CO₂ _ TIK _ surface - insitu _ FMI _ data1

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Organization

NO	25
Acronym	FMI
Name	Finnish Meteorological Institute
Address 1
Address 2
Address 3	P.O. BOX 503 FI-00101 HELSINKI FINLAND
Country/Territory	Finland
Website	http://www.fmi.fi/en

Contact(s)

Last updated date	2024-06-27
Name	Viktor Ivakhov
Prefix
Email	ivakhooo@mail.ru
Organization No	46
Organization acronym	MGO
Organization name	Voeikov Main Geophysical Observatory
Organization country/territory	Russian Federation
Address 1
Address 2
Address 3
Country/territory	Russian Federation
Tel
Fax

Last updated date	2024-11-11
Name	Tuomas Laurila
Prefix
Email	tuomas.laurila@fmi.fi
Organization No	25
Organization acronym	FMI
Organization name	Finnish Meteorological Institute
Organization country/territory	Finland
Address 1
Address 2
Address 3
Country/territory	Finland
Tel
Fax

Last updated date	2024-11-11
Name	Juha Hatakka
Prefix
Email	juha.hatakka@fmi.fi
Organization No	25
Organization acronym	FMI
Organization name	Finnish Meteorological Institute
Organization country/territory	Finland
Address 1	Finnish Meteorological Institute
Address 2	Erik Palmenin aukio 1
Address 3	FI-00560 Helsinki, Finland
Country/territory	Finland
Tel	+358-29-539 5491
Fax	+358-29-539 3503

Collaborator(s)

NO	46
Acronym	MGO
Name	Voeikov Main Geophysical Observatory

Aim of Observation

Background observation

Data Time zone

UTC+09:00

Unit

ppm

Calibration Scale

9999-12-31 00:00:00 - 9999-12-31 23:59:59: WMO CO2 X2019

Instrument(s)

9999-12-31 00:00:00 - 9999-12-31 23:59:59: G2301(CRDS)

Intake Height above ground level

9999-12-31 00:00:00 - 9999-12-31 23:59:59: 10 (m)

Sampling Frequency

1 minute

Measurement Calibration

Three calibration gas cylinders prepared at the WMO/GAW Central Calibration Laboratory in NOAA/ESRL, Boulder, CO, were measured automatically every 50 hours. More frequently was measured a target gas cylinder, which was prepared and calibrated against a set of CCL cylinders in FMI. In 2017, a new set was deployed. 2017-05-31 00:00:00 - 9999-12-31 23:59:59 we used three calibration gases and a target gas, which were prepared at FMI and calibrated against a set of CCL cylinders in FMI.

Data Processing

The raw data is calculated to one minute averages, and these averages are calculated to mixing ratios using linear equation based on automatic calibrations. Data is checked manually for values which don’t represent conditions when the measurement system is technically functioning well and flagged accordingly. Quality assurance procedures involve time series plots, target tank (cylinder containing natural air that are treated as unknown sample in a sequence of analyses) measurements, and comparison between the NOAA and MGO weekly flask samples and in-situ data. Flask sampling was terminated in November 2018.

Processing for averaging

[Hourly] Valid 1min averages are calculated to hourly values. Thus, ND (the number of detections) refers to the number of available 1min averages within the respective hour
[Daily] Hourly averages are aggregated to daily means. Thus, ND (the number of detections) refers to the number of available hourly averages within the respective day.
[Monthly] Daily data are aggregated to monthly means. Thus, ND (the number of detections) refers to the number of available daily averages within the respective month.

Original Data Quality Flag

1 - Valid
2 – Valid, wind speed lower than 3 m/s
3 - Missing value (or rejected due to system problems)

Data Quality Flag (Valid/Invalid)

Valid (background): 1
Valid: 2
Invalid: 3

Observation Status

Temporarily suspended

Description

Sample air is drawn by Metal-Bellows MB-158E pump via 13 meter ¼” Teflon tube. Outdoor 9m section is heated. 2013-07-07 00:00:00 - 9999-12-31 23:59:59, we used CRDS measuring wet, without drying. Water vapor coefficients were measured in FMI before shipping.

