Assessing potential of the Geostationary Littoral Imaging and Monitoring Radiometer (GLIMR) for water quality monitoring across the coastal United States.

Autor: Schaeffer BA; US EPA, Office of Research and Development, Durham, NC 27709, United States of America. Electronic address: schaeffer.blake@epa.gov., Whitman P; Oak Ridge Institute for Science and Education, US EPA, Durham, NC 27709, United States of America., Vandermeulen R; National Oceanic and Atmospheric Administration, National Marine Fisheries Service, Silver Spring, MD, United States of America; Science Systems and Applications, Inc., Lanham, MD, United States of America., Hu C; College of Marine Science, University of South Florida, St. Petersburg, FL, United States of America., Mannino A; National Aeronautics and Space Administration, Goddard Space Flight Center, Greenbelt, MD, United States of America., Salisbury J; University of New Hampshire, Durham, NH, United States of America., Efremova B; GeoThinkTank, LLC, Miami, FL, United States of America., Conmy R; US EPA, Office of Research and Development, Cincinnati, OH 45268, United States of America., Coffer M; National Oceanic and Atmospheric Administration, NESDIS Center for Satellite Applications and Research, Greenbelt, MD, United States of America; Global Science and Technology Inc., Durham, NC, United States of America., Salls W; US EPA, Office of Research and Development, Durham, NC 27709, United States of America., Ferriby H; Tetra Tech, Research Triangle Park, NC 27709, United States of America., Reynolds N; RTI International, Research Triangle Park, NC, United States of America.
Jazyk: angličtina
Zdroj: Marine pollution bulletin [Mar Pollut Bull] 2023 Nov; Vol. 196, pp. 115558. Date of Electronic Publication: 2023 Sep 25.
DOI: 10.1016/j.marpolbul.2023.115558
Abstrakt: The Geostationary Littoral Imaging and Monitoring Radiometer (GLIMR) will provide unique high temporal frequency observations of the United States coastal waters to quantify processes that vary on short temporal and spatial scales. The frequency and coverage of observations from geostationary orbit will improve quantification and reduce uncertainty in tracking water quality events such as harmful algal blooms and oil spills. This study looks at the potential for GLIMR to complement existing satellite platforms from its unique geostationary viewpoint for water quality and oil spill monitoring with a focus on temporal and spatial resolution aspects. Water quality measures derived from satellite imagery, such as harmful algal blooms, thick oil, and oil emulsions are observable with glint <0.005 sr -1 , while oil films require glint >10 -5  sr -1 . Daily imaging hours range from 6 to 12 h for water quality measures, and 0 to 6 h for oil film applications throughout the year as defined by sun glint strength. Spatial pixel resolution is 300 m at nadir and median pixel resolution was 391 m across the entire field of regard, with higher spatial resolution across all spectral bands in the Gulf of Mexico than existing satellites, such as MODIS and VIIRS, used for oil spill surveillance reports. The potential for beneficial glint use in oil film detection and quality flagging for other water quality parameters was greatest at lower latitudes and changed location throughout the day from the West and East Coasts of the United States. GLIMR scan times can change from the planned ocean color default of 0.763 s depending on the signal-to-noise ratio application requirement and can match existing and future satellite mission regions of interest to leverage multi-mission observations.
Competing Interests: Declaration of competing interest Antonio Mannino reports financial support was provided by NASA. Joseph Salisbury reports financial support was provided by NASA.
(Published by Elsevier Ltd.)
Databáze: MEDLINE
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