Sciences and Exploration Directorate

Bryan A Franz

(Assistant Chief for Science Research)

Bryan A Franz's Contact Card & Information.
Phone: 301.286.5429
Org Code: 616
Mail Code 616.2
Greenbelt, MD 20771

Missions & Projects

Brief Bio

Bryan Franz is a Research Scientist and Assistant Chief for Science Research in the Ocean Ecology Laboratory at NASA Goddard Space Flight Center. Since 1996, he has supported research and operations for satellite remote sensing of ocean biology and biogeochemistry at NASA. He currently serves as the Science Data Segment (SDS) Manager for the Plankton, Aerosol, Cloud, ocean Ecosystem (PACE) mission, which is responsible for science instrument operations and end to end data acquisition and science data processing for the OCI, HARP2, and SPEXone instruments on PACE. He also serves and Deputy Manager of the Ocean Biology Processing Group where he co-leads the assessment, refinement, and periodic reprocessing efforts for the production of consistent ocean biological and biogeochemical climate data records from the Sea-viewing Wide Field-of-view Sensor (SeaWiFS), Moderate Resolution Imaging Spectroradiometer (MODIS), Medium Resolution Imaging Spectrometer (MERIS), Visible and Infrared Imaging Radiometer Suite (VIIRS), Ocean Land Color Imager (OLCI), and other satellite-based remote sensing radiometers. His work at NASA has focused on standardization of atmospheric correction and bio-optical algorithms to derived consistent, multi-mission time-series of ocean optical and biogeochemical properties. He also contributes to the development of bio-optical inversion models for retrieval of marine inherent optical properties, vicarious calibration methods, and sensor cross-calibration techniques. He developed the processing software, vicarious calibration approach, and many of the validation and quality assessment methods used in the production of all global ocean color data products generated and distributed by NASA. Since 2009 he has served as the Ocean Discipline Leader for the MODIS Science Team and now the combined MODIS and VIIRS Science Team. Prior to his ocean color career, Bryan supported the calibration and scientific analysis of data from the DIRBE instrument on the Cosmic Background Explorer, including significant contributions to the modeling and removal of the radiometric signal from interplanetary dust to reveal the signature of primordial galaxies. 


Research Interests

Satellite remote sensing of ocean biology and biogeochemistry

Earth Science: Remote Sensing

Visible to near infrared remote sensing of the oceans to retrieve the spectral radiance exiting the ocean surface (ocean color) and derive the concentration of optically active constituents within the upper ocean euphotic zone. This involves instrument calibration, atmospheric radiative transfer, and bio-optical and atmospheric correction algorithm development and implementation, and science product validation.

Current Projects

Ocean Biology Processing Group (OBPG)

Data processing, distribution, calibration, software and algorithm development, and product assessment for a host of visible to infrared imagers on earth observing satellites, including VIIRS on SNPP and the JPSS series, MODIS on Terra and Aqua, OLCI on Sentinel 3a and 3b, MERIS, SeaWiFS, HICO, GOCI, OCTS, and CZCS.

Plankton, Aerosol, Cloud, ocean Ecosystems (PACE)

Remote Sensing

PACE launched in February 2024 carrying a hyperspectral instrument designed to measure ocean color, aerosol, and cloud properties (OCI), and two multi-angle polarimeters (HARP2 and SPEXone). The PACE Science Data Segment is responsible for instrument activity scheduling, data ingest, processing, quality control, and distribution of all science data products from PACE to the Distributed, Active Archive Center for public access.

