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When will the stratospheric water vapour return to pre-Hunga level? Open

Xin Zhou, Quanliang Chen, Wuhu Feng, Saffron Heddell, Sandip Dhomse , et al. · 2025

The January 2022 eruption of the Hunga volcano (20°S), the most explosive in the past 30 years, injected 150 Tg of water vapour into the middle atmosphere, leading to an increase in the stratospheric water burden of 10%, unprecedented in t…

When will the stratospheric water vapour return to pre-Hunga level? Open

Xin Zhou, Quanliang Chen, Wuhu Feng, Saffron Heddell, Sandip Dhomse , et al. · 2025

The Payload for Ultrahigh Energy Observations: Detector Design and Implementation Open

Q. Abarr, P. Allison, Jaime Álvarez-Muñiz, Juan Ammerman Yebra, T. Anderson , et al. · 2025

Searching for Ultrahigh Energy Neutrinos with PUEO Open

Quin Abarr, P. Allison, Jaime Álvarez-Muñiz, Juan Ammerman Yebra, T. Anderson , et al. · 2025

Ongoing large ozone depletion in the polar lower stratospheres: the role of increased water vapour Open

Martyn P. Chipperfield, Saffron Heddell, Sandip Dhomse, Wuhu Feng, Shujie Chang , et al. · 2024

We use the TOMCAT 3-D atmospheric model to investigate the impacts of a Hunga-like volcanic eruption preceding a very cold Arctic winter such as that of 2019/2020, on ozone. Around an additional 16 DU of ozone depletion would occur in mid-…

The Low Frequency Instrument for the Payload for Ultrahigh Energy Observations (PUEO) Open

Y. Ku, Q. Abarr, P. Allison, Jaime Álvarez-Muñiz, Juan Ammerman Yebra , et al. · 2024

The Payload for Ultrahigh Energy Observations (PUEO) long-duration balloon experiment is designed to observe ultra-high energy (UHE) neutrinos with energies above EeV. PUEO consists of a Main Instrument (MI) on a fixed gondola and a Low Fr…

Design of the PUEO Payload Open

Keith McBride, Q. Abarr, P. Allison, Jaime Álvarez-Muñiz, Juan Ammerman Yebra , et al. · 2024

The primary science goals of the Payload for Ultrahigh Energy Observations (PUEO) are testing models of both candidate sources of ultrahigh-energy neutrinos (UHEN) and the propagation of ultrahigh-energy cosmic rays. PUEO is a balloon-born…

Satellite-observed relationships between land cover, burned area, and atmospheric composition over the southern Amazon Open

Emma Sands, Richard J. Pope, Ruth M. Doherty, Fiona M. O’Connor, Chris Wilson , et al. · 2024

Land surface changes can have substantial impacts on biosphere–atmosphere interactions. In South America, rainforests abundantly emit biogenic volatile organic compounds (BVOCs), which, when coupled with pyrogenic emissions from deforestat…

Comment on egusphere-2024-503 Open

Emma Sands, Richard J. Pope, Ruth M. Doherty, Fiona M. O’Connor, Chris Wilson , et al. · 2024

Abstract. Land surface changes can have substantial impacts on the interactions between the biosphere and atmosphere. In South America, rainforests abundantly emit biogenic volatile organic compounds (BVOCs), which coupled…

Comment on egusphere-2024-503 Open

Emma Sands, Richard J. Pope, Ruth M. Doherty, Fiona M. O’Connor, Chris Wilson , et al. · 2024

Abstract. Land surface changes can have substantial impacts on the interactions between the biosphere and atmosphere. In South America, rainforests abundantly emit biogenic volatile organic compounds (BVOCs), which coupled…

Antarctic Vortex Dehydration in 2023 as a Substantial Removal Pathway for Hunga Tonga‐Hunga Ha'apai Water Vapor Open

Xin Zhou, Sandip Dhomse, Wuhu Feng, G. W. Mann, Saffron Heddell , et al. · 2024

The January 2022 eruption of Hunga Tonga‐Hunga Ha'apai (HTHH) injected a huge amount (∼150 Tg) of water vapor (H 2 O) into the stratosphere, along with small amount of SO 2 . An off‐line 3‐D chemical transport model (CTM) successfully repr…

Supplementary material to "Satellite-observed relationships between land cover, burned area and atmospheric composition over the southern Amazon" Open

Emma Sands, Richard J. Pope, Ruth M. Doherty, Fiona M. O’Connor, Chris Wilson , et al. · 2024

SupplementS1 Land cover change analysis for dataset and study site choice Initially both the MODIS and the ESA-CCI (ESA, 2017) land cover data were considered due to their global and long-term coverage.Both datasets record a region of high…

Satellite-observed relationships between land cover, burned area and atmospheric composition over the southern Amazon Open

Emma Sands, Richard J. Pope, Ruth M. Doherty, Fiona M. O’Connor, Chris Wilson , et al. · 2024

Land surface changes can have substantial impacts on the interactions between the biosphere and atmosphere. In South America, rainforests abundantly emit biogenic volatile organic compounds (BVOCs), which coupled with pyrogenic emissions f…

Impact of Hunga Tonga-Hunga Ha’apai water vapour on polar vortex dehydration and ozone depletion: Antarctic 2023 and Arctic 2024 Open

Xin Zhou, Saffron Heddell, Sandip Dhomse, Wuhu Feng, G. W. Mann , et al. · 2024

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…

Using satellite observations to examine the role of land cover and fires in driving atmospheric composition over the southern Amazon Open

Emma Sands, Richard J. Pope, Ruth M. Doherty, Fiona M. O’Connor, Chris Wilson , et al. · 2024

We exploit satellite datasets of spatio-temporal distributions of atmospheric composition for the rainforest and savanna region on the southern boundary of the Amazon to understand how its emissions of biogenic volatile organic compounds (…

