On June 2024, PhilSA, in collaboration with UP Visayas, conducted an in-situ data sampling around the Nogas Island in Antique with the goal of utilizing remote sensing for coastal resources monitoring. Initial results of the field validation were presented at the 6th IOCS Meeting attended by ocean colour researchers from different countries. This study presents an exploratory field validation of satellite-derived remote sensing reflectance (Rrs) and chlorophyll-a (Chl-a) concentrations from Sentinel-2 Level-1C imagery, using in-situ measurements and collected samples around Nogas Island, Antique. Field measurements were conducted on June 19–20, 2024, and compared with Sentinel-2 data acquired on June 22, 2024. This effort represents an initial step in validating ocean color remote sensing products for coastal areas in the Philippines, where optically complex water properties and environmental conditions pose unique challenges. It also highlights the need to acquire ocean colour specific instruments that will can measure water parameters more accurately.

This study is part of the 6^th International Ocean Colour Science Meeting on 01-04 December 2025 in Darmstadt, Germany.

More information here.