Pages
- 1
- 2
- document
-
Diaz, Vitali (author), Corzo Perez, Gerald A. (author), Van Lanen, Henny A.J. (author), Solomatine, D.P. (author)In its three-dimensional (3-D) characterization, drought is an event whose spatial extent changes over time. Each drought event has an onset and end time, a location, a magnitude, and a spatial trajectory. These characteristics help to analyze and describe how drought develops in space and time (i.e., drought dynamics). Methodologies for 3-D...book chapter 2024
- document
-
Diaz, Vitali (author), van Oosterom, P.J.M. (author), Meijers, B.M. (author), Verbree, E. (author), Ahmed, N. (author), Van Lankveld, T. (author)Cloud-to-cloud (C2C) distance calculations are frequently performed as an initial stage in change detection and spatiotemporal analysis with point clouds. There are various methods for calculating C2C distance, also called inter-point distance, which refers to the distance between two corresponding point clouds captured at different epochs....conference paper 2024
- document
-
Diaz, Vitali (author), van Oosterom, P.J.M. (author), Meijers, B.M. (author), Verbree, E. (author), Ahmed, N. (author), Van Lankveld, T. (author)The advantages of using point clouds for change detection analysis include comprehensive spatial and temporal representation, as well as high precision and accuracy in the calculations. These benefits make point clouds a powerful data type for spatio-temporal analysis. Nevertheless, most current change detection methods have been specifically...abstract 2024
- document
-
Diaz, Nicholas D. (author), Lee, Yoonjeong (author), Kothuis, B.L.M. (author), Pagán-Trinidad, Ismael (author), Jonkman, Sebastiaan N. (author), Brody, Samuel D. (author)Floods are consistently ranked as the most financially devastating natural disasters worldwide. Recent flood events in the Netherlands, Caribbean, and US have drawn attention to flood risks resulting from pluvial and fluvial sources. Despite shared experiences with flooding, these regions employ distinct approaches and flood management...journal article 2024
- document
-
Cammalleri, Carmelo (author), Acosta Navarro, Juan Camilo (author), Bavera, Davide (author), Diaz, Vitali (author), Di Ciollo, Chiara (author), Maetens, Willem (author), Magni, Diego (author), Masante, Dario (author), Spinoni, Jonathan (author), Toreti, Andrea (author)Droughts evolve in space and time without following borders or pre-determined temporal constraints. Here, we present a new database of drought events built with a three-dimensional density-based clustering algorithm. The chosen approach is able to identify and characterize the spatio-temporal evolution of drought events, and it was tuned with...journal article 2023
- document
-
Khoshnazar, Ali (author), Corzo Perez, Gerald A. (author), Diaz, Vitali (author)Drought directly impacts the living organisms and environment, and thereby, its assessment is essential. Different drought indices require different data, which can be obtained based on models or in-situ measurements, demanding a significant amount of effort. Using remotely sensed (RS) data from satellites can facilitate this data acquisition....book chapter 2023
- document
-
Hooimeijer, F.L. (author), Bricker, J.D. (author), Ke, Q. (author), Bortolotti, A. (author), van der Heuvel, Jasper (author), Diaz, Andres (author)Mean sea level rise (SLR) could increase up to 2m by 2100, which would see damage caused by coastal flooding in Europe increase from €1.25bn per annum currently to €961bn in just over 80 years. Urban areas situated along the North Sea coastline are particularly vulnerable to extreme sea level rise (a combination of SLR, tide and storm surges)....journal article 2022
- document
-
Diaz, Vitali (author), Liu, H. (author), van Oosterom, P.J.M. (author), Meijers, B.M. (author), Verbree, E. (author), Baart, F. (author), Pronk, M.J. (author), Van Lankveld, T. (author)Point cloud is made up of a multitude of three-dimensional (3D) points with one or more attributes attached. Point cloud is the third data paradigm in addition to the well-established object (vector) and gridded (raster) representations, since point cloud data can be directly collected, computed, stored, and analyzed without converting to other...conference paper 2022
- document
-
Daly, Cathy (author), Fatorić, Sandra (author), Carmichael, Bethune (author), Pittungnapoo, Witiya (author), Adetunji, Olufemi (author), Hollesen, Jørgen (author), Nakhaei, Masoud (author), Diaz, Alberto Herrera (author)Climate change threatens archaeological sites and cultural landscapes globally. While to date, awareness and action around cultural heritage and climate change adaptation planning has focused on Europe and North America, in this article, the authors address adaptation policy and measures for heritage sites in low- and middle-income countries....journal article 2022
- document
-
