CH₄ _ SAC6423 _ tower - insitu _ ICOS _ tower60

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GAW Data Policy

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Version

2025-04-25-0000 (Last updated: 2025-06-23)

File

This data set is submitted by ICOS.

Gas Species	Station/Mobile	Organization	Type	Period	Filename	Size	Plot
CH₄	Saclay	ICOS	hourly	2015-07-08 16:00:00 - 2024-07-28 23:00:00	ch4_sac6423_tower-insitu_162_6061-9999_hourly	(Text: 12.64MB ; NetCDF: 19.40MB )	png
CH₄	Saclay	ICOS	daily	2015-07-08 00:00:00 - 2024-07-28 00:00:00	ch4_sac6423_tower-insitu_162_6061-9999_daily	(Text: 0.52MB ; NetCDF: 0.83MB )	png
CH₄	Saclay	ICOS	monthly	2015-07-01 00:00:00 - 2024-07-01 00:00:00	ch4_sac6423_tower-insitu_162_6061-9999_monthly	(Text: 0.03MB ; NetCDF: 0.05MB )	png

Text NetCDF

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Organization

NO	162
Acronym	ICOS
Name	Integrated Carbon Observation System Research Infrastructure
Address 1	Erik Palménin aukio 1
Address 2	FI-00560 Helsinki
Address 3	FINLAND
Country/Territory	Multinational
Website	https://www.icos-cp.eu

Contact(s)

Last updated date	2025-04-25
Name	Michel Ramonet
Prefix	Dr.
Email	michel.ramonet@lsce.ipsl.fr
Organization No	45
Organization acronym	LSCE
Organization name	Laboratoire des Sciences du Climat et de l'Environnement
Organization country/territory	France
Address 1
Address 2
Address 3	LSCE - CEA Saclay - Orme des Merisiers - 91191 Gif-sur-Yvette, France
Country/territory	France
Tel	+33 (0)1 69 08 40 14
Fax	+33 (0)1 69 08 77 16

Last updated date	2025-04-25
Name	Victor Kazan
Prefix
Email	victor.kazan@lsce.ipsl.fr
Organization No	174
Organization acronym	CEA
Organization name	Commissariat à l'énergie atomique et aux énergies alternatives
Organization country/territory	France
Address 1
Address 2
Address 3
Country/territory	France
Tel
Fax

Last updated date	2025-04-25
Name	Marc Delmotte
Prefix
Email	marc.delmotte@lsce.ipsl.fr
Organization No	165
Organization acronym	OPAR
Organization name	Observatoire de Physique de l'Atmosphère de la Réunion
Organization country/territory	France
Address 1
Address 2
Address 3
Country/territory	France
Tel
Fax

Last updated date	2025-04-25
Name	Morgan Lopez
Prefix
Email	morgan.lopez@lsce.ipsl.fr
Organization No	165
Organization acronym	OPAR
Organization name	Observatoire de Physique de l'Atmosphère de la Réunion
Organization country/territory	France
Address 1
Address 2
Address 3
Country/territory	France
Tel
Fax

Last updated date	2025-04-25
Name	Marta Fuente-Lastra
Prefix
Email	marta.fuente-lastra@lsce.ipsl.fr
Organization No	174
Organization acronym	CEA
Organization name	Commissariat à l'énergie atomique et aux énergies alternatives
Organization country/territory	France
Address 1
Address 2
Address 3
Country/territory	France
Tel
Fax

Last updated date	2025-04-25
Name	Virgile Legendre
Prefix
Email	virgile.legendre@lsce.ipsl.fr
Organization No	174
Organization acronym	CEA
Organization name	Commissariat à l'énergie atomique et aux énergies alternatives
Organization country/territory	France
Address 1
Address 2
Address 3
Country/territory	France
Tel
Fax

