Akademik Veri Yönetim Sistemi
Acta Oceanologica Sinica, cilt.44, sa.11, ss.1-17, 2025 (SCI-Expanded)
A common method for monitoring seawater quality involves collecting samples periodically and analyzing them in a laboratory. This method presents several challenges such as transportation of samples, limited access to testing areas, high costs, and non-instantaneous tests. In this paper, a new Wireless Sensor Network (WSN) based seawater quality monitoring system is designed and constructed to observe the seawater parameters that are indicative of marine pollution such as pH, electrical conductivity, temperature, and turbidity, along with geospatial data in real-time. It consists of one master node and several portable sensor nodes that are deployed at different locations on the sea surface. The IEEE 802.15.4 communication standard is utilized between master node and sensor nodes using star topology, while GSM/GPRS is used to connect the master node to a remote server. Collected data from the sensor nodes can be instantly viewed on data grids, graphics, and a map via both a developed web application and a hybrid mobile application. Additionally, the data can be filtered by different parameters and downloaded in spreadsheet format for integration with geographical information systems. After calibrating the sensors, experimental tests were conducted off the coast of Antalya Kucuk Calticak Bay over two separate periods totaling 14 days with only a 2% data loss. Furthermore, a verification test was performed for the sensors, where R-squared values ranged between 0.7 and 1.0, indicating a high correlation between sensor node data and standard instrument data.