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First principle calibration of water vapor Raman lidars

Publications associées (35)

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Development of high efficiency 100% aqueous cobalt electrolyte dye-sensitised solar cells

In this study we report the application of three cobalt redox shuttles in 100% aqueous electrolyte dyesensitised solar cells (DSCs). By using chloride as a counter-ion for cobalt bipyridine, cobalt phenanthroline and cobalt bipyridine pyrazole, the redox s ...

Royal Soc Chemistry2016

Open design of a fixed probe for water quality monitoring in rivers and lakes

Nils Pascal Bonfils

This bachelor project work aims to set up a prototype measurement station in the Sorge (a small river near the EPFL) to collect some data about the water and the environmental conditions. And also make the work reproducible so that someone, somewhere else ...

2016

A new robust oxygen-temperature sensor for aquatic eddy covariance measurements

Alfred Johny Wüest, Hua Li

The fragility of thin Clark-type glass microelectrodes used in aquatic eddy covariance measurements of benthic oxygen fluxes is a challenge when using this powerful technique. This study presents a new fast-responding dual oxygen-temperature sensor for edd ...

Wiley-Blackwell2016

Instrumental correction of the uneven PMT aging effect on the calibration constant of a water vapor Raman lidar

Bertrand Calpini, Valentin Simeonov, Salomon Fastig

The water vapor profile derived from Raman lidar measurements is obtained by taking the ratio of water vapor and nitrogen Raman-shifted signals. The proportionality factor that converts the signal ratio to water vapor/air mixing ratio is referred to as lid ...

Spie-Int Soc Optical Engineering2014

Raman lidars exploit the proportionality between the intensity of scattered by a Raman process laser radiation and the number density of the scattering molecules to derive water vapor mixing ratio profile. Water vapor/air mixing ratio is directly proportio ...

2014

BIOPHYSICAL CONTROLS ON EVAPOTRANSPIRATION: NUMERICAL MODELS AND EXPERIMENTAL OBSERVATIONS

Federico Croci

Water and food are basics of human life, unfortunately climate changes and water pollution have reduced the amount of water available for human uses. In this context the study of the hydrologic cycle is becoming of growing importance in order to optimize t ...

2013

Communication: Growing room temperature ice with graphene

Juan José Segura Sugranes

Water becomes ordered in the form of hexagonal ice at room temperature under controlled humidity conditions upon confinement in the nanometer range between protective graphene sheets and crystalline (111) surfaces with hexagonal symmetry of the alkali eart ...

American Institute of Physics2013

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Accurate estimates of water losses by evaporation from shallow water tables are important for hydrological, agricultural, and climatic purposes. An experiment was conducted in a weighing lysimeter to characterize the diurnal dynamics of evaporation under n ...

Amer Geophysical Union2013

Brine Absorption in Concrete at Low Temperature: Experimental Investigation and Modeling

David Conciatori

An experimental campaign supports a model named TransChlor for bringing liquid water moved by capillary suction and chloride ions into concrete. The principal objective of the experimental campaign is to represent conventional concretes under real conditio ...

American Society of Civil Engineers2011

Brine absorption in concrete at low temperature: Experimental investigation and modeling

Eugen Brühwiler, David Conciatori

American Society of Civil Engineers2011