Last updated date	2025-04-25
Name	Dylan Lopez
Prefix
Email	dylan.lopez@lsce.ipsl.fr
Organization No	174
Organization acronym	CEA
Organization name	Commissariat à l'énergie atomique et aux énergies alternatives
Organization country/territory	France
Address 1
Address 2
Address 3
Country/territory	France
Tel
Fax

Last updated date	2025-04-25
Name	Zineb Mandrick
Prefix
Email	zineb.mandrick@lsce.ipsl.fr
Organization No	174
Organization acronym	CEA
Organization name	Commissariat à l'énergie atomique et aux énergies alternatives
Organization country/territory	France
Address 1
Address 2
Address 3
Country/territory	France
Tel
Fax

Last updated date	2025-04-25
Name	Louis-Jeremy Rigouleau
Prefix
Email	louis-jeremy.rigouleau@lsce.ipsl.fr
Organization No	174
Organization acronym	CEA
Organization name	Commissariat à l'énergie atomique et aux énergies alternatives
Organization country/territory	France
Address 1
Address 2
Address 3
Country/territory	France
Tel
Fax

Collaborator(s)
Aim of Observation	Background observation
Data Time zone	UTC
Unit	ppb
Calibration Scale	9999-12-31 00:00:00 - 9999-12-31 23:59:59: WMO CH4 X2004A
Instrument(s)
Intake Height above ground level	9999-12-31 00:00:00 - 9999-12-31 23:59:59: 60.0 (m)
Sampling Frequency	Unknown
Measurement Calibration	Measurement calibration at ICOS ATC is described in [Hazan et al., 2016], doi:10.5194/amt-9-4719-2016
Data Processing	Data processing at ICOS ATC is described in [Hazan et al., 2016], doi:10.5194/amt-9-4719-2016
Processing for averaging	[Hourly] Time-averaged values are reported at the start time of the averaging interval. The document 'ICOS Atmospheric Station specifications' (doi:10.18160/GK28-2188) provides more detailed explanations about the sampling frequency. [Daily] [Monthly]
Original Data Quality Flag	- Flag 'U' = data correct before manual quality control - Flag 'N' = data incorrect before manual quality control - Flag 'O' = data correct after manual quality control - Flag 'K' = data incorrect after manual quality control - Flag 'R' = data correct after manual quality control and backward propagation of manual quality control from hourly data to minutely and raw data - Flag 'H' = data incorrect after manual quality control and backward propagation of manual quality control from hourly data to minutely and raw data
Data Quality Flag (Valid/Invalid)	Valid (background): U Valid (background): O Valid (background): R Invalid: N Invalid: K Invalid: H
Observation Status	Operational/Reporting
Description	ICOS atmospheric station Observational timeseries of ambient mole fraction of CH4 in dry air, composed of (all whenever available) historical PI quality-checked data, ICOS Level 2 data and ICOS NRT data. PID: 11676/C40bN45-oUsviSfLuEbNuegi Citation: ICOS RI, Bergamaschi, P., Colomb, A., De Mazière, M., Emmenegger, L., Kubistin, D., Lehner, I., Lehtinen, K., Leuenberger, M., Lund Myhre, C., Marek, M.V., O'Doherty, S., Platt, S.M., Plaß-Dülmer, C., Apadula, F., Arnold, S., Blanc, P.-E., Brunner, D., Chen, H., Chmura, L., Chmura, Ł., Conil, S., Couret, C., Cristofanelli, P., Forster, G., Frumau, A., Gerbig, C., Gheusi, F., Hammer, S., Haszpra, L., Hatakka, J., Heliasz, M., Henne, S., Hensen, A., Hoheisel, A., Kneuer, T., Larmanou, E., Laurila, T., Leskinen, A., Levin, I., Lindauer, M., Lopez, M., Mammarella, I., Manca, G., Manning, A., Martin, D., Meinhardt, F., Mölder, M., Müller-Williams, J., Noe, S.M., Nęcki, J., Ottosson-Löfvenius, M., Philippon, C., Pitt, J., Ramonet, M., Rivas-Soriano, P., Scheeren, B., Schumacher, M., Sha, M.K., Spain, G., Steinbacher, M., Sørensen, L.L., Vermeulen, A., Vítková, G., Xueref-Remy, I., di Sarra, A., Conen, F., Kazan, V., Roulet, Y.-A., Biermann, T., Delmotte, M., Heltai, D., Hermansen, O., Komínková, K., Laurent, O., Levula, J., Lunder, C., Marklund, P., Morguí, J.-A., Pichon, J.-M., Schmidt, M., Sferlazzo, D., Smith, P., Stanley, K., Trisolino, P., Zazzeri, G., ICOS Carbon Portal, ICOS Atmosphere Thematic Centre, ICOS Flask And Calibration Laboratory, ICOS Central Radiocarbon Laboratory, 2024. European Obspack compilation of atmospheric methane data from ICOS and non-ICOS European stations for the period 1984-2024; obspack_ch4_466_GVeu_v10.0_20240729. https://doi.org/10.18160/PAWA-B2Y4 DATA POLICY: ICOS data is licensed under a Creative Commons Attribution 4.0 international licence (https://creativecommons.org/licenses/by/4.0/). ICOS data licence is described at https://data.icos-cp.eu/licence.
Meteorological Data Availability (1: Available)	Wind direction: Wind speed: Relative humidity: Precipitation amount: Air pressure: Air temperature: Dew point temperature: Sea water temperature: Sea surface water temperature: Sea water salinity: Sea surface water salinity:
Meteorological Data Description	Meteorological data may remain as first provided, even when greenhouse gas data are updated.

