CO _ CMN _ surface - insitu _ ISAC _ data1

Have you completed registration?

Registration and login are needed to download data files.

In line with the GAW Data Policy, users should contact the contributors of all data of interest and propose co-authorship or acknowledgement.

Organization

NO	37
Acronym	ISAC
Name	National Research Council, Institute of Atmospheric Sciences and Climate
Address 1
Address 2
Address 3	Via Piero Gobetti, 101 40129 BOLOGNA (IT)
Country/Territory	Italy
Website	http://www.isac.cnr.it

Contact(s)

Last updated date	2024-07-25
Name	Jgor Arduini
Prefix	Dr.
Email	jgor.arduini@uniurb.it
Organization No	74
Organization acronym	UNIURB
Organization name	University of Urbino, Dep. of Pure and Applied Sciences (DISPEA)
Organization country/territory	Italy
Address 1
Address 2	DISPEA
Address 3	piazza Rinascimento 6, 61029 Urbino - Italy
Country/territory	Italy
Tel	00390722303316
Fax	00390722303311

Last updated date	2024-07-25
Name	Michela Maione
Prefix	Prof.
Email	michela.maione@uniurb.it
Organization No	74
Organization acronym	UNIURB
Organization name	University of Urbino, Dep. of Pure and Applied Sciences (DISPEA)
Organization country/territory	Italy
Address 1
Address 2	Istituto di Scienze Chimiche
Address 3	piazza Rinascimento 6, 61029 Urbino - Italy
Country/territory	Italy
Tel	00390722303314
Fax	00390722303311

Last updated date	2024-05-06
Name	Francescopiero Calzolari
Prefix
Email	f.calzolari@isac.cnr.it
Organization No	37
Organization acronym	ISAC
Organization name	National Research Council, Institute of Atmospheric Sciences and Climate
Organization country/territory	Italy
Address 1
Address 2
Address 3
Country/territory	Italy
Tel
Fax

Last updated date	2024-05-06
Name	Paolo Cristofanelli
Prefix
Email	p.cristofanelli@isac.cnr.it
Organization No	37
Organization acronym	ISAC
Organization name	National Research Council, Institute of Atmospheric Sciences and Climate
Organization country/territory	Italy
Address 1
Address 2
Address 3	ISAC-CNR, VIa Gobetti 101 - 40129 Bologna, Italy
Country/territory	Italy
Tel	+39 051 6399652
Fax	+39 051 6399652

Collaborator(s)

NO	74
Acronym	UNIURB
Name	University of Urbino, Dep. of Pure and Applied Sciences (DISPEA)

Aim of Observation

Background observation

Data Time zone

UTC+01:00

Unit

ppb

Calibration Scale

9999-12-31 00:00:00 - 2011-12-31 23:59:59: WMO CO X2004
2012-01-01 00:00:00 - 9999-12-31 23:59:59: WMO CO X2014A

Instrument(s)

9999-12-31 00:00:00 - 2011-12-31 23:59:59: RGD2-Trace Analytical analyzer(Gas chromatography (RGD))
2012-01-01 00:00:00 - 9999-12-31 23:59:59: Thermo Scientific TEI 48C-TL(NDIR)

Intake Height above ground level

9999-12-31 00:00:00 - 9999-12-31 23:59:59: 7 (m)

Sampling Frequency

1 minute

Measurement Calibration

[from 2012 onward] :
To minimize the influence of temperature on the measurements a specific software was designed and used to control the zero calibration, forcing the instrument to execute this calibration every 15 minutes.
The zero air necessary for the zero calibration is obtained using a steel tube containing Sofnocat 423. Due to the switching in the instrument internal valves during the zero cycle, the ambient air is forced to pass through Sofnocat ©. The zero air is then injected in the cell for 15 minutes and only the final 5 minutes are averaged to produce the zero value that is the applied to the instrument using our self-built software.
The span calibration is performed once a day, starting at 00:30 AM and ending at 00:45 AM. The span value is 500 nmol/mol and this concentration is obtained from the dilution of a 10 ppm CO standard cylinder (CO synthetic air, Messer Switzerland, 2% (k=2) uncertainty) with zero air produced by the zero air unit, which is constituted by carbonate cylinder filled with silica gel (to dry the ambient air) and a steel tube containing Sofnocat© 423. The standard and zero air flows are regulated using two Mass Flow Controller (MFC) (Producer: Brook Instrument Ltd) with different operative range: the one regulating zero air flow works between 0 and 5000 l/min, while the one regulating the standard flow works between 0 and 500 l/min.
Two valves electronically controlled are installed before the two MFCs, so that the system could be completely controlled in the case of failures; moreover, in this way, the two MFCs (as are the valves) are normally closed and are opened only when there is the need for the span calibration. This increase the stability of the MFCs calibration as well as the MCF life time.
10 ppm CO standards produced by esser Switzerland with 2% (k=2) uncertainty.

[from 2007 to 2010] :
every 15 minutes a sample is analyzed alternating between real air and reference standard in order to correct for short time instrumental drifts. molar fraction is calculated from the ratio of the peak heights and than corrected for non linearity of the detector
reference standard are real air pumped in Luxfer Scott Marrin cylinders and calibrated at MPI-Jena against NOAA cylinders.

