Floris Cornelis Boogaard

Hanzehogeschool Groningen · Institute of Architecture, Built Environment & Civil Engineering

Urban nature-based solutions (NBSs) are widely implemented to collect, store, and infiltrate stormwater. This study addressed infiltration rate as a measure of the performance of bioretention solutions. Quick scan research was conducted, starting with mapping over 25 locations of implemented green infrastructure in Riga, Latvia. Basic information,...

Asset management issues are and will always be key concerns for many stakeholders in the water sector. Despite this, there is still a lack of awareness and clear guidance on the topic. There has been some focus on the management of drainage pipes, but more effort needs to be dedicated to examining the various regulations, practices, and research wi...

First national calculations of all Dutch NBS show that over 25.000.000 m3 of storage volume is created in the last 20 years in the Netherlands for climate adaptation. Large cities score well in volume and number but related to the population small villages score often higher. Because of the open-source character of the tool, every city can use Clim...

Over 6000 small scale urban NBS locations are mapped around the world by citizen science making it the biggest database of climate adaptation locations in the world (total projects related to climateadaptation: over 14.000 in June 2024). Analysing the open source Change Adaptation Platform ClimateScan.org shows that bio filtration is the category w...

In 2024 the Low Impact Development Devices (LID) open-source international database ClimateScan consist of over 14.000 climate adaption related projects uploaded in the period of 2014–2024. For cities with over 500 projects, this offers an opportunity to construct a LID-DNA of the city. LID-DNA presents the ‘genetic information of the development a...

Urban drainage operation, management and rehabilitation can be divided into two distinct segments: traditional grey infrastructures (i.e. pipes and associated components) and green infrastructures. For piped systems this boils down to maintaining the operational safety, stability and tightness of the sewers and special structures. However, this cha...

High population growth, a lack of wastewater treatment plants and poor wastewater management are major challenges in wastewater management in Timor-Leste (East Timor). One of the approaches of the government of Timor-Leste is to separate wastewater into greywater and blackwater from domestic, commercial, residential, and industrial areas. Three met...

Asset management issues are and will always be key concerns for many stakeholders in the water sector. Despite this, there is still a lack of awareness and clear guidance on the topic. There has been some focus on the management of drainage pipes, but more effort needs to be dedicated to examining the various regulations, practices, and research wi...

Rembang Regency is one of the regencies in Central Java that often experiences drought. Based on the results of the mapping of drought-prone areas for 2020 carried out by the Rembang Regency government, there are 63 villages spread across 14 sub-districts, 18,885 families are recorded as experiencing drought. Kaliori District is one of the sub-dist...

The Tuntang Watershed is an important watershed in Central Java. Management of watersheds in the Tuntang stream is a priority for various parties to carry out. One of the things that threatens the sustainability of the Tuntang watershed is erosion. The erosion rate can lead to sediment accumulation and siltation in the Tuntang River reservoir, whic...

Sustainable urban drainage systems (SuDS) or nature-based solutions (NBSs) are widely implemented to collect, store and infiltrate stormwater. The buildup of pollutants is expected in NBSs, and Dutch guidelines advise monitoring the topsoil of bio-swales every 5 years. In the Netherlands, almost every municipality has implemented bio-swales. Some m...

Evaluation of the hydrological performance of grassed swales usually needs long-term monitoring data. At present, suitable techniques for simulating the hydrological performance using limited monitoring data are not available. Therefore, current study aims to investigate the relationship between saturated hydraulic conductivity (Ks) fitting results...

Infiltratie van regenwater in stedelijk gebied Wadi's, raingardens en waterdoorlatende verharding Aandachtspunten bij ontwerp, aanleg en beheer

Processes of urbanization and climate change are affecting the water balance in our cities, resulting in challenges such as flooding, droughts and heat stress. In many places worldwide the development of watersheds has increased the impervious land cover and led to an increase in stormwater runoff volume, with resultant flooding. Now, with increase...

As the field of climate adaptation has entered an implementation and acceleration phase, measures for urban water and heat management are rapidly spreading in cities across the globe. Especially nature-based solutions have seen a recent rise in implementation to fight flooding, heat, drought, and biodiversity loss. Despite decades of experience, th...