Wüthrich, D. (author), Teng, Djimin (author), Ke, Q. (author), Diaz, Andres (author), Bortolotti, A. (author), Iuorio, Luca (author), Hooimeijer, F.L. (author)In a world influenced by climate change and consequently sea-level rise, extreme floods are expected to become more frequent in the future, representing a serious threat for riverine and coastal settlements. Therefore, flood protection is a large component of climate adaptation and should be closely related to other measures of climate...conference paper 2022
- document
-
Diaz, Vitali (author)Studies of drought have increased in light of new data availability and advances in spatio-temporal analysis. However, the following gaps still need to be filled: 1) methods to characterise drought that explicitly consider its spatio-temporal features, such as spatial extent (area) and pathway; 2) methods to monitor and predict drought that...doctoral thesis 2021
- document
-
Khoshnazar, Ali (author), Corzo Perez, Gerald A. (author), Diaz, Vitali (author)Drought characterization and risk assessment are of great significance due to drought’s negative impact on human health, economy, and ecosystem. This paper investigates drought characterization and risk assessment in the Lempa River basin in Central America. We applied the Standardized Evapotranspiration Deficit Index (SEDI) for drought...journal article 2021
- document
-
Varouchakis, Emmanouil A. (author), Hristopulos, Dionissios T. (author), Karatzas, George P. (author), Corzo Perez, GA (author), Diaz, Vitali (author)Precipitation data are useful for the management of water resources as well as flood and drought events. However, precipitation monitoring is sparse and often unreliable in regions with complicated geomorphology. Subsequently, the spatial variability of the precipitation distribution is frequently represented incorrectly. Satellite...journal article 2021
- document
-
Ramos, Sara (author), Diaz, Hugo (author), Lavidas, G. (author), Soares, Carlos Guedes (author)This paper aims to assess the techno-economic suitability of different marine areas for the<br/>nearshore and offshore wave energy exploration in the Madeira Islands, while avoiding conflict with any technical,<br/>environmental, legal or other use restriction. A wave energy device is also <br/>evaluated, which could constitute the best...book chapter 2020
- document
-
Diaz, Vitali (author), Corzo Perez, Gerald A. (author), Van Lanen, Henny A.J. (author), Solomatine, D.P. (author), Varouchakis, Emmanouil A. (author)The spatiotemporal monitoring of droughts is a complex task. In the past decades, drought monitoring has been increasingly developed, while the consideration of its spatio-temporal dynamics is still a challenge. This study proposes a method to build the spatial tracks and paths of drought, which can enhance its monitoring. The steps for the...journal article 2020
- document
-
Diaz, Vitali (author), Corzo Perez, Gerald A. (author), Van Lanen, Henny A.J. (author), Solomatine, D.P. (author), Varouchakis, Emmanouil A. (author)Drought is a complex natural phenomenon. The description of the way in which drought changes (moves) in space may help to acquire knowledge on its drivers and processes to improve its monitoring and prediction. This research presents the application of an approach to characterise the dynamics of drought. Tracks, severity, duration, as well as...journal article 2020
- document
-
Letouze, T. (author), Creno, L. (author), Diaz, J. (author), Hourlier, S. (author), Andre, J-M. (author)Continuous evolution of HMIs is necessary to keep operators in an optimal situation. In this context, we consider mental representations (MR) mobilized by operators as key elements for decisionmaking. Capturing and analysing these representations is not easy with existing tools. We propose a specific method (i.e. "MERIA" for Mental...conference paper 2019
- document
-
Diaz, Vitali (author), Corzo, Gerald A. (author), Pérez, José R. (author)Extreme hydrological events (EHEs), such as droughts and floods, vary spatially and temporally in nature. The increase in the number of events in the last few decades has motivated the research of the spatiotemporal variability of the future extreme precipitation and temperature. To study the consequences on the EHEs due to the uncertainty of...book chapter 2019
- document
-
Le, Hung Manh (author), Corzo, Gerald A. (author), Medina, Vicente (author), Diaz, Vitali (author), Nguyen, Bang Luong (author), Solomatine, D.P. (author)Drought indicators are of critical importance in characterization and forecasting. The use of the Standardized Precipitation Index (SPI) has increasingly become the main tool for drought analysis; however, the index lacks hydrological information useful as a proxy for other types of droughts. This study aims at evaluating the SPI against the...book chapter 2019
- document
-
Diaz, Vitali (author), Corzo, Gerald A. (author), Van Lanen, Henny A.J. (author), Solomatine, D.P. (author)Understanding, characterizing, and predicting drought is vital for the reduction of its consequences. In the last few decades, many studies have moved drought analysis from the conventional lumped approach to a more spatiotemporal analysis. Two main developments have motivated this: one is global data availability and the other is the number of...book chapter 2019
Pages
- 1
- 2