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Sandip Dhomse

Senior Research Fellow

EO Data-Model Evaluation

Research interests

Machine learning, satellite data, chemical modelling, climate change and ozone layer.

Recent publications

Causal inference for quantifying chemical–dynamical pathways controlling tropical middle stratospheric ozone variability. 2026-06-12

Evaluation of stratospheric transport in three generations of Chemistry-Climate Models. 2026-04-21

Supplementary material to "TCOM-CFC11 and TCOM-CFC12: A Gap-Free, Observationally Constrained Global Dataset of Stratospheric CFC-11 and CFC-12 Profiles (v2.0)". 2026-03-19

TCOM-CFC11 and TCOM-CFC12: A Gap-Free, Observationally Constrained Global Dataset of Stratospheric CFC-11 and CFC-12 Profiles (v2.0). 2026-03-19

An assessment of the stratospheric temperature response to volcanic sulfate injections from recent Model Intercomparison Projects. 2026-03-14

Measurements and interactive modeling of the 1960s stratospheric aerosol layer. 2026-03-14

Residence time of Hunga stratospheric water vapour perturbation quantified at 9 years. 2026-03-14

  Machine Learning For Atmospheric Chemistry: Creating Global, Gap-Free Stratospheric Datasets for Montreal Protocol Assessments. 2026-03-13

Analysis of Antarctic ozone trends from 1979 to 2023. 2026-02-10

Residence time of Hunga stratospheric water vapour perturbation quantified at 9 years. 2026-01-24

Evaluation of stratospheric transport in three generations of Chemistry-Climate Models. 2026-01-13

Supplementary material to "Evaluation of stratospheric transport in three generations of Chemistry-Climate Models". 2026-01-13

Lagged ENSO teleconnection mechanisms driving Antarctic stratospheric ozone depletion variability. 2026-01

Stratospheric Chemistry Topics | Overview. 2026

Assessing the stratospheric temperature response to volcanic sulfate injections by Mt. Pinatubo: insights from the Interactive Stratospheric Aerosol Model Intercomparison Project. 2025-12-05

When will the stratospheric water vapour return to pre-Hunga level?. 2025-10-31

Assessing the stratospheric temperature response to volcanic sulfate injections: insights from a multi-model framework. 2025-03-18

From data to discovery: understanding tropical middle stratospheric ozone variability through causal inference. 2025-03-18

Machine Learning to Construct Daily, Gap-Free, Long-Term Stratospheric Trace Gases Data Sets. 2025-03-18

The progression and global dispersion of the Hunga aerosol cloud, and influence from co-emitted water vapour, aligned to the APARC Hunga impacts report. 2025-03-18

 The impact of the 2022 Hunga water-rich eruption on polar stratospheric clouds, chlorine activation and ozone depletion. 2025-03-15

Ongoing large ozone depletion in the polar lower stratospheres: the role of increased water vapour. 2025

Record High March 2024 Arctic Total Column Ozone. 2024-09-28

Investigation of the impact of satellite vertical sensitivity on long-term retrieved lower-tropospheric ozone trends. 2024-08-22

Record high March 2024 Arctic total column ozone. 2024-07-12

Antarctic Vortex Dehydration in 2023 as a Substantial Removal Pathway for Hunga Tonga‐Hunga Ha'apai Water Vapor. 2024-04-28

Investigating Zonal Asymmetries in Stratospheric Ozone Trends From Satellite Limb Observations and a Chemical Transport Model. 2024-04-28

Quantifying the tropospheric ozone radiative effect and its temporal evolution in the satellite era. 2024-03-22

Quantifying effects of long-range transport of NO₂ over Delhi using back-trajectories and satellite data. 2024-01-19

Investigation of spatial and temporal variability in lower tropospheric ozone from RAL Space UV–Vis satellite products. 2023-12-05

Using machine-learning to construct TOMCAT model and occultation measurement-based stratospheric methane (TCOM-CH4) and nitrous oxide (TCOM-N2O) profile data sets. 2023-11-24

