Characterization of Terrestrial Discharges into Coastal Waters with Thermal Imagery from a Hierarchical Monitoring Program

Water

Paul Bishop¹  Massimiliano Lega²  Theodore Endreny³  Giannetta Fusco⁴  Claudia Ferrara⁴ 

[1] College of Engineering, University of Rhode Island, 102 Bliss Hall 1 Lippitt Rd, Kingston, RI 02881, USA;Department of Engineering, University of Naples Parthenope, Centro Direzionale di Napoli, Isola C4, 80143 Napoli, Italy;Department of Environmental Resources Engineering, College of Environmental Science and Forestry, SUNY, 402 Baker Labs, 1 Forestry Drive, Syracuse, NY 13244, USA;Department of Science and Technologies, University of Naples Parthenope, Centro Direzionale di Napoli, Isola C4, 80143 Napoli, Italy;

关键词: remote sensing;    hydrology;    drones;    environmental forensics;   

DOI  :  10.3390/w9070500

来源: DOAJ

【 摘 要 】

Background: The hierarchical use of remotely-sensed imagery from satellites, and then proximally-sensed imagery from helicopter sand drones, can provide a range of spatial and temporal coverage that supports water quality monitoring of complex pollution scenarios. Methods: The study used hierarchical satellite-, helicopter-, and drone-acquired thermal imagery of coastal plumes ranging from 3 to 300 m, near Naples, Italy, and captured temporally- and spatially-overlapping in situ samples to correlate thermal and water quality parameters in each plume and the seawater. Results: In situ sampling determined that between-plume salinity varied by 37%, chlorophyll-a varied by 356%, dissolved oxygen varied by 81%, and turbidity varied by 232%. The radiometric temperature, Trad, for the plume area of interest had a correlation of 0.81 with salinity, 0.74 with chlorophyll-a, 0.98 with dissolved oxygen, and −0.61 with turbidity. Conclusion: This study established hierarchical use of remote and proximal thermal imagery can provide monitoring of complex coastal areas.

【 授权许可】

Unknown