Nicholas Jones
A5028447324- Atmospheric and Environmental Gas Dynamics
- Atmospheric Ozone and Climate
- Atmospheric chemistry and aerosols
- Spectroscopy and Laser Applications
- Air Quality Monitoring and Forecasting
- Methane Hydrates and Related Phenomena
- Calibration and Measurement Techniques
- Fire effects on ecosystems
- Hydrocarbon exploration and reservoir analysis
- Isotope Analysis in Ecology
- Climate variability and models
- Marine and coastal ecosystems
- Advanced Chemical Sensor Technologies
- Geochemistry and Geologic Mapping
- Atmospheric aerosols and clouds
- Air Quality and Health Impacts
- COVID-19 impact on air quality
- Carbon Dioxide Capture Technologies
- SAS software applications and methods
- Vehicle emissions and performance
- Ocean Acidification Effects and Responses
- Meteorological Phenomena and Simulations
- Nuclear Physics and Applications
- Ionosphere and magnetosphere dynamics
- Remote Sensing and Land Use
University of Wollongong
2016-2025
Finnish Meteorological Institute
2024
Integer (United States)
2023
National Institute of Water and Atmospheric Research
1994-2022
Estée Lauder (United States)
2022
German Meteorological Service
2021
European Centre for Medium-Range Weather Forecasts
2020
Cardiff University
2017
Plymouth Marine Laboratory
2008-2009
University of Calgary
2008
The Tropospheric Ozone Assessment Report (TOAR) is an activity of the International Global Atmospheric Chemistry Project. This paper a component report, focusing on present-day distribution and trends tropospheric ozone relevant to climate global atmospheric chemistry model evaluation. Utilizing TOAR surface database, several figures present daytime average at 2702 non-urban monitoring sites, highlighting regions seasons world with greatest levels. Similarly, ozonesonde commercial aircraft...
We present a model study of carbon monoxide for 1988–1997 using the GEOS‐Chem 3‐D driven by assimilated meteorological data, with time‐varying emissions from biomass burning and fossil fuel industry, overhead ozone columns, methane. The hydroxyl radical is calculated interactively chemical parameterization to capture feedbacks. document inventory fuels/industry discuss major uncertainties causes differences other inventories that give significantly lower emissions. find hardly change 1988...
Abstract. Ozone profile trends over the period 2000 to 2016 from several merged satellite ozone data sets and ground-based measured by four techniques at stations of Network for Detection Atmospheric Composition Change indicate significant increases in upper stratosphere, between 35 48 km altitude (5 1 hPa). Near 2 hPa (42 km), has been increasing about 1.5 % per decade tropics (20° S 20° N), 2.5 60° latitude bands both hemispheres. At levels below hPa), are smaller not statistically...
Abstract Atmospheric acidity is increasingly determined by carbon dioxide and organic acids 1–3 . Among the latter, formic acid facilitates nucleation of cloud droplets 4 contributes to clouds rainwater 1,5 At present, chemistry–climate models greatly underestimate atmospheric burden acid, because key processes related its sources sinks remain poorly understood 2,6–9 Here we present chamber experiments that show formaldehyde efficiently converted gaseous via a multiphase pathway involves...
Abstract. TROPOMI (the TROPOspheric Monitoring Instrument), on board the Sentinel-5 Precursor (S5P) satellite, has been monitoring Earth's atmosphere since October 2017 with an unprecedented horizontal resolution (initially 7 km2×3.5 km2, upgraded to 5.5 km2 in August 2019). air quality is one of main objectives TROPOMI; it obtains measurements important pollutants such as nitrogen dioxide, carbon monoxide, and formaldehyde (HCHO). In this paper we assess latest HCHO products versions...
Abstract. The Sentinel-5 Precursor (S5P) mission with the TROPOspheric Monitoring Instrument (TROPOMI) on board has been measuring solar radiation backscattered by Earth's atmosphere and surface since its launch 13 October 2017. In this paper, we present for first time S5P operational methane (CH4) carbon monoxide (CO) products' validation results covering a period of about 3 years using global Total Carbon Column Observing Network (TCCON) Infrared Working Group Detection Atmospheric...
Abstract Throughout spring and summer 2020, ozone stations in the northern extratropics recorded unusually low free troposphere. From April to August, from 1 8 kilometers altitude, was on average 7% (≈4 nmol/mol) below 2000–2020 climatological mean. Such ozone, over several months, at so many stations, has not been observed any previous year since least 2000. Atmospheric composition analyses Copernicus Atmosphere Monitoring Service simulations NASA GMI model indicate that large 2020...
Time series of CO and C 2 H 6 measurements have been derived from high‐resolution infrared solar spectra recorded in Lauder, New Zealand (45.0°S, 169.7°E, altitude 0.37 km), at the U.S. National Solar Observatory (31.9°N, 111.6°W, 2.09 km) on Kitt Peak. Lauder observations were obtained between July 1993 November 1997, while Peak May 1977 December 1997. Both databases analyzed with spectroscopic parameters that included significant improvements for relative to previous studies. Target lines...
Abstract. Trends in the vertical distribution of ozone are reported and compared for a number new recently revised data sets. The amount ozone-depleting compounds stratosphere (as measured by equivalent effective stratospheric chlorine – EESC) was maximised second half 1990s. We examine periods before after peak to see if any change trend is discernible record that might be attributable EESC trend, though no attribution attempted. Prior 1998, trends upper (~ 45 km, 4 hPa) found −5 −10 % per...
