Publications de Gianluca Botter

Data-driven statistical optimization of a groundwater monitoring network

We propose a comparative study of three different methods aimed at optimizing existing groundwater monitoring networks. Monitoring piezometric heads in subsurface porous formations is crucial at regional scales to properly characterize the relevant subsurf ...

Elsevier2024

Transit Time Estimation in Catchments: Recent Developments and Future Directions

Andrea Rinaldo, Gianluca Botter, Myungjin Kim, Paolo Benettin

Water transit time is now a standard measure in catchment hydrological and ecohydrological research. The last comprehensive review of transit time modeling approaches was published 15+ years ago. But since then the field has largely expanded with new data, ...

AMER GEOPHYSICAL UNION2022

Using water age to explore hydrological processes in contrasting environments

Gianluca Botter, Paolo Benettin

WILEY2022

Using SAS functions and high-resolution isotope data to unravel travel time distributions in headwater catchments

Andrea Rinaldo, Gianluca Botter, Paolo Benettin

We use high-resolution tracer data from an experimental site to test theoretical approaches that integrate catchment-scale flow and transport processes in a unified framework centered on selective age sampling by streamflow and evapotranspiration fluxes. T ...

American Geophysical Union2017

Young runoff fractions control streamwater age and solute concentration dynamics

Andrea Rinaldo, Gianluca Botter, Paolo Benettin

We introduce a new representation of coupled solute and water age dynamics at the catchment scale, which shows how the contributions of young runoff waters can be directly referenced to observed water quality patterns. The methodology stems from recent tre ...

Wiley-Blackwell2017

Statistical characterization of spatiotemporal sediment dynamics in the Venice lagoon

Andrea Rinaldo, Gianluca Botter

Characterizing the dynamics of suspended sediment is crucial when investigating the long-term evolution of tidal landscapes. Here we apply a widely tested mathematical model which describes the dynamics of cohesive and noncohesive sediments, driven by the ...

Amer Geophysical Union2016

Reply to comment by Porporato and Calabrese on "Storage selection functions: A coherent framework for quantifying how catchments store and release water and solutes''

Andrea Rinaldo, Enrico Bertuzzo, Gianluca Botter, Paolo Benettin

Amer Geophysical Union2016

Modeling chloride transport using travel time distributions at Plynlimon, Wales

Andrea Rinaldo, Gianluca Botter, Paolo Benettin

Here we present a theoretical interpretation of high-frequency, high-quality tracer time series from the Hafren catchment at Plynlimon in mid-Wales. We make use of the formulation of transport by travel time distributions to model chloride transport origin ...

Amer Geophysical Union2015

Linking water age and solute dynamics in streamflow at the Hubbard Brook Experimental Forest, NH, USA

Andrea Rinaldo, Gianluca Botter, Paolo Benettin

We combine experimental and modeling results from a headwater catchment at the Hubbard Brook Experimental Forest (HBEF), New Hampshire, USA, to explore the link between stream solute dynamics and water age. A theoretical framework based on water age dynami ...

American Geophysical Union2015

Tracking residence times in hydrological systems: forward and backward formulations

Andrea Rinaldo, Gianluca Botter, Paolo Benettin

In recent years, several papers contributed to the development and clarification of key theoretical issues underlying the formulation of transport by travel time distributions in catchments. Such a formulation provides a robust description of the temporal ...

Wiley-Blackwell2015

Scale-dependent effects of solar radiation patterns on the snow-dominated hydrologic response

Bettina Schaefli, Michael Lehning, Andrea Rinaldo, Francesco Comola, Gianluca Botter, Pierfrancesco Da Ronco, Mathias Thierry Pierre Bavay

Solar radiation is a dominant driver of snowmelt dynamics and streamflow generation in alpine catchments. A better understanding of how solar radiation patterns affect the hydrologic response is needed to assess when calibrated temperature-index models are ...

American Geophysical Union2015

Storage selection functions: A coherent framework for quantifying how catchments store and release water and solutes

Andrea Rinaldo, Enrico Bertuzzo, Gianluca Botter, Paolo Benettin

We discuss a recent theoretical approach combining catchment-scale flow and transport processes into a unified framework. The approach is designed to characterize the hydrochemistry of hydrologic systems and to meet the challenges posed by empirical eviden ...

Amer Geophysical Union2015

Light and hydrologic variability as drivers of stream biofilm dynamics in a flume experiment

Andrea Rinaldo, Enrico Bertuzzo, Serena Ceola, Lorenzo Mari, Marino Gatto, Gianluca Botter, Tom Ian Battin

We run a comparative study of the results of flume experiments and several dynamic models reproducing the effects of streamflow variability on biofilm (i.e. periphyton) temporal dynamics. During the experiment, two contrasting flow regimes, characterised b ...

Wiley-Blackwell2014

Catchment-scale herbicides transport: Theory and application

Andrea Rinaldo, Enrico Bertuzzo, Gianluca Botter

This paper proposes and tests a model which couples the description of hydrologic flow and transport of herbicides at catchment scales. The model accounts for streamflow components' age to characterize short and long term fluctuations of herbicide flux con ...

Elsevier Sci Ltd2013

Chloride circulation in a lowland catchment and the formulation of transport by travel time distributions

Andrea Rinaldo, Gianluca Botter, Paolo Benettin

Travel times are fundamental catchment descriptors that blend key information about storage, geochemistry, flow pathways and sources of water into a coherent mathematical framework. Here we analyze travel time distributions (TTDs) (and related attributes) ...

Amer Geophysical Union2013

Hydrologic Variability Affects Invertebrate Grazing on Phototrophic Biofilms in Stream Microcosms

Andrea Rinaldo, Enrico Bertuzzo, Serena Ceola, Lorenzo Mari, Gianluca Botter, Tom Ian Battin

The temporal variability of streamflow is known to be a key feature structuring and controlling fluvial ecological communities and ecosystem processes. Although alterations of streamflow regime due to habitat fragmentation or other anthropogenic factors ar ...

Public Library of Science2013

Kinematics of age mixing in advection-dispersion models

Andrea Rinaldo, Gianluca Botter, Paolo Benettin

This paper investigates age mixing processes arising in advection-dispersion models, where large-scale travel and residence time distributions can be explicitly calculated based on the underlying velocity field. In particular, we analyze spatially integrat ...

American Geophysical Union2013

Resilience of river flow regimes

Andrea Rinaldo, Gianluca Botter

Landscape and climate alterations foreshadow global-scale shifts of river flow regimes. However, a theory that identifies the range of foreseen impacts on streamflows resulting from inhomogeneous forcings and sensitivity gradients across diverse regimes is ...

National Academy of Sciences2013

Dominant controls on pesticide transport from tile to catchment scale: Lessons from a minimalist model

Andrea Rinaldo, Gianluca Botter

This paper proposes a minimalist modeling approach for characterizing pesticide concentrations in runoff from agricultural catchments across spatial scales. The model proposed is of an intermediate level of complexity between traditional chromatographic se ...

2012

Catchment travel time distributions and water flow in soils

Andrea Rinaldo, Enrico Bertuzzo, Ludovico Nicotina, Gianluca Botter

Many details about the flow of water in soils in a hillslope are unknowable given current technologies. One way of learning about the bulk effects of water velocity distributions on hillslopes is through the use of tracers. However, this paper will demonst ...

2011