Quantifying stratospheric ozone trends over 1984–2020: a comparison of ordinary and regularized multivariate regression models. 2023-10-16

The Influence of Internal Climate Variability on Stratospheric Water Vapor Increases After Large-Magnitude Explosive Tropical Volcanic Eruptions. 2023-10-11

Using machine-learning to construct TOMCAT model and occultation measurement-based stratospheric methane (TCOM-CH4) and nitrous oxide (TCOM-N2O) profile data sets. 2023-03-29

Interactive stratospheric aerosol models' response to different amounts and altitudes of SO2 injection during the 1991 Pinatubo eruption. 2023-01-19

Comment on "Observation of large and all-season ozone losses over the tropics" [AIP Adv. 12, 075006 (2022)]. 2022-12-08

Effects of reanalysis forcing fields on ozone trends and age of air from a chemical transport model. 2022-08-23

A single-peak-structured solar cycle signal in stratospheric ozone based on Microwave Limb Sounder observations and model simulations. 2022-01-19

ML-TOMCAT: machine-learning-based satellite-corrected global stratospheric ozone profile data set from a chemical transport model. 2021-12-10

Stratospheric Fluorine as a Tracer of Circulation Changes: Comparison Between Infrared Remote‐Sensing Observations and Simulations With Five Modern Reanalyses. 2021-10-16

Recovery of the first ever multi-year lidar dataset of the stratospheric aerosol layer, from Lexington, MA, and Fairbanks, AK, January 1964 to July 1965. 2021-09-08

Fifteen Years of HFC-134a Satellite Observations: Comparisons With SLIMCAT Calculations. 2021-04-27

Unprecedented Spring 2020 Ozone Depletion in the Context of 20 Years of Measurements at Eureka, Canada. 2021-04-27

COVID-19 lockdown-induced changes in NO2 levels across India observed by multi-satellite and surface observations. 2021-04-01

The Unusual Stratospheric Arctic Winter 2019/20: Chemical Ozone Loss From Satellite Observations and TOMCAT Chemical Transport Model. 2021-03-27

Model physics and chemistry causing intermodel disagreement within the VolMIP-Tambora Interactive Stratospheric Aerosol ensemble. 2021-03-04

Evaluating the simulated radiative forcings, aerosol properties, and stratospheric warmings from the 1963 Mt Agung, 1982 El Chichón, and 1991 Mt Pinatubo volcanic aerosol clouds. 2020-11-13

Reconciling the climate and ozone response to the 1257 CE Mount Samalas eruption. 2020-10-27

COVID-19 lockdown-induced changes in NO2 levels across India observed by multi-satellite and surface observations. 2020-10-13

Supplementary material to "COVID-19 lockdown induced changes in NO2 levels across India observed by multi-satellite and surface observations". 2020-10-13

Model physics and chemistry causing intermodel disagreement within the VolMIP-Tambora Interactive Stratospheric Aerosol ensemble. 2020-09-14

Analysis and attribution of total column ozone changes over the Tibetan Plateau during 1979–2017. 2020-07-22

Modelling the potential impacts of the recent, unexpected increase in CFC-11 emissions on total column ozone recovery. 2020-06-19

Supplementary material to "Evaluating the simulated radiative forcings, aerosol properties and stratospheric warmings from the 1963 Agung, 1982 El Chichón and 1991 Mt Pinatubo volcanic aerosol clouds". 2020-05-06

A recent slowdown in the decline of CFC-11 concentrations in the upper troposphere. 2020-05-01

Description and Evaluation of the specified-dynamics experiment in the Chemistry-Climate Model Initiative. 2020-03-31

Description and evaluation of the UKCA stratosphere–troposphere chemistry scheme (StratTrop vn 1.0) implemented in UKESM1. 2020-03-17

Delay in recovery of the Antarctic ozone hole from unexpected CFC-11 emissions. 2019-12-19

The effect of atmospheric nudging on the stratospheric residual circulation in chemistry–climate models. 2019-09-13

Clear-sky ultraviolet radiation modelling using output from the Chemistry Climate Model Initiative. 2019-08-12