Saturated hydraulic conductivity (Ks) of the filler layer in grassed swales are varying in the changing environment. In most of the hydrological models, Ks is assumed as constant or decrease with a clogging factor. However, the Ks measured on site cannot be the input of the hydrological model directly. Therefore, in this study, an Ensemble Kalman F...

In steeds meer delen van ons land wordt drinkwater schaars. Dit leidt tot een toenemende vraag naar hemelwater- en grijswatersystemen die voor verschillende toepassingen het gebruik van drinkwater kunnen vervangen. ISSO-publicatie 70 bevat de richtlijnen voor het ontwerpen, realiseren en beheren van hemelwater- en grijswatersystemen. De kennis bes...

Global climate change will result in more extreme heat, drought, and rainfall. The urban environment is particularly vulnerable to these effects. Adaptation to these extreme weather conditions is difficult due to the high complexity of urban land-use patterns and stakeholder configurations. The current practice in the field of urban climate adaptat...

Greater New Orleans is surrounded by wetlands, the Mississippi River and two lakes. Excess rain can only be drained off with pumping systems or by evaporation due to the bowl-like shape of a large part of the city. As part of the solution to make New Orleans climate adaptive, green infrastructure has been implemented that enable rainfall infiltrati...

Currently, there is no method available that can systematically score the available ecosystem services in streets or street segments in suburban districts. In this study, different climate adaptation measures and their ecosystem services were categorized into green, blue, and grey categories and weight was given to each category based on their impa...

ZUSAMMENFASSUNG/SUMMARY Insights in the Dutch implementation of climate adaptation measures in a changing climate are given by the means of 3 tools. The tools show the quality of stormwater that is purified, stored and infiltrated by several nature-based solutions (NBS). The most implemented climate adaptation measures are bio filtration as swales...

Infiltrating pavements are potentially effective climate adaptation measures to counteract arising challenges related to flooding and drought in urban areas. However, they are susceptible to clogging causing premature degradation. As part of the Dutch Delta Plan, Dutch municipalities were encouraged to put infiltrating pavements into practice. Disa...

Nowadays, Nature-Based Solutions (NBSs) are developing as innovative multifunctional tools to maximize urban ecosystem services such as storm water preservation, reduction of runoff and flood protection, groundwater pollution prevention, biodiversity enhancement, and microclimate control. Gdańsk is one of the first Polish cities to widely introduce...

Swales are widely used Sustainable Urban Drainage Systems (SuDS) that can reduce peak flow, collect and retain water and improve groundwater recharge. Most previous research has focused on the unsaturated infiltration rates of swales without considering the variation in infiltration rates under extreme climate events, such as multiple stormwater ev...

Floating urbanization is a promising solution to reduce the vulnerability of cities against climate change, population growth or land scarcity. Although this type of construction introduces changes to aquatic systems, there is a lack of research studies addressing potential impacts. Water quality data collected under/near floating structures were c...

Although in 2019 the local government of Tegal city Indonesia had constructed a retention basin at drainage system of Siwatu, Tegal Barat, Tegal city with a catchment area of 226 ha, the areas around the system still experienced flood and inundation. This study belonged to a descriptive qualitative research aimed to evaluate the performances of Siw...

Nature-friendly wadis, rainwater gardens and infiltrating sidewalks are popular with Dutch municipalities and water offices which participate in the climate protection of cities, districts and villages. This emerges from the Top 21, which was compiled on the basis of clicks from visitors to the open source citizen science Climatescan.nl site. Past...

Any hydrological study of watersheds requires morphometric analysis. This analysis is a powerful tool in watershed management (Biswas et al., 1999, Yasmin et al., 2013). Climate change coupled with land-use changes raises development issues, including the availability of water resources for people's needs. Faced with these ever-increasing needs of...

Onderzoeksvragen en aanpak Het onderzoek is uitgevoerd door 10 Living labs te ontwikkelen in de gemeenten Rotterdam, Middelburg, Vlissingen, Groningen en Leeuwarden. De 10 Living labs bestaan uit geografisch afgebakende wijken waarin hogescholen, gemeenten, water�schappen en inwoners samen hebben gewerkt aan bovenstaand vraagstuk. Voorafgaand aa...

