PCDitch metamodel

Use the PCDitch metamodel here to immediately estimate the expected water quality.

PCDitch offers help

At Witteveen+Bos we work with partners to create sustainable water bodies and a safe environment in deltas, coastal and river areas. With rising sea levels, subsidence and changing climate, we face major challenges. This requires smart digital solutions, PCDitch offers help.


Both the PCLake model and the PCDitch model were developed by Jan Janse (Janse, 2005). Both models have been further developed by Witteveen+Bos, STOWA, NIOO-KNAW, Netherlands Environmental Assessment Agency and the WUR. PCLake has already been used successfully in several projects.

Image: Van Gerven, Luuk PA, et al. "How regime shifts in connected aquatic ecosystems are affected by the typical downstream increase of water flow." Ecosystems 20 (2017): 733-744.

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Experienced Ecologist with a demonstrated history of working in the civil engineering industry. Strong research professional skilled in water quality, modeling, water management, data analysis, and environmental science.

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Bob Brederveld Aquatic ecologist