DOI Metadata

DOI

ch4_sac6423_tower-insitu_162_6061-9999_hourly.nc	10.18160/PAWA-B2Y4
ch4_sac6423_tower-insitu_162_6061-9999_hourly.txt	10.18160/PAWA-B2Y4
ch4_sac6423_tower-insitu_162_6061-9999_daily.nc	10.18160/PAWA-B2Y4
ch4_sac6423_tower-insitu_162_6061-9999_daily.txt	10.18160/PAWA-B2Y4
ch4_sac6423_tower-insitu_162_6061-9999_monthly.nc	10.18160/PAWA-B2Y4
ch4_sac6423_tower-insitu_162_6061-9999_monthly.txt	10.18160/PAWA-B2Y4

For more information, please refer: doi.org/10.18160/PAWA-B2Y4

Related information

Format

Text (WDCGG Data Format Table, WDCGG Meteorological Data Format Table), NetCDF

Relation List (Is Part Of)

Geolocation Point

Latitude (north: +; south: -)	48.7227
Longitude (east: +; west: -)	2.142

GAW Data Policy

Citation format

This format is an example of the WDCGG standard citation.
Please follow the citation format which the data providers or owners indicate.

Michel Ramonet (LSCE), Victor Kazan (CEA), Marc Delmotte (OPAR), Morgan Lopez (OPAR), Marta Fuente-Lastra (CEA), Virgile Legendre (CEA), Dylan Lopez (CEA), Zineb Mandrick (CEA), Louis-Jeremy Rigouleau (CEA), Atmospheric CH₄ at Saclay by Integrated Carbon Observation System Research Infrastructure , dataset published as CH₄_SAC6423_ tower-insitu_ICOS_tower60 at WDCGG, ver. 2025-04-25-0000 (Reference date^*: YYYY/MM/DD)

* As the reference date, please indicate the date you downloaded the files.

Reference(s)

1	Hazan, L., Tarniewicz, J., Ramonet, M., Laurent, O., and Abbaris, A.: Automatic processing of atmospheric CO2 and CH4 mole fractions at the ICOS Atmosphere Thematic Centre, Atmos. Meas. Tech., 9, 4719-4736, doi:10.5194/amt-9-4719-2016, 2016.

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