The majority of the world’s population lives in cities and cities are the key to achieving resilience. Local governments own only part of the land and can only partially decide about measures that should be taken ‘on the ground’. Local governments are therefore highly dependent on individuals, communities, and businesses to adapt and transform and...

Cities are becoming increasingly vulnerable to climate change, and there is an urgent need to make them more resilient. This research involves the development of a climate adaptation tool to measure and map different parameters that provide insight into the vulnerability of urban areas. The Climatescan adaptation tool is applied all around the worl...

Many delta cities worldwide are dealing with the same kind of problems: rising of the sea level, land subsidence, scarcity of land and illegal housing. Multiple land use is one of these solutions that will help to reduce flooding and scarcity of land. An example of multiple land use is a floating community. This research used Semarang as location f...

There is a clear demand for a collaborative knowledge-sharing by online climate adaptation platforms that contribute to (inter)national knowledge exchange and raising awareness about climate change. Climate adaptation platforms (CAPs) can contain decision-support tools to facilitate the process of decision-making, and may include capacity building,...

The rapid implementation of large scale floating solar panels has consequences to water quality and local ecosystems. Environmental impacts depend on the dimensions, design and proportions of the system in relation to the size of the surface water, as well as the characteristics of the water system (currents, tidal effects) and climatic conditions....

Climate change and changing land use challenge the livability and flood safety of Dutch cities. One option cities have to become more climate-proof is to increase infiltration of stormwater into soil through permeable pavement and thus reduce discharge of stormwater into sewer systems. To analyze the market receptivity for permeable pavements in th...

Students of the University of San Carlos and the Rotterdam and Hanze Universities of Applied Sciences have developed together new solutions to rehabilitate the Rivers Mahiga, Butuanon, Guadelupe and Bullacao in Metro Cebu in the Philippines. The four rivers drain the metropolitan area of Cebu and are polluted by untreated waste water and solid wast...

The European Union Water Framework Directive (WFD) encourages water managers to implement active stakeholder involvement to achieve sustainable water management. However, the WFD does not describe in detail how member states should operationalize participation. The need for local experience and local understanding of collaborative governance (co-go...

Malmö is well known within the field of urban hydrology, as the city was a pioneer in integrated water management. In 1998 the Augustenborg neighbourhood was refurbished due to its reoccurring problems with flooding and damage caused by water. The project “Ekostaden” (Eco-city) included many initiatives implementing nature-based solutions (NBS), su...

For a successful transition of existing urban areas towards climate resilience, it is essential that macro level policies and conceptual approaches find their way to every street and neighbourhood through urban retrofit projects. This chapter illustrates how technology, research and urban design can assist and inform this transformation process tow...

Online knowledge-sharing platforms could potentially contribute to an accelerated climate adaptation by promoting more green and blue spaces in urban areas. The implementation of smallscale nature-based solutions (NBS) such as bio(swales), green roofs, and green walls requires the involvement and enthusiasm of multiple stakeholders. This paper disc...

Online knowledge-sharing platforms could potentially contribute to an accelerated climate adaptation by promoting more green and blue spaces in urban areas. The implementation of small-scale nature-based solutions (NBS) such as bio(swales), green roofs, and green walls requires the involvement and enthusiasm of multiple stakeholders. This paper dis...

The rain gardens at Bryggen in Bergen, Western Norway, is designed to collect, retain, and infiltrate surface rainfall runoff water, recharge the groundwater, and replenish soil moisture. The hydraulic infiltration capacity of the Sustainable Drainage System (SuDS), here rain gardens, has been tested with small-scale and full-scale infiltration tes...

Effects of climate change in cities are evident and are expected to increase in the future, demanding adaptation. In order to share knowledge, raise awareness, and build capacity on climate adaptation, the first concept of a “ClimateCafé” has been utilized since 2012 in 25 events all over the world. In 8 years ClimateCafé grew into a field educatio...

Many delta cities worldwide are dealing with the same kind of problems: rising of the sea level, land subsidence, scarcity of land and illegal housing. Multiple land use is one of these solutions that will help to reduce flooding and scarcity of land. An example of multiple land use is a floating community. This research used Semarang as location f...

