Emmanuel Rivière
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View article: Pico-Light H <sub>2</sub> O: intercomparison of in situ water vapour measurements during the AsA 2022 campaign
Pico-Light H <sub>2</sub> O: intercomparison of in situ water vapour measurements during the AsA 2022 campaign Open
The mid-infrared lightweight tunable diode laser hygrometer, “Pico-Light H2O”, the successor to Pico-SDLA H2O, is presented and its performances are evaluated during the AsA 2022 balloon-borne intercomparison campaign conducted at the CNES…
View article: Comment on amt-2023-191
Comment on amt-2023-191 Open
Abstract. The mid-infrared lightweight stratospheric hygrometer, “Pico-Light H2O”, the successor of Pico-SDLA H2O, is presented and its performances are evaluated during the AsA 2022 balloon-borne intercomparison campaign conducted at the …
View article: Pico-Light H <sub>2</sub> O: Intercomparison of in situ water vapour measurements during the AsA 2022 campaign
Pico-Light H <sub>2</sub> O: Intercomparison of in situ water vapour measurements during the AsA 2022 campaign Open
The mid-infrared lightweight stratospheric hygrometer, “Pico-Light H2O”, the successor of Pico-SDLA H2O, is presented and its performances are evaluated during the AsA 2022 balloon-borne intercomparison campaign conducted at the CNES Aire-…
View article: Solar occultations observed by VIMS-IR: What haze and methane profiles reveal about Titan's atmospheric dynamics and climate.
Solar occultations observed by VIMS-IR: What haze and methane profiles reveal about Titan's atmospheric dynamics and climate. Open
<p>Titan, the largest satellite of Saturn, has a dense atmosphere mainly composed of nitrogen and methane at a percent level. These two molecules generate a complex prebiotic chemistry, a global haze, most of the cloud cover and the …
View article: On the cross-tropopause transport of water by tropical convective overshoots: a mesoscale modelling study constrained by in situ observations during the TRO-Pico field campaign in Brazil
On the cross-tropopause transport of water by tropical convective overshoots: a mesoscale modelling study constrained by in situ observations during the TRO-Pico field campaign in Brazil Open
Deep convection overshooting the lowermost stratosphere is well known for its role in the local stratospheric water vapour (WV) budget. While it is seldom the case, local enhancement of WV associated with stratospheric overshoots is often …
View article: Convection behind the Humidification of Titan’s Stratosphere
Convection behind the Humidification of Titan’s Stratosphere Open
On Titan, methane is responsible for the complex prebiotic chemistry, the global haze, most of the cloud cover, and the rainfall that models the landscape. Its sources are located in liquid reservoirs at and below the surface, and its sink…
View article: Comment on acp-2021-543
Comment on acp-2021-543 Open
Abstract. Deep convection overshooting the lowermost stratosphere is well known for its role in the local stratospheric water vapour (WV) budget. While it is seldom the case, local enhancements of WV associated with stratospheric overshoot…
View article: Comment on acp-2021-543
Comment on acp-2021-543 Open
Abstract. Deep convection overshooting the lowermost stratosphere is well known for its role in the local stratospheric water vapour (WV) budget. While it is seldom the case, local enhancement of WV associated with stratospheric overshoots…
View article: On the cross-tropopause transport of water by tropical convective overshoots: a mesoscale modelling study constrained by in-situ observations during TRO-Pico field campaign in Brazil
On the cross-tropopause transport of water by tropical convective overshoots: a mesoscale modelling study constrained by in-situ observations during TRO-Pico field campaign in Brazil Open
Deep convection overshooting the lowermost stratosphere is well known for its role in the local stratospheric water vapour (WV) budget. While it is seldom the case, local enhancements of WV associated with stratospheric overshoots are ofte…
View article: Maternal Ambient Exposure to Atmospheric Pollutants during Pregnancy and Offspring Term Birth Weight in the Nationwide ELFE Cohort
Maternal Ambient Exposure to Atmospheric Pollutants during Pregnancy and Offspring Term Birth Weight in the Nationwide ELFE Cohort Open
Background: Studies have reported associations between maternal exposure to atmospheric pollution and lower birth weight. However, the evidence is not consistent and uncertainties remain. We used advanced statistical approaches to robustly…
View article: Towards a nudging of stratospheric overshoots in the 3D mesoscale BRAMS model
Towards a nudging of stratospheric overshoots in the 3D mesoscale BRAMS model Open
<p>Water repartition in the stratosphere is a key compound in the atmospheric chemical and<br>radiative equilibrium. Since the 80&#8217;s, an increase of the water concentration in the<br>stratosphere has been observe…
View article: Equatorial belt vapour measurements in the upper TTL under superpressure balloon during STRATEOLE 2 pre-campaign: tape recorder effect, role of waves and deep convection.
