Concept

Water cycle

Related publications (186)

Improving stream flow discharge modelling during snow melt

Michael Lehning, Nander Wever, Charles Fierz

The importance of the snow cover for the hydrological cycle is well known but the understanding is still limited. For example, the effect of rain-on-snow on melt water runoff and the coupling between spring snow melt and stream flow discharge are difficult ...

2013

A comparison between two statistical and a physically-based model in snow water equivalent mapping

Michael Lehning, Mathias Thierry Pierre Bavay, Tobias Jonas

Snow water equivalent (SWE) estimates at the end of the winter season have been compared for the 2002–2006 period in a 200 km2 mountainous area in Switzerland, using three different models. The first model, ALPINE3D, is a physically based process-oriented ...

Elsevier2013

Passive sampling of perfluorinated chemicals in water: Flow rate effects on chemical uptake

A recently developed modified polar organic chemical integrative sampler (POCIS) provides a means for monitoring perfluorinated chemicals (PFCs) in water. However, changes in external flow rates may alter POCIS sampling behaviour and consequently affect es ...

Elsevier2013

Worldwide data sets constrain the water vapor uptake coefficient in cloud formation

Athanasios Nenes

Cloud droplet formation depends on the condensation of water vapor on ambient aerosols, the rate of which is strongly affected by the kinetics of water uptake as expressed by the condensation (or mass accommodation) coefficient, αc. Estimates of αc for dro ...

2013

Hydrology as a driver of biodiversity: Controls on carrying capacity, niche formation, and dispersal

Andrea Rinaldo

A synthesis is presented highlighting the importance of hydrologic variables and dynamics to biodiversity patterns. The focus of this paper is the key hydrologic controls crucial towards quantifying the impacts of climate changes on the distribution of spe ...

Elsevier Sci Ltd2013

Modelling city-scale facade leaching of biocide by rainfall

David Andrew Barry, Luca Rossi, Sylvain Coutu, Chiara Rota

A methodology is presented for estimating, at the city scale, the amount of biocide released from facades during rain events. The methodology consists of two elements. First, leaching of a single facade is simulated using a two-region model, one region for ...

Elsevier2012

Hydrologic Activity of Deciduous Agroforestry Tree Observed through Monitoring of Stable Isotopes in Stem Water, Solar Radiation Attenuation, and Sapflow

Marc Parlange, Natalie Claire Ceperley, Theophile Mande

The net benefit of agroforestry trees for small scale farmers in dryland agricultural systems is debatable because while they provide significant direct and indirect services, they also consume considerable amounts of scare water resources. In this study w ...

2012

Carbon monoxide as a tracer of gas transport in snow and other natural porous media

Wolf Hendrik Huwald, Marc Parlange, Marc Calaf Bracons, Nicolaas Cornelis van de Giesen, Scott W. Tyler

The movement of air in natural porous media is complex and challenging to measure. Yet gas transport has important implications, for instance, for the evolution of the seasonal snow cover and for water vapor transport in soil. A novel in situ multi-sensor ...

American Geophysical Union2012

An analytical model for soil-atmosphere feedback

Bettina Schaefli

Soil-atmosphere feedback is a key for understanding the hydrological cycle and the direction of potential system changes. This paper presents an analytical framework to study the interplay between soil and atmospheric moisture, using as input only the boun ...

European Geosciences Union2012

EVAPOTRANSPIRATION: A PROCESS DRIVING MASS TRANSPORT AND ENERGY EXCHANGE IN THE SOIL-PLANT-ATMOSPHERE-CLIMATE SYSTEM

Marc Parlange, Gabriel George Katul, Chad Higgins

The role of evapotranspiration (ET) in the global, continental, regional, and local water cycles is reviewed. Elevated atmospheric CO2, air temperature, vapor pressure deficit (D), turbulent transport, radiative transfer, and reduced soil moisture all impa ...

2012

Graph Chatbot

Chat with Graph Search

Ask any question about EPFL courses, lectures, exercises, research, news, etc. or try the example questions below.

DISCLAIMER: The Graph Chatbot is not programmed to provide explicit or categorical answers to your questions. Rather, it transforms your questions into API requests that are distributed across the various IT services officially administered by EPFL. Its purpose is solely to collect and recommend relevant references to content that you can explore to help you answer your questions.