There is a clear demand for a collaborative knowledge-sharing on climate adaptation and mitigation. The aim of most climate adaptation platforms is (inter)national knowledge exchange and raising awareness about climate adaptation in urban areas and promote solutions such as Nature-based solutions (NBS) and floating infrastructure. However their mul...

Large floating projects have the potential to overcome the challenge of land scarcity in urban areas and offer opportunities for energy and food production, or even for creating sustainable living environments. However, they influence the physical, chemical, biological and ecological characteristics of water bodies. The interaction of the floating...

Sustainable urban drainage systems (SuDS) such as swales are designed to collect, store and infiltrate a large amount of surface runoff water during heavy rainfall. Stormwater is known to transport pollutants, such as particle-bound Potential Toxic Elements (PTE), which are known to often accumulate in the topsoil. A portable XRF instrument (pXRF)...

Sustainable urban drainage systems (SuDS) such as swales are designed to collect, store and infiltrate a large amount of surface runoff water during heavy rainfall. Stormwater is known to transport pollutants, such as particle-bound Potential Toxic Elements (PTE), which are known to often accumulate in the topsoil. A portable XRF instrument (pXRF)...

Sustainable urban drainage systems (SuDS) such as swales are designed to collect, store and infiltrate a large amount of surface runoff water during heavy rainfall. Stormwater is known to transport pollutants, such as particle-bound Potential Toxic Elements (PTE), which are known to often accumulate in the topsoil. A portable XRF instrument (pXRF)...

ClimateCafé is a field education concept involving different fields of science and practice for capacity building in climate change adaptation. This concept is applied on the eco-city of Augustenborg in Malmö, Sweden, where Nature-Based Solutions (NBS) were implemented in 1998. ClimateCafé Malmö evaluated these NBS with 20 young professionals from...

With climate change and urban development, water systems are changing faster than ever. Currently, the ecological status of water systems is still judged based on single point measurements, without taking into account the spatial and temporal variability of water quality and ecology. There is a need for better and more dynamic monitoring methods an...

De kwaliteit van afstromend hemelwater wordt bepaald door de samenstelling van de neerslag en van de verontreinigingen die het hemelwater tijdens de afstroming over daken en wegen meeneemt. Ten behoeve van beleidsvorming stelt STOWA samen met stichting RIONED al sinds 2007 een Database Hemelwaterkwaliteit ter beschikking. In 2020 verschijnt een fli...

In de wijk Augustenborg in Malmö zijn sinds de jaren '90 met de bewoners veel klimaatadaptie-en leefbaarheidselementen aangelegd. Maar functioneert de wijk nog naar tevredenheid en wat valt er te leren van (inter)nationale 'best management practices'? Om dit te onderzoeken is in juni 2019 een nieuwe internationale multidisciplinaire onderzoeksystem...

Sustainable urban drainage systems (SuDS) such as swales are designed to collect, store and infiltrate a large amount of surface runoff water during heavy rainfall. Stormwater is known to transport pollutants, such as particle-bound Potential Toxic Elements (PTE), which are known to often accumulate in the topsoil. A portable XRF instrument (pXRF)...

Sustainable urban drainage systems (SuDS) such as swales are designed to collect, store and infiltrate a large amount of surface runoff water during heavy rainfall. Stormwater is known to transport pollutants, such as particle-bound heavy metals, which are known to often accumulate in the topsoil. In this study, a portable XRF instrument is used to...

Floating solar panels and its effect on waterquality in DUTCH: Drijvende zonnepanelen en hun effect op de waterkwaliteit In Nederland drijven steeds meer zonnepanelen op het water. Kennis omtrent het effect op de waterkwaliteit van deze zonneparken is echter beperkt. Praktijkmetingen onder de platforms zijn vaak lastig uit te voeren. Er zijn ond...

Bergen city centre is prone to both subsidence and flooding. With a predicted increase in precipitation due to climate change, a higher proportion of rainfall becomes surface runoff, which results in increased peak flood discharges. In addition, it has been predicted that sea-level rise and increasing storm surges will result in coastal flooding. I...

