Recent Decreases in the Growth Rate of Atmospheric HCFC-22 Column Derived From the Ground-Based FTIR Harmonized Retrievals at 16 NDACC Sites

Minqiang Zhou; Bavo Langerock; Corinne Vigouroux; Dan Smale; Geoff Toon; Alexander Polyakov; James W. Hannigan; Johan Mellqvist; John Robinson; Justus Notholt; Kimberly Strong; Emmanuel Mahieu; Mathias Palm; Maxime Prignon; Nicolas Jones; Omaira García; Isamu Morino; Isao Murata; Ivan Ortega; Tomoo Nagahama; Tyler Wizenberg; Victoria Flood; Kaley Walker; Martine De Mazière

doi:10.1029/2024GL112470

Recent Decreases in the Growth Rate of Atmospheric HCFC-22 Column Derived From the Ground-Based FTIR Harmonized Retrievals at 16 NDACC Sites

Minqiang Zhou
, Bavo Langerock
, Corinne Vigouroux
, Dan Smale
, Geoff Toon
, Alexander Polyakov
, James W. Hannigan
, Johan Mellqvist
, John Robinson
, Justus Notholt
, Kimberly Strong
, Emmanuel Mahieu
, Mathias Palm
, Maxime Prignon
, Nicolas Jones
, Omaira García
, Isamu Morino
, Isao Murata
, Ivan Ortega
, Tomoo Nagahama

Tyler Wizenberg, Victoria Flood, Kaley Walker, Martine De Mazière

Research output: Contribution to journal › Article › peer-review

2 Scopus citations

Abstract

HCFC-22 is an ozone-depleting substance with a greenhouse effect. The atmospheric mole fractions of HCFC-22 have been increasing since the 1950s. Within the NDACC-IRWG network, HCFC-22 mol fractions can be retrieved from solar absorption spectra measured by ground-based FTIR. However, only a few sites have provided HCFC-22 data sets. Here, we demonstrate a harmonized FTIR HCFC-22 retrieval strategy and generate a new global NDACC-IRWG HCFC-22 data set at 16 FTIR sites. The systematic and random uncertainties are 5.3%–8.7% and 3.2%–8.0%, respectively. A maximum HCFC-22 column annual growth rate was observed in 2009 with a mean of 7.65 ± 1.39 ppt/year, and the HCFC-22 annual growth rate decreased to 3.57 ± 1.39 ppt/year (2016–2020) and 2.15 ± 2.09 ppt/year (2021–2023). The annual growth rates derived from the FTIR measurements are compared to the ones derived from NOAA surface flask samplings and ACE-FTS satellite measurements, and the three independent data sets show a good agreement.

Original language	English
Article number	e2024GL112470
Journal	Geophysical Research Letters
Volume	51
Issue number	22
DOIs	https://doi.org/10.1029/2024GL112470
State	Published - Nov 28 2024
Externally published	Yes

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Zhou, M., Langerock, B., Vigouroux, C., Smale, D., Toon, G., Polyakov, A., Hannigan, J. W., Mellqvist, J., Robinson, J., Notholt, J., Strong, K., Mahieu, E., Palm, M., Prignon, M., Jones, N., García, O., Morino, I., Murata, I., Ortega, I., ... De Mazière, M. (2024). Recent Decreases in the Growth Rate of Atmospheric HCFC-22 Column Derived From the Ground-Based FTIR Harmonized Retrievals at 16 NDACC Sites. Geophysical Research Letters, 51(22), Article e2024GL112470. https://doi.org/10.1029/2024GL112470

@article{5eafa01236e3476bbcdec0d02339864d,

title = "Recent Decreases in the Growth Rate of Atmospheric HCFC-22 Column Derived From the Ground-Based FTIR Harmonized Retrievals at 16 NDACC Sites",

abstract = "HCFC-22 is an ozone-depleting substance with a greenhouse effect. The atmospheric mole fractions of HCFC-22 have been increasing since the 1950s. Within the NDACC-IRWG network, HCFC-22 mol fractions can be retrieved from solar absorption spectra measured by ground-based FTIR. However, only a few sites have provided HCFC-22 data sets. Here, we demonstrate a harmonized FTIR HCFC-22 retrieval strategy and generate a new global NDACC-IRWG HCFC-22 data set at 16 FTIR sites. The systematic and random uncertainties are 5.3\%–8.7\% and 3.2\%–8.0\%, respectively. A maximum HCFC-22 column annual growth rate was observed in 2009 with a mean of 7.65 ± 1.39 ppt/year, and the HCFC-22 annual growth rate decreased to 3.57 ± 1.39 ppt/year (2016–2020) and 2.15 ± 2.09 ppt/year (2021–2023). The annual growth rates derived from the FTIR measurements are compared to the ones derived from NOAA surface flask samplings and ACE-FTS satellite measurements, and the three independent data sets show a good agreement.",

