ACSIS TitleACSIS Atmos ObservationsOceanObsSatObsACSIS Essential Climate VariablesModel Simulations

ACSIS The North Atlantic Climate System: Integrated observationS, attribution and prediction

ACSIS will utilise and develop a range of data sets to develop our atmospheric data products and use these to build up a comprehensive view of structure and variability of atmospheric composition across the North Atlantic. Composition data sets will include (i) ozone and its precursors, which provide information of changes in tropospheric oxidizing capacity, (ii) methane, a key greenhouse gas whose budget is poorly understood, and (iii) properties of atmospheric aerosol, a potentially important short-term climate forcer.

The data will come from our own long-term observatories (Cape Verde, Weybourne and Penlee Point, all currently funded by NERC), and other GAW stations in the North Atlantic, including stations in the AGAGE network (Barbados, Mace Head and Zeppelin) and sites at the Izana observatory in Tenerife and Mt Pico in the Azores. Data from these sites will provide a record of change on various timescales. They will be complemented by regular campaign measurements using the FAAM BAe146 aircraft. These measurements will be made on board the FAAM aircraft as it makes transit flights from the UK to the Azores via Portugal. The flights will make use of the capability of the FAAM aircraft to probe the atmosphere of the North Atlantic region.

More information about the complete range of ground based stations we will collect data from and their geographical location can be found in the figure and table below.

Geographical locations of the ground-based measurement sites ACSIS will make use of.

Observatories and data available for ACSIS data products.

Key to table: [X] = hourly data; [Y] = weekly data; [Z] = flask samples.  

Name of station (GAW code) Operated by Operating since Key Observations Notes
ZEP, Zepplin, Svalbard (78.90669°N 11.88934°E (475 m a.s.l.)) NOAA, NILU 1994 O3 [X], CH4 (GHGs) CO, Ethane [Z], Aerosol  
 ICE, Iceland (63.40000°N 20.28333°W (118 m a.s.l.)) NOAA 1992 O3, VOCs [X], CH4 (GHGs), CO [Z]   
 SIS, Shetland Isles, UK (60.13334°N 1.18333°W (84 m a.s.l.)) Met Office, NOAA, CSIRO 1992 O3 [X], GHGs, CO [Z]   
 AUC, Aucencoth moss, UK (55.79230°N 3.24310°W (267 m a.s.l.)) CEH


O3, NOx, VOCs [X] Aerosol  
 MHD, Mace Head, Ireland (53.32583°N 9.89944°W (5 m a.s.l.)) NOAA, AGAGE, 1998  O3 [X], CH4 (GGs), CO, VOCs [Z], Aerosol  
WAO, Weybourne, UK (52°57' N 1°07' E) UEA  2004  O3, CO, NOx [X]  
Penlee Point, Plymouth, UK (50° 19.08’ N, 4° 11.35’ W) PML 2014  GHGs, O3 [X], Aerosol   
AZR, Azores, Portugal (38.77000°N 27.38000°W (40 m a.s.l.)) NOAA 1983  CH4 (GHGs), CO, VOCs [Z]  
FUN, Funchal, Portugal (32.65000°N 16.88333°W (58 m a.s.l.)) PIM 1989  O3 [X]  Data available until 1999.
IZO, Izána, Spain (28.30900°N 16.49940°W (2373 m a.s.l.)) AEMET, NOAA 1987  O3 [X], CH4 (GHGs), CO, VOCs, NOx [X,Z], Aerosol High altitude observatory (2373m).
CVO, Cape Verde (16.86403°N 24.86752°W (10 m a.s.l.)) NCAS, UoY, MPI-Jena and IfT 2006  CH4 (and other GHGs), O3, CO, VOCs, NOx, halocarbons [X], Aerosol [Y] Both online and flask measurements available for GHGs and CO.
ASC, Ascension Islands (7.97000°S 14.40000°W (91 m a.s.l.)) NOAA 1989  GHGs, VOCs, CO [Z]  
RPB, Ragged Point, Barbados (13.17000°N 59.43000°W (45 m a.s.l.) NOAA, AGAGE 1985  O3, CO, GHGs [Z]