Combined characterisation of GOME and TOMS total ozone measurements from space using ground-based observations from the NDSC

J. C. Lambert, M. Van Roozendael, P. C. Simon, J. P. Pommereau, F. Goutail, J. F. Gleason, S. B. Andersen, D. W. Arlander, N. A. Bui Van, H. Claude, J. De La Noë, M. De Mazière, V. Dorokhov, P. Eriksen, A. Green, K. Karlsen Tornkvist, B. A. Kåstad Hoiskar, E. Kyrö, J. Leveau, M. F. MerienneG. Milinevsky, H. K. Roscoe, A. Sarkissian, J. D. Shanklin, J. Stähelin, C. Wahlstrom Tellefsen, G. Vaughan

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28 Citationer (Scopus)

Abstrakt

Several years of total ozone measured from space by the ERS-2 GOME, the Earth Probe TOMS, and the ADEOS TOMS, are compared with high-quality ground-based observations associated with the Network for the Detection of Stratospheric Change (NDSC), over an extended latitude range and a variety of geophysical conditions. The comparisons with each spaceborne sensor are combined altogether for investigating their respective solar zenith angle (SZA) dependence, dispersion, and difference of sensitivity. The space- and ground-based data are found to agree within a few percent on average. However, the analysis highlights for both GOME and TOMS several sources of discrepancies: (i) a SZA dependence with TOMS beyond 80° SZA; (ii) a seasonal SZA dependence with GOME beyond 70° SZA; (iii) a difference of sensitivity with GOME at high latitudes; (iv) a difference of sensitivity to low ozone values between satellite and SAOZ sensors around the southern tropics; (v) a north/south difference of TOMS with the ground-based observations; and (vi) internal inconsistencies in GOME total ozone.

OriginalsprogEngelsk
Sider (fra-til)1931-1940
Antal sider10
TidsskriftAdvances in Space Research
Vol/bind26
Udgave nummer12
DOI
StatusUdgivet - dec. 2000

Emneord

  • Atmosphere

Programområde

  • Programområde 5: Natur og klima

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