Aura Ozone Monitoring Instrument (OMI) Collection 4 Formaldehyde Products

Zolal Ayazpour; Gonzalo González Abad; Caroline R. Nowlan; Kang Sun; Hyeong Ahn Kwon; Christopher Chan Miller; Heesung Chong; Huiqun Wang; Xiong Liu; Kelly Chance; Ewan O’Sullivan; Lei Zhu; Corinne Vigouroux; Isabelle De Smedt; Wolfgang Stremme; James W. Hannigan; Justus Notholt; Xiaoyu Sun; Mathias Palm; Cristof Petri; Kimberly Strong; Amelie N. Röhling; Emmanuel Mahieu; Dan Smale; T. Yao; Isamu Morino; Isao Murata; Tomoo Nagahama; Rigel Kivi; Maria Makarova; Nicholas Jones; Ralf Sussmann; Minqiang Zhou

doi:10.1029/2024EA003792

Aura Ozone Monitoring Instrument (OMI) Collection 4 Formaldehyde Products

Zolal Ayazpour, Gonzalo González Abad, Caroline R. Nowlan, Kang Sun, Hyeong Ahn Kwon, Christopher Chan Miller, Heesung Chong, Huiqun Wang, Xiong Liu, Kelly Chance, Ewan O’Sullivan, Lei Zhu, Corinne Vigouroux, Isabelle De Smedt, Wolfgang Stremme, James W. Hannigan, Justus Notholt, Xiaoyu Sun, Mathias Palm, Cristof PetriKimberly Strong, Amelie N. Röhling, Emmanuel Mahieu, Dan Smale, T. Yao, Isamu Morino, Isao Murata, Tomoo Nagahama, Rigel Kivi, Maria Makarova, Nicholas Jones, Ralf Sussmann, Minqiang Zhou

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

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Abstract

This study presents the ozone monitoring instrument (OMI) Collection 4 formaldehyde (HCHO) retrieval developed with the Smithsonian Astrophysical Observatory's (SAO) Making Earth System Data Records for Use in Research Environments (MEaSUREs) algorithm. The retrieval algorithm updates and makes improvements to the NASA operational OMI HCHO (OMI Collection 3 HCHO) algorithm, and has been transitioned to use OMI Collection 4 Level-1B radiances. This paper describes the updated retrieval algorithm and compares Collection 3 and Collection 4 data products. The OMI Collection 4 HCHO exhibits remarkably improved stability over time in comparison to the OMI Collection 3 HCHO product, with better precision and the elimination of artificial trends present in the Collection 3 during the later years of the mission. We validate the OMI Collection 4 HCHO data product using Fourier-Transform Infrared (FTIR) ground-based HCHO measurements. The climatological monthly averaged OMI Collection 4 HCHO vertical column densities (VCDs) agree well with the FTIR VCDs, with a correlation coefficient of 0.83, root-mean-square error (RMSE) of (Formula presented.) molecules (Formula presented.), regression slope of 0.79, and intercept of (Formula presented.) molecules (Formula presented.). Additionally, we compare the monthly averaged OMI Collection 4 HCHO VCDs to OMPS Suomi NPP, OMPS NOAA-20, and TROPOMI HCHO VCDs in overlapping years for 12 geographic regions. This comparison demonstrates high correlation coefficients of 0.98 (OMPS Suomi NPP), 0.97 (OMPS NOAA-20), and 0.90 (TROPOMI).

Original language	English
Article number	e2024EA003792
Journal	Earth and Space Science
Volume	12
Issue number	2
DOIs	https://doi.org/10.1029/2024EA003792
State	Published - Feb 2025
Externally published	Yes

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10.1029/2024EA003792

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Ayazpour, Z., González Abad, G., Nowlan, C. R., Sun, K., Kwon, H. A., Chan Miller, C., Chong, H., Wang, H., Liu, X., Chance, K., O’Sullivan, E., Zhu, L., Vigouroux, C., De Smedt, I., Stremme, W., Hannigan, J. W., Notholt, J., Sun, X., Palm, M., ... Zhou, M. (2025). Aura Ozone Monitoring Instrument (OMI) Collection 4 Formaldehyde Products. Earth and Space Science, 12(2), Article e2024EA003792. https://doi.org/10.1029/2024EA003792

