Ezra’s Round Table/Systems Seminar @Cornell

Andrea Castelletti has been invited to the  Ezra’s Round Table System Seminar series at Cornell University to talk about the NRM group’s research on the Italian lake district. The title of the talk was Soft-Path solutions for hard water problems: a journey in the drying Italian sub-alpine lake district. Ongoing changes in global climate are altering the hydrologic regime, expanding historically observed variability as well as increasing the frequency and intensity of extreme events. Evidence of this emerging behavior has been observed worldwide, including traditionally flood sensitive regions, such as the Italian Alps, where intensive droughts have repeatedly challenged agricultural and hydropower production in the last decade. Extensive model-based analyses carried out by the NRM group show that a soft-path approach can substantially mitigate the impact of changing climate, and help contrasting increasingly frequent and impacting droughts with little financial investment but a substantial shift in the existing water governance.  The webcast of the talk is  available here

Multicriteria Optimization Model to Generate on‐DEM Optimal Channel Networks: a new paper on WRR

Our paper on MoRE, the Multiobjective modeling framework for Riverscape Exploration has just been published on Water Resources Research. In nature, river networks self‐organize their branches so that the energy spent by the water flow to reach the outlet is kept to a minimum. This physical process can be expressed mathematically with diverse formulations, which inspired a theory called Optimal Channel Network. Several studies applied Optimal Channel Network theory to reproduce the 2-D features of channel networks. Yet these studies were not able to reproduce realistic river networks in 3-D. In this paper, we propose the Multiobjective modeling framework for Riverscape Exploration (MoRE), the first modeling framework able to generate artificial river networks from random digital elevation model that resemble those observed in nature for their 3‐D characteristics. This work contributes to enrich our understanding about the mechanisms guiding the development and evolution of river networks in nature and provides a software tool that can be used for future research on real‐world 3‐D river landscapes. Read more HERE.

Bizzi, S., Cominola, A., Mason, E., Castelletti, A., & Paik, K. (2018). Multicriteria optimization model to generate on-DEM optimal channel networks. Water Resources Research, 54.

NRM goes to Cornell University

Image result for cornell universityAndrea Castelletti has been awarded a Mary Upson visiting professorship at Cornell University. Andrea will be working for the next two months with the group of Pat Reed reinforcing ongoing collaboration and planning the next steps of a so far highly productive and intense partnership. As part of the appointment, Andrea will deliver a seminar at the Ezra’s Round Table Systems Seminar Series on complex hydro-environmental systems control.  Federica will join Cornell as well at the beginning of August to start exploring the use of parallel evolutionary algorithm in jointly planning and operating multi-dam systems.


Giovanni Caprara firma storica e responsabile della redazione scientifica del Corriere della Sera ha dedicato un articolo alla frammentazione fluviale e al nostro progetto H2020 AMBER. L’articolo è apparso su Buone Notizie  il settimanale del Corriere della Sera in edicola il martedì che dà voce alle storie positive di impegno e solidarietà.  L’articolo si può leggere online QUI e  verrà tradotto per altre importanti testate internazionali tra cui Le Figaro ed El Pais. Ecco un estratto:

I bacini fluviali sono una risorsa preziosa in ogni continente, ma la molteplicità degli interventi umani non adeguatamente gestiti ha prodotto alterazioni dannose non solo ai corsi d’acqua ma anche agli ecosistemi  che rappresentano. Dunque, sono una fonte di seri problemi ambientali, invece che di vantaggi offerti dalla natura