Visible and Infrared Imaging Radiometer Suite (VIIRS)

Moderate Resolution Imaging Spectroradiometer (MODIS)



2024. "Anomalous trends in global ocean carbon concentrations following the 2022 eruptions of Hunga Tonga-Hunga Ha’apai." Communications Earth & Environment 5 (1): 247 [10.1038/s43247-024-01421-8] [Journal Article/Letter]

2024. "Spectral correlation in MODIS water-leaving reflectance retrieval uncertainty." Optics Express 32 (2): 2490 [10.1364/oe.502561] [Journal Article/Letter]

2023. "Simultaneous retrieval of aerosol and ocean properties from PACE HARP2 with uncertainty assessment using cascading neural network radiative transfer models." Atmospheric Measurement Techniques 16 (23): [] [Journal Article/Letter]

2023. "Calibration of the SNPP and NOAA 20 VIIRS sensors for continuity of the MODIS climate data records." Remote Sensing of Environment 295 113717 [10.1016/j.rse.2023.113717] [Journal Article/Letter]

2023. "Optimizing retrieval spaces of bio-optical models for remote sensing of ocean color." Applied Optics 62 (13): 3299 [10.1364/ao.484082] [Journal Article/Letter]

2023. "The impact and estimation of uncertainty correlation for multi-angle polarimetric remote sensing of aerosols and ocean color." Atmospheric Measurement Techniques 16 (8): 2067–2087 [] [Journal Article/Letter]

2022. "Instantaneous photosynthetically available radiation models for ocean waters using neural networks." Applied Optics 61 (33): 9985 [10.1364/ao.474914] [Journal Article/Letter]

2022. "Effective uncertainty quantification for multi-angle polarimetric aerosol remote sensing over ocean." Atmos. Meas. Tech. 15 (16): 4859–4879 [10.5194/amt-15-4859-2022] [Journal Article/Letter]

2022. "Estimating pixel-level uncertainty in ocean color retrievals from MODIS." Optics Express 30 (17): 31415 [10.1364/oe.460735] [Journal Article/Letter]

2022. "Genesis and Evolution of NASA’s Satellite Ocean Color Program." Frontiers in Remote Sensing 3 [10.3389/frsen.2022.938006] [Journal Article/Letter]

2022. "Optimal Estimation Framework for Ocean Color Atmospheric Correction and Pixel-level Uncertainty Quantification." Applied Optics Vol. 61 No. 20 [10.1364/ao.461861] [Journal Article/Letter]

2022. "Determining the Primary Sources of Uncertainty in Retrieval of Marine Remote Sensing Reflectance From Satellite Ocean Color Sensors." Frontiers in Remote Sensing 3 [10.3389/frsen.2022.857530] [Journal Article/Letter]

2022. "A Radiative Transfer Simulator for PACE: Theory and Applications." Frontiers in Remote Sensing 3 [10.3389/frsen.2022.840188] [Journal Article/Letter]

2021. "Adaptive Data Screening for Multi-Angle Polarimetric Aerosol and Ocean Color Remote Sensing Accelerated by Deep Learning." Frontiers in Remote Sensing 2 [10.3389/frsen.2021.757832] [Journal Article/Letter]

2021. "Global Oceans." Bulletin of the American Meteorological Society 102 (8): S143-S198 [10.1175/bams-d-21-0083.1] [Journal Article/Letter]

2021. "Cross-calibration of MODIS and VIIRS long near infrared bands for ocean color science and applications." Remote Sensing of Environment 260 112439 [10.1016/j.rse.2021.112439] [Journal Article/Letter]

2021. "Efficient multi-angle polarimetric inversion of aerosols and oceancolor powered by a deep neural network forward model." Atmospheric Measurement Techniques 14 (6): 4083–4110 [] [Journal Article/Letter]

2021. "Analysis of simultaneous aerosol and ocean glint retrieval using multi-angle observations." Atmospheric Measurement Techniques 14 3233-3252 [10.5194/amt-14-3233-2021] [Journal Article/Letter]

2021. "Atmospheric correction over the ocean for hyperspectral radiometers using multi-angle polarimetric retrievals." Optics Express 29 (3): 4504 [10.1364/oe.408467] [Journal Article/Letter]

2020. "State of the Climate in 2019: Global Oceans." Bulletin of the American Meteorological Society 101 (8): S129-S184 [10.1175/bams-d-20-0105.1] [Journal Article/Letter]

