo 2005-212785 NASA Goddard Space Flight Center, Greenbelt, Maryland, 112 pp.

Talks, Presentations and Posters

Invited

Other