Large Impacts, Past and Future, of Ozone-Depleting Substances on Brewer-Dobson Circulation Trends: A Multimodel Assessment. 2019-07-16

Recent Trends in Stratospheric Chlorine From Very Short‐Lived Substances. 2019-02-27

Phosgene in the Upper Troposphere and Lower Stratosphere: A Marker for Product Gas Injection Due to Chlorine‐Containing Very Short Lived Substances. 2019-02-14

Exploring How Eruption Source Parameters Affect Volcanic Radiative Forcing Using Statistical Emulation. 2019-01-27

Dynamically controlled ozone decline in the tropical mid-stratosphere observed by SCIAMACHY. 2019-01-22

Stratospheric ozone loss in the Arctic winters between 2005 and 2013 derived with ACE-FTS measurements. 2019-01-16

Ultraviolet radiation modelling using output from the Chemistry Climate Model Initiative.. 2019

Revisiting the mystery of recent stratospheric temperature trends. 2018-09-28

A measurement-based verification framework for UK greenhouse gas emissions: an overview of the Greenhouse gAs Uk and Global Emissions (GAUGE) project. 2018-08-17

Age of air as a diagnostic for transport timescales in global models. 2018-08-03

The Interactive Stratospheric Aerosol Model Intercomparison Project (ISA-MIP): motivation and experimental design. 2018-07-05

On the Cause of Recent Variations in Lower Stratospheric Ozone. 2018-06-25

Influence of the wintertime North Atlantic Oscillation on European tropospheric composition: an observational and modelling study. 2018-06-15

Stratospheric Injection of Brominated Very Short‐Lived Substances: Aircraft Observations in the Western Pacific and Representation in Global Models. 2018-05-27

An updated version of a gap-free monthly mean zonal mean ozone database. 2018-05-04

Tropospheric jet response to Antarctic ozone depletion: An update with Chemistry-Climate Model Initiative (CCMI) models. 2018-05

Ozone sensitivity to varying greenhouse gases and ozone-depleting substances in CCMI-1 simulations. 2018-01-29

A refined method for calculating equivalent effective stratospheric chlorine. 2018-01-19

Stratospheric ozone loss over the Eurasian continent induced by the polar vortex shift. 2018-01-15

The Interactive Stratospheric Aerosol Model Intercomparison Project (ISA-MIP): Motivation and experimental design. 2018-01-09

Influence of the North Atlantic Oscillation on European tropospheric composition: an observational and modelling study. 2017-12-18

Deriving Global OH Abundance and Atmospheric Lifetimes for Long-Lived Gases: A Search for CH 3 CCl 3 Alternatives. 2017-11-16

Erratum: Strong constraints on aerosol–cloud interactions from volcanic eruptions. 2017-11-09

Meteoric Smoke Deposition in the Polar Regions: A Comparison of Measurements With Global Atmospheric Models. 2017-10-27

Detecting recovery of the stratospheric ozone layer. 2017-09-14

The increasing threat to stratospheric ozone from dichloromethane. 2017-06-27

Strong constraints on aerosol–cloud interactions from volcanic eruptions. 2017-06-22

Review of the global models used within phase 1 of the Chemistry–Climate Model Initiative (CCMI). 2017-02-13

Determination of the atmospheric lifetime and global warming potential of sulfur hexafluoride using a three-dimensional model. 2017-01-20

Preliminary observations and simulation of nocturnal variations of airglow temperature and emission rates at Pune (18.5°N), India. 2016-11

Atmospheric lifetimes, infrared absorption spectra, radiative forcings and global warming potentials of NF3 and CF3CF2Cl (CFC-115). 2016-09-14

Review of the global models used within the Chemistry-Climate Model Initiative (CCMI). 2016-09-14

Determination of the atmospheric lifetime and global warming potential of sulphur hexafluoride using a three-dimensional model. 2016-08-18

Model Sensitivity Studies of the Decrease in Atmospheric Carbon Tetrachloride. 2016-08-18

