Martyn P. Chipperfield
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View article: When will the stratospheric water vapour return to pre-Hunga level?
When will the stratospheric water vapour return to pre-Hunga level? Open
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…
View article: When will the stratospheric water vapour return to pre-Hunga level?
When will the stratospheric water vapour return to pre-Hunga level? Open
View article: Causal inference for stratospheric chemistry: insights into tropical middle stratospheric ozone variability
Causal inference for stratospheric chemistry: insights into tropical middle stratospheric ozone variability Open
This study investigates the coupling between chemical and dynamical processes driving tropical middle stratospheric ozone (O 3 ) variability using a causal inference framework that combines causal discovery with causal effect es…
View article: Understanding drivers and biases of simulated CO emissions by the INFERNO fire model over South America
Understanding drivers and biases of simulated CO emissions by the INFERNO fire model over South America Open
Integrating fire simulation into climate models enhances our understanding of ecosystem-fire-climate interactions, clarifying the role of fire in the carbon cycle and other processes. The Interactive Fires and Emissions algorithm for Natur…
View article: Supplementary material to "Understanding drivers and biases of simulated CO emissions by the INFERNO fire model over South America"
Supplementary material to "Understanding drivers and biases of simulated CO emissions by the INFERNO fire model over South America" Open
View article: Twenty years of global stratospheric fluorine inventories from Atmospheric Chemistry Experiment Fourier Transform Spectrometer (ACE-FTS) measurements
Twenty years of global stratospheric fluorine inventories from Atmospheric Chemistry Experiment Fourier Transform Spectrometer (ACE-FTS) measurements Open
View article: Twenty Years of Global Stratospheric Fluorine Inventories From Atmospheric Chemistry Experiment Fourier Transform Spectrometer (ACE‐FTS) Measurements
Twenty Years of Global Stratospheric Fluorine Inventories From Atmospheric Chemistry Experiment Fourier Transform Spectrometer (ACE‐FTS) Measurements Open
We present fluorine inventories calculated for twenty years (2004–2023) and five latitude bands (82°–60°N, 60°–30°N, 30°N–30°S, 30°–60°S, and 60°–82°S) at altitudes from the surface up to 55 km. The inventories were calculated using the At…
View article: Twenty years of global stratospheric fluorine inventories from Atmospheric Chemistry Experiment Fourier Transform Spectrometer (ACE-FTS) measurements
Twenty years of global stratospheric fluorine inventories from Atmospheric Chemistry Experiment Fourier Transform Spectrometer (ACE-FTS) measurements Open
View article: Growth in Production and Environmental deposition of Trifluoroacetic acid due to Long-lived CFC Replacements and Anaesthetics
Growth in Production and Environmental deposition of Trifluoroacetic acid due to Long-lived CFC Replacements and Anaesthetics Open
View article: First measurements of CFC-12 in 1951 at Jungfraujoch and comparison to current measurements and atmospheric models
First measurements of CFC-12 in 1951 at Jungfraujoch and comparison to current measurements and atmospheric models Open
View article: Evaluating tropospheric nitrogen dioxide in UKCA using OMI satellite retrievals over south and east Asia
Evaluating tropospheric nitrogen dioxide in UKCA using OMI satellite retrievals over south and east Asia Open
We compare tropospheric column nitrogen dioxide (NO2) in the United Kingdom Chemistry and Aerosol (UKCA) model version 11.0 with satellite measurements from NASA's Earth Observing System (EOS) Aura satellite Ozone Monitoring Instrument (OM…
View article: Highlighting the Impact of Anthropogenic OCS Emissions on the Stratospheric Sulfur Budget With In Situ Observations
Highlighting the Impact of Anthropogenic OCS Emissions on the Stratospheric Sulfur Budget With In Situ Observations Open
Carbonyl sulfide (OCS) is an important atmospheric sulfur species that plays a dominant role in the formation of (nonvolcanic) stratospheric sulfate aerosol in the middle stratosphere. Major uncertainties in surface sources and sinks and i…
View article: Causal inference for stratospheric chemistry: insights into tropical middle stratospheric ozone variability
Causal inference for stratospheric chemistry: insights into tropical middle stratospheric ozone variability Open
The critical importance of stratospheric ozone (O3) lies in its function of absorbing harmful ultraviolet solar radiation as well as affecting the thermal structure, and thus the dynamics, of the stratosphere. Understanding stratospheric O…
View article: Large reductions in satellite-derived and modelled European lower-tropospheric ozone during and after the COVID-19 pandemic (2020–2022)
Large reductions in satellite-derived and modelled European lower-tropospheric ozone during and after the COVID-19 pandemic (2020–2022) Open
Activity restrictions during the COVID-19 pandemic caused large-scale reductions in ozone (O3) precursor emissions, which in turn substantially reduced the abundance of tropospheric O3 in the Northern Hemisphere. Satellite records of lower…
View article: Global Optimal Estimation Retrievals of Atmospheric Carbonyl Sulfide Over Water from IASI Measurement Spectra for 2018
Global Optimal Estimation Retrievals of Atmospheric Carbonyl Sulfide Over Water from IASI Measurement Spectra for 2018 Open
Carbonyl sulfide (OCS) is consumed by vegetation during photosynthesis in a one-way hydrolysis reaction, making measuring OCS vegetative uptake a means of inferring and quantifying global gross primary productivity. Recent studies highligh…
View article: The Impact of the Stratospheric Quasi-Biennial Oscillation on Arctic Polar Stratospheric Cloud Occurrence
The Impact of the Stratospheric Quasi-Biennial Oscillation on Arctic Polar Stratospheric Cloud Occurrence Open