2020. "Inversion of multiangular polarimetric measurements from the ACEPOL campaign: an application of improving aerosol property and hyperspectral ocean color retrievals." Atmospheric Measurement Techniques 13 3939–3956 [10.5194/amt-13-3939-2020] [Journal Article/Letter]

2020. "Sensitivity of Satellite Ocean Color Data to System Vicarious Calibration of the Long Near Infrared Band." IEEE Transactions on Geoscience and Remote Sensing 59 (3): 2562-2578 [10.1109/tgrs.2020.3000475] [Journal Article/Letter]

2020. "Neural Network Reflectance Prediction Model for Both Open Ocean and Coastal Waters." Remote Sensing 12 (9): 1421 [10.3390/rs12091421] [Journal Article/Letter]

2019. "An Ocean-Colour Time Series for Use in Climate Studies: The Experience of the Ocean-Colour Climate Change Initiative (OC-CCI)." Sensors 19 (19): 4285 [10.3390/s19194285] [Journal Article/Letter]

2019. "MODIS Aqua Reflective Solar Band Calibration for NASA’s R2018 Ocean Color Products." Remote Sensing 11 (19): 2187 [10.3390/rs11192187] [Journal Article/Letter]

2019. "Satellite Ocean Colour: Current Status and Future Perspective." Frontiers in Marine Science 6 [10.3389/fmars.2019.00485] [Journal Article/Letter]

2019. "Atmospheric Correction of Satellite Ocean-Color Imagery During the PACE Era." Frontiers in Earth Science 7 [10.3389/feart.2019.00145] [Journal Article/Letter]

2019. "Retrieving Aerosol Characteristics From the PACE Mission, Part 2: Multi-Angle and Polarimetry." Frontiers in Environmental Science 7 [10.3389/fenvs.2019.00094] [Journal Article/Letter]

2019. "Retrieving Aerosol Characteristics From the PACE Mission, Part 1: Ocean Color Instrument." Frontiers in Earth Science 7 [10.3389/feart.2019.00152] [Journal Article/Letter]

2019. "Inversion of multi-angular polarimetric measurements over open and coastal ocean waters: a joint retrieval algorithm for aerosol and water leaving radiance properties." Atmospheric Measurement Techniques 12 (7): 3921–3941 [10.5194/amt-12-3921-2019] [Journal Article/Letter]

2019. "Multiband Atmospheric Correction Algorithm for Ocean Color Retrievals." Frontiers in Earth Science 7 [10.3389/feart.2019.00116] [Journal Article/Letter]

2019. "Going Beyond Standard Ocean Color Observations: Lidar and Polarimetry." Frontiers in Marine Science 6 [10.3389/fmars.2019.00251] [Journal Article/Letter]

2019. "The Plankton, Aerosol, Cloud, ocean Ecosystem (PACE) mission: Status, science, advances." Bulletin of the American Meteorological Society 100 (9): 1775–1794 [10.1175/bams-d-18-0056.1] [Journal Article/Letter]

2019. "Improving Satellite Global Chlorophyll a Data Products Through Algorithm Refinement and Data Recovery." Journal of Geophysical Research: Oceans 124 (3): 1524-1543 [10.1029/2019jc014941] [Journal Article/Letter]

2019. "Uncertainties in the Geostationary Ocean Color Imager (GOCI) Remote Sensing Reflectance for Assessing Diurnal Variability of Biogeochemical Processes." Remote Sensing 11 (3): 295 [10.3390/rs11030295] [Journal Article/Letter]

2019. "Vicarious calibration of GOCI for the SeaDAS ocean color retrieval." International Journal of Remote Sensing 40 (10): 3984-4001 [10.1080/01431161.2018.1557793] [Journal Article/Letter]

2018. "Toward Long-Term Aquatic Science Products from Heritage Landsat Missions." Remote Sensing 10 (9): 1337 [10.3390/rs10091337] [Journal Article/Letter]