The Model Intercomparison Project on the climatic response to Volcanic forcing (VolMIP): experimental design and forcing input data for CMIP6. 2016-08-17

A multi-model intercomparison of halogenated very short-lived substances (TransCom-VSLS): linking oceanic emissions and tropospheric transport for a reconciled estimate of the stratospheric source gas injection of bromine. 2016

A multi-model intercomparison of halogenated very short-lived substances (TransCom-VSLS): linking oceanic emissions and tropospheric transport for a reconciled estimate of the stratospheric source gas injection of bromine. 2016

Evolving particle size is the key to improved volcanic forcings. 2015-12

Growth in stratospheric chlorine from short-lived chemicals not controlled by the Montreal Protocol. 2015-06-16

Efficiency of short-lived halogens at influencing climate through depletion of stratospheric ozone. 2015-03

Quantifying the ozone and ultraviolet benefits already achieved by the Montreal Protocol. 2015

Satellite observations of stratospheric hydrogen fluoride and comparisons with SLIMCAT calculations. 2015

Recent Northern Hemisphere stratospheric HCl increase due to atmospheric circulation changes. 2014-11-06

Aerosol microphysics simulations of the Mt.~Pinatubo eruption with the UM-UKCA composition-climate model. 2014-10-24

Climate warming and decreasing total column ozone over the Tibetan Plateau during winter and spring. 2014-09

Effects of meridional sea surface temperature changes on stratospheric temperature and circulation. 2014-07

Aerosol microphysics simulations of the Mt. Pinatubo eruption with the UKCA composition-climate model. 2014

Constraining the N2O5 UV absorption cross section from spectroscopic trace gas measurements in the tropical mid-stratosphere. 2014

Constraining the N2O5 UV absorption cross-section from spectroscopic trace gas measurements in the tropical mid-stratosphere. 2014

Satellite observations of stratospheric carbonyl fluoride. 2014

Stratospheric ozone depletion from future nitrous oxide increases. 2014

Direct and indirect effects of solar variations on stratospheric ozone and temperature. 2013-11

Stratospheric O3 changes during 2001–2010: the small role of solar flux variations in a CTM. 2013-05-08

Climate impact of stratospheric ozone recovery. 2013-01-01

Global stratospheric chlorine inventories for 2004–2009 from Atmospheric Chemistry Experiment Fourier Transform Spectrometer (ACE-FTS) measurements. 2013

Stratospheric O3 changes during 2001-2010: the small role of solar flux variations in a chemical transport model. 2013

Modelling future changes to the stratospheric source gas injection of biogenic bromocarbons. 2012-10-28

Interactions of meteoric smoke particles with sulphuric acid in the Earth's stratosphere. 2012-05-16

Solar response in tropical stratospheric ozone: a 3-D chemical transport model study using ERA reanalyses. 2011-12-16

Using transport diagnostics to understand chemistry climate model ozone simulations. 2011-09-09

A study of upper troposphere and lower stratosphere water vapor above the Tibetan Plateau using AIRS and MLS data. 2011

Multimodel assessment of the factors driving stratospheric ozone evolution over the 21st century. 2010-12-21

Decline and recovery of total column ozone using a multimodel time series analysis. 2010-11-04

Impact of stratospheric ozone on Southern Hemisphere circulation change: A multimodel assessment. 2010-10-13

The potential to narrow uncertainty in projections of stratospheric ozone over the 21st century. 2010-10-07

Effects of stratosphere-troposphere chemistry coupling on tropospheric ozone. 2010-09-17

Anthropogenic forcing of the Northern Annular Mode in CCMVal-2 models. 2010-09-08

Review of the formulation of present-generation stratospheric chemistry-climate models and associated external forcings. 2010-08-14

Quantifying uncertainty in projections of stratospheric ozone over the 21st century. 2010-05-06

Chemistry-climate model simulations of 21st century stratospheric climate and circulation changes. 2010

Multi-model assessment of stratospheric ozone return dates and ozone recovery in CCMVal-2 models. 2010

Multimodel assessment of the upper troposphere and lower stratosphere: Extratropics. 2010

