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Atmospheric Hydrocarbons at GEOSummit, Greenland, as Tracers for Climate Change, Air Pollution Transport, and Oxidation Chemistry in the Arctic

General

Project start
01.01.2018
Project end
31.12.2019
Type of project
ARMAP/NSF
Project theme
Weather, climate & atmosphere
Project topic
Meteorlogy

Fieldwork / Study

Fieldwork country
Greenland (DK)
Fieldwork location

Geolocation is 67.0179977417, -50.69400024414

Fieldwork start
22.08.2018
Fieldwork end
30.08.2018

SAR information

Fieldwork / Study

Fieldwork country
Greenland (DK)
Fieldwork location

Geolocation is 72.57, -38.48

Fieldwork start
24.08.2018
Fieldwork end
28.08.2018

SAR information

Project details

02.07.2019
Science / project plan

..

Science / project summary
This grant will allow the PI continuous measurements of atmospheric methane, and non-methane hydrocarbons (NMHC: ethane, ethyne, propane, iso-butane, n-butane, iso-pentane, n-pentane, benzene, toluene) at the Greenland Environmental Observatory at Summit (GEOSummit) over the summer of 2018. The project utilizes an existing monitoring system that has previously been operated at Summit. This gas chromatography instrument is specifically tailored towards operation at this remote arctic site as it is fully automated and controlled remotely. A second analytical channel will be added to include monitoring of the important climate gas methane. These measurements will complement the NMHC monitoring within the NOAA-INSTAAR global flask sampling program, which has provided bi-weekly NMHC data for five arctic sites. The much higher resolution in-situ data from this study will add value to the interpretation of the NMHC flask records. By applying chemical transport modeling, the in-situ data will allow researchers to decipher air pollution transport into the Arctic and contributions from different emission source regions at lower latitudes. The methane and NMHC monitoring will make a pivotal addition to the World Meteorological Organization (WMO) Global Atmospheric Watch (GAW) Volatile Organic Compound (VOC) program, as it will provide the only high time resolution in-situ NMHC site in the Arctic.
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