NATMed: Daily Environmental Parameters at Lake Chimaditida (June-December 2025)

This dataset contains daily in-situ measurements of water quality and environmental parameters recorded at Lake Chimaditida, Western Macedonia, Greece, from June 5 to December 31, 2025 (210 daily records). Seven parameters are included: chlorophyll concentration (µg/L), relative dissolved oxygen (RDO, mg/L), specific conductivity (µS), oxidation-reduction potential (ORP, mV), pH, water temperature (°C), and lake surface level (m a.s.l.). The data were collected using a submerged multiparameter water quality sonde. Lake Chimaditida is a Ramsar-listed shallow freshwater lake of significant ecological importance in northern Greece. This dataset supports monitoring of water quality dynamics, seasonal stratification, and the ecological status of the lake.