Meteorological Data Availability
(1: Available)

Wind direction: 1
Wind speed: 1
Relative humidity: 1
Precipitation amount: 0
Air pressure: 1
Air temperature: 1
Dew point temperature: 0
Sea water temperature: 0
Sea surface water temperature: 0
Sea water salinity: 0
Sea surface water salinity: 0

Meteorological Data Description

Meteorological data may remain as first provided, even when greenhouse gas data are updated.
Meteo data are 1 hour averages. Time stamp is the beginning of the 1 hour period. Anemometer height 10m. Data is from the same point as gas measurements except when this data is missing, we used data by Tiksi synop station at 1.5km distance.

DOI Metadata

DOI

co2_tik_surface-insitu_25_9999-9999_hourly.nc	10.50849/WDCGG_0025-2002-1001-01-01-9999
co2_tik_surface-insitu_25_9999-9999_hourly.txt	10.50849/WDCGG_0025-2002-1001-01-01-9999
co2_tik_surface-insitu_25_9999-9999_daily.nc	10.50849/WDCGG_0025-2002-1001-01-01-9999
co2_tik_surface-insitu_25_9999-9999_daily.txt	10.50849/WDCGG_0025-2002-1001-01-01-9999
co2_tik_surface-insitu_25_9999-9999_monthly.nc	10.50849/WDCGG_0025-2002-1001-01-01-9999
co2_tik_surface-insitu_25_9999-9999_monthly.txt	10.50849/WDCGG_0025-2002-1001-01-01-9999
co2_tik_surface-insitu_25_9999-9999_hourly_met.nc	10.50849/WDCGG_0025-2002-1001-01-01-9999
co2_tik_surface-insitu_25_9999-9999_hourly_met.txt	10.50849/WDCGG_0025-2002-1001-01-01-9999

Version

2024-10-02-0804 (Data Version History)
* DOIs and file names may have multiple versions. Be sure to check the data version.

Title

Atmospheric CO₂ at Tiksi by Finnish Meteorological Institute, dataset published as CO₂_TIK_surface-insitu_FMI_data1 at WDCGG

Creator

Finnish Meteorological Institute
Viktor Ivakhov (MGO)
Tuomas Laurila (MGO)
Juha Hatakka (MGO)

Publisher

World Data Centre for Greenhouse Gases

Publication Date

2020-08-24 (Last Updated: 2024-10-03)

Format

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

Relation List (Is Part Of)

All CO₂ data contributed to WDCGG by GAW stations and mobiles by 2024-09-24
All CO₂ data contributed to WDCGG by GAW stations and mobiles by 2023-09-13
All CO₂ data contributed to WDCGG by GAW stations and mobiles by 2022-09-07
All CO₂ data contributed to WDCGG by GAW stations and mobiles by 2021-09-08
All CO₂ data contributed to WDCGG by GAW stations and mobiles by 2020-09-28

Geolocation Point

Latitude (north: +; south: -)	71.5861663818
Longitude (east: +; west: -)	128.9188232422

GAW Data Policy

"For Scientific purposes, access to these data is unlimited and provided without charge. By their use you accept that an offer of co-authorship will be made through personal contact with the data providers or owners whenever substantial use is made of their data. In all cases, an acknowledgement must be made to the data providers or owners and to the data centre when these data are used within a publication."

Citation format

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

Viktor Ivakhov (MGO), Tuomas Laurila (FMI), Juha Hatakka (FMI), Atmospheric CO₂ at Tiksi by Finnish Meteorological Institute , dataset published as CO₂_TIK_ surface-insitu_FMI_data1 at WDCGG, ver. 2024-10-02-0804, https://doi.org/10.50849/WDCGG_0025-2002-1001-01-01-9999 (Reference date^*: YYYY/MM/DD)

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

Reference(s)

1	ISSN 1068-3739, Russian Meteorology and Hydrology, 2019, Vol. 44, No. 4, pp. 291–299. Ó Allerton Press, Inc., 2019. Russian Text Ó V.M. Ivakhov, N.N. Paramonova, V.I. Privalov, A.V. Zinchenko, M.A. Loskutova, A.P. Makshtas, V.Y. Kustov, T. Laurila, M. Aurela, E. Asmi, 2019, published in Meteorologiya i Gidrologiya, 2019, No. 4, pp. 110–121.

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