As a consequence of climate change and urbanization, many cities will have to deal with more flooding and extreme heat stress. This paper presents a framework to maximize the effectiveness of Nature-Based Solutions (NBS) for flood risk reduction and thermal comfort enhancement. The framework involves an assessment of hazards with the use of models...

The infiltration systems at Bryggen in Bergen, Western Norway, were built to protect and preserve the UN-ESCO World Heritage Site Bryggen Wharf and its cultural layers below. This location is an example where Sustainable Urban Drainage Systems (SuDS) have been implemented to collect, infiltrate and store surface water. Rainwatergardens, swales and...

Sustainable Urban Drainages Systems (SuDS) are designed to collect, store and infiltrate large amount of surface runoff water during heavy rainfall. Surface runoff water is known to transport pollutants such as particle bound heavy metals. Therefore, a build-up of pollutants in the top-soil, of the commonly vegetated filter media is expected in SuD...

Management of sustainable urban drainage systems (SuDS) for retention and infiltration is an example of an approach that complies with climate adaptation. Next to the implementation of surface infiltration facilities (swales), in the densely populated Dutch cities most infiltration facilities are sited under roads and pavements located in or just a...

Cities are becoming increasingly vulnerable to climate change, and there is an urgent need for climateproof resilient cities. Groundwater issues are not always visual to stakeholders so raising awareness and capactiy building is of great importance. The Climatescan adaptation tool www.climatescan.nl is applied as an interactive tool for knowledge e...

Both climate change and human activity are the important drivers that can change hydrological cycle routs and affect the features of hydrological drought in river basins. The current study selects the Zayandeh Rud river Basin as a case study region in which to evaluate the influences of climate alteration and human activity on meteorological and hy...

The Climatescan adaptation tool www.climatescan.nl is applied as an interactive tool for knowledge exchange and raising awareness on Nature-Bases Solutions (NBS) targeting young professionals in ClimateCafes. Climatescan is a citizen science tool created through ‘learning by doing’, which is interactive, open source, and provide more detailed infor...

Urban flooding and heatstress have become a key issue for many cities around the world. The project 'INnovations for eXtreme Climatic EventS' (INXCES) developed new innovative technological methods for risk assessment and mitigation of extreme hydroclimatic events and optimization of urban water-dependent ecosystem services at the catchment level....

Climate change accentuates heat waves in The Netherlands. This, in combination with high nutrient concentrations in Dutch surface waters, is intensifying the proliferation of toxic blue-green algae (cyanobacteria), a threat for the health of the population and ecosystems. Lakes are resources for recreational activities, such as bathing, sailing and...

Cities are becoming increasingly vulnerable to climate change and there is a need for (inter)national knowledge exchange on Best Management Practices (BMPs) in climate adaptation. In semi-structured interviews stakeholders demanded international knowledge exchange tools that are interactive, open source and provide more detailed information (exact...

Both climate change and human activity are the important drivers that can change hydrological cycle routs and affect the features of hydrological drought in river basins. The current study selects the Zayandeh Rud river Basin as a case study region in which to evaluate the influences of climate alteration and human activity on meteorological and hy...

Both climate change and human activity are the important drivers that can change hydrological cycle routs and affect the features of hydrological drought in river basins. The current study selects the Zayandeh Rud river Basin as a case study region in which to evaluate the influences of climate alteration and human activity on meteorological and hy...

Presentation on 10 May 2019, 13.30 - 15.00 https://waspaconference.org/index.php/topics/

Both climate change and human activity are the important drivers that can change hydrological cycle routs and affect the features of hydrological drought in river basins. The current study selects the Zayandeh Rud river Basin as a case study region in which to evaluate the influences of climate alteration and human activity on meteorological and hy...

This research used a newly developed, full-scale infiltration testing (FSIT) procedure to determine the saturated surface infiltration rate of 16 existing permeable pavement installations in the Netherlands that have been in service for a number of years. Newly installed permeable pavements in the Netherlands must demonstrate a minimum infiltration...

The changing climate has an effect on the quality of life in our cities: heavier rainfall (resulting in floodings), longer periods of drought, reduced air and water quality and increasing temperatures in cities (heat stress). Awareness about these changes among various stakeholders is of great importance. Every Dutch region is required to perform a...