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Peer-reviewedCC BY 4.0Atmospheric Environment

Seven-year continuous measurement of CO2 and CH4 at Atlas Mohammed V atmospheric research station in Northwest Africa

  • Ibrahim Ouchen
  • Michel Ramonet
  • Toure Dro Tiemoko
  • Morgan Lopez
  • Mohamed Mastere
  • Abdelaziz Motiaa
  • Wahid Mellouki
Open at sourcePDFDOICite

Abstract

First long-term continuous CO 2 and CH 4 record in North Africa.

• Annual growth rates are consistent with regional and global Northern Hemisphere trends. • HYSPLIT clustering reveals strong seasonal variability in air mass origins influencing AMV. • Seasonal ΔCH 4 /ΔCO 2 ratios identify distinct emission sources across the four seasons. • Cross-wavelet analysis shows strong CO 2 -CH 4 coherence at seasonal scales and more variable, event-driven coupling at synoptic scales.

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Cite

BibTeXRIS
BibTeX
@article{ouchen2026sevenyear,
  title = {{Seven-year continuous measurement of CO2 and CH4 at Atlas Mohammed V atmospheric research station in Northwest Africa}},
  author = {Ibrahim Ouchen and Michel Ramonet and Toure Dro Tiemoko and Morgan Lopez and Mohamed Mastere and Abdelaziz Motiaa and Wahid Mellouki},
  journal = {Atmospheric Environment},
  year = {2026},
  month = oct,
  doi = {10.1016/j.atmosenv.2026.122365},
  url = {https://hal.science/hal-05775801v1},
  note = {CC BY 4.0},
}
RIS
TY  - JOUR
TI  - Seven-year continuous measurement of CO2 and CH4 at Atlas Mohammed V atmospheric research station in Northwest Africa
AU  - Ibrahim Ouchen
AU  - Michel Ramonet
AU  - Toure Dro Tiemoko
AU  - Morgan Lopez
AU  - Mohamed Mastere
AU  - Abdelaziz Motiaa
AU  - Wahid Mellouki
PY  - 2026
DA  - 2026/10/02
JO  - Atmospheric Environment
DO  - 10.1016/j.atmosenv.2026.122365
UR  - https://hal.science/hal-05775801v1
AB  - First long-term continuous CO 2 and CH 4 record in North Africa.  • Annual growth rates are consistent with regional and global Northern Hemisphere trends. • HYSPLIT clustering reveals strong seasonal variability in air mass origins influencing AMV. • Seasonal ΔCH 4 /ΔCO 2 ratios identify distinct emission sources across the four seasons. • Cross-wavelet analysis shows strong CO 2 -CH 4 coherence at seasonal scales and more variable, event-driven coupling at synoptic scales.
SN  - 1352-2310
SN  - 1873-2844
ER  -