Evaluation on 2002-2021 CHL-A Concentrations in the Sea of Marmara with GEE Enhancement of Satellite Data

Remote sensing data, especially satellite observations make available large databases related to marine biosphere. This tremendous amount of the data causes a difficulty acquisition, processing and evaluation processes. Google Earth Engine (GEE) platform possible overcome this by its state art structure. Thus, GEE was included study process evaluate chlorophyll-a for sea Marmara. The Sea Marmara considered in 2 main parts as North South These also divided into 6 sub-regions analyzed 12 different regions total. MODIS (Moderate Resolution Imaging Spectroradiometer)-Aqua were acquired between years 2003-2021 with all examined them analysis. Approximately 19 arranged chl-a concentration visualized evaluated grouping according sub-regions, months years. As expected, highest observed square KM6, which includes Gulf Izmit has limited regeneration lowest values throughout found areal average KM4 under influence jet stream formed upper water from Black Sea. When monthly are examined, it can be said that primary production general takes place intensively whole spring season. In context study, accuracy division two axes is clearly seen analyzes within time series. We similarity concentrations period before 2007 2020 requires special attention evidence repetitive rather than an ecological coincidence.