Climate Change 2001:
Working Group I: The Scientific Basis
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Figure 5.11: Aerosol optical depth derived from AVHRR satellite analysis following Nakajima et al. (1999) (labelled result: 1 and result: 2), Mishchenko et al. (1999) and Stowe et al. (1997) for January, April, July and October. The results from Nakajima refer to 1990, while those from Mishchenko and Stowe refer to an average over the years 1985 to 1988. The results derived from the models which participated in the IPCCsponsored workshop are also shown (see Table 5.8). The case labelled “summed sensitivity study” shows the derived optical depth for the ECHAM/GRANTOUR model using a factor of two increase in the DMS flux and the monthly average sea salt fluxes derived using the SSM/I wind fields.

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