Antarctic vortex dehydration in 2023 as a substantial removal pathway for Hunga Tonga-Hunga Ha'apai water vapour Open

Xin Zhou, Sandip Dhomse, Wuhu Feng, G. W. Mann, Saffron Heddell , et al. · 2024

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…

Searching for Askaryan Emission from Neutrinos with the Payload for Ultrahigh Energy Observations (PUEO) Open

Q. Abarr, P. Allison, Jaime Álvarez-Muñiz, Juan Ammerman Yebra, T. Anderson , et al. · 2023

The Payload for Ultrahigh Energy Observations (PUEO) is a long-duration balloon payload under construction scheduled to fly over Antarctica in late 2025. PUEO will deploy a broadband interferometric radio telescope pointing down at the ice…

Design of the next-generation ultrahigh energy neutrino observatory PUEO Open

Quin Abarr, P. Allison, Jaime Álvarez-Muñiz, Juan Ammerman Yebra, T. Anderson , et al. · 2023

PUEO (the Payload for Ultrahigh Energy Observations) is a balloon-borne payload designed to detect the impulsive radio signals produced through the Askaryan effect by ultrahigh-energy (UHE) neutrinos (>1 EeV) in the Antarctic ice. Several …

Identifying and Characterizing Air Shower Events with the Payload for Ultrahigh Energy Observations (PUEO) Open

K. Hughes, Q. Abarr, P. Allison, Jaime Álvarez-Muñiz, Juan Ammerman Yebra , et al. · 2023

The Payload for Ultrahigh Energy Observations (PUEO) is a balloon-borne neutrino observatory currently under construction and slated to fly in December 2025. PUEO will be sensitive to both Askaryan radio emission from neutrino interactions…

Updated Simulation of Airborne Neutrino Detectors for the PUEO Experiment Open

William Luszczak, Q. Abarr, P. Allison, Jaime Álvarez-Muñiz, Juan Ammerman Yebra , et al. · 2023

The upcoming Payload for Ultra-high Energy Observations (PUEO) experiment is planned for launch in the 2025/2026 season, and detailed simulation of the experiment is necessary for both the design of the instrument prior to launch, as well …

Comment on amt-2023-86 Open

H. C. Pumphrey · 2023

Abstract. Satellite data records of stratospheric water vapour have been compared to balloon-borne frost point hygrometer (FP) profiles that are coincident in space and time. The satellite data records of 15 different inst…

Comment on egusphere-2022-1404 Open

H. C. Pumphrey · 2022

Abstract. We use a tracer version of the TOMCAT global 3-D chemical transport model to investigate the physical and chemical processes driving the abundance of hydrogen cyanide (HCN) in the troposphere and stratosphere ove…

The Hunga Tonga‐Hunga Ha'apai Hydration of the Stratosphere Open

Luis Millán, M. L. Santee, A. Lambert, N. J. Livesey, Frank Werner , et al. · 2022

Following the 15 January 2022 Hunga Tonga‐Hunga Ha'apai eruption, several trace gases measured by the Aura Microwave Limb Sounder (MLS) displayed anomalous stratospheric values. Trajectories and radiance simulations confirm that the H 2 O,…

Hunga Tonga-Hunga Ha'apai Hydration of the Stratosphere Open

Luis Millán, M. L. Santee, A. Lambert, N. J. Livesey, Frank Werner , et al. · 2022

Earth and Space Science Open Archive This preprint has been submitted to and is under consideration at Geophysical Research Letters. ESSOAr is a venue for early communication or feedback before peer review. Data may be preliminary.Learn mo…

The Hunga Tonga-Hunga Haʻapai hydration of the stratosphere Open

Luis Millán, Lucien Froidevaux, Gloria Manney, A. Lambert, N. J. Livesey , et al. · 2022

<p>Hunga Tonga-Hunga Haʻapai, a submarine volcano in the South Pacific, reached an eruption climax on 15 January 2022. The blast sent a plume of ash well into the stratosphere, triggered tsunami alerts across the world, and …

Comment on acp-2021-1015 Open

H. C. Pumphrey · 2022

Abstract. Smoke from western North American wildfires reached the stratosphere in large amounts in August 2017. Limb-oriented satellite-based sensors are commonly used for studies of wildfire aerosol injected into the stra…

Microwave Limb Sounder (MLS) observations of biomass burning products in the stratosphere from Canadian forest fires in August 2017 Open

H. C. Pumphrey, M. Schwartz, M. L. Santee, G. P. Kablick, Michael Fromm , et al. · 2021

Forest fires in British Columbia in August 2017 caused a pyrocumulonimbus event that injected a polluted air mass into the lower stratosphere. The Microwave Limb Sounder (MLS) on the Aura satellite first observed the polluted air mass on 1…

Comment on acp-2020-840 Open

H. C. Pumphrey · 2021

Australian New Year's PyroCb Impact on Stratospheric Composition Open

M. Schwartz, M. L. Santee, H. C. Pumphrey, G. L. Manney, A. Lambert , et al. · 2020

Following the Australian New Year's pyrocumulonimbus complex between 29 December 2019 and 4 January 2020, the Aura Microwave Limb Sounder (MLS) observed a plume with unprecedented enhancements of H 2 O and biomass‐burning products (CO, HCN…

Recovery and validation of Odin/SMR long-term measurements of mesospheric carbon monoxide Open

Francesco Grieco, Kristell Pérot, D. Murtagh, Patrick Eriksson, Peter Forkman , et al. · 2020

The Sub-Millimetre Radiometer (SMR) on board the Odin satellite performs limb sounding measurements of the middle atmosphere to detect molecular emission from different species. Carbon monoxide (CO) is an important tracer of atmospheric dy…

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