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. Author manuscript; available in PMC: 2020 Nov 15.
Published in final edited form as: Icarus. 2019 Nov 15;333:273–282. doi: 10.1016/j.icarus.2019.06.009

Fig. 6.

Fig. 6.

The results of a numerical experiment where we compute ∂I/∂τice using the correct surface temperature but the atmospheric temperature profile from 14:30 local time using data from the Mars Climate Database, which simulates the effect of our assumptions in estimating a temperature profile for the retrievals. Each plus sign shows the computed fractional error in ∂I/∂τice while the red bar is the average error for each local time. At the latest local time observed by THEMIS (19:30) the error in thermal contrast (and thus in the retrieved cloud optical depth) is rarely greater than about 5% and never greater than about 10%. (For interpretation of the references to colour in this figure legend, the reader is referred to the web version of this article.)