|Name||University of Urbino, Dep. of Pure and Applied Sciences (DISPEA)|
|Address 1||piazza Rinascimento 6|
|Address 2||61029 - Urbino|
|Organization name||University of Urbino, Dep. of Pure and Applied Sciences (DISPEA)|
|Address 3||piazza Rinascimento 6, 61029 Urbino - Italy|
|Last updated date||2021-04-21|
9999-12-31 00:00:00 - 9999-12-31 23:59:59: WMO CH4 X2004A
9999-12-31 00:00:00 - 9999-12-31 23:59:59: Agilent GC6890(Gas chromatography (FID))
9999-12-31 00:00:00 - 9999-12-31 23:59:59: 7 (m)
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;
reference standard (local working standard) is regolarly checked against NOAA cylinders
|reported data are single point, no average is computed; data validation is evaluated by checking the correct instrumental operation, the spread of the repeated working standard analysis; in case of anomalies, real data are flagged for a deep check and -eventually- removed form the final dataset. results from target cylinder is used to check for long term stability of the whole set up and eventually correct or remove suspect data.|
0= background data;
1=data possibly affected by local pollution;
2=calibration or invalid data.
Valid (background): 0
The air is sampled by a 2m long heated intake at 7 m 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 the high flux sampling pump in front of the sampling loop of the analyzer; a cracking check valve is installed downstream the pump to ensure a sligthly overpressure inside the sampling loop and discharge the excess of flow to vent.
Dew point temperature:
Sea water temperature:
Sea surface water temperature:
Sea water salinity:
Sea surface water salinity:
Meteorological data may remain as first provided, even when greenhouse gas data are updated.
|Format||Text (WDCGG Data Format Table, WDCGG Meteorological Data Format Table), NetCDF|
|Relation List (Is Part Of)||
All CH4 data contributed to WDCGG by GAW stations and mobiles by 2020-09-28
All CH4 data contributed to WDCGG by GAW stations and mobiles by 2019-09-19
All CH4 data contributed to WDCGG by GAW stations and mobiles by 2018-10-25