@article{9f1ee8142de145c48022c97580e4fcaa,

title = "Aura Ozone Monitoring Instrument (OMI) Collection 4 Formaldehyde Products",

abstract = "This study presents the ozone monitoring instrument (OMI) Collection 4 formaldehyde (HCHO) retrieval developed with the Smithsonian Astrophysical Observatory's (SAO) Making Earth System Data Records for Use in Research Environments (MEaSUREs) algorithm. The retrieval algorithm updates and makes improvements to the NASA operational OMI HCHO (OMI Collection 3 HCHO) algorithm, and has been transitioned to use OMI Collection 4 Level-1B radiances. This paper describes the updated retrieval algorithm and compares Collection 3 and Collection 4 data products. The OMI Collection 4 HCHO exhibits remarkably improved stability over time in comparison to the OMI Collection 3 HCHO product, with better precision and the elimination of artificial trends present in the Collection 3 during the later years of the mission. We validate the OMI Collection 4 HCHO data product using Fourier-Transform Infrared (FTIR) ground-based HCHO measurements. The climatological monthly averaged OMI Collection 4 HCHO vertical column densities (VCDs) agree well with the FTIR VCDs, with a correlation coefficient of 0.83, root-mean-square error (RMSE) of (Formula presented.) molecules (Formula presented.), regression slope of 0.79, and intercept of (Formula presented.) molecules (Formula presented.). Additionally, we compare the monthly averaged OMI Collection 4 HCHO VCDs to OMPS Suomi NPP, OMPS NOAA-20, and TROPOMI HCHO VCDs in overlapping years for 12 geographic regions. This comparison demonstrates high correlation coefficients of 0.98 (OMPS Suomi NPP), 0.97 (OMPS NOAA-20), and 0.90 (TROPOMI).",

author = "Zolal Ayazpour and \{Gonz{\'a}lez Abad\}, Gonzalo and Nowlan, \{Caroline R.\} and Kang Sun and Kwon, \{Hyeong Ahn\} and \{Chan Miller\}, Christopher and Heesung Chong and Huiqun Wang and Xiong Liu and Kelly Chance and Ewan O{\textquoteright}Sullivan and Lei Zhu and Corinne Vigouroux and \{De Smedt\}, Isabelle and Wolfgang Stremme and Hannigan, \{James W.\} and Justus Notholt and Xiaoyu Sun and Mathias Palm and Cristof Petri and Kimberly Strong and R{\"o}hling, \{Amelie N.\} and Emmanuel Mahieu and Dan Smale and T. Yao and Isamu Morino and Isao Murata and Tomoo Nagahama and Rigel Kivi and Maria Makarova and Nicholas Jones and Ralf Sussmann and Minqiang Zhou",

note = "Publisher Copyright: {\textcopyright} 2025. The Author(s).",

year = "2025",

month = feb,

doi = "10.1029/2024EA003792",

language = "English",

volume = "12",

journal = "Earth and Space Science",

issn = "2333-5084",

publisher = "Wiley-Blackwell Publishing Ltd",

number = "2",

}

Ayazpour, Z, González Abad, G, Nowlan, CR, Sun, K, Kwon, HA, Chan Miller, C, Chong, H, Wang, H, Liu, X, Chance, K, O’Sullivan, E, Zhu, L, Vigouroux, C, De Smedt, I, Stremme, W, Hannigan, JW, Notholt, J, Sun, X, Palm, M, Petri, C, Strong, K, Röhling, AN, Mahieu, E, Smale, D, Yao, T, Morino, I, Murata, I, Nagahama, T, Kivi, R, Makarova, M, Jones, N, Sussmann, R & Zhou, M 2025, 'Aura Ozone Monitoring Instrument (OMI) Collection 4 Formaldehyde Products', Earth and Space Science, vol. 12, no. 2, e2024EA003792. https://doi.org/10.1029/2024EA003792

TY - JOUR

T1 - Aura Ozone Monitoring Instrument (OMI) Collection 4 Formaldehyde Products

AU - Ayazpour, Zolal

AU - González Abad, Gonzalo

AU - Nowlan, Caroline R.

AU - Sun, Kang

AU - Kwon, Hyeong Ahn

AU - Chan Miller, Christopher

AU - Chong, Heesung

AU - Wang, Huiqun

AU - Liu, Xiong

AU - Chance, Kelly

AU - O’Sullivan, Ewan

AU - Zhu, Lei

AU - Vigouroux, Corinne

AU - De Smedt, Isabelle

AU - Stremme, Wolfgang

AU - Hannigan, James W.

