Algal blooms increasingly threaten lake and reservoir water quality at the global scale, caused by ongoing climate change and nutrient loading. To anticipate these algal blooms, models to project future algal blooms worldwide are required. Here we present the state-of-the-art in algal projection modelling and explore the requirements of an ideal algal projection model. Based on this, we identify current challenges and opportunities for such model development. Since most building blocks are present, we foresee that algal projection models for any lake on earth can be developed in the near future. Finally, we think that algal bloom projection models at a global scale will provide a valuable contribution to global policymaking, in particular with respect to SDG 6 (clean water and sanitation).

由于持续的气候变化和养分负荷，藻华在全球范围内日益威胁着湖泊和水库的水质。为了预测这些藻华，需要模型来预测全球未来的藻华。在这里，我们介绍了藻类投影建模的最新技术，并探讨了理想的藻类投影模型的要求。基于此，我们确定了此类模型开发的当前挑战和机遇。由于存在大多数构建块，因此我们可以预见，在不久的将来可以为地球上的任何湖泊开发藻类投影模型。最后，我们认为，全球范围内的藻类繁殖预测模型将为全球决策提供宝贵的贡献，特别是在可持续发展目标6（清洁水和卫生设施）方面。