2018. "Radiative Transfer Modeling of Phytoplankton Fluorescence Quenching Processes." Remote Sensing 10 (8): 1309 [10.3390/rs10081309] [Journal Article/Letter]

2018. "Global ocean phytoplankton [in State of the Climate in 2017]." Bulletin of the American Meteorological Society 99 (8): S94-S96 [Journal Article/Letter]

2018. "Global Water Clarity: Continuing a Century-Long Monitoring." Eos 99 [10.1029/2018eo097251] [Journal Article/Letter]

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] [Journal Article/Letter]

2018. "Satellite sensor requirements for monitoring essential biodiversity variables of coastal ecosystems." Ecological Applications 28 (3): 749-760 [10.1002/eap.1682] [Journal Article/Letter]

2018. "Satellite Radiation Products for Ocean Biology and Biogeochemistry: Needs, State-of-the-Art, Gaps, Development Priorities, and Opportunities." Frontiers in Marine Science 5 [10.3389/fmars.2018.00003] [Journal Article/Letter]

2018. "Atmospheric correction for hyperspectral ocean color retrieval with application to the Hyperspectral Imager for the Coastal Ocean (HICO)." Remote Sensing of Environment 204 60-75 [10.1016/j.rse.2017.10.041] [Journal Article/Letter]

2017. "Sentinel-2 MultiSpectral Instrument (MSI) data processing for aquatic science applications: Demonstrations and validations." Remote Sensing of Environment 201 47-56 [10.1016/j.rse.2017.08.033] [Journal Article/Letter]

2017. "Global trends in ocean phytoplankton: a new assessment using revised ocean colour data." Remote Sensing Letters 8 (12): 1102-1111 [10.1080/2150704x.2017.1354263] [Journal Article/Letter]

2017. "Water-leaving contribution to polarized radiation field over ocean." Optics Express 25 (16): A689 [10.1364/oe.25.00a689] [Journal Article/Letter]

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] [Journal Article/Letter]

2017. "Landsat 8 remote sensing reflectance (Rrs) products: Evaluations, intercomparisons, and enhancements." Remote Sensing of Environment 190 289-301 [10.1016/j.rse.2016.12.030] [Journal Article/Letter]

2016. "Cloud motion in the GOCI/COMS ocean colour data." International Journal of Remote Sensing 37 (20): 4948-4963 [10.1080/01431161.2016.1225177] [Journal Article/Letter]

2016. "Global ocean phytoplankton [in State of the Climate in 2015]." Bulletin of the American Meteorological Society 97 (7): S87-S89 [Journal Article/Letter]

2016. "Uncertainties in coastal ocean color products: Impacts of spatial sampling." Remote Sensing of Environment 181 14-26 [10.1016/j.rse.2016.03.022] [Journal Article/Letter]

2016. "The Sensitivity of SeaWiFS Ocean Color Retrievals to Aerosol Amount and Type." J. Atmos. and Oceanic Tech 33 (6): 1185–1209 [10.1175/JTECH-D-15.0121.1] [Journal Article/Letter]

2015. "Contribution of Raman scattering to polarized radiation field in ocean waters." Optics Express 23 (18): 23582 [10.1364/oe.23.023582] [Journal Article/Letter]

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] [Journal Article/Letter]

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] [Journal Article/Letter]

2015. "The Ocean Colour Climate Change Initiative: II. Spatial and temporal homogeneity of satellite data retrieval due to systematic effects in atmospheric correction processors." Remote Sensing of Environment 162 257-270 [10.1016/j.rse.2015.01.033] [Journal Article/Letter]

2015. "The Ocean Colour Climate Change Initiative: I. A methodology for assessing atmospheric correction processors based on in-situ measurements." Remote Sensing of Environment 162 242-256 [10.1016/j.rse.2013.11.026] [Journal Article/Letter]

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] [Journal Article/Letter]

2015. "System vicarious calibration for ocean color climate change applications: Requirements for in situ data." Remote Sensing of Environment 159 361-369 [10.1016/j.rse.2014.12.015] [Journal Article/Letter]

