Krista Alikas

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About

Krista Alikas is a leading researcher in aquatic remote sensing, specializing in the optical properties of lakes and coastal waters. Her work focuses on understanding how environmental changes affect water color and quality, with major contributions to the calibration and validation of satellite-derived reflectance data. Alikas is perhaps best known for her long-term study of Lake Vänern, Sweden’s largest lake, where she analyzed over a decade of in situ remote sensing reflectance measurements from the AERONET-OC site at Pålgrunden. Her 2023 paper, cited 6 times, revealed a significant temporal increase in green and red spectral reflectance starting in 2015, signaling shifts in phytoplankton biomass or water composition. This finding is critical for improving satellite algorithms used to monitor water quality globally. Alikas’s work bridges field observations and satellite data, advancing our ability to track lake ecosystem responses to climate and anthropogenic pressures. Her research has been instrumental in refining ocean color retrieval methods for optically complex inland waters, making her a key figure in the European aquatic remote sensing community.