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Shannon Mason