Research Output per year
I have an MSc in Physical Geography from Utrecht University (NL) on slope stability analysis in Colombia (1995) and a PhD in Physical Geography from Utrecht University on the application of 2D flood propagation models for hazard and risk assessment (2007). I currently work at the University of Twente (Enschede, the Netherlands), Faculty of Geo-Information Science and Earth Observation (the former International Institute of Geo-Information Science and Earth Observation - also known as ITC). Within the research group on Natural Hazards and Disaster Risk Management - chaired by Prof. Dr. V. Jetten - I deal with flood related topics. My research interest lies primarily in flood risk assessment in developing countries - with a focus on SE-Asia (Thailand, Vietnam). The focus on developing countries I find particularly interesting because there is (usually) less data to work with, while the need for risk assessment - and appropriate methodologies that can be applied within these specific contexts - is very high.
|1995 - 1998||After my graduation in 1995 I worked for three years in the private sector as specialist in geostatistics: One year at Witteveen and Bos in Deventer and two years at Gemeentewerken Rotterdam. I applied geostatistics to soil pollution surveys.|
|1998 - 2001||In 1998 I moved to Milan, Italy where I was employed at the University of Milano-Bicocca as junior researcher in the EU-funded research project GETS: Geomorphology and Environmental Impact Assessment for Transportation Systems. In the GETS project I shifted my attention away from the slopes and focused on flood hazard. My study area was the Adige Valley near Trento (Italy) where I applied a two-dimensional flood propagation model to predict the consequences of large scale infrastructural works on the characteristics of (potential) floods in the area. This study became the first case study of three that resulted in my PhD dissertation.|
|2001 - 2002||In 2001 I worked at the Institute of Environment and Sustainability (IES) of the Joint Research Center (JRC) of the European Commission in Ispra, Italy. During my stay I worked on the reconstruction of an inundation of a polder along the Oder River during the 1997 floods. This became the second case study of my dissertation.|
|2002 - 2003||From 2002 to 2003 I was affiliated to the University of Utrecht where I studied in detail the propagation of flood water through the complex anthropogenic topography of the Dutch polder "Land van Maas en Waal". This became the third - and final - case study of my dissertation.|
|2003 - present||In 2003 I moved to the ITC, first as a lecturer but since 2007 as assistant Professor. In 2010 ITC became a faculty of the University of Twente.|
My teaching focuses on supervision of MSc-students during their research activities, although I contribute to the classroom teaching during the topics "Process Modeling" and "Multi-Hazard Risk Assessment" (see www.itc.nl/disaster-management). I also give guest lectures at the Asian Institute of Technology in Bangkok, Thailand, at the Post Graduate Institute of Science in Kandy, Sri Lanka, at the Indian Institute of Remote Sensing in Dehra Dun, India and at the Water Resources University in Hanoi, Vietnam.
ITC hosts also the UNU-school for Disaster Geo-Information Management (see www.itc.nl/unu-dgim). Within that school I coordinate a network of Universities in SE-Asia that collaborate on training and research in the field of geo-information for disaster management. I also contribute to numerous courses conducted in the region.
At ITC my research falls under the chair of Disaster Management (see: www.itc.nl/4D-EARTH), which aims i) at better prediction of Geo-hazards integrating spatial modeling and earth observation information, and ii) at a better integration of socio-economic factors and technical factors in risk assessment and disaster management. My research deals with i) the application of hydro-dynamic models for hazard and risk assessment; ii) developing probabilistic risk assessment methodologies for disaster risk management; and iii) multi-hazard risk assessment.
Current PhD studies (as supervisor):
Mrs. Nguyen Thi Hai Van (2007): "Multi-hazard risk assessment for an urbanized mountainous area in Vietnam" (ITC).
Activities in capacity development
|Details:||Coordinator of the CASITA University Network. The CASITA network is a spin-off of the EU- Asia IT&C project (see below) and stimulates collaboration in education and research in disaster risk management in South-East Asia.|
|Details:||Team-leader of the GITHRA (Geo-Information Technology for Hazard Risk Assessment) project (funded by Asian Development Bank). Aim: To develop training materials and methodologies for hazard risk assessment in the Vietnamese context. Clients: Water Resource University (WRU), Hanoi and Ministry of Agriculture and Rural Development (MARD).|
|Details:||Courses on GIS for Disaster Management: Annual series of GIS4DM courses (I and II) targeted to professionals working in Disaster Management organisations (governmental and non-governmental).|
|Details:||SCRATCH project: Funded by World Bank. Resource person for flood modelling and risk assessment in tsunami affected countries.|
|Details:||Resource person for flood modelling and advanced techniques for hazard assessment in the Asian Institute of Technology (AIT) course on Disaster Preparedness, Mitigation and Management, Bangkok, Thailand.|
|Details:||Resource person for hazard assessment in joint training programs on disaster reduction (e.g. PROMISE project) together with the Asian Disaster Preparedness Center (ADPC) in Bangkok, Thailand.|
|Details:||Expert on flood hazard assessment, flood modelling and dynamic GIS. Teaching at the University of Peradinya (Kandy) and participating in a research program with Ruhuna University (Matara); Teaching course on dynamic GIS for flood hazard assessment and slope stability assessment (May 2006; February 2007 and October 2009).|
|Date:||2003 - 2007|
|Details:||Project Expert ITC-SLARIM project. Act as project expert on flood hazard assessment / flood modelling. Supervising and teaching in the refresher course "Urban Flood Mitigation" (Naga - Sept 2004) using advanced hydrological models. Supervision of MSc students. Maintaining contacts with local officials.|
|Date:||2004 - 2006|
|Details:||Project LDEM. Act as expert on the application of dynamic GIS for hydrology / erosion studies in central Thailand through the supervision of a MSc student.|
|Details:||Distance education. Supervisor of students at the Indian Institute of Remote Sensing (IIRS) in the field of flood modelling.|
|Date:||September 2003 and April 2004|
|Details:||Project Expert EU-Asia IT&C CASITA project. Act as project expert in capacity building workshops in the field of urban disaster mitigation using GIS and Remote Sensing application tools.|
The application of day and night time ASTER satellite imagery for geothermal and mineral mapping in East AfricaHewson, R. D., Mshiu, E., Hecker, C., Van Der Werff, H. M. A., Van Ruitenbeek, F. J. A., Alkema, D. & Van Der Meer, F. D., 1 Mar 2020, In : International Journal of Applied Earth Observation and Geoinformation. 85, March, p. 1-13 13 p., 101991.
Research output: Contribution to journal › Article › Academic › peer-review
Research output: Non-textual form › Web publication/site › Academic
Weathering and deterioration of geotechnical properties in time of groundmasses in a tropical climateTran, T. V., Alkema, D. & Hack, H. R. G. K., 3 Oct 2019, In : Engineering geology. 260, p. 1-15 15 p., 105221.
Research output: Contribution to journal › Article › Academic › peer-review
Land cover change and the use of SoilGrids data for assessing flash flood in Marikina river basin, The Philippines : abastractShrestha, D. P., Brebante, B. M., Jetten, V. G., Herrera, E., Blanco, A. C., Gonzalez, R. M. & Alkema, D., 2018.
Research output: Contribution to conference › Abstract
Research output: Chapter in Book/Report/Conference proceeding › Chapter › Academic › peer-review