Our research on long-duration floods is published and highlighted in Nature Research npj Climate and Atmospheric Science.
As part of Devineni’s CAREER research, Nasser and Naresh have been investigating the governing factors for long‐duration floods where they focused on explaining how flood duration scales with the antecedent flow and atmospheric patterns, which are the primary contributing factors originating from the coupled land‐ocean‐atmosphere dynamic system.
They summarized these leading factors as maximum cumulative exceeding flow, blocking systems of pressure in the atmosphere, sufficient amount of moisture supply (water vapor), and the converging process for the available moisture (divergent wind). They also developed a physically based Bayesian network model for inference and prediction of flood duration that allows for a deeper understanding of the nexus of antecedent flow regime, atmospheric blocking, and moisture transport/release mechanisms.
This predictive model can aid in decision support systems for the protection of national infrastructure against long-duration flood events.
Nature Research npj Climate and Atmospheric Science is open access. (https://www.nature.com/npjclimatsci/)
The editorial summary provides a quick overview of the work.
Readers can get the paper at this link. https://www.nature.com/articles/s41612-019-0076-6
Citation: Najibi, N., Devineni, N., Lu, M., & Perdigão, R. A. (2019). Coupled flow accumulation and atmospheric blocking govern flood duration. npj Climate and Atmospheric Science, 2(1), 19. https://doi.org/10.1038/s41612-019-0076-6