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View article: Stratospheric Aerosol layer responses to volcanic and wildfire perturbations
Stratospheric Aerosol layer responses to volcanic and wildfire perturbations Open
The stratospheric aerosol layer plays a critical role in the climate system and is often disrupted by natural phenomena such as volcanic eruptions and extreme wildfire events. These perturbations differ significantly in their injection mag…
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: Impact of Hunga Tonga-Hunga Ha&#8217;apai water vapour on polar vortex dehydration and ozone depletion: Antarctic 2023 and Arctic 2024
Impact of Hunga Tonga-Hunga Ha’apai water vapour on polar vortex dehydration and ozone depletion: Antarctic 2023 and Arctic 2024 Open
The January 2022 eruption of Hunga Tonga-Hunga Ha’apai (HTHH) injected a huge amount (~150 Tg) of water vapour (H2O) into the stratosphere, along with small amount of sulfur dioxide (SO2). Following slow transport in the meridional B…
View article: Antarctic vortex dehydration in 2023 as a substantial removal pathway for Hunga Tonga-Hunga Ha'apai water vapour
Antarctic vortex dehydration in 2023 as a substantial removal pathway for Hunga Tonga-Hunga Ha'apai water vapour Open
The January 2022 eruption of Hunga Tonga-Hunga Ha’apai (HTHH) injected a huge amount (~150 Tg) of water vapour (HO) into the stratosphere, along with small amount of SO. An off-line 3-D chemical transport model (CTM) successfully reproduce…
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: Unexpectedly rapid aerosol formation in the Hunga Tonga plume
Unexpectedly rapid aerosol formation in the Hunga Tonga plume Open
The Hunga Tonga–Hunga Ha’apai (HT-HH) volcanic eruptions on January 13 and 15, 2022, produced a plume with the highest signal in stratospheric aerosol optical depth observed since the eruption of Mt. Pinatubo in 1991. Suites of balloon-bor…
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: UAS Chromatograph for Atmospheric Trace Species (UCATS) – a versatile instrument for trace gas measurements on airborne platforms
UAS Chromatograph for Atmospheric Trace Species (UCATS) – a versatile instrument for trace gas measurements on airborne platforms Open
UCATS (the UAS Chromatograph for Atmospheric Trace Species) was designed and built for observations of important atmospheric trace gases from unmanned aircraft systems (UAS) in the upper troposphere and lower stratosphere (UTLS). Initially…
View article: Stratospheric Aerosol and Gas Experiment III on the International Space Station (SAGE III/ISS) Newly Released V5.2 Validation of Ozone and Water Vapor Data
Stratospheric Aerosol and Gas Experiment III on the International Space Station (SAGE III/ISS) Newly Released V5.2 Validation of Ozone and Water Vapor Data Open
<p>The Stratospheric Aerosol and Gas Experiment III (SAGE III) instrument installed on the International Space Station (ISS) has completed over three and a half years of data collection and production of science data products. The SA…
View article: UAS Chromatograph for Atmospheric TraceSpecies (UCATS)–a versatile instrument for trace gas measurements on airborne platforms
UAS Chromatograph for Atmospheric TraceSpecies (UCATS)–a versatile instrument for trace gas measurements on airborne platforms Open
UCATS (the UAS Chromatograph for Atmospheric Trace Species) was designed and built for observations of important atmospheric trace gases from unmanned aircraft systems (UAS) in the upper troposphere and lower stratosphere (UT/LS). Initiall…
View article: Validation of SAGE III/ISS Solar Occultation Ozone Products With Correlative Satellite and Ground‐Based Measurements
Validation of SAGE III/ISS Solar Occultation Ozone Products With Correlative Satellite and Ground‐Based Measurements Open
The Stratospheric Aerosol and Gas Experiment III on the International Space Station (SAGE III/ISS) was launched on 19 February 2017 and began routine operation in June 2017. The first 2 years of SAGE III/ISS (v5.1) solar occultation ozone …
View article: Validation of SAGE III/ISS Solar Ozone Data with Correlative Satellite and Ground Based Measurements
Validation of SAGE III/ISS Solar Ozone Data with Correlative Satellite and Ground Based Measurements Open
The Stratospheric Aerosol and Gas Experiment III on the International Space Station (SAGE III/ISS) was launched on February 19, 2017 and began routine operation in June 2017. The first two years of SAGE III/ISS (v5.1) solar ozone data were…
View article: Tropospheric water vapor profiles obtained with FTIR: comparison with balloon-borne frost point hygrometers and influence on trace gas retrievals
Tropospheric water vapor profiles obtained with FTIR: comparison with balloon-borne frost point hygrometers and influence on trace gas retrievals Open
Retrievals of vertical profiles of key atmospheric gases provide a critical long-term record from ground-based Fourier transform infrared (FTIR) solar absorption measurements. However, the characterization of the retrieved vertical profile…
View article: Boundary layer ozone in the Northern Colorado Front Range in July–August 2014 during FRAPPE and DISCOVER-AQ from vertical profile measurements
Boundary layer ozone in the Northern Colorado Front Range in July–August 2014 during FRAPPE and DISCOVER-AQ from vertical profile measurements Open
Data from ground-based ozone (O3) vertical profiling platforms operated during the FRAPPE/DISCOVER-AQ campaigns in summer 2014 were used to characterize key processes responsible for establishing O3 profile development in the boundary laye…