AU - Notholt, Justus

AU - Sun, Xiaoyu

AU - Palm, Mathias

AU - Petri, Cristof

AU - Strong, Kimberly

AU - Röhling, Amelie N.

AU - Mahieu, Emmanuel

AU - Smale, Dan

AU - Yao, T.

AU - Morino, Isamu

AU - Murata, Isao

AU - Nagahama, Tomoo

AU - Kivi, Rigel

AU - Makarova, Maria

AU - Jones, Nicholas

AU - Sussmann, Ralf

AU - Zhou, Minqiang

PY - 2025/2

Y1 - 2025/2

N2 - This study presents the ozone monitoring instrument (OMI) Collection 4 formaldehyde (HCHO) retrieval developed with the Smithsonian Astrophysical Observatory's (SAO) Making Earth System Data Records for Use in Research Environments (MEaSUREs) algorithm. The retrieval algorithm updates and makes improvements to the NASA operational OMI HCHO (OMI Collection 3 HCHO) algorithm, and has been transitioned to use OMI Collection 4 Level-1B radiances. This paper describes the updated retrieval algorithm and compares Collection 3 and Collection 4 data products. The OMI Collection 4 HCHO exhibits remarkably improved stability over time in comparison to the OMI Collection 3 HCHO product, with better precision and the elimination of artificial trends present in the Collection 3 during the later years of the mission. We validate the OMI Collection 4 HCHO data product using Fourier-Transform Infrared (FTIR) ground-based HCHO measurements. The climatological monthly averaged OMI Collection 4 HCHO vertical column densities (VCDs) agree well with the FTIR VCDs, with a correlation coefficient of 0.83, root-mean-square error (RMSE) of (Formula presented.) molecules (Formula presented.), regression slope of 0.79, and intercept of (Formula presented.) molecules (Formula presented.). Additionally, we compare the monthly averaged OMI Collection 4 HCHO VCDs to OMPS Suomi NPP, OMPS NOAA-20, and TROPOMI HCHO VCDs in overlapping years for 12 geographic regions. This comparison demonstrates high correlation coefficients of 0.98 (OMPS Suomi NPP), 0.97 (OMPS NOAA-20), and 0.90 (TROPOMI).

AB - This study presents the ozone monitoring instrument (OMI) Collection 4 formaldehyde (HCHO) retrieval developed with the Smithsonian Astrophysical Observatory's (SAO) Making Earth System Data Records for Use in Research Environments (MEaSUREs) algorithm. The retrieval algorithm updates and makes improvements to the NASA operational OMI HCHO (OMI Collection 3 HCHO) algorithm, and has been transitioned to use OMI Collection 4 Level-1B radiances. This paper describes the updated retrieval algorithm and compares Collection 3 and Collection 4 data products. The OMI Collection 4 HCHO exhibits remarkably improved stability over time in comparison to the OMI Collection 3 HCHO product, with better precision and the elimination of artificial trends present in the Collection 3 during the later years of the mission. We validate the OMI Collection 4 HCHO data product using Fourier-Transform Infrared (FTIR) ground-based HCHO measurements. The climatological monthly averaged OMI Collection 4 HCHO vertical column densities (VCDs) agree well with the FTIR VCDs, with a correlation coefficient of 0.83, root-mean-square error (RMSE) of (Formula presented.) molecules (Formula presented.), regression slope of 0.79, and intercept of (Formula presented.) molecules (Formula presented.). Additionally, we compare the monthly averaged OMI Collection 4 HCHO VCDs to OMPS Suomi NPP, OMPS NOAA-20, and TROPOMI HCHO VCDs in overlapping years for 12 geographic regions. This comparison demonstrates high correlation coefficients of 0.98 (OMPS Suomi NPP), 0.97 (OMPS NOAA-20), and 0.90 (TROPOMI).

UR - https://www.scopus.com/pages/publications/85218500938

U2 - 10.1029/2024EA003792

DO - 10.1029/2024EA003792

M3 - Article

AN - SCOPUS:85218500938

SN - 2333-5084

VL - 12

JO - Earth and Space Science

JF - Earth and Space Science

IS - 2

M1 - e2024EA003792

ER -

Aura Ozone Monitoring Instrument (OMI) Collection 4 Formaldehyde Products

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