Abstract. This paper presents extensive {bias determination} analyses of ozone observations from the Atmospheric Chemistry Experiment (ACE) satellite instruments: ACE Fourier Transform Spectrometer (ACE-FTS) and Measurement Aerosol Extinction in Stratosphere Troposphere Retrieved by Occultation (ACE-MAESTRO) instrument. Here we compare latest data products ACE-FTS ACE-MAESTRO with coincident nearly 20 satellite-borne, airborne, balloon-borne ground-based instruments, analysing volume mixing...
Abstract. The Michelson Interferometer for Passive Atmospheric Sounding (MIPAS), on-board the European ENVIronmental SATellite (ENVISAT) launched on 1 March 2002, is a middle infrared Fourier Transform spectrometer measuring atmospheric emission spectrum in limb sounding geometry. instrument capable to retrieve vertical distribution of temperature and trace gases, aiming at study climate chemistry dynamics, applications data assimilation weather forecasting. MIPAS operated its standard...
New results of CO global total column measurements using the Atmospheric Infrared Sounder (AIRS) aboard Aqua satellite in comparison with Measurements Pollution Troposphere (MOPITT) sensor Terra are presented. Both data sets validated ground‐based Russia and Australia. A quality parameter based on Profile Percent Priori values from standard MOPITT product is introduced. AIRS (version 4) for biomass burning events agreement or lower than both ground measurements, but bursts can be seen by...
Abstract. The Total Carbon Column Observing Network (TCCON) is the baseline ground-based network of instruments that record solar absorption spectra from which accurate and precise column-averaged dry-air mole fractions CO2 (XCO2), CH4 (XCH4), CO (XCO), other gases are retrieved. TCCON data have been widely used for carbon cycle science validation satellites measuring greenhouse gas concentrations globally. number stations in (currently about 25) limited has a very uneven geographical...
Abstract. Changes of atmospheric methane (CH4) since 2005 have been evaluated using Fourier Transform Infrared (FTIR) solar observations performed at ten ground-based sites, all members the Network for Detection Atmospheric Composition Change (NDACC). From this, we find an increase total columns that amounts to 0.31 ± 0.03 % year−1 (2-sigma level uncertainty) 2005–2014 period. Comparisons with in situ measurements both local and global scales show good agreement. We used GEOS-Chem Chemical...
Abstract. Ground-based Fourier transform infrared (FTIR) measurements of solar absorption spectra can provide ozone total columns with a precision 2% but also independent partial column amounts in about four vertical layers, one the troposphere and three stratosphere up to 45km, 5–6%. We use eight Network for Detection Atmospheric Composition Change (NDACC) stations having long-term time series FTIR study trends variability, namely, Ny-Ålesund (79° N), Thule (77° Kiruna (68° Harestua (60°...
Abstract 2019 was the hottest and driest year on record for southeast Australia leading to bushfires of unprecedented extent. Ecosystem carbon losses due drought fire are believed have been substantial, but not well quantified. Here, we utilize space‐based measurements trace gases (TROPOspheric Monitoring Instrument X CO , Orbiting Carbon Observatory 2 ) up‐scaled GPP (FluxSat GPP) quantify cycle anomalies resulting from in during 2019–2020 growing season. We find that biomass burning...
Abstract. In this study, an extension on the previously reported status of COllaborative Carbon Column Observing Network's (COCCON) calibration procedures incorporating refined methods is presented. COCCON a global network portable Bruker EM27/SUN FTIR spectrometers for deriving column-averaged atmospheric abundances greenhouse gases. The original laboratory open-path lamp measurements instrumental line shape (ILS) spectrometer from water vapour lines have been and extended to secondary...
Abstract This study presents the ozone monitoring instrument (OMI) Collection 4 formaldehyde (HCHO) retrieval developed with Smithsonian Astrophysical Observatory's (SAO) Making Earth System Data Records for Use in Research Environments (MEaSUREs) algorithm. The algorithm updates and makes improvements to NASA operational OMI HCHO (OMI 3 HCHO) algorithm, has been transitioned use Level‐1B radiances. paper describes updated compares data products. exhibits remarkably improved stability over...
Abstract. The Atmospheric Chemistry Experiment (ACE) mission was launched in August 2003 to sound the atmosphere by solar occultation. Carbon monoxide (CO), a good tracer of pollution plumes and atmospheric dynamics, is one key species provided primary instrument, ACE-Fourier Transform Spectrometer (ACE-FTS). This instrument performs measurements both CO 1-0 2-0 ro-vibrational bands, from which vertically resolved concentration profiles are retrieved, mid-troposphere thermosphere. paper...
Abstract. Total column amounts of CO, CH4, CO2 and N2O retrieved from SCIAMACHY nadir observations in its near-infrared channels have been compared to data a ground-based quasi-global network Fourier-transform infrared (FTIR) spectrometers. The considered here produced by three different retrieval algorithms, WFM-DOAS (version 0.5 for CO CH4 version 0.4 N2O), IMAP-DOAS 1.1 0.9 (for CO)) IMLM 6.3) cover the January December 2003 time period. Comparisons made individual data, as well monthly...