Dr. Puneeta Naik Profile

Dr. Puneeta Naik

Postdoctoral Fellow at NESDIS

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Author

Publications (9)

Proceedings Article | 10 December 2014 Paper

Evaluation of VIIRS ocean color products

Menghua Wang, Xiaoming Liu, Lide Jiang, SeungHyun Son, Junqiang Sun, Wei Shi, Liqin Tan, Puneeta Naik, Karlis Mikelsons, Xiaolong Wang, Veronica Lance

Proceedings Volume 9261, 92610E (2014) https://doi.org/10.1117/12.2069251

KEYWORDS: Calibration, MODIS, Sensor calibration, Data processing, In situ metrology, Satellites, Water, Ocean optics, Short wave infrared radiation, Magnesium

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The Suomi National Polar-orbiting Partnership (SNPP) was successfully launched on October 28, 2011. The Visible Infrared Imaging Radiometer Suite (VIIRS) onboard the Suomi NPP, which has 22 spectral bands (from visible to infrared) similar to the NASA’s Moderate Resolution Imaging Spectroradiometer (MODIS), is a multi-disciplinary sensor providing observations for the Earth’s atmosphere, land, and ocean properties. In this paper, we provide some evaluations and assessments of VIIRS ocean color data products, or ocean color Environmental Data Records (EDR), including normalized water-leaving radiance spectra nLw(λ) at VIIRS five spectral bands, chlorophyll-a (Chl-a) concentration, and water diffuse attenuation coefficient at the wavelength of 490 nm Kd(490). Specifically, VIIRS ocean color products derived from the NOAA Multi-Sensor Level-1 to Level-2 (NOAA-MSL12) ocean color data processing system are evaluated and compared with MODIS ocean color products and in situ measurements. MSL12 is now NOAA’s official ocean color data processing system for VIIRS. In addition, VIIRS Sensor Data Records (SDR or Level- 1B data) have been evaluated. In particular, VIIRS SDR and ocean color EDR have been compared with a series of in situ data from the Marine Optical Buoy (MOBY) in the waters off Hawaii. A notable discrepancy of global deep water Chl-a derived from MODIS and VIIRS between 2012 and 2013 is observed. This discrepancy is attributed to the SDR (or Level-1B data) calibration issue and particularly related to VIIRS green band at 551 nm. To resolve this calibration issue, we have worked on our own sensor calibration by combining the lunar calibration effect into the current calibration method. The ocean color products derived from our new calibrated SDR in the South Pacific Gyre show that the Chl-a differences between 2012 and 2013 are significantly reduced. Although there are still some issues, our results show that VIIRS is capable of providing high-quality global ocean color products in support of science research and operational applications. The VIIRS evaluation and monitoring results can be found at the website: http://www.star.nesdis.noaa.gov/sod/mecb/color/index.html.

Proceedings Article | 23 May 2014 Paper

Evaluation of in-situ radiometric data processing for calibration and validation of satellite ocean color remote sensing

Puneeta Naik, Menghua Wang

Proceedings Volume 9111, 911108 (2014) https://doi.org/10.1117/12.2053457

KEYWORDS: Satellites, Sensors, Bidirectional reflectance transmission function, Calibration, MODIS, In situ metrology, Data processing, Water, In situ remote sensing, Remote sensing

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SPIE Journal Paper | 1 November 2010 Open Access

Assessment of particulate absorption properties in the southeastern Bering Sea from in-situ and remote sensing data

Puneeta Naik, Eurico D'Sa, Joaquim Goes, Helga Gomes

JARS, Vol. 4, Issue 01, 043561, (November 2010) https://doi.org/10.1117/12.10.1117/1.3525572

KEYWORDS: Absorption, Satellites, MODIS, Remote sensing, Reflectivity, Magnesium, Packaging, Optical filters, Absorption filters, Absorbance

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Proceedings Article | 18 October 2010 Paper

Empirical Orthogonal Function (EOF) analysis of sea-surface temperature and chlorophyll in the eastern Bering Sea

Puneeta Naik, Eurico D'Sa

Proceedings Volume 7825, 782503 (2010) https://doi.org/10.1117/12.864890

KEYWORDS: MODIS, Climatology, Magnesium, Satellites, Composites, Switching, Sensors, Clouds, Software development, Oceanography

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Proceedings Article | 10 September 2009 Paper

Particulate absorption properties from MODIS ocean color and four in-situ transects in the southeastern Bering Sea shelf during July 2008

Puneeta Naik, Eurico D'Sa, Joaquim Goés, Helga Gomes

Proceedings Volume 7473, 747302 (2009) https://doi.org/10.1117/12.831351

KEYWORDS: Absorption, Satellites, MODIS, Remote sensing, Particles, Satellite imaging, Atmospheric corrections, Clouds, Atmospheric modeling, Sensors

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Proceedings Article | 8 December 2006 Paper

Cross-calibration of IRS-P4 OCM satellite sensor

T. Suresh, Elgar Desa, Antonio Mascarenhas, S. G. Prabhu Matondkar, Puneeta Naik, S. Nayak

Proceedings Volume 6404, 640414 (2006) https://doi.org/10.1117/12.694019

KEYWORDS: Calibration, Satellites, Sensors, Radiative transfer, Atmospheric modeling, Atmospheric sensing, Sun, Ground-based vicarious calibration of satellites, Sensor calibration, Oceanography

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Proceedings Article | 8 December 2006 Paper

An algorithm to determine backscattering ratio and single scattering albedo

T. Suresh, Elgar Desa, S. G. Prabhu Matondkar, Antonio Mascarenhas, S. Nayak, Puneeta Naik

Proceedings Volume 6404, 64040V (2006) https://doi.org/10.1117/12.694003

KEYWORDS: Backscatter, Scattering, Water, Laser scattering, Remote sensing, Optical properties, Reflectivity, Ocean optics, Algorithm development, Signal attenuation

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Proceedings Article | 28 November 2006 Paper

An empirical method to estimate bulk particulate refractive index for ocean satellite applications

T. Suresh, Elgar Desa, Antonio Mascaranahas, S. G. Matondkar, Puneeta Naik, S. Nayak

Proceedings Volume 6406, 64060B (2006) https://doi.org/10.1117/12.694212

KEYWORDS: Refractive index, Water, Backscatter, Particles, Signal attenuation, Scattering, Satellites, Optical properties, Remote sensing, Absorption

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Proceedings Article | 28 November 2006 Paper

Secchi depth analysis using bio-optical parameters measured in the Arabian Sea

T. Suresh, Puneeta Naik, Mangesh Bandishte, Elgar Desa, Antonio Mascaranahas, S. G. Matondkar

Proceedings Volume 6406, 64061Q (2006) https://doi.org/10.1117/12.696251

KEYWORDS: Water, Optical properties, Signal attenuation, Transparency, Biological research, Optical testing, Reflectivity, Satellites, Eye models, Solar radiation models

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Showing 5 of 9 publications

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