ENVISAT AO ID 130: Global study of inorganic chlorine and fluorine loading in the Earth’s atmosphere, based on correlative measurements by ENVISAT-1 and at 10 NDSC sites

Updated 2003-06-26

The project aims at producing an ENVISAT-1 mission-long monitoring of the inorganic chlorine (Cly) and fluorine (Fy) loading in the Earth’s middle atmosphere, based on FTIR vertical column abundance measurements of the key related species HCl, ClONO2, HF and COF2 at 10 ground-based NDSC sites distributed worldwide. These Cly and Fy inventories will be completed with ClO and OClO measurements expected as Level-2 products from ENVISAT-1. The column abundances of the source gases CFC-12 and HCFC-22 will be used to place the stratospheric Cly and Fy evolution in perspective with the more complete sets of organic chlorinated and fluorinated compounds measured at the ground by the in situ networks NOAA-CMDL and AGAGE. The assimilation of the retrieved geophysical data bases will be performed through 3-D model calculations incorporating physical, chemical and transport characteristics of the global atmosphere.

Time frame

Project time span
2002 - 2005
Data collection
not specified
Data processing
not specified
Data reporting
not specified

Contact information

Contact person
Rodolphe Zander
Institute of Astrophysics and Geophysics University of Liège Allée du 6 Août, 17 (Bât B5a) B-4000 Liège BELGIUM
+32 4 366 97 56
+32 4 366 97 47
Other project contacts

Parameters and Media

Parameter groups measured/observed/modelled
Climate change effects
Media sampled/studied/modelled


Regions studied
Climate change effects
Climate change effects
Climate change effects
Stations or areas where observations are made

- Ny Ålesund (78.9°N, 11.9°E) operated by AWI, - Kiruna (67.8°N, 20.4°E) operated by FZK, - Harestua (60.0°N, 11.0°E) operated by IVL, - Zugspitze (47.5°N, 11.1°E) operated by IFU, - Jungfraujoch (46.5°N, 8.0°E) operated by ULg, - Kitt Peak (31.9°N, 111.6°W) operated by LaRC, - Izana (28.2°N, 16.3°W) operated by FZK, - Mauna Loa (19.5°N, 155.6°W) operated by U.Denver, - Lauder (45.1°S, 169.7°E) operated by NIWA, - Arrival Heights (77.8°S, 166.7°E) operated by NIWA.

Data availability

Samples/specimens archived in specimen banks?

Methods & Procedures

Not specified

Additional Information

Is this a bi- AND multi-lateral project (i.e. a project involving cooperation between different countries)?
Other institutes involved in the project

Co-Investigators: (1) T. BLUMENSTOCK, Forschungszentrum Karlsruhe (FZK), Germany; (2) M. CHIPPERFIELD, Centre for Atmospheric Science, U. of Cambridge (CASC), U.K.; (3) E. CUEVAS, Nat. Inst. of Meteorology, Spain; (4) N.B. JONES, B.J. CONNOR and S. WOOD, Nat. Inst. for Water and Atmosphere ( NIWA), N.-Z.; (5) E. MAHIEU and P. DEMOULIN, Inst. of Astro- and Geo-physics, Univ. of Liège (ULg), Belgium; (6) B.GALLE and J. MELLQVIST, Swedish Environmental Research Institute (IVL), Sweden; (7) Y. KONDO, U. of Nagoya, Japan; (8) A. MEIER, Institute of Space Physics, Sweden; (9) F.J. MURCRAY and A. GOLDMAN, Univ. of Denver, CO, USA; (10) J.-C. LAMBERT, Institut d’Aéronomie Spatiale de Belgique (IASB), Belgium; (11) J. NOTHOLT, Alfred Wegener Institut (AWI), Potsdam, Germany; (12) C.P. RINSLAND, NASA-Langley Research Center (LaRC), Hampton, VA, USA; (13) R. SUSSMANN, Fraunhofer Institut für Umwelt (IFU), Partenkirchen, Germany.

Is this project reporting to other organizations/programmes?

(1) Links with the NDSC/WMO: Network for the Detection of Stratospheric Change/World Meteorological Organisation.

Other related projects

ENVISAT AO projects: - AO ID 126, PI M. De Mazière: Validation of ENVISAT-1 level-2 products related to lower atmosphere O3 and NOy chemistry by an FTIR. - AO ID 158, PI J.-C. Lambert: CINAMON : characterisation, interpretation, application and maturation of key ozone- related ENVISAT-1 level-2 products, using correlative observations associated with the NDSC.

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