Data Affiliation: AGH-University of Krakow

Acknowledgements: This work has been partially supported by the European Union’s Horizon 2020 research and
innovation program CoCO2 under grant agreement No. 958927, "Excellence Initiative – Research University" program at AGH University of Krakow, and the subsidy of the Ministry of Education and Science.

File names: PL-Krk_Isotopes_Campaign#_ALL_ver1.csv - where # is campaign number

Title of the dataset: Isotopic CO2 composition from event campaigns in Krakow urban area.

Data type: Atmospheric measurement result archive

Stations: Station: Krakow urban atmospheric site PL-Krk
Latitude: 50.067 N
Longitude: 19.913 E

Start date: 2021-02-09
End date: 2022-02-01

Comment: Atmospheric CO2 isotopic composition (d13C, d18O, D14C) in spot samples collected every 4 hours during the vertical profiles campaign in Krakow in 2021 and 2022. 
         Each spot sample has background CO2, CH4, d13C d18O and D14C values assigned based on monthly night time (22:00-6:00 UTC) observations conducted in KASLAB laboratory at Kasprowy Wierch background station located in Tatra mountains (Souther Poland)

Contributors: Mirosław Zimnoch, Alicja Skiba, Łukasz Chmura, Zbigniew Gorczyca, Michał Marzec

Measuremets:
CO2/CH4 mixing ratios: CRDS technique (Picarro G2311-f - Krakow; Picarro G2101-i - Kasprowy Wierch)
stable isotope composition: Delta-S IRMS (Finnigan-MAT)
radiocarbon: 1.5 SDH-Pelletron Model „Compact Carbon AMS” (National Electrostatics Corporation) measured in Poznan Radiocarbon Laboratory (https://radiocarbon.pl)

Variables:
Timestamp_UTC	date time UTC
delta_13_C carbon-13 isotopic composition in spot sample expressed in V-PDB scale [permill]
delta_18_O oxygen-18 isotopic composition in spot sample expressed in V-PDB scale [permill]
Delta_14_C radiocarbon capital delta value in spot sample (relative deviation from the concentration in the standard of modern biospere) [permill]
CH4 Methane mixing ratio in spot sample [ppm]
CO2	Carbon dioxide mixing ratio in spot sample [ppm]
Delta_14_C_bg radiocarbon capital delta value in nighttime monthly averaged sample collected at Kasprowy Wierch background station (relative deviation from the concentration in the standard of modern biospere) [permill]
delta_13_C_bg carbon-13 isotopic composition in nighttime monthly averaged sample collected at Kasprowy Wierch background station expressed in V-PDB scale [permill]
CH4_bg	Night-time monthly averaged methane mixing ratio measured at Kasprowy Wierch background station [ppm]
CO2_bg	Night-time monthly averaged carbon dioxide mixing ratio measured at Kasprowy Wierch background station [ppm]
