A5055778719- Hydrology and Sediment Transport Processes
- Soil erosion and sediment transport
- Geological formations and processes
- Hydrology and Watershed Management Studies
- Geology and Paleoclimatology Research
- Coastal wetland ecosystem dynamics
- Flood Risk Assessment and Management
- Coastal and Marine Dynamics
- Water resources management and optimization
- Remote Sensing and LiDAR Applications
- Peatlands and Wetlands Ecology
- Soil and Water Nutrient Dynamics
- Fish Ecology and Management Studies
- Aeolian processes and effects
- demographic modeling and climate adaptation
- Landslides and related hazards
- Archaeology and ancient environmental studies
- Aquatic and Environmental Studies
- Methane Hydrates and Related Phenomena
- Remote Sensing in Agriculture
- Marine and coastal ecosystems
- Transboundary Water Resource Management
- Coastal and Marine Management
- Sustainability and Climate Change Governance
- Land Use and Ecosystem Services
Utrecht University
2015-2024
Japan External Trade Organization
2014-2015
Mitchell Institute
2013
University of Bonn
2012
Nederlands Instituut Publieke Veiligheid
1999-2001
ISRIC - World Soil Information
1992
Graduate School Experimental Plant Sciences
1992
University of Twente
1991
Exploring adaptation pathways into an uncertain future can support decisionmaking in achieving sustainable water management a changing environment. Our objective is to develop and test method identify such by including dynamics from natural variability the interaction between system society. Present planning studies on long-term often use few plausible futures for one or two projection years, ignoring dynamic aspect of through approach explore using multiple realisations transient scenarios...
We present a spatially explicit global overview of nearshore coastal types, based on hydrological, lithological and morphological criteria. A total four main operational types act as active filters both dissolved suspended material entering the ocean from land: small deltas (type I), tidal systems (II), lagoons (III) fjords (IV). Large rivers (V) largely bypass filter, while karstic (VI) arheic coasts (VII) inactive filters. This typology provides new insight into spatial distribution...
Abstract. In river basins, soils, groundwater, riparian zones and floodplains, streams, rivers, lakes reservoirs act as successive filters in which the hydrology, ecology biogeochemical processing are strongly coupled together to retain a significant fraction of nutrients transported. This paper compares existing concepts with current approaches describe biogeochemistry, assesses value these for understanding impacts interacting global change disturbances on biogeochemistry. Through merging...
Abstract Deltas are low-relief landforms that extremely vulnerable to sea-level rise. Impact assessments of relative rise in deltas primarily depend on elevation data accuracy and how well the vertical datum matches local sea level. Unfortunately, many major located data-sparse regions, forcing researchers policy makers use low-resolution, global obtained from satellite platforms. Using a new, high-accuracy model Vietnamese Mekong delta, we show quality is insufficient underscore cruciality...
Coastal plains are amongst the most densely populated areas in world. Many coastal peatlands drained to create arable land. This is not without consequences; physical compaction of peat and its degradation by oxidation lead subsidence, also leads emissions carbon dioxide (CO2). study complements existing studies quantifying total land subsidence associated CO2 respiration over past millennium Dutch peatlands, gain insight into consequences cultivating longer timescales. Results show that...
Abstract This paper presents the result of measurements floodplain sedimentation using sediment traps. The study was carried out on two embanked floodplains along Rivers Rhine and Meuse in Netherlands during a 3 day flood January 1993. Raster maps accumulation were made by interpolating from traps block kriging. show clear patterns accumulation, together with estimated interpolation errors. Average ranges between 0·57 1·0 kg m −2 . High is found levees (4 or more) low lying areas (1·6 );...
Abstract Dynamic interaction between river morphodynamics and vegetation affects channel patterns populations of riparian species. A range numerical models exists to investigate the morphodynamics. However, many these oversimplify either or dynamics, which hampers development predictive for management. We have developed a model coupling advanced dynamic vegetation, is innovative because it includes ecological processes progressing characteristics as opposed commonly used static without...
Abstract Development of sustainable water management strategies involves identification vulnerability and adaptation possibilities, followed by an effect analysis these under different possible futures. Recent scenario studies on were mainly ‘what‐if’ assessments in one or two future situations. The is, however, more complex dynamic. It general trends unexpected events both the social system. Moreover, systems interact: society responds to state system changes response management. In this...
Abstract The low-lying and populous Vietnamese Mekong delta is rapidly losing elevation due to accelerating subsidence rates, primarily caused by increasing groundwater extraction. This strongly increases the delta’s vulnerability flooding, salinization, coastal erosion and, ultimately, threatens its nearly 18 million inhabitants with permanent inundation. We present projections of extraction-induced consequent loss for this century following six mitigation non-mitigation extraction...
Climate scenarios are used to explore impacts of possible future climates and assess the robustness adaptation actions across a range futures. Time-dependent climate commonly in mitigation studies. However, despite dynamic nature adaptation, most for local or regional decision making on static 'endpoint' projections. This paper describes development use transient (time-dependent) by means case water management Netherlands. Relevant boundary conditions (sea level, precipitation evaporation)...
Exploring adaptation pathways is an emerging approach for supporting decision making under uncertain changing conditions. An pathway a sequence of policy actions to reach specified objectives. To develop pathways, interactions between environment and response need be analysed over time ensemble plausible futures. A fast, integrated model can facilitate this. Here, we describe the development evaluation such model, Integrated Assessment Metamodel (IAMM), explore in Rhine delta problem...
Vegetation in river floodplains has important functions for biodiversity, but can also have a negative influence on flood safety. Floodplain vegetation is becoming increasingly heterogeneous space and time as result of restoration projects. To document the spatio-temporal patterns floodplain vegetation, need arises efficient monitoring techniques. Monitoring commonly performed by mapping based single-epoch remote sensing data, thereby not considering seasonal dynamics vegetation. The rising...
Abstract The objective of this study was to estimate the potential effects changes in climate and land use on mobilization fine sediment net transport wash load from upstream basin lower Rhine delta. For purpose, a suite geographical information system‐embedded models developed that simulates production, through drainage network deposition floodplains along river reaches. model results indicate if accordance with UKHI climate‐change scenario, combination changes, erosion rates will increase...
Shallow coastal ecosystems have high ecological value and contribute to flood protection. Their stability is, however, sensitive the amount rate of future sea level rise (SLR), their ability trap sediment which allows them grow with rising level, human response SLR. So far, studies focused on assessing SLR impacts using resource-intensive tools. Here, we present an approach for a first-order assessment easily accessible 'barcode' visualization rapidly assess potential both adaptation...
Deltas worldwide are at risk of elevation loss and drowning due to relative sea-level rise. Management strategies restore or enhance sedimentation on delta plains, Sedimentation-Enhancing Strategies (hereafter SES), now being pursued in many deltas but there has been limited cross-disciplinary cross-delta review. Here we compare 21 existing planned SES, synthesizing their physical characteristics, funding, governance arrangements, stakeholder engagement, process implementation, environmental...
Deltas play a critical role in the ambition to achieve global sustainable development given their relatively large shares population and productive croplands, as well precarious low-lying position between upstream river basin rising seas. The pressures on these systems risk undermining persistence of delta societies, economies, ecosystems. We analyse possible future 49 deltas around globe under Shared Socio-economic Representative Concentration Pathways until 2100. Population density, urban...
Abstract The embanked floodplains of the lower Rhine river in Netherlands contain large amounts heavy metals, which is a result many years deposition contaminated overbank sediments. metal pollution varies greatly between various floodplain sections as well vertical direction within soil profiles. present contribution describes key processes producing spatial variability soils: (1) patterns concentrations and Cd, Cu, Pb Zn during single flood, have been determined from samples collected...
This article addresses spatial variability of comtemporary floodplain sedimentation at the event scale. Measurements overbank deposition were carried out using sediment traps on 11 sections along rivers Waal and Meuse in The Netherlands during high-magnitude flood December 1993. During flood, sand sheets locally deposited behind a natural levee. At distances greater than 50 to 100 m from river channel deposits consisted mainly silt- clay-sized material. Observed patterns related topography...