author = "Minqiang Zhou and Bavo Langerock and Corinne Vigouroux and Dan Smale and Geoff Toon and Alexander Polyakov and Hannigan, \{James W.\} and Johan Mellqvist and John Robinson and Justus Notholt and Kimberly Strong and Emmanuel Mahieu and Mathias Palm and Maxime Prignon and Nicolas Jones and Omaira Garc{\'i}a and Isamu Morino and Isao Murata and Ivan Ortega and Tomoo Nagahama and Tyler Wizenberg and Victoria Flood and Kaley Walker and \{De Mazi{\`e}re\}, Martine",

note = "Publisher Copyright: {\textcopyright} 2024. The Author(s).",

year = "2024",

month = nov,

day = "28",

doi = "10.1029/2024GL112470",

language = "English",

volume = "51",

journal = "Geophysical Research Letters",

issn = "0094-8276",

publisher = "John Wiley and Sons Inc.",

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Zhou, M, Langerock, B, Vigouroux, C, Smale, D, Toon, G, Polyakov, A, Hannigan, JW, Mellqvist, J, Robinson, J, Notholt, J, Strong, K, Mahieu, E, Palm, M, Prignon, M, Jones, N, García, O, Morino, I, Murata, I, Ortega, I, Nagahama, T, Wizenberg, T, Flood, V, Walker, K & De Mazière, M 2024, 'Recent Decreases in the Growth Rate of Atmospheric HCFC-22 Column Derived From the Ground-Based FTIR Harmonized Retrievals at 16 NDACC Sites', Geophysical Research Letters, vol. 51, no. 22, e2024GL112470. https://doi.org/10.1029/2024GL112470

TY - JOUR

T1 - Recent Decreases in the Growth Rate of Atmospheric HCFC-22 Column Derived From the Ground-Based FTIR Harmonized Retrievals at 16 NDACC Sites

AU - Zhou, Minqiang

AU - Langerock, Bavo

AU - Vigouroux, Corinne

AU - Smale, Dan

AU - Toon, Geoff

AU - Polyakov, Alexander

AU - Hannigan, James W.

AU - Mellqvist, Johan

AU - Robinson, John

AU - Notholt, Justus

AU - Strong, Kimberly

AU - Mahieu, Emmanuel

AU - Palm, Mathias

AU - Prignon, Maxime

AU - Jones, Nicolas

AU - García, Omaira

AU - Morino, Isamu

AU - Murata, Isao

AU - Ortega, Ivan

AU - Nagahama, Tomoo

AU - Wizenberg, Tyler

AU - Flood, Victoria

AU - Walker, Kaley

AU - De Mazière, Martine

PY - 2024/11/28

Y1 - 2024/11/28

N2 - HCFC-22 is an ozone-depleting substance with a greenhouse effect. The atmospheric mole fractions of HCFC-22 have been increasing since the 1950s. Within the NDACC-IRWG network, HCFC-22 mol fractions can be retrieved from solar absorption spectra measured by ground-based FTIR. However, only a few sites have provided HCFC-22 data sets. Here, we demonstrate a harmonized FTIR HCFC-22 retrieval strategy and generate a new global NDACC-IRWG HCFC-22 data set at 16 FTIR sites. The systematic and random uncertainties are 5.3%–8.7% and 3.2%–8.0%, respectively. A maximum HCFC-22 column annual growth rate was observed in 2009 with a mean of 7.65 ± 1.39 ppt/year, and the HCFC-22 annual growth rate decreased to 3.57 ± 1.39 ppt/year (2016–2020) and 2.15 ± 2.09 ppt/year (2021–2023). The annual growth rates derived from the FTIR measurements are compared to the ones derived from NOAA surface flask samplings and ACE-FTS satellite measurements, and the three independent data sets show a good agreement.

AB - HCFC-22 is an ozone-depleting substance with a greenhouse effect. The atmospheric mole fractions of HCFC-22 have been increasing since the 1950s. Within the NDACC-IRWG network, HCFC-22 mol fractions can be retrieved from solar absorption spectra measured by ground-based FTIR. However, only a few sites have provided HCFC-22 data sets. Here, we demonstrate a harmonized FTIR HCFC-22 retrieval strategy and generate a new global NDACC-IRWG HCFC-22 data set at 16 FTIR sites. The systematic and random uncertainties are 5.3%–8.7% and 3.2%–8.0%, respectively. A maximum HCFC-22 column annual growth rate was observed in 2009 with a mean of 7.65 ± 1.39 ppt/year, and the HCFC-22 annual growth rate decreased to 3.57 ± 1.39 ppt/year (2016–2020) and 2.15 ± 2.09 ppt/year (2021–2023). The annual growth rates derived from the FTIR measurements are compared to the ones derived from NOAA surface flask samplings and ACE-FTS satellite measurements, and the three independent data sets show a good agreement.

UR - https://www.scopus.com/pages/publications/85209119305

U2 - 10.1029/2024GL112470

DO - 10.1029/2024GL112470

M3 - Article

AN - SCOPUS:85209119305

SN - 0094-8276

VL - 51

JO - Geophysical Research Letters

JF - Geophysical Research Letters

IS - 22

M1 - e2024GL112470

ER -

Recent Decreases in the Growth Rate of Atmospheric HCFC-22 Column Derived From the Ground-Based FTIR Harmonized Retrievals at 16 NDACC Sites

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