2015. "On-orbit calibration of the Suomi National Polar-Orbiting Partnership Visible Infrared Imaging Radiometer Suite for ocean color applications ." Applied Optics 54 (8): 1984-2006 [10.1364/AO.54.001984] [Journal Article/Letter]

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] [Journal Article/Letter]

2015. "Chlorophyll variability in the oligotrophic gyres: mechanisms, seasonality and trends." Front. Mar. Sci. 2 1 [10.3389/fmars.2015.00001] [Journal Article/Letter]

2014. "Corrections to the MODIS Aqua Calibration Derived From MODIS Aqua Ocean Color Products." IEEE Transactions on Geoscience and Remote Sensing 52 (10): 6534-6541 [10.1109/tgrs.2013.2297233] [Journal Article/Letter]

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] [Journal Article/Letter]

2014. "Calibration uncertainty in ocean color satellite sensors and trends in long-term environmental records." Ocean Sensing and Monitoring VI 9111 [10.1117/12.2053427] [Proceedings]

2014. "Scientific impact of MODIS C5 calibration degradation and C6+ improvements." Atmos. Meas. Tech. 7 4353-4365 [10.5194/amt-7-4353-2014] [Journal Article/Letter]

2013. "Global Ocean Phytoplankton." Bulletin of the American Meteorological Society State of the Climate 575-578 [Journal Article/Letter]

2013. "Estimating variability in the quantum yield of Sun-induced chlorophyll fluorescence: A global analysis of oceanic waters." Remote Sensing of Environment 132 238-253 [10.1016/j.rse.2013.01.003] [Journal Article/Letter]

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] [Journal Article/Letter]

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] [Journal Article/Letter]

2013. "Spatially resolving ocean color and sediment dispersion in river plumes, coastal systems, and continental shelf waters." Remote Sensing of Environment 137 212–225 [10.1016/j.rse.2013.06.018] [Journal Article/Letter]

2013. "Generalized ocean color inversion model for retrieving marine inherent optical properties." Applied Optics 52 (10): 2019-2037 [10.1364/AO.52.002019] [Journal Article/Letter]

2012. "On the signal-to-noise ratio and product uncertainty of satellite ocean color measurements." Proc. Ocean Optics XXI [Journal Article/Letter]

2012. "Chlorophyll a algorithms for oligotrophic oceans: A novel approach based on three-band reflectance difference." J. Geophys. Res. 117 (C1): C01011 [10.1029/2011JC007395] [Journal Article/Letter]

2012. "Global ocean phytoplankton [in “State of the Climate in 2011”]." Bull Am Meteorol Soc 93 (7): S107-S110 [10.1175/2012BAMSStateoftheClimate.1] [Journal Article/Letter]

2012. "Dynamic range and sensitivity requirements of satellite ocean color sensors: learning from the past." Applied Optics 51 (25): 6045 [10.1364/AO.51.006045] [Journal Article/Letter]

2012. "On-orbit calibration of SeaWiFS." Applied Optics 51 (36): 8702-8730 [10.1364/AO.51.008702] [Journal Article/Letter]

2012. "Corrections to the Calibration of MODIS Aqua Ocean Color Bands Derived From SeaWiFS Data." IEEE Trans. Geosci. Remote Sensing 50 (1): 310-319 [10.1109/TGRS.2011.2160552] [Journal Article/Letter]

2012. "Detection of coccolithophore blooms in ocean color satellite imagery: A generalized approach for use with multiple sensors." Remote Sens Environ 117 249-263 [10.1016/j.rse.2011.10.001] [Journal Article/Letter]

2011. "Some insights of spectral optimization in ocean color inversion." Proc. SPIE 8175, Remote Sensing of the Ocean, Sea Ice, Coastal Waters, and Large Water Regions 2011 8175 817508 [10.1117/12.897875] [Journal Article/Letter]

