NV
Member Since 1993
Nick Van De Giesen
Professor, Delft University of Technology
Nick van de Giesen is professor at Delft University of Technology, Netherlands, where he holds the “Van Kuffeler” Chair of Water Resources Engineering. After a postdoctoral position with WARDA, Côte d’Ivoire, he was a Senior Researcher at the ZEF, University of Bonn. He received his PhD from Cornell University and his MSc from Wageningen University. He chairs the Delft|Global Initiative and is co-director of the Trans-African Hydro-Meteorological Observatory (www.tahmo.org).
Professional Experience
Delft University of Technology
Professor
2004 - Present
Education
Cornell University
Doctorate
1994
Wageningen University & Research
Masters
Honors & Awards
Ambassador Award
Received December 2023
Citation
The Ambassador Award recognizes both social impact and service to the scientific community. I believe Professor Nicolaas van de Giesen exemplifies the ideals of the Ambassador Award with his commitment to the study and dissemination of hydrologic knowledge and water resource data critical to the lives of people across a broad swath of the African continent.

His commitment to African hydrology began early in his career with a focus on catchment runoff and the study of small-scale farm reservoirs for agriculture. His contributions have culminated in his leadership of the Trans-African Hydro-Meteorological Observatory, or TAHMO, an African network designed to provide near-real-time weather and climate information directly to farmers, public safety officials, policymakers, aid agencies and researchers. As much of African agriculture is supported only by rainfall with only limited availability for supplemental irrigation, knowledge of soil moisture status, regional rainfall and temperatures is critical to avoid crop failure.

Under his leadership, TAHMO has grown to support more than 600 weather observation stations across 23 countries in Africa. Access to these data is life-changing for the populations, and for the first time, TAHMO is showing that there is a sustainable model for scientific-grade observations in resource-poor countries that can serve both the scientific and local communities.

Dr. van de Giesen’s career has been one of a hydrologic “ambassador,” bringing science to bear on socially critical issues in Africa. He has not been risk averse, instead choosing to work in a challenging environment where many others have failed to develop projects that remain durable and productive. The TAHMO team stands as a pioneering role model for science that is both accessible and immediately valuable to those on the ground. His efforts have been inclusive, empowering local scientists, engineers and even school children to become part of the solution.

While many of us aspire to use our science and engineering advances to better the lives of those in need, Nick’s efforts are making a difference every day. It is for these reasons and many more that I believe he is truly an ambassador of AGU.

— Scott W. Tyler
University of Nevada, Reno
Reno, Nevada
Response
I am genuinely and deeply honored to receive the Ambassador Award from AGU. I would like to thank my nominator, Scott Tyler, and supporters, George Sserwadda, Sam Akomea, and Marc Parlange, as well as the members of the jury. It is wonderful to receive such a prestigious award for scientific work in Africa. Doing science in Africa is rewarding since the issues at hand, especially when it comes to weather, climate and water, are extremely interesting and at the same time vastly underresearched. The processes we encounter are typically not yet well understood, and examining them experimentally produces exciting surprises at almost every turn. The main reason behind this obvious gap in our scientific knowledge is the general lack of human and financial resources to do research. In many African countries, illiteracy is still rampant, and the chances that a talented child becomes a successful researcher are slim indeed. Even in middle-income countries, like Ghana and Kenya, where there are a good number of college graduates, academic research is still limited because the challenges facing society pull these graduates toward immediate action. Still, looking a bit further down the road, I would argue, also advanced research is very much needed for the further development of the continent’s human and natural resources. If I have contributed to the development of scientific capital, it is because I have been very fortunate in receiving so much help along the way, from my Ph.D. work in Rwanda and the support of Tammo Steenhuis, my postdoc in Côte d’Ivoire and my work as senior researcher at the Center for Development Research in Bonn to my present work in Delft with the great Delft|Global team. Finally, I have to thank the wonderful TAHMO team, who have proven that one can, also under challenging circumstances, collect the data on weather, water and climate that are so desperately needed in the coming century, full of rapid change. Thank you all. — Nick van de Giesen, Delft University of Technology, Delft, Netherlands  
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Union Fellow
Received December 2023
Publications
Historical Shifts in Seasonality and Timing of Extreme Precipitation

Global warming impacts the hydrological cycle, affecting the seasonality and timing of extreme precipitation. Understanding historical changes in e...

December 15, 2023
AGU Abstracts
TEMBO Africa: Seven sensors, five products, three services
THE MACGYVER SESSION: NOVEL, EXCITING, SELF-MADE, HACKED, AND/OR IMPROVISED SENSORS, DATA ACQUISITION, AND DATA TRANSMISSION SOLUTIONS TO UNDERSTAND THE GEOSPHERE POSTER
hydrology | 14 december 2023
Nick Van De Giesen
The TEMBO Africa project seeks to sustainably improve the observation of weather and water variables in sub-Sahara Africa. The central idea is to brin...
View Abstract
The eWaterCycle platform for open and FAIR hydrological collaboration
ADVANCING HYDROLOGIC MODELING AND PREDICTION USING LARGE-DOMAIN METEOROLOGICAL AND HYDROLOGIC DATASETS II ORAL
hydrology | 12 december 2023
Rolf Hut, Jerom P. Aerts, Pau Wiersma, Vincent Hoo...
The eWaterCycle platform introduced in 2022 (https://doi.org/10.5194/gmd-15-5371-2022) provides hydrologists with an online platform to conduct numeri...
View Abstract
Deployment and Operation of Low-cost GNSS Stations for Atmospheric Monitoring in the East Africa Tropical Region
GEODESY FOR CLIMATE RESEARCH II ONLINE POSTER DISCUSSION
geodesy | 13 december 2022
Eugenio Realini, Alessandra Mascitelli, Giulio Tag...
Stationary GNSS receivers can be used to monitor atmospheric parameters such as the Zenith Total Delay (ZTD), related to the Precipitable Water Vapor ...
View Abstract
Volunteer Experience
2022 - 2023
Member
Horton Medal Committee
2020 - 2021
Member
Horton Medal Committee
2008 - 2013
Associate Editor
Water Resources Research
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