Polar stratospheric clouds (PSCs) play a critical role in stratospheric ozone depletion. Previous studies have shown that the quasi-biennial oscillation (QBO) influences the Arctic stratospheric polar vortex and ozone, yet no studies have …
View article: Digitization and calibration of historical solar absorption infrared spectra from the Jungfraujoch site
Digitization and calibration of historical solar absorption infrared spectra from the Jungfraujoch site Open
This study describes the digitization and calibration of historically significant solar absorption spectra recorded at the Jungfraujoch International Scientific Station in the 1950s. Using a homemade Pfund-type grating spectrometer, these …
View article: The Imminent Data Desert: The Future of Stratospheric Monitoring in a Rapidly Changing World
The Imminent Data Desert: The Future of Stratospheric Monitoring in a Rapidly Changing World Open
The Atmospheric Chemistry Experiment–Fourier Transform Spectrometer (ACE-FTS) on SCISAT-1 and Microwave Limb Sounder (MLS) on NASA’s Aura satellite have contributed significantly to understanding the impacts of human activities on the stra…
View article: Hemispheric Asymmetry in Stratospheric Trends of HCl and Ozone: Impact of Chemical Feedback on Ozone Recovery
Hemispheric Asymmetry in Stratospheric Trends of HCl and Ozone: Impact of Chemical Feedback on Ozone Recovery Open
We use trace gas profiles from Atmospheric Chemistry Experiment ‐ Fourier Transform Spectrometer (ACE‐FTS) satellite measurements and the TOMCAT three‐dimensional chemical transport model to diagnose stratospheric trends in O 3 , HCl and N…
View article: Methane emissions from the Nord Stream subsea pipeline leaks
Methane emissions from the Nord Stream subsea pipeline leaks Open
View article: Long-term satellite trends of European lower-tropospheric ozone from 1996–2017
Long-term satellite trends of European lower-tropospheric ozone from 1996–2017 Open
Tropospheric ozone (O3) is a harmful secondary atmospheric pollutant and an important greenhouse gas. Satellite records have shown conflicting long-term tropospheric ozone trends over the globe, including Europe. Here, we present an in-dep…
View article: On the atmospheric budget of 1,2-dichloroethane and its impact on stratospheric chlorine and ozone (2002–2020)
On the atmospheric budget of 1,2-dichloroethane and its impact on stratospheric chlorine and ozone (2002–2020) Open
The chemical compound 1,2-dichloroethane (DCE), or ethylene dichloride, is an industrial very short-lived substance (VSLS) whose major use is as a feedstock in the production chain of polyvinyl chloride (PVC). Like other chlorinated VSLSs,…
View article: Ongoing large ozone depletion in the polar lower stratospheres: the role of increased water vapour
Ongoing large ozone depletion in the polar lower stratospheres: the role of increased water vapour Open
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-…
View article: Twenty years of global stratospheric fluorine inventories from Atmospheric Chemistry Experiment Fourier Transform Spectrometer (ACE-FTS) measurements
Twenty years of global stratospheric fluorine inventories from Atmospheric Chemistry Experiment Fourier Transform Spectrometer (ACE-FTS) measurements Open
View article: Quantifying large methane emissions from the Nord Stream pipeline gas leak of September 2022 using IASI satellite observations and inverse modelling
Quantifying large methane emissions from the Nord Stream pipeline gas leak of September 2022 using IASI satellite observations and inverse modelling Open
The sudden leaks from the Nord Stream gas pipelines, which began on 26 September 2022, released a substantial amount of methane (CH4) into the atmosphere. From the Infrared Atmospheric Sounding Interferometer (IASI) instrument onboard EUME…
View article: Large Reductions in Satellite-Derived and Modelled European Lower Tropospheric Ozone During and After the COVID-19 Pandemic (2020–2022)
Large Reductions in Satellite-Derived and Modelled European Lower Tropospheric Ozone During and After the COVID-19 Pandemic (2020–2022) Open
Activity restrictions during the COVID-19 pandemic caused large reductions in ozone (O3) precursor emissions. Studies showed large O3 reductions in the 2020 spring-summer Northern Hemisphere free troposphere coinciding with this emission r…
View article: Investigation of the impact of satellite vertical sensitivity on long-term retrieved lower-tropospheric ozone trends
Investigation of the impact of satellite vertical sensitivity on long-term retrieved lower-tropospheric ozone trends Open
Ozone is a potent air pollutant in the lower troposphere and an important short-lived climate forcer (SLCF) in the upper troposphere. Studies investigating long-term trends in the tropospheric column ozone (TCO3) have shown large-scale spa…
View article: The impact of El Niño–Southern Oscillation on the total column ozone over the Tibetan Plateau
The impact of El Niño–Southern Oscillation on the total column ozone over the Tibetan Plateau Open
The Tibetan Plateau (TP; approximately 27.5–37.5° N, 75.5–105.5° E) is the highest and largest plateau on Earth with a mean elevation of over 4 km. This special geography causes strong surface solar ultraviolet radiation (UV), with potenti…
View article: Digitization and calibration of historical solar absorption infrared spectra from the Jungfraujoch site
Digitization and calibration of historical solar absorption infrared spectra from the Jungfraujoch site Open
This study describes the digitization and calibration of historically significant solar absorption spectra recorded at the Jungfraujoch International Scientific Station in the 1950s. Using a homemade Pfund-type grating spectrometer, these …
View article: Antarctic Vortex Dehydration in 2023 as a Substantial Removal Pathway for Hunga Tonga‐Hunga Ha'apai Water Vapor
Antarctic Vortex Dehydration in 2023 as a Substantial Removal Pathway for Hunga Tonga‐Hunga Ha'apai Water Vapor Open
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…