Concept

Bassin amazonien

Publications associées (33)

Towards a metabolic theory of catchments: scaling of water and carbon fluxes with size

Catchments are heterogeneous ecosystems involving several abiotic and biotic processes, where the mutual interactions among water, vegetation, and biogeochemical fluxes take place at different scales. Many biological processes in nature are characterized b ...

2023

A dual-layer MPI continuous large-scale hydrological model including Human Systems

Sebastiano Piccolroaz

Large-scale hydrological models are demanding both in term of memory allocation and CPU time, particularly when assessment of modeling uncertainty is required. High Performance Computing offers the opportunity to reach resolutions not achievable with stand ...

2021

Radical Formation by Fine Particulate Matter Associated with Highly Oxygenated Molecules

Andrea Mario Arangio, Kai Wang, Ting Wang, Hang Su

Highly oxygenated molecules (HOMs) play an important role in the formation and evolution of secondary organic aerosols (SOA). However, the abundance of HOMs in different environments and their relation to the oxidative potential of fine particulate matter ...

2019

Dry-Season Greening and Water Stress in Amazonia: The Role of Modeling Leaf Phenology

Gabriele Manoli

Large uncertainties on the sensitivity of Amazon forests to drought exist. Even though water stress should suppress photosynthesis and enhance tree mortality, a green-up has been often observed during the dry season. This interplay between climatic forcing ...

2018

Tall and old Amazonian forests are more resilient to precipitation variability

Francesco Giardina

Climate change is altering the natural equilibrium of the Amazon ecosystem, which is in turn deeply connected to the Earth’s biogeochemical cycles. Understanding this relationship aids optimal rainforests management in the future. Previous research has inv ...

2017

Physical modelling optimization of a filter check dam in Switzerland

Anton Schleiss, Giovanni De Cesare, Sebastian Schwindt

After a major flood with a peak discharge of 177 m³/s in the city of Martigny (Valais, Switzerland) by the alpine river Drance in October 2000, the local authorities are strengthening efforts for the protection of the urban area. The Drance has an annual a ...

2016

Covering the last mile in the Brazilian Amazon - The role of knowledge -sharing strategies in the provision of universal electricity access

Remote areas are becoming a topic of increasing international interest as they can provide insights in the transition towards a more sustainable energy future. Being geographically isolated and distant from different services (e.g. energy, health and educa ...

Villigen PSI, World Resources Forum, printed by Paul Scherrer Institute2015

UAV based multispectral imaging over a lagoon with corals in Reunion Island

Martin Rehak, Yosef Akhtman, Dragos Constantin, Harold Gabriel Eugène Justin Clenet

A UAV-based hyperspectral survey was carried out in September 2014 over the fringing reef of l’Ermitage, Saint Gilles, Reunion Island. This site is of particular interest because it shows signs of major erosion and is subject to sudden flooding occuring du ...

2015

Surface thermal patterns of Lake Geneva, Switzerland, from 2008 to 2012

David Andrew Barry, Ulrich Lemmin, Damien Bouffard, Abolfazl Irani Rahaghi

In this study we characterize the spatial and temporal variability of the lake surface water temperature (LSWT), lake surface heat fluxes as well as the heat content of Lake Geneva from March 2008 to December 2012. This was accomplished using Advanced Very ...

2015

Hydrologic controls on basin- scale distribution of benthic invertebrates

Andrea Rinaldo, Tom Ian Battin, Enrico Bertuzzo, Serena Ceola

Streamflow variability is a major determinant of basin-scale distributions of benthic invertebrates. Here we present a novel procedure based on a probabilistic approach aiming at a spatially explicit quantitative assessment of benthic invertebrate abundanc ...

American Geophysical Union2014

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