“Digitization isn’t new in hydrology. What’s new is how fast, open, and connected it’s becoming”
As climate extremes intensify and water management becomes increasingly critical, few leaders have witnessed the digital transformation of environmental monitoring like Klaus Kisters.
The CEO of KISTERS, a family-owned company that has evolved from a 1963 German engineering office into a global environmental data powerhouse, shares his perspective on digitization, climate resilience, and why trustworthy data has never been more vital for decision-makers navigating an uncertain world.
KISTERS was founded in 1963, long before digital transformation became a buzzword. What positioned the company so early to recognize the power of environmental monitoring and data management?
In 1963, my father established what was originally a consulting office focusing on municipalities: street design, reservoir design, and water infrastructure systems. But by 1980, as a young student, I was already developing digitizing software to transform analogue charts into digital information. Time stamp and water level, time stamp and precipitation data. That's basically what digitization still is today. We transform analogue information into digital information to help people use it for their processes.
For us, digitization isn’t a buzzword; it’s a 60-year journey of uniting data, instruments, and purpose to keep life flourishing
The real catalyst came with the Christmas flood of 1993, affecting the Rhine and Moselle rivers in Germany. As a young engineer, I developed the first version of WISKI, our water information system, which was already in use at the flood alert centre in Mainz. I observed how operators were working with our system, and we began to attract more customers as agencies recognized the value of integrated flood monitoring and early warning systems.
What was the turning point when you realized just how powerful environmental data could be?
For me, the turning point isn't a single moment in the past. It's always the present. It's the situation right in front of us where action is needed, where the stakes are real. That's when the power of environmental data truly comes into focus. From the beginning, we knew the importance of this work. We entered this field not because of a grand epiphany, but because we believed deeply that this work mattered, that it could make a difference.
Certain moments become undeniable pivot points. Chernobyl in 1986 was one such moment. We were called upon to support radiation monitoring efforts, deploying sensors in rivers to track radiation levels in real time. That experience expanded our role and reinforced our commitment to using environmental data to meet urgent, real-world challenges.
How does KISTERS define digitization today beyond just technology?
Digitization isn't just a technical upgrade. It's how we help people navigate a world that's changing faster than ever. One of the clearest examples lies in digitizing historical hydrological records. Paper charts, once stored in filing cabinets, are now converted into time series data that can be analyzed in context. Was this a 10-year flood? A 100-year? A 500-year event? Climate change is happening, and we can see it in the data as events become more extreme and more localized.
Having trustworthy data makes a difference. It allows for faster, better decisions, even in organizations that are understandably cautious. When the data is there and it's undeniable, you can act with more confidence. At the end of the day, the only real solution to climate change is better engineering, and better engineering depends on reliable data that drives better decisions.
Speaking of trustworthy data, what makes environmental data truly reliable?
In hydrology, trust in your data isn't optional; it's everything. Without trustworthy data, your system is just a façade
In hydrology, trust in your data isn't optional. It's everything. Our customers never just publish raw data. They validate it, because in this field, publishing unverified data would be unthinkable. We have data validation portals that support both classical and contextual quality checks: gradient tests, dead-band thresholds, and side-by-side comparisons of sensor stations against neighboring locations.
The workflow is structured. You begin by monitoring reality, measuring precipitation, water level, and other key parameters. That raw data gets validated through statistical and contextual tests. Only then does derivation begin. In hydrology, discharge cannot be measured directly, it must be calculated from these validated measurements. So, if your input data isn't accurate, your discharge calculations are wrong and misleading. Everyone talks about digital transformation, but without trustworthy data, your system is just a façade.
With climate extremes increasing, how is KISTERS helping communities move from reactive to proactive responses?
Historical sensor networks that were once sufficient for regional-scale modeling are no longer adequate. Where 100 sensors once covered a basin, we now require significantly denser networks to maintain the same forecasting quality. We're making strategic investments in next-generation sensors that deliver high-accuracy, high-frequency time series data at scale and reasonable cost.
Floods get the headlines, but the hydrologist’s quiet, daily discipline is what truly keeps communities safe and resilient
The shift from reactive to proactive requires three fundamental capabilities: better prediction, real-time situational awareness, and automated decision support. We're helping communities achieve this through integrated monitoring systems that don't just collect data, they provide actionable intelligence. When a flood threatens, decision-makers need to know not just what's happening now, but what will happen in the next hours and days.
Our role is enabling that transformation by providing the technology infrastructure that turns uncertainty into foresight. These systems help our customers move from reacting to anticipating. That's how you build real resilience.
What are the biggest challenges in implementing digital transformation across diverse global markets?
Change is never easy. For most of our customers, they're already using systems and processes they're familiar with. When you introduce something new, that means changing behavior. Many customers are enthusiastic about what these systems can do, but to fully integrate them, the entire organization must adapt. That's where the real work begins.
Developing new things is always challenging, but that's just regular business for all of us. The key to successful digital transformation, whether it's within KISTERS or with our customers, is understanding why the work matters. What holds our global team of 750 employees across multiple regions together is that understanding. Most of our people genuinely love what they do. They're not just solving technical problems, they're doing something meaningful for our customers, for society. That same conviction is what helps our customers push through the difficult phases of digital transformation.
As a family-owned company, how does that influence your approach to leadership and decision-making, especially during challenging times?
Being privately held means thinking in decades, not quarters. We don't chase short-term wins. We want our customers with us for generations, and that same long-term thinking applies to how we treat our people. During the pandemic, when it became clear we wouldn't meet our financial targets, we made a deliberate choice not to reduce headcount. We chose to weather the storm with our people, because that's what leadership means in a family company. When you're privately held, you have the freedom to make decisions based on values, not just quarterly results.
Why is now the critical time for decision-makers to embrace digitization?
If people aren't informed, the consequences can be tragic. We've seen that. The pace and intensity of weather events have outpaced the capabilities of manual processes. Today's decision-makers need IT systems that integrate real-time data, forecast models, and automated alerts - and they need them fast.
We can’t change nature, but we can help our customers understand, anticipate, and respond to it with greater confidence
But there's another crisis we're facing: a shrinking workforce, especially in hydrology, which means we have fewer specialists but more systems to monitor than ever before. The solution is to empower those who remain with smart sensors that can monitor multiple parameters, cloud platforms that process data automatically, and AI-driven validation tools that catch anomalies before they become problems.
What's your message to the next generation of environmental professionals?
Always be open. Strive for innovation. Help your customers meet the challenges of climate change with smart, meaningful solutions. Be awesome. Be passionate.
But remember this: we can't change nature. We can only help, enable, empower and support our customers to deal with the environment as it is. We're not the heroes of the story. We're the shoulders they stand on.
Let's talk tech. What innovations are you most excited about?
With more IT horsepower and increasingly smart sensors, I see a future where environmental monitoring becomes both easier and more powerful. What excites me most is how the pieces are converging: sensor expertise, hardware innovation, and software intelligence, now fully integrated within the KISTERS Group. It's a holistic approach, and that's where the future lies.
Take HailSens360, new technology we've invested heavily in that delivers a proprietary nowcast 90 minutes in advance of an impending severe hail event with updates every six minutes. It's not just a real-time hail sensor, it's an early warning system so operators know when to stow and a post-event analysis tool supporting those crucial conversations with insurers.
The shift from reactive to proactive requires three capabilities: better prediction, real-time situational awareness, automated decision support
Our HyQuant radar sensor offers non-contact measurement of both water level and discharge with instant cloud connectivity, giving our customers the ability to significantly scale up their flood monitoring networks while keeping budgets in check. Expanded features delivering more value at less cost. That's the kind of innovation our customers actually need.
And with ProWave, we're pioneering what we believe is the next revolution in water management. In collaboration with the University of Duisburg-Essen and Harzwasserwerke in Germany we're exploring energy-autonomous sensors powered by water flow itself. These self-powered devices could dramatically expand monitoring networks, enabling even remote locations to transmit real-time data without batteries or external power.
We're not just improving existing tools - we're helping invent what comes next. These innovations help transform agencies from reactive responders to proactive decision-makers able to anticipate, adapt, and act long before a crisis emerges.
From your vantage point, what does the future hold for KISTERS?
We're just getting started. With 60 years of experience behind us, we're building for the next 60.
The challenges ahead are real, from climate change to aging infrastructure and a shrinking pool of expertise. But I've seen this industry rise to meet every challenge thrown at it, and we've always found a way forward through innovation and collaboration. We're in this for the long haul, in partnership with our customers, because when you're dealing with something as fundamental as water, the work never stops being important. That's what gives me confidence about what's ahead: not just the technology, but the people who understand why this work matters.