Equatorial belt vapour measurements in the upper TTL under superpressure balloon during STRATEOLE 2 pre-campaign: tape recorder effect, role of waves and deep convection. Open
<p>STRATEOLE 2 is a French-American project based on superpressure balloon borne measurements to study dynamics and processes in the TTL and the lower stratosphere of equatorial regions. One single flight of these balloons (of a dura…
View article: Simultaneous Roadside and Urban Background Measurements of Submicron Aerosol Number Concentration and Size Distribution (in the Range 20–800 nm), along with Chemical Composition in Strasbourg, France
Simultaneous Roadside and Urban Background Measurements of Submicron Aerosol Number Concentration and Size Distribution (in the Range 20–800 nm), along with Chemical Composition in Strasbourg, France Open
The adverse health impact of particles and ultrafine particles (UFP) is proven, highlighting the need of measuring the particle number concentration (PNC) dominated by UFP. So far, PNC had never been measured in the Strasbourg urban area (…
View article: A lightweight balloon-borne mid-infrared hygrometer to probe the middle atmosphere: Pico-Light H&lt;sub&gt;2&lt;/sub&gt;O. Comparison with Aura-MLS v4 and v5 satellite measurements
A lightweight balloon-borne mid-infrared hygrometer to probe the middle atmosphere: Pico-Light H<sub>2</sub>O. Comparison with Aura-MLS v4 and v5 satellite measurements Open
Newly developed mid-infrared lightweight hygrometer, Pico-Light H2O has been tested in-flight on February 19, 2019 and October 16, 2019. It has been flown under a 1200 g rubber balloon operated by CNES from the Aire-sur-l'Adour facility (F…
View article: Sources and Geographical Origins of PM10 in Metz (France) Using Oxalate as a Marker of Secondary Organic Aerosols by Positive Matrix Factorization Analysis
Sources and Geographical Origins of PM10 in Metz (France) Using Oxalate as a Marker of Secondary Organic Aerosols by Positive Matrix Factorization Analysis Open
An original source apportionment study was conducted on atmospheric particles (PM10) collected in Metz, one of the largest cities of Eastern France. A Positive matrix factorization (PMF) analysis was applied to a sampling filter-based chem…
View article: FATE OF ATMOSPHERIC DUST FROM MINING ACTIVITIES IN NEW CALEDONIA AND THE IMPACT ON THE NICKEL CONTENT OF LICHEN
FATE OF ATMOSPHERIC DUST FROM MINING ACTIVITIES IN NEW CALEDONIA AND THE IMPACT ON THE NICKEL CONTENT OF LICHEN Open
International audience
View article: Modeling the TTL at Continental Scale for a Wet Season: An Evaluation of the BRAMS Mesoscale Model Using TRO‐Pico Campaign, and Measurements From Airborne and Spaceborne Sensors
Modeling the TTL at Continental Scale for a Wet Season: An Evaluation of the BRAMS Mesoscale Model Using TRO‐Pico Campaign, and Measurements From Airborne and Spaceborne Sensors Open
In order to better understand the water vapor (WV) intrusion into the tropical stratosphere, a mesoscale simulation of the tropical tropopause layer using the BRAMS (Brazilian version of Regional Atmospheric Modeling System (RAMS)) model i…
View article: Evidence of horizontal and vertical transport of water in the SouthernHemisphere tropical tropopause layer (TTL) from high-resolution balloonobservations
Evidence of horizontal and vertical transport of water in the SouthernHemisphere tropical tropopause layer (TTL) from high-resolution balloonobservations Open
High-resolution in situ balloon measurements of water vapour, aerosol, methane and temperature in the upper tropical tropopause layer (TTL) and lower stratosphere are used to evaluate the processes affecting the stratospheric water budget:…
View article: Evaluation of water vapour assimilation in the tropical upper troposphereand lower stratosphere by a chemical transport model
Evaluation of water vapour assimilation in the tropical upper troposphereand lower stratosphere by a chemical transport model Open
The present analysis deals with one of the most debated aspects of the studies on the upper troposphere/lower stratosphere (UTLS), namely the budget of water vapour (H2O) at the tropical tropopause. Within the French project “Multiscale wa…
View article: Intercomparison of in situ water vapor balloon-borne measurements from Pico-SDLA H <sub>2</sub> O and FLASH-B in the tropical UTLS
Intercomparison of in situ water vapor balloon-borne measurements from Pico-SDLA H <sub>2</sub> O and FLASH-B in the tropical UTLS Open
In this paper we compare water vapor mixing ratio measurements from two quasi-parallel flights of the Pico-SDLA H2O and FLASH-B hygrometers. The measurements were made on 10 February 2013 and 13 March 2012, respectively, in the tropics nea…