Data Processing

[from 2012 onward] : Row (1-min) data from the monitoring device are acquired every minute and processed to 1-hour mean values. Data is evaluated by the station staff using Excel (visual inspection, consistency checks using additional parameter such as zero/span checks, meteorological data, and statistical checks)

Processing for averaging

[Hourly] [from 2012 onward] : Hourly data are obtained averaging 1 minutes mean O3 values
[Daily] [from 2012 onward] : Daily data are obtained by averaging hourly data
[from 2007 to 2010] : The average data were calculated by WDCGG.
[Monthly] [from 2012 onward] : Monthly data are obtained by averaging daily data
[from 2007 to 2010] : The average data were calculated by WDCGG.

Original Data Quality Flag

Data Quality Flag (Valid/Invalid)

Observation Status

Operational/Reporting

Description

[from 2012 onward] :
Contact person : Paolo Cristofanelli
Scientific Aim : Investigation of background troposphere conditions. Investigation of regional and long-range pollution. Investigation of stratospheric intrusion events. Model validations. Near-real time data delivery.
Thermo Scientific TEI 48C-TL #0517111935
Instruments performance are available on http://gaw.empa.ch/audits/CMN_2012.pdf

[from 2007 to 2010] :
Contact person : Jgor Arduini
Principal Investigator : Michela Maione
Sampling Environment : Environment: Mountain peak with completly free horizon. No local sources of contamination. No access by road. Timberline about 300m below the measurement site.
The air is sampled by a 2m long heated intake at 7m height above the ground. The air intake is composed by an external (outside building) steel pipe (internally covered by Teflon) and the internal (inside building) Pyrex pipe. A Stainless steel sampling line (lenght 10m) connects the air intake with analyzer high flux sampling pump.
Each data submitted represent a real acquired concentration point, none of the post-acquisition averageing operation has been done. The precision of the measurements is then reported in the data file (REM column) as the relative standard deviation (expressed in percentage) of the repeated measure of the working standard performed in the same day of each real sample analysis (and is generally calculated over 48 working standard runs per day).
Description of Instruments : time resolution: 1 measurement every 30 minutes;
sensitivity: +- 1 ppb
detection limit: 10 ppb
measurements range: 1 - 10^3 (10 ppb - 10 ppm)
measurements started on Jan 2007 with a modified version of a commercial RGD2-Trace Analytical analyzer; system has stopped working on March 2010 due to an electronic failure to the detector MB.

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

co_cmn_surface-insitu_37_9999-9999_hourly.nc	10.50849/WDCGG_0037-6042-3001-01-01-9999
co_cmn_surface-insitu_37_9999-9999_hourly.txt	10.50849/WDCGG_0037-6042-3001-01-01-9999
co_cmn_surface-insitu_37_9999-9999_daily.nc	10.50849/WDCGG_0037-6042-3001-01-01-9999
co_cmn_surface-insitu_37_9999-9999_daily.txt	10.50849/WDCGG_0037-6042-3001-01-01-9999
co_cmn_surface-insitu_37_9999-9999_monthly.nc	10.50849/WDCGG_0037-6042-3001-01-01-9999
co_cmn_surface-insitu_37_9999-9999_monthly.txt	10.50849/WDCGG_0037-6042-3001-01-01-9999

Version

2023-04-21-1514 (Data Version History)
* DOIs and file names may have multiple versions. Be sure to check the data version.

Title

Atmospheric CO at Monte Cimone by National Research Council, Institute of Atmospheric Sciences and Climate, dataset published as CO_CMN_surface-insitu_ISAC_data1 at WDCGG

Creator

National Research Council, Institute of Atmospheric Sciences and Climate
Jgor Arduini (UNIURB)
Michela Maione (UNIURB)
Francescopiero Calzolari (UNIURB)
Paolo Cristofanelli (UNIURB)

Publisher

World Data Centre for Greenhouse Gases

Publication Date

2018-08-21 (Last Updated: 2023-10-03)

Format

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

Relation List (Is Part Of)

All CO data contributed to WDCGG by GAW stations and mobiles by 2024-09-24
All CO data contributed to WDCGG by GAW stations and mobiles by 2023-09-13
All CO data contributed to WDCGG by GAW stations and mobiles by 2022-09-05
All CO data contributed to WDCGG by GAW stations and mobiles by 2021-08-27
All CO data contributed to WDCGG by GAW stations and mobiles by 2020-09-28
All CO data contributed to WDCGG by GAW stations and mobiles by 2019-09-19
All CO data contributed to WDCGG by GAW stations and mobiles by 2018-10-25

Geolocation Point

Latitude (north: +; south: -)	44.193425
Longitude (east: +; west: -)	10.700963

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.

Jgor Arduini (UNIURB), Michela Maione (UNIURB), Francescopiero Calzolari (ISAC), Paolo Cristofanelli (ISAC), Atmospheric CO at Monte Cimone by National Research Council, Institute of Atmospheric Sciences and Climate , dataset published as CO_CMN_ surface-insitu_ISAC_data1 at WDCGG, ver. 2023-04-21-1514, https://doi.org/10.50849/WDCGG_0037-6042-3001-01-01-9999 (Reference date^*: YYYY/MM/DD)

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

Reference(s)

1	Cristofanelli P, Landi TC, Calzolari F, Duchi R, Marinoni A, Rinaldi M, Bonasoni P., Summer atmospheric composition over the Mediterranean basin: Investigation on transport processes and pollutant export to the free troposphere by observations at the WMO/GAW Mt. Cimone global station (Italy, 2165 m a.s.l.). Atmospheric Environment, 141, 2016.
2	Zellweger, Christoph, et al. 2012. System and Performance Audit of Surface Ozone, Methane, Carbon Dioxide, Nitrous Oxide and Carbon Monoxide at the Global GAW Station Mt. Cimone, Italy, September 2012.

About WDCGG

Login

Registration

Policy