document

Data-efficient resolution transfer with Continuous Kernel Convolutional Neural Networks

Haarman, Luuk (author)

Convolutional Neural Networks (CNNs) benefit from fine-grained details in high-resolution images, but these images are not always easily available as data collection can be expensive or time-consuming. Transfer learning pre-trains models on data from a related domain before fine-tuning on the main domain, and is a common strategy to deal with...

master thesis 2023

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Estimation of surface currents using optical satellite imagery of Kelvin wakes

Haakman, Koen (author)

Ocean currents play a crucial role in many scientific and industrial applications. Contemporary measurement techniques are limited in spatial coverage or spatial resolution. This study presents a proof-of-concept for a new measurement principle that merges optical satellite imagery of Kelvin wakes with data from the Automatic Identification...

master thesis 2023

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Three-Dimensional Mapping of Habitats Using Remote-Sensing Data and Machine-Learning Algorithms

Amani, Meisam (author), Foroughnia, Fatemeh (author), Moghimi, Armin (author), Mahdavi, Sahel (author), Jin, Shuanggen (author)

Progress toward habitat protection goals can effectively be performed using satellite imagery and machine-learning (ML) models at various spatial and temporal scales. In this regard, habitat types and landscape structures can be discriminated against using remote-sensing (RS) datasets. However, most existing research in three-dimensional (3D)...

journal article 2023

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Global identification and characterization of drivers of shoreline evolution: A novel method using Satellite Derived Shorelines and spatiotemporal characteristics

van der Heijden, Dante (author)

Since early history, humans have been attracted to coastal areas. This can be related to the economic benefits of these areas due to access of ocean navigation, coastal fisheries, tourism and recreation (Seas and Plans, 2011). Around 40% of the world’s population lives within 100 km of the coast (Seas and Plans, 2011). People are drawn to sandy...

master thesis 2022

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Histographies of architecture: a first analysis of the changing roof landscape in rural Kenya

Rademakers, Pelle (author)

In the last 50 years, the roof landscape of Sub-saharan Africa has undergone a massive transformation that historians have not yet studied. Since the early 1980s, traditional grass-thatched roofs have mainly been replaced by corrugated iron sheet roofs (Kenya National Bureau of Statistics, 2019).<br/><br/>I witnessed this transformation while...

student report 2022

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Assessing beach width dynamics through earth observations

Roor, Twanne (author)

Coasts are constantly under the pressure of hydrodynamic conditions such as waves, tides, and storms. In the Netherlands, sand nourishments are executed every few years in order to maintain the country’s sandy beaches for purposes of safety, recreation, and ecology. In order to determine where to carry out these nourishments, the whole sandy...

master thesis 2022

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The impact of spatial resolution and satellite data type characteristics on Automated Damage Assessment using a Convolutional Neural Network

Verschoor, Fleur (author)

Satellite data, such as optical and Synthetic Aperture Radar imagery, can provide information about the location and level of destruction caused by natural hazards. This information is essential to optimise the rescue mission logistics by humanitarian aid organisations and save people in need. Currently, many Automatic Damage Assessment (ADA)...

master thesis 2022

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Remote sensing data as a soil moisture indicator for grass-covered dikes

Caljouw, Denise (author)

Dikes hold back water and protect the land behind it from flooding. Due to rising sea levels, land subsidence and more extreme weather patterns, the function of dikes become increasingly important. To ensure dike safety, dikes are regularly inspected. With about 22,500 kilometers of dikes in the Netherlands, this is a very slow, costly and time...

master thesis 2021

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Global shoreline forecasting with a clustering approach

Holland, Bram (author)

Coastal areas around the world have always been densely populated areas. However, sea-level-rise and an increase in single extreme events due to climate change, threaten the coastal areas and their inhabitants. Governmental organizations, coastal managers and various private parties thrive for better insights into long-term shoreline behavior...

master thesis 2021

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AI for Experience: Designing with Generative Adversarial Networks to evoke climate fascination

Ueberschär, Frederik (author)

Our world climate is an incredibly complex and ever-changing system. The reality of climate change and the consequential pressure to act fast to reduce greenhouse gas emissions requires immediate attention. And yet, despite this unprecedented urgency, active public engagement needed to motivate meaningful change is still missing.<br/> <br/> This...

master thesis 2021

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Comparison of Remotely Sensed and Volunteered Geographic Information for water reservoirs

Moscholaki, Maria (author)