2011. "Assessment of MERIS reflectance data as processed with SeaDAS over the European seas." Opt. Express 19 (25): 25,657-25,671 [10.1364/OE.19.025657] [Journal Article/Letter]

2011. "Impacts of Cross-Platform Vicarious Calibration on the Deep Blue Aerosol Retrievals for Moderate Resolution Imaging Spectroradiometer Aboard Terra." IEEE Trans. Geosci. Remote Sensing 49 (12): 4877-4888 [10.1109/TGRS.2011.2153205] [Journal Article/Letter]

2010. "Oceanography: Century of phytoplankton change." Nature 466 (7306): 569-571 [10.1038/466569a] [Journal Article/Letter]

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] [Journal Article/Letter]

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] [Journal Article/Letter]

2010. "Estimation of near-infrared water-leaving reflectance for satellite ocean color data processing." Optics Express 7521-7527 [Journal Article/Letter]

2009. "Spectral optimization for constituent retrieval in Case 2 waters I: Implementation and performance." Remote Sensing of Environment 113 (3): 571-587 [10.1016/j.rse.2008.11.001] [Journal Article/Letter]

2009. "Satellite-detected fluorescence reveals global physiology of ocean phytoplankton." Biogeosci 6 779-794 [] [Journal Article/Letter]

2008. "Cross calibration of ocean-color bands from Moderate Resolution Imaging Spectroradiometer on Terra platform." Appl Opt 47 (36): 6796-6810 [10.1364/AO.47.006796] [Journal Article/Letter]

2008. "Sources and assumptions for the vicarious calibration of ocean color satellite observations." Applied Optics 47 (12): 2035 [10.1364/AO.47.002035] [Journal Article/Letter]

2008. "Remote sensing of ocean color: Assessment of the water-leaving radiance bidirectional effects on the atmospheric diffuse transmittance for SeaWiFS and MODIS intercomparisons." Remote Sensing of Environment 112 (5): 2677-2685 [10.1016/j.rse.2007.12.010] [Journal Article/Letter]

2008. "Relationships between the surface concentration of particulate organic carbon and optical properties in the eastern South Pacific and eastern Atlantic Oceans." Biogeosci 5 171-201 [Journal Article/Letter]

2008. "Moderate Resolution Imaging Spectroradiometer on Terra: limitations for ocean color applications." J Appl Remote Sens 2 (1): 023525 [10.1117/1.2957964] [Journal Article/Letter]

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] [Journal Article/Letter]

2007. "SeaWiFS on-orbit gain and detector calibrations: effect on ocean products." Applied Optics 46 6733-6750 [10.1364/AO.46.006733] [Journal Article/Letter]

2007. "Atmospheric correction for NO2 absorption in retrieving water-leaving reflectances from the SeaWiFS and MODIS measurements." Applied Optics 46 (26): 6504 [10.1364/AO.46.006504] [Journal Article/Letter]

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 [Journal Article/Letter]

2007. "Sensor-independent approach to the vicarious calibration of satellite ocean color radiometry." Appl Opt 46 (22): 5068-5082 [Journal Article/Letter]

2005. "Moderate-Resolution Imaging Spectroradiometer ocean color polarization correction." Appl Opt 44 (26): 5524-5535 [Journal Article/Letter]

2003. "Operational Merging of MODIS and SeaWiFS Ocean Color Products at Level-3." NASA/TM-2003 47-49 [Article in Book]

2003. "The SeaWiFS PAR Product." NASA/TM 2003--206892, Vol 22 46-50 [Article in Book]

2003. "Level-1a and Level-3 Processing Changes." NASA/TM 2003-206892, Vol 22 41-45 [Article in Book]

2003. "A Long-term Intercomparison of Oceanic Optical Property Retrievals from MODIS-Terra and SeaWiFS." MODIS Validation, Data Merger and Other Activities Accomplished by the SIMBIOS Project: 2002-2003 NASA/TM-2003-212249 19-31 [Full Text] [Report]