View article: Tropospheric water vapor profiles obtained with FTIR: comparison with balloon-borne frost point hygrometers and influence on trace gas retrievals
Tropospheric water vapor profiles obtained with FTIR: comparison with balloon-borne frost point hygrometers and influence on trace gas retrievals Open
Retrievals of vertical profiles of key atmospheric gases provide a critical long-term data record from ground-based Fourier Transform InfraRed (FTIR) solar absorption measurements. However, the characterization of the retrieved vertical pr…
View article: HOVERCAT: a novel aerial system for evaluation of aerosol–cloud interactions
HOVERCAT: a novel aerial system for evaluation of aerosol–cloud interactions Open
Aerosols have a profound impact on cloud microphysics through their ability to serve as ice nucleating particles (INPs). As a result, cloud radiative properties and precipitation processes can be modulated by such aerosol–cloud interaction…
View article: Homogenizing and estimating the uncertainty in NOAA's long-term vertical ozone profile records measured with the electrochemical concentration cell ozonesonde
Homogenizing and estimating the uncertainty in NOAA's long-term vertical ozone profile records measured with the electrochemical concentration cell ozonesonde Open
NOAA's program of long-term monitoring of the vertical distribution of ozone with electrochemical concentration cell (ECC) ozonesondes has undergone a number of changes over the 50-year record. In order to produce a homogenous data set, th…
View article: HOVERCAT: A novel aerial system for evaluation of aerosol-cloud interactions
HOVERCAT: A novel aerial system for evaluation of aerosol-cloud interactions Open
Aerosols have a profound impact on cloud microphysics through their ability to serve as ice nucleating particles (INPs). As a result, cloud radiative properties and precipitation processes are modulated by such aerosol-cloud interactions. …
View article: Homogenizing and Estimating the Uncertainty in NOAA’s Long Term Vertical Ozone Profile Records Measured with the Electrochemical Concentration Cell Ozonesonde
Homogenizing and Estimating the Uncertainty in NOAA’s Long Term Vertical Ozone Profile Records Measured with the Electrochemical Concentration Cell Ozonesonde Open
NOAA’s program of long term monitoring of the vertical distribution of ozone with Electrochemical Concentration Cell (ECC) ozonesondes has undergone a number of changes over the 50 year record. In order to produce a homogenous data set, th…
View article: Recent divergences in stratospheric water vapor measurements by frost pointhygrometers and the Aura Microwave Limb Sounder
Recent divergences in stratospheric water vapor measurements by frost pointhygrometers and the Aura Microwave Limb Sounder Open
Balloon-borne frost point hygrometers (FPs) and the Aura Microwave Limb Sounder (MLS) provide high-quality vertical profile measurements of water vapor in the upper troposphere and lower stratosphere (UTLS). A previous comparison of strato…
View article: Advancements, measurement uncertainties, and recent comparisons of the NOAAfrost point hygrometer
Advancements, measurement uncertainties, and recent comparisons of the NOAAfrost point hygrometer Open
The NOAA frost point hygrometer (FPH) is a balloon-borne instrument flown monthly at three sites to measure water vapor profiles up to 28 km. The FPH record from Boulder, Colorado, is the longest continuous stratospheric water vapor record…
View article: Quantifying wintertime boundary layer ozone production from frequent profile measurements in the Uinta Basin, UT, oil and gas region
Quantifying wintertime boundary layer ozone production from frequent profile measurements in the Uinta Basin, UT, oil and gas region Open
As part of the Uinta Basin Winter Ozone Study, January–February 2013, we conducted 937 tethered balloon‐borne ozone vertical and temperature profiles from three sites in the Uinta Basin, Utah (UB). Emissions from oil and gas operations com…
View article: Recent divergences in stratospheric water vapor measurements by frost point hygrometers and the Aura Microwave Limb Sounder
Recent divergences in stratospheric water vapor measurements by frost point hygrometers and the Aura Microwave Limb Sounder Open
Balloon-borne frost point hygrometers (FPs) and the Aura Microwave Limb Sounder (MLS) provide high-quality vertical profile measurements of water vapor in the upper troposphere and lower stratosphere (UTLS). A previous comparison of strato…
View article: Advancements, measurement uncertainties, and recent comparisons of the NOAA frostpoint hygrometer
Advancements, measurement uncertainties, and recent comparisons of the NOAA frostpoint hygrometer Open
The NOAA frostpoint hygrometer (FPH) is a balloon borne instrument flown monthly at three sites to measure water vapor profiles up to 28 km. The FPH record from Boulder, Colorado is the longest continuous stratospheric water vapor record. …
View article: Controlled weather balloon ascents and descents for atmospheric research and climate monitoring
Controlled weather balloon ascents and descents for atmospheric research and climate monitoring Open
In situ upper-air measurements are often made with instruments attached to weather balloons launched at the surface and lifted into the stratosphere. Present-day balloon-borne sensors allow near-continuous measurements from the Earth's sur…