Gas Chromatography (FID)

The measurement programme of the CH4 has been run by CESI RICERCA since February 1991 (at beginning by means of biweekly samplings until December 2002 and then by means of continuous measurements since January 2002). The measurements have been stopped from May 2006 to October 2007. Since 2008 the minimum temporal resolution for the mean values is based on hourly averages.

Instrument: GC-FID, NIRA Venus 301

Duration of the analyses' cycle: 120 s.

Detection limit: 20 ppb.

The calibration measurements are realized by means of two working gas standard referred to primary standard.

The working standard are systematically measured every six hours.

CMDL X83 up to 2007. Since 2008 NOAA04 Scale. Convertion factor is: 1.0124. So, CMDL X83 * 1.0124 = NOAA04.

In 2009, all CMDL X83 scale data have been expressed in NOAA04 scale.

FLAG: "1" means "valid data". The data is considered correct but no criteria, at the moment, has been applied to identify the background data; "2" means "invalid data" (for example, instrumental problems due to the missed electrical power, incorrect calibration measurements, sampling flow incorrect and so on)

 
Citation proposal
(2011) . Gas Chromatography (FID). https://geoportal.mountaingenius.org/geonetwork/srv/api/records/3d112f60-bd18-4e09-b41f-e41beb7c5206
 

Identification

Data identification

Citation

Date ( Publication )
2011-04-12T19:08:00
Edition
Purpose
To provide data for research and study of the long term trends.
Status
On going

  Point of contact

Website
http://www.rse-web.it  
Maintenance and update frequency
Annually
Keywords ( Theme )
  • METHANE , ALPS , NEXTDATA
Keywords ( Place )
  • ITALY
GEMET themes ( Theme )
  • air , climate , Climate forcers , pollution , research
Keywords ( Theme )
  • mountain area

Legal constraints

Use limitation
On any publication using data from the individual station, the author must contact the point of contact submitters concerning co-authorship or acknowledgments, and make proper descriptions on the data sources in their references
Access constraints
Intellectual property rights
Other constraints
Spatial representation type
Vector
Character set
UTF8
Topic category
  • Climatology, meteorology, atmosphere
  • Geoscientific information
  • Environment
Time period
2005-01-01T01:00:00

Extent

Description
Italy
N
S
E
W


 

Distribution

Digital transfer options

OnLine resource
World Data Center for Greenhouse Gases (WDCGG)  

World Data Center for Greenhouse Gases (WDCGG)

OnLine resource
RSE Spa web site  

RSE Spa web site

OnLine resource

Protocol
GLG:KML-2.0-http-get-map
Name
Description
View in Google Earth

OnLine resource

Protocol
Description

OnLine resource

Protocol
Description
 

Spatial rep.

Vector spatial representation

Topology level
Geometry only

Geometric objects

Geometric object type
Point
Geometric object count
1
 

Metadata

Metadata

File identifier
3d112f60-bd18-4e09-b41f-e41beb7c5206   XML
Metadata language
eng
Character set
UTF8
Parent identifier
a3974938-c9a4-4cce-b06a-a85723adc5b8
Hierarchy level
Series
Hierarchy level name
Date stamp
2015-06-10T16:15:16
Metadata standard name
ISO 19115:2003/19139
Metadata standard version
1.0

  Principal investigator

Website
http://www.rse-web.it  
Dataset URI
 
 

Md. constraints

Use limitation
No conditions apply
 

Md. maintenance

Maintenance information

Maintenance and update frequency
As needed
Update scope
Series
Maintenance note

  Point of contact

Website
http://www.evk2cnr.org  
 

Schema info

Application Schema Information

Citation

Date
Schema language
Constraint language
 

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