Playable Hydrology: Learning About Flood Generation Processes Through the Gamified Rainfall–Runoff Model SplashTune.
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| Title: | Playable Hydrology: Learning About Flood Generation Processes Through the Gamified Rainfall–Runoff Model SplashTune. |
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| Authors: | Yamazaki, Dai1 (AUTHOR) yamadai@iis.u-tokyo.ac.jp, Yazawa, Taishi1 (AUTHOR) |
| Source: | Water Resources Research. May2026, Vol. 62 Issue 5, p1-21. 21p. |
| Subjects: | Watershed hydrology, Gamification, Hydrological research, Parameterization, Educational games, Visualization, Student engagement |
| Abstract: | Hydrological processes such as rainfall–runoff generation are inherently complex and often difficult to teach, particularly to students without prior background or interest. To address this challenge, we developed the gamified rainfall–runoff model SplashTune, using the educational programming language Scratch to support intuitive and exploratory learning of watershed hydrology (https://global‐hydrodynamics.github.io/game%5fe/). The model visualizes rainfall, infiltration, surface and subsurface flow, and runoff to river through particle‐based animation, emphasizing visual clarity and interactivity. Players manipulate land surface conditions, including land cover and soil moisture, to match simulated hydrographs with predefined targets, mimicking parameter tuning in hydrological modeling. A scoring system based on Nash–Sutcliffe efficiency provides immediate feedback and encourages repeated trial‐and‐error exploration. A workshop with high school students in Japan demonstrated the model's educational effectiveness. Pre‐ and post‐questionnaires revealed notable gains in understanding of both basic and complex hydrological concepts. Game‐based interaction was particularly effective in enhancing quantitative understanding, such as peak timing and soil moisture effects, compared to traditional lecture‐style instruction. Participants also reported that the gamified model made learning more enjoyable and memorable, especially due to its visual clarity, interactivity, and score‐based feedback. This approach fosters the development and communication of perceptual models of hydrological processes, enabling learners to refine their understanding through interactive simulation. Beyond classroom use, such tools offer potential to promote shared hydrological literacy and engagement across educational, policy, and public domains. Our findings highlight the value of combining scientific modeling with game‐based learning to support both conceptual understanding and inclusive participation. Plain Language Summary: Understanding how rainfall becomes river flow is essential for learning about floods and the water cycle, but it can be hard to teach, especially when the processes are invisible or complex. To make hydrology more engaging and easier to understand, we created a fun and interactive computer game using Scratch. In this game, players adjust land conditions like forest cover and soil moisture to control water flow and match a target river flow. Attractive animations show how water moves through the ground, and a score helps players learn through trial and error. We tested the game with high school students in Japan and found that it not only made learning more enjoyable, but also helped students better understand key concepts like runoff timing and soil effects. This shows that game‐based tools can make complex science topics more accessible, effective, and fun to learn. Key Points: A gamified rainfall–runoff model enables visual exploration of hydrological processes with parameter tuning and score feedbackIterative gameplay with surface condition tuning helped students understand the interplay of runoff processes and hydrograph behaviorGamified learning enhanced motivation and process‐based understanding through visual clarity, interactivity, and immediate feedback [ABSTRACT FROM AUTHOR] |
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| Database: | Engineering Source |
| Abstract: | Hydrological processes such as rainfall–runoff generation are inherently complex and often difficult to teach, particularly to students without prior background or interest. To address this challenge, we developed the gamified rainfall–runoff model SplashTune, using the educational programming language Scratch to support intuitive and exploratory learning of watershed hydrology (https://global‐hydrodynamics.github.io/game%5fe/). The model visualizes rainfall, infiltration, surface and subsurface flow, and runoff to river through particle‐based animation, emphasizing visual clarity and interactivity. Players manipulate land surface conditions, including land cover and soil moisture, to match simulated hydrographs with predefined targets, mimicking parameter tuning in hydrological modeling. A scoring system based on Nash–Sutcliffe efficiency provides immediate feedback and encourages repeated trial‐and‐error exploration. A workshop with high school students in Japan demonstrated the model's educational effectiveness. Pre‐ and post‐questionnaires revealed notable gains in understanding of both basic and complex hydrological concepts. Game‐based interaction was particularly effective in enhancing quantitative understanding, such as peak timing and soil moisture effects, compared to traditional lecture‐style instruction. Participants also reported that the gamified model made learning more enjoyable and memorable, especially due to its visual clarity, interactivity, and score‐based feedback. This approach fosters the development and communication of perceptual models of hydrological processes, enabling learners to refine their understanding through interactive simulation. Beyond classroom use, such tools offer potential to promote shared hydrological literacy and engagement across educational, policy, and public domains. Our findings highlight the value of combining scientific modeling with game‐based learning to support both conceptual understanding and inclusive participation. Plain Language Summary: Understanding how rainfall becomes river flow is essential for learning about floods and the water cycle, but it can be hard to teach, especially when the processes are invisible or complex. To make hydrology more engaging and easier to understand, we created a fun and interactive computer game using Scratch. In this game, players adjust land conditions like forest cover and soil moisture to control water flow and match a target river flow. Attractive animations show how water moves through the ground, and a score helps players learn through trial and error. We tested the game with high school students in Japan and found that it not only made learning more enjoyable, but also helped students better understand key concepts like runoff timing and soil effects. This shows that game‐based tools can make complex science topics more accessible, effective, and fun to learn. Key Points: A gamified rainfall–runoff model enables visual exploration of hydrological processes with parameter tuning and score feedbackIterative gameplay with surface condition tuning helped students understand the interplay of runoff processes and hydrograph behaviorGamified learning enhanced motivation and process‐based understanding through visual clarity, interactivity, and immediate feedback [ABSTRACT FROM AUTHOR] |
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| ISSN: | 00431397 |
| DOI: | 10.1029/2025WR041550 |
