In the current context of global change, assessing the impact of climate variability and changes on hydrological systems and water resources is increasingly crucial for society to better-adapt to future shifts in water resources as well as extreme conditions (floods and droughts). However, hitherto, important sources of uncertainties have been neglected in forecasting climate impacts on hydrological systems, especially uncertainties associated with internal/natural climate variability, whose contribution to near-future changes could be as important as forced anthropogenic climate changes at the regional scales. Internal climate modes of variability (e.g. ENSO, NAO, AMO) and their impact on the continent are not properly reproduced in the current global climate models, leading to large underestimations of decadal climate and hydroclimatic variability at the global scale. At the same time, hydrological response strongly depends on catchment properties, whose interactions with climate variability are little understood at the decadal timescales. These factors altogether reduce significantly our ability to understand long-term hydrological variability and to improve projection and reconstruction of future and past hydrological changes on which improvement of adaption scenarios depends.
We welcome abstracts capturing recent insights for understanding past or future impacts of large-scale climate variability on hydrological systems and water resources as well as newly developed projection and reconstruction scenarios. Results from model intercomparison studies are encouraged.

Convener: Bastien Dieppois | Co-conveners: David Hannah, Nicolas Massei, Jean-Philippe Vidal
| Wed, 10 Apr, 10:45–12:30
Room 2.25
| Attendance Wed, 10 Apr, 08:30–10:15
Hall A

Attendance time: Wednesday, 10 April 2019, 08:30–10:15 | Hall A

Chairperson: David Hannah
A.85 |
Moussa Sidibe, Bastien Dieppois, Jonathan Eden, Gil Mahé, Jean-Emmanuel Paturel, Ernest Amoussou, Babatunde Anifowose, and Damian Lawler
A.86 |
Bastien Dieppois, Benjamin Pohl, Jonathan Eden, Moussa Sidibe, Julien Crétat, and Kwok Pan Chun
A.87 |
Yanhua Qin, Xun Sun, Baofu Li, and Yaning Chen
A.89 |
Leticia Palazón, David Haro, and Santiago Beguería
A.90 |
Jonathan Schuite, Nicolas Flipo, Nicolas Massei, Agnès Rivière, and Fulvia Baratelli
A.91 |
Wushuang Yang, Hua Chen, Chong-yu Xu, Xiangquan Li, and Jie Chen
A.92 |
Juriy Nabyvanets, Oleksiy Shevchenko, Volodimir Osadchiy, Vasyl Grebin, Nataliia Osadcha, and Victoria Zhovnir
A.93 |
Pragnaditya Malakar, Abhijit Mukherjee, Soumendra Bhanja, Auroop Ganguly, Dipankar Saha, Ranjan Ray, Sudeshna Sarkar, and Anwar Zahid
A.94 |
Alexandre Devers, Jean-Philippe Vidal Vidal, Claire Lauvernet, and Olivier Vannier
A.95 |
Samantha Leader, Kevin Devito, David Hannah, and Nicholas Kettridge