Version 1
: Received: 12 October 2023 / Approved: 12 October 2023 / Online: 13 October 2023 (16:41:31 CEST)
How to cite:
Li, H.; He, X.; Shanmugam, P.; Bai, Y.; Wang, D.; Li, T.; Gong, F. Evaluation of the VIIRS Ocean Color Products Using Global In-Situ Bio-Optical Data. Preprints2023, 2023100847. https://doi.org/10.20944/preprints202310.0847.v1
Li, H.; He, X.; Shanmugam, P.; Bai, Y.; Wang, D.; Li, T.; Gong, F. Evaluation of the VIIRS Ocean Color Products Using Global In-Situ Bio-Optical Data. Preprints 2023, 2023100847. https://doi.org/10.20944/preprints202310.0847.v1
Li, H.; He, X.; Shanmugam, P.; Bai, Y.; Wang, D.; Li, T.; Gong, F. Evaluation of the VIIRS Ocean Color Products Using Global In-Situ Bio-Optical Data. Preprints2023, 2023100847. https://doi.org/10.20944/preprints202310.0847.v1
APA Style
Li, H., He, X., Shanmugam, P., Bai, Y., Wang, D., Li, T., & Gong, F. (2023). Evaluation of the VIIRS Ocean Color Products Using Global In-Situ Bio-Optical Data. Preprints. https://doi.org/10.20944/preprints202310.0847.v1
Chicago/Turabian Style
Li, H., Teng Li and Fang Gong. 2023 "Evaluation of the VIIRS Ocean Color Products Using Global In-Situ Bio-Optical Data" Preprints. https://doi.org/10.20944/preprints202310.0847.v1
Abstract
Evaluating of long-term satellite-derived ocean color products using in-situ measurements is essential to ensure data quality and integrity. In this study, the Visible Infrared Imaging Radiometer Suite (VIIRS) remote sensing reflectance (Rrs) products were evaluated and analyzed by using long-term OC-CCI in-situ data from 2012 to 2021. The results demonstrate that the root mean square difference of VIIRS Rrs product accuracy in most bands is better than 0.002 (sr-1) when considering its average life span of 12 years. However, the VIIRS Rrs products in shorter wavelength bands (e.g., at 412 nm) had significantly lower accuracy in general and a long-term bias over the recent years. The annual precision of VIIRS Rrs products showed a declining trend especially in coastal or eutrophic waters. This accuracy deterioration of the VIIRS Rrs products suggests a strong need for continuous monitoring of its performance and further efforts on improving the atmospheric correction algorithm to specifically deal with satellite records at high SZAs and OZAs.
Keywords
ocean color; VIIRS; atmospheric correction; diurnal change; large solar zenith angle
Subject
Environmental and Earth Sciences, Remote Sensing
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
