Combined characterisation of GOME and TOMS total ozone measurements from space using ground-based observations from the NDSC
Van Roozendael, M.
Bui Van, N.A.
De La, Noë, J.
De Mazière, M.
Karlsen TørnkvisT, K.
Kåstad Høiskar, B.A.
Wahlstrøm Tellefsen, C.
Earth and related Environmental sciences
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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.
CitationLambert, J.-C.; Van Roozendael, M.; Simon, P.C.; Pommereau, J.-P.; Goutail, F.; Gleason, J.F.; Andersen, S.B.; Arlander, D.W.; Bui Van, N.A.; Claude, H.; De La, Noë, J.; De Mazière, M.; Dorokhov, V.; Eriksen, P.; Green, A.; Karlsen TørnkvisT, K.; Kåstad Høiskar, B.A.; Kyrö, E.; Leveau, J.; Merienne, M.-F.; Milinevsky, G.; Roscoe, H.K.; Sarkissian, A.; Shanklin, J.D.; Stähelin, J.; Wahlstrøm Tellefsen, C.; Vaughan, G. (2000). Combined characterisation of GOME and TOMS total ozone measurements from space using ground-based observations from the NDSC. , Advances in Space Research, Vol. 26, Issue 12, 1931-1940, DOI: 10.1016/S0273-1177(00)00178-2.