Evaluation of balloon and satellite water vapour measurements in the Southern tropical and subtropical UTLS during the HIBISCUS campaign. 2009

The relationship between tropospheric wave forcing and tropical lower stratospheric water vapor. 2008-02-05

Ozone trends at northern mid- and high latitudes – a European perspective. 2008

On the possible causes of recent increases in northern hemispheric total ozone from a statistical analysis of satellite data from 1979 to 2003. 2006-04-13

Ozone Profile Retrieval from Broadband Nadir UV/Visible Satellite Spectra: How Accurate is the Tropospheric Profile?. 2004

Dynamical control of NH and SH winter/spring total ozone from GOME observations in 1995–2002. 2003

A Single-Peak-Structured Solar Cycle Signal in Stratospheric Ozone based on Microwave Limb Sounder Observations and Model Simulations.

Age of Air as a diagnostic for transport time-scales in global models.

Analysing changes in stratospheric water vapour following Pinatubo-like volcanic eruption using UK Earth System Model.

Analysis of the global atmospheric background sulfur budget in a multi-model framework.

Analysis of the global atmospheric background sulfur budget in a multi-model framework.

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

Arctic ozone depletion in 2019/20: Roles of chemistry, dynamics and the Montreal Protocol.

Arctic ozone depletion in 2019/20: Roles of chemistry, dynamics and the Montreal Protocol.

Assessment of direct radiative forcing due to secondary organic aerosol over China with a regional climate model.

Causal inference for stratospheric chemistry: insights into tropical middle stratospheric ozone variability.

Causal inference for stratospheric chemistry: insights into tropical middle stratospheric ozone variability.

Data rescue of stratospheric aerosol observations from lidar at Lexington, MA, and Fairbanks, AK, January 1964 to July 1965..

Decreases in wintertime total column ozone over the Tibetan Plateau during 1979–2017.

Description and Evaluation of the Specified-Dynamics Experiment in the Chemistry-Climate Model Initiative (CCMI).

Description and evaluation of the UKCA stratosphere-troposphere chemistry scheme (StratTrop vn 1.0) implemented in UKESM1.

Effects of Reanalysis Forcing Fields on Ozone Trends from a Chemical Transport Model.

Estimates of Ozone Return Dates from Chemistry-Climate Model Initiative Simulations.

Evaluating the Uncertainties of the Global Atmospheric Sulphur Budget in a Multi-Model Framework.

Evaluating the simulated radiative forcings, aerosol properties and stratospheric warmings from the 1963 Agung, 1982 El Chichón and 1991 Mt Pinatubo volcanic aerosol clouds.

Evaluation of a regional air quality model using satellite column NO2: treatment of observation errors and model boundary conditions and emissions.

Hunga Tonga–Hunga Ha′apai Volcano Impact Model Observation Comparison (HTHH-MOC) project: experiment protocol and model descriptions.

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

Impacts of stratospheric dynamical variability on total inorganic fluorine from observations and models constrained by state-of-the-art reanalyses.

Impact of ECMWF ERA-Interim and ERA5 reanalysis on the simulated tracer transport and polar ozone loss using a chemical transport model TOMCAT/SLIMCAT.

Interactions of meteoric smoke particles with sulphuric acid in the Earth's stratosphere.

Interactive Stratospheric Aerosol models response to different amount and altitude of SO<sub>2</sub> injections during the 1991 Pinatubo eruption.

Interactive Stratospheric Aerosol models response to different sulfur injection amount and altitude distribution during volcanic eruption.

Interactive and microphysical simulations of the stratospheric aerosol layer: Global size distribution variation after moderate volcanic enhancement.

Interactive stratospheric aerosol simulations of the Hunga-Tonga aerosol cloud re: stronger than expected observed mid-visible stratospheric AOD.

Investigating zonal asymmetries in stratospheric ozone trends from satellite limb observations and a chemical transport model.

Investigating zonal asymmetry in stratospheric ozone trends at northern high latitudes using satellite limb observations and CTM simulations.

