28/05/2025 10:00 AM GMT+7 TP HCM
We are pleased to introduce the research article titled Application of the TONIC model to assess the effectiveness of green roofs for a combined sewer network in Thu Duc City.
Authors: Quoc-Thinh Thuong, Phuoc-Dan Nguyen, Julien Némery, Ngoc-Ha Tran, Thi-Minh-Tam Le, Nicolas Gratiot, Marc Descloitres, Jaime Nivala, Truong-An Nguyen, Thanh-Long Tran, Hélène Castebrunet, Violeta Alexandra Montoya Coronado
Published in: Journal of Water Management Modeling, Vol. 33 (2025)
Quartile: Q3
Urban flooding in cities in Vietnam presents a complex challenge from natural occurrences and human activities. This research investigates the effectiveness of nature-based solutions (NbS) in fostering sustainable urban water management. The study utilized the TONIC model (Tools fOr greeN resilient Cities) to evaluate spill events within the combined sewer system of a drainage catchment in Thu Duc City, Ho Chi Minh City, Vietnam. The occurrence and magnitude of spills will likely escalate with the expansion of non-absorbent surfaces, indicating a pattern of unsustainable urban growth. The implementation of Green Roofs (GR) as an NbS measure was examined. In 2020, there were 16 days with stormwater spills totaling 3,035 m³. However, introducing GRs significantly decreased total discharge, from 2.78 million m³ to 2.17 million m³, and eliminated spill days in the study area. GRs effectively reduced impermeable areas and runoff coefficients (RC), achieving a 22% reduction in discharge volume and preventing spills during heavy rainfall. Although the real-world accuracy of these findings may vary, the study underscores the potential of NbS to improve urban water management practices. Thus, the TONIC simulation highlighted the benefits of GRs in lessening the hydraulic pressure on the sewer system and reducing pollution in urban canals due to overflow.
For detailed insights, access the full article here: https://doi.org/10.14796/JWMM.S550
On 22/10/2015, CARE has organized the meeting of the Scientific Council with the chairmanship of Dr. Nicolas Gratiot - Director and Chairman of the Scientific Council, Assoc. Pro. Vo Le Phu (on behalf of Assoc. Pro. Nguyen Phuoc Dan - Deputy Chairman)
22/10/2015
Project description The availability of High Resolution Imagery (spatial, spectral, and radiometric) with an increased time revisit (Landsat-8 and now Sentinel-2) opens the way to a more detailed observation of coastal zones and inland waters (large rivers, lakes and reservoirs)
26/02/2016
On 08 September 2016, the delegation from Institute of Research for Development (IRD – France) led by Mr. Thierry Lebel - Director of the Promotion of Interdisciplinary and Intersectoriality and Mr. Frédéric Ménard
02/09/2016
The pretty work, a monography collection of 15 megacities in the world about "Water, megacities and Global Change”, has been published by UNESCO. The CARE Lab-HCMUT Researchers are honored to represent Ho Chi Minh City by contributing an article
11/10/2016
CARE Lab-HCMUT is pleased to present you our publication of the monography "Ho Chi Minh City growing with water-related challenges".
31/10/2016
CARE Lab-HCMUT and PADDI, a member of the Ho Chi Minh City delegation, participated in the 26th Environment exhibition POLLUTEC, Lyon (France), which took place from 30/11 to 02/12/2016.
22/12/2016
Tuteur: Dr. BUI Xuan ThanhAssociate Professor in Environmental Engineering,Head, Department of Water Science & Technology Faculty of Environment & Natural Resources
11/01/2017
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