2002. "Ocean-color optical property data Derived from the Japanese Ocean Color and Temperature Scanner and the French Polarization and Directionality of the Earth's Reflectances: a comparison study." Appl Opt 41 (6): 974-990 [Journal Article/Letter]

2001. "Effects of Spectral Bandpass on SeaWiFS-Retrieved Near-Surface Optical Properties of the Ocean." Applied Optics 40 (3): 343-348 [10.1364/AO.40.000343] [Journal Article/Letter]

2000. "Comparing the ocean color measurements between MOS and SeaWiFS: a vicarious intercalibration approach for MOS." IEEE Trans. Geosci. Remote Sensing 38 (1): 184-197 [10.1109/36.823911] [Journal Article/Letter]

1999. "SeaWiFS Spies Reefs." Reef Encounter 26 [Journal Article/Letter]

1998. "The COBE Diffuse Infrared Background Experiment Search for the Cosmic Infrared Background. II. Model of the Interplanetary Dust Cloud." The Astrophysical Journal 508 (1): 44-73 [10.1086/306380] [Journal Article/Letter]

1997. "The Three-Dimensional Structure of the Zodiacal Dust Bands." Icarus 127 (2): 461-484 [10.1006/icar.1997.5704] [Journal Article/Letter]

1996. "Inversion of the DIRBE photometry to derive the three dimensional distribution of the interplanetary dust." AIP Conference Proceedings [10.1063/1.49235] [Proceedings]

1996. "DIRBE observations of the zodiacal light." AIP Conference Proceedings [10.1063/1.49209] [Proceedings]

1995. "Observational confirmation of a circumsolar dust ring by the COBE satellite." Nature 374 (6522): 521-523 [10.1038/374521a0] [Journal Article/Letter]

1994. "Large-scale characteristics of interstellar dust from COBE DIRBE observations." The Astrophysical Journal 428 638 [10.1086/174274] [Journal Article/Letter]

1993. "Observations of the large-scale infrared emission from the galactic plane region by the diffuse infrared background experiment." Infrared Spaceborne Remote Sensing [10.1117/12.157827] [Proceedings]

1992. "Large-scale physical conditions in the interstellar medium from DIRBE observations." AIP Conference Proceedings [10.1063/1.44035] [Proceedings]

1992. "Dirbe evidence for a warp in the Galaxy." AIP Conference Proceedings [10.1063/1.43975] [Proceedings]


2019. "The NASA OBPG 2020 on-orbit calibration of SNPP VIIRS for ocean color applications." Earth Observing Systems XXIV [10.1117/12.2528769] [Proceedings]

2015. "Updates to the on-orbit calibration of SNPP VIIRS for ocean color applications." Earth Observing Systems XX 9607 [10.1117/12.2185940] [Proceedings]

2015. "MODIS Terra-Aqua C6+ Cross-Calibration Improvements ." GSICS Quarterly 9 (2): [10.7289/V5XK8CHN] [Newsletter]

2014. "Assessment of Satellite Ocean Colour Radiometry and Derived Geophysical Products (Chapter 6.1)." Optical Radiometry for Ocean Climate Measurements, 1st Edition 47 609-638 [Article in Book]

2014. "Corrections to MODIS Terra calibration and polarization trending derived from ocean color products." Earth Observing Systems XIX 9218 [10.1117/12.2062714] [Proceedings]

2014. "Ocean Color Measurements from Landsat-8 OLI using SeaDAS." Proc. Ocean Optics XXII [Proceedings]

2014. "SWIM: a semi-analytical ocean color inversion algorithm for optically shallow waters." Proc. Ocean Optics XXII [Proceedings]

2013. "A synthesis of VIIRS solar and lunar calibrations." Proc. SPIE 8866, Earth Observing Systems XVIII 8866 88661L [10.1117/12.2024069] [Proceedings]

2012. "Suomi NPP VIIRS ocean color data product early mission assessment." Proc. SPIE 8510, Earth Observing Systems XVII 8510 85101H [10.1117/12.931113] [Proceedings]

2012. "Quality and Consistency of the NASA Ocean Color Data Record." Proc. Ocean Optics XXI [Journal Article/Letter]

2012. "VIIRS on-orbit calibration for ocean color data processing." Proc. SPIE 8510, Earth Observing Systems XVII 8510 85101G [10.1117/12.930483] [Proceedings]

2011. "Assessment of NPP VIIRS Ocean Color Data Products: Hope and Risk." Proc. of SPIE 8153 9 pp. [10.1117/12.893945] [Proceedings]

2011. "The VIIRS ocean data simulator enhancements and results." Proc. SPIE 8153, Earth Observing Systems XVI 8153 81531P [10.1117/12.892936] [Proceedings]

2011. "Requirements for an Advanced Ocean Radiometer ." NASA Tech Memo 37 [Other]

2011. "Adjustments to the MODIS Terra radiometric calibration and polarization sensitivity in the 2010 reprocessing." Proc. SPIE 8153, Earth Observing Systems XVI 8153 815308 [10.1117/12.891787] [Proceedings]

2011. "Uncertainty Assessment of the SeaWiFS On-Orbit Calibration." Earth Observing Systems XVI [Proceedings]

2010. "A Generalized Framework for Modeling of Inherent Optical Properties in Ocean Remote Sensing Applications." Proc. Ocean Optics XX [Proceedings]

2009. "Influence of thin cirrus clouds on ocean color products." Proc. SPIE 7459, Ocean Remote Sensing: Methods and Applications 7459 745903 [10.1117/12.827272] [Proceedings]

2009. "Detector dependency of MODIS polarization sensitivity derived from on-orbit characterization." Proc. SPIE 7452, Earth Observing Systems XIV 7452 74520N [10.1117/12.825385] [Proceedings]

2009. "A VIIRS ocean data simulator." Proc. SPIE 7452, Earth Observing Systems XIV 7452 75420A [10.1117/12.827058] [Other]

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] [Proceedings]

2007. "Utility of MODIS-Terra for ocean color applications." Proc SPIE Int Soc Opt Eng 6677 14 pp [Other]

2007. "Correction of sub-frame striping in high-resolution MODIS ocean color products." Proc SPIE Int Soc Opt Eng 6677 12 pp [10.1117/12.732191] [Other]

2007. "On-orbit calibration of SeaWiFS: revised temperature and gain corrections." Proc SPIE Int Soc Opt Eng 6677 15 pp [Other]

2006. "Recent Advances in the Operational Vicarious Calibration of Visible and Near- infrared Ocean Color Satellite Radiometry." Proc. Ocean Optics XVIII [Proceedings]

2006. "MODIS Land Bands for Ocean Remote Sensing Applications." Proc. Ocean Optics XVIII [Proceedings]

2005. "The MODIS Aqua Point-Spread Function for Ocean Color Bands." 9th International Symposium on Physical Measurements and Signatures in Remote Sensing 36 334-336 [Proceedings]

2005. "The continuity of ocean color measurements from SeaWiFS to MODIS." Proc SPIE Int Soc Opt Eng 5882 304-316 [Other]

2003. "SIMBIOS Program in Support of Ocean Color Missions: 1997-2003." Proc SPIE Int Soc Opt Eng 5155 49-60 [Other]

2003. "Modifications to the SeaWiFS NIR Correction." NASA/TM 2003-206892, Vol 22 26-28 [Article in Book]

2003. "Masks and Flags Updates." NASA/TM 2003--206892, Vol 22 34-40 [Report]

2003. "Changes to the Atmospheric Correction Algorithm and Retrieval of Oceanic Optical Properties." NASA/TM 2003-206892, Vol 22 29-33 [Report]

2003. "SIMBIOS Project Data Processing and Analysis Results." NASA/TM-2003-211622 11841 [Article in Book]

2003. "Algorithm Updates for the Fourth SeaWiFS Data Reprocessing." NASA/TM 2003-206892 22 74 pp [Report]