Investigation of satellite vertical sensitivity on long-term retrieved lower tropospheric ozone trends.

Investigation of spatial and temporal variability in lower tropospheric ozone from RAL Space UV-Vis satellite products.

Long-lived ultra-fine ash particles within the Pinatubo volcanic aerosol cloud and their potential impact on its global dispersion and radiative forcings.

ML-TOMCAT: Machine-Learning-Based Satellite-Corrected Global Stratospheric Ozone Profile Dataset from a Chemical Transport Model.

Machine-Learning-Based Satellite-Corrected Global Stratospheric Ozone Profile Dataset from a Chemical Transport Model.

Modelling the potential impacts of the recent, unexpected increase in CFC-11 emissions on total column ozone recovery.

Modelling the progression in the mix of particles within the Arctic stratospheric aerosol layer, including the seasonal source of meteoric smoke particles from the Arctic winter polar vortex.

On the possible causes of recent increases in NH total ozone from a statistical analysis of satellite data from 1979 to 2003.

Ozone sensitivity to varying greenhouse gases and ozone-depleting substances in CCMI simulations.

Post-eruption tropical water vapour transport: Pinatubo and Hunga Tonga-Hunga Ha’apai.

Quantifying effects of long-range transport of air pollutants over Delhi using back-trajectories and satellite NO<sub>2</sub> data.

Quantifying the tropospheric ozone radiative effect and its temporal evolution in the satellite-era.

Record springtime stratospheric ozone depletion at 80°N in 2020.

Recovered measurements of the 1960s stratospheric aerosol layer and UM-UKCA model experiments to assess the Mar 1963 Agung, Sep 1965 Taal and Aug 1966 Awu volcanic aerosol clouds.

Recovered measurements of the 1960s stratospheric aerosol layer for new constraints for volcanic forcing in the years after 1963 Agung.

Recovery of the first ever multi-year lidar dataset of the stratospheric aerosol layer, from Lexington, MA, and Fairbanks, AK, January 1964 to July 1965.

Retrieval of water vapor vertical distributions in the upper troposphere and the lower stratosphere from SCIAMACHY limb measurements.

Revising the 11-year Solar Cycle Response in Stratospheric Ozone Using an Ensemble of Lasso and Ridge Regression Models.

Seventeen years of ozone sounding at L'Aquila, Italy: evidence of mid-latitude stratospheric ozone recovery and tropospheric profile changes.

Stratospheric ozone trends and attribution over 1984-2020 based on satellite data and model simulations with a regularised regression method.

Stratospheric ozone trends and attribution over 1984–2020 using ordinary and regularised multivariate regression models.

The Model Intercomparison Project on the climatic response to Volcanic forcing (VolMIP): Experimental design and forcing input data.

The Recovery and Re-Calibration of a 13-Month Aerosol Extinction Profiles Dataset from Searchlight Observations from New Mexico, after the 1963 Agung Eruption.

The effect of atmospheric nudging on the stratospheric residual circulation in chemistry-climate models.

The impact of iodine on ozone trends in the lower stratosphere.

The prevalence of meteoric-sulphuric particles within the stratospheric aerosol layer.

The recovery and re-calibration of a 13-month aerosol extinction profiles dataset from searchlight observations from New Mexico, after the 1963 Agung eruption.

The relationship between tropospheric wave forcing and tropical lower stratospheric water vapor.

The unusual stratospheric Arctic winter 2019/20: Chemical ozone loss from satellite observations and TOMCAT chemical transport model.

Uncertainties in recent tropical stratospheric and tropospheric ozone changes restrict our understanding of future total column ozone change.

Unprecedented spring 2020 ozone depletion in the context of 20 years of measurements at Eureka, Canada.

Unprecedented spring 2020 ozone depletion in the context of 20 years of measurements at Eureka, Canada.

Using machine-learning to construct long-term, gap-free stratospheric species profile data sets based on satellite occultation measurements and TOMCAT 3-D model.

[Session AS3.25] The prevalence of meteoric-sulphuric particles within the stratospheric aerosol layer.