Publications

Kabiri, K (2022). Remote sensing of water clarity in the near-shore zone using a cross-sensor-based method: feasibility study: Kish Island, Persian Gulf. JOURNAL OF COASTAL CONSERVATION, 26(4), 26.

Abstract
In this study, the Landsat-8 Operational Land Imager (L8/OLI) and the Sentinel-2 Multi-Spectral Instrument (S2A/MSI) satellite data were employed to estimate the Secchi disk depth (Z(sd)) values as an indicator for water clarity in the near-shore zone. As the revisit cycle of L8 and S2A satellites is 16 and 5 days, which means they may have a harmonized overpass from a particular place every 80 days, two field measurements were conducted to determine the matchup Z(sd) values around Kish Island in the northern Persian Gulf, so that both chosen dates were coincident with the two harmonized overpasses of the above-mentioned satellites from the study area. Afterward, a general combined linear and ratio transform model was formed to estimate the Z(sd) values from the satellite data, based on the matchup field measured Z(sd) values. The statistical indicators, including the coefficient of determination (R-2) and the root mean square error (RMSE) were further determined for many combinations of bands and/or band ratios to suggest the optimum model. Compared with the L8/OLI models, the results demonstrated that the S2A/MSI ones had shown slightly higher accuracy, where this development had been improved once both imagers had been utilized to produce the integrated models.

DOI:
10.1007/s11852-022-00875-2

ISSN:
1874-7841