Abstract
The objective of the study is to explore and assess the potential of Nature based Solutions (NbS) to mitigate the peak discharge rate in Banas River catchment, India. Dynamic modelling using the HEC-HMS modelling system to simulate the peak discharge rate of runoff was conducted. A systematic literature review was conducted to assess how NbS could be introduced in HEC-HMS and then be applied to a case study located in northern India to assess the potential impacts on peak flow. It was found that the overall peak discharge rate of runoff at the sink reduced from 1069.9 m 3/s to 1033 m 3/s on application of Nature based Solutions. Next, scenarios were built for four pilot sub-catchments where the effect of Nature based Solution was represented as surface roughness modulators. A reduction in the peak discharge by 24.9%, 34.16%, 81.02% and 27.73% was observed. The findings suggest that the application of NbS has the potential to reduce surface runoff, peak flows, and flood volumes in the Banas River catchment area and in other catchments with similar conditions. Graphical Abstract: [Figure not available: see fulltext.]
| Original language | English |
|---|---|
| Journal | Water Resources Management |
| Early online date | 29 Jan 2024 |
| DOIs | |
| Publication status | Published - 29 Jan 2024 |
Funding
The study is a part of Govt. of India Research fellowship (Ph.D.) and is partially supported by the Climate-Resilient, Energy Secure, and healthy built environments (CREST) project. CREST is a Collaborative Grant from the British Council’s Going Global Partnerships programme [grant number 877766384]
| Funders | Funder number |
|---|---|
| The British Council | 877766384 |
| Core Research for Evolutional Science and Technology |
Keywords
- Curve number
- HEC-HMS
- Hydrological modelling
- Nature based Solutions
- Peak discharge rate
- Surface roughness modulators
ASJC Scopus subject areas
- Water Science and Technology
- Civil and Structural Engineering