11.5 By 2030, significantly reduce the number of deaths and the number of people affected and substantially decrease the direct economic losses relative to global gross domestic product caused by disasters, including water-related disasters, with a focus

Graphic displaying the reduction of adverse effects of natural disasters

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Interview with Bastian van den Bout, Assistant Professor, Twente University, Founder of FastHazard

Advancements in multi-hazard modelling are rapidly reshaping how we anticipate and respond to complex disaster scenarios. Dr. van den Bout underscores that while cutting-edge innovations have expanded our understanding of cascading impacts—from earthquakes triggering tsunamis to storms igniting landslides—persistent model uncertainties and patchy data threaten the reliability of truly integrated systems. He argues that only through close collaboration—melding the strengths of researchers, forecasters, and local experts—can we build the operational, resilient tools communities need. Capturing data during rare, destructive events remains a formidable hurdle, but embracing both foundational research and unconventional, “out-of-the-box” approaches will be vital to surmount these obstacles. Bringing multi-hazard disaster management from theory to practice hinges on precise model calibration, something that often demands boots-on-the-ground expertise and tailored field studies. Space-borne technologies—satellite imagery for landscape mapping and retrospective event analysis—play a growing role in refining water-related hazard forecasts, yet they must be complemented by detailed regional insights and rich observational datasets. For those eager to dive into flood modelling, online courses and math communicators offer accessible entry points. Beyond his technical pursuits, Dr. van den Bout credits a lifelong love of programming and video games for inspiring creative experimentation, reminding us that true innovation flourishes when we carve out time for curiosity—whether swimming in his favorite liquid state of water with family or scouring the internet for fresh data.

遥感技术在水敏感城市设计中的应用

Translated by Dr. Mengyi Jin

引言

随着城市化的快速推进,城市水环境正面临前所未有的挑战 (Chen et al. 2015)。城市地表不透水面的持续扩张削弱了自然雨水循环,导致降雨径流迅速汇集,增加了内涝发生的频率,也降低了雨水对地下水的补给能力。同时,水体污染以及城市热岛效应的加剧,进一步暴露出传统城市规划对水文系统适应性的不足。在气候变化背景下,极端降雨、干旱等事件的发生频率和强度不断上升,这些现象正严峻考验着城市对水资源的调蓄、排涝、净化和生态恢复等能力。

在这个背景下,水敏感城市设计(Water Sensitive Urban Design, WSUD)作为一种新型城市发展模式被广泛关注。与“低影响开发”(Low Impact Development, LID)理念相似, 水敏感城市设计强调模拟自然水循环过程,并提升城市应对水资源相关挑战的韧性。其核心目标在于将水资源视为城市系统中不可或缺的组成部分,通过系统性地管理水的收集、输送、处理与储存过程,实现其生态功能与社会功能的有机融合(Wong 2006)。

Tracking a changing water cycle: the role of space-based monitoring in a warming world

Introduction

In recent decades, many regions of the world have experienced a growing instability in rainfall patterns. What were once predictable seasonal rains have become unpredictable —arriving late, falling too fast, or not coming at all. As communities face longer droughts, more frequent floods, and declining snowpack, it’s increasingly clear that these disruptions are not isolated events, but signals of a deeper transformation: the global water cycle is changing.

Using remote sensing to support water-sensitive urban design

Introduction

With the rapid advancement of urbanization, urban water environments are facing unprecedented challenges (Chen et al. 2015). The continuous expansion of impervious surfaces has disrupted the natural water cycle, resulting in rapid stormwater runoff, increased frequency of urban flooding, and reduced groundwater recharge. At the same time, worsening water pollution and the intensifying urban heat island effect further highlight the limitations of traditional urban planning and design in adapting to hydrological systems.

Remote sensing approaches to detect and manage urban waterlogging

Urban waterlogging is an increasingly critical challenge particularly in cities where unplanned development, climate change, and inadequate drainage systems exacerbate the issue. Remote sensing provides a viable solution for detecting and managing urban waterlogging by providing real time and large-scale monitoring capabilities. Using satellite datasets such as Synthetic Aperture Radar (SAR), multispectral imaging, and thermal sensors urban planners can assess and monitor waterlogging. These datasets coupled with advanced algorithms like machine learning models allow for accurate predictions of waterlogged areas in the cities. Besides, the integration of these remote sensing tools with Geographic Information Systems (GIS) enhances the ability to manage water resources and develop sustainable urban infrastructures. Despite challenges such as data resolution and high costs of advanced imagery, remote sensing remains a key tool in addressing the socio-economic and environmental impacts of urban waterlogging, particularly in the face of climate change and urbanization.

Interview with Bastian van den Bout, Assistant Professor, Twente University, Founder of FastHazard

Advancements in multi-hazard modelling are rapidly reshaping how we anticipate and respond to complex disaster scenarios. Dr. van den Bout underscores that while cutting-edge innovations have expanded our understanding of cascading impacts—from earthquakes triggering tsunamis to storms igniting landslides—persistent model uncertainties and patchy data threaten the reliability of truly integrated systems. He argues that only through close collaboration—melding the strengths of researchers, forecasters, and local experts—can we build the operational, resilient tools communities need. Capturing data during rare, destructive events remains a formidable hurdle, but embracing both foundational research and unconventional, “out-of-the-box” approaches will be vital to surmount these obstacles. Bringing multi-hazard disaster management from theory to practice hinges on precise model calibration, something that often demands boots-on-the-ground expertise and tailored field studies. Space-borne technologies—satellite imagery for landscape mapping and retrospective event analysis—play a growing role in refining water-related hazard forecasts, yet they must be complemented by detailed regional insights and rich observational datasets. For those eager to dive into flood modelling, online courses and math communicators offer accessible entry points. Beyond his technical pursuits, Dr. van den Bout credits a lifelong love of programming and video games for inspiring creative experimentation, reminding us that true innovation flourishes when we carve out time for curiosity—whether swimming in his favorite liquid state of water with family or scouring the internet for fresh data.

Interview with Amin Shakya, PhD Candidate at the University of Twente

We present an interview with Amin Shakya, a PhD candidate at the ITC Faculty of Geo-information science and earth observation at the University of Twente. We delve into Amin’s first engagements with geospatial technologies, his current PhD research on river discharge estimation using earth observation, as well as his prior work on groundwater analysis using space technologies. Further, Amin is engaged with the youth community particularly with the Groundwater Youth Network. We discuss his take on the role of youth in climate change adaptation. Throughout this interview, we touch upon various water challenges across the globe, from disaster risk management in Nepal, to urban water challenges in Mexico, to his current PhD research focused in Europe and in Africa.

Interview with Amin Shakya, PhD Candidate at the University of Twente

We present an interview with Amin Shakya, a PhD candidate at the ITC Faculty of Geo-information science and earth observation at the University of Twente. We delve into Amin’s first engagements with geospatial technologies, his current PhD research on river discharge estimation using earth observation, as well as his prior work on groundwater analysis using space technologies. Further, Amin is engaged with the youth community particularly with the Groundwater Youth Network. We discuss his take on the role of youth in climate change adaptation. Throughout this interview, we touch upon various water challenges across the globe, from disaster risk management in Nepal, to urban water challenges in Mexico, to his current PhD research focused in Europe and in Africa.