The surface water extent around the world is constantly changing due to natural factors (e.g. geology and over-abstraction of water), climate change (e.g. higher water evaporation due to warmer climate) or human activities (e.g. reservoir construction). Water reservoirs are important for the management of the ecosystem, as both humans and the...

master thesis 2020

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Deriving Beach Grain Size from Satellite Imagery: A multimethod approach for deriving intertidal beach slopes and sediment grain sizes for different coastal environments

Onrust, Menno (author)

The world's coasts are at risk: an estimated 24% of the world's beaches are eroding. Extreme events such as storms continuously threaten the coastal region and pose a serious risk of coastal flooding. Under the influence of climate change, the seaward pressures are only expected to increase. Sea level rise is accelerating, storm intensities and...

master thesis 2020

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Prediction of the closure of an artificial lagoon at the Dutch Coast: A case study on the lagoon at the Hondsbossche Dunes

Jacobs, Joanneke (author)

To protect the coastal system, nourishment of the coast is nowadays being applied more frequently. Within these coastal systems new elements are often implemented to add value to the design without compromising on the function of the design of the nourishment. One of these possible purposes is the creation of an artificial lagoon. However, to be...

master thesis 2019

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Planetary-scale classification of natural and human-induced sandy shoreline evolution: A semi-automated method that employs Machine Learning and Satellite Derived Shorelines over the past decades

Kras, Etienne (author)

Today's coastal zones are densely inhabited as the majority of the world's population lives in these attractive areas. The shorelines in coastal zones are shaped by complex spatial and temporal variable interactions between natural forcings like changes in mean sea-level, tides, wave and wind conditions, and storm surges. Besides, natural...

master thesis 2019

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Automated classification of satellite data of informal urban settlements

Zhou, Zequn (author)

Urban areas are rapidly expanding in developing countries. One of goals of the United Nations Human Settlement Programme (UN-Habitat) is to understand and guide urban development for some developing regions.<br/>Currently, the approaches that UN-Habitat is using cost plenty of workforce, material, and time. Therefore, UN-Habitat is interested in...

master thesis 2019

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Mapping the Sandy Beach Evolution Around Seaports at the Scale of the African Continent

de Boer, W.P. (author), Mao, Yongjing (author), Hagenaars, Gerben (author), de Vries, S. (author), Slinger, J (author), Vellinga, T. (author)

In Africa, several new seaport developments are being considered. In sedimentary environments, such port developments can have adverse impacts on the evolution of adjacent coastlines. To learn from past port engineering practice, we created a unique database containing the coastline evolution and characteristics of 130 existing African seaports....

journal article 2019

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Analysing decadal-scale crescentic bar dynamics using satellite imagery: A case study at Anmok beach, South Korea

Athanasiou, Panagiotis (author), de Boer, W.P. (author), Yoo, Jeseon (author), Ranasinghe, Roshanka (author), Reniers, A.J.H.M. (author)

Understanding long-term sandbar dynamics can be crucial for informed coastal zone management, but is often hampered by data availability. To increase the number of sandbar observations available from bathymetric surveys, this study proposes and evaluates a method to manually extract the sandbar location using freely available satellite imagery...

journal article 2018

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Coastline evolution around African seaports: An evidence database from space

Mao, Mao (author)

Seaports are important maritime commercial facilities and key hubs for national and global trades. There is a growing need for seaborne transport and, hence, seaport facilities, especially in emerging economies due to economic and population growth, such as in Africa. In sedimentary environments, port construction may induce coastal impacts...

master thesis 2018

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Planetary-scale surface water detection from space

Donchyts, G. (author)

This thesis studies automated methods of surface water detection from satellite imagery. Multiple existing methods are explored, discussed, and some new algorithms are introduced to allowvery accurate detection of surface water and surfacewater changes. Themethods range in applicability from the local level to global, and from detecting high...

doctoral thesis 2018

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On the accuracy of automated shoreline detection derived from satellite imagery: A case study of the Sand Motor mega-scale nourishment

Hagenaars, Gerben (author), de Vries, S. (author), Luijendijk, A.P. (author), de Boer, W.P. (author), Reniers, A.J.H.M. (author)

Measured trends and variability in shoreline position are used by coastal managers, scientists and engineers to understand and monitor coastal systems. This paper presents a new and generic method for automated shoreline detection from the largely unexplored collection of publicly available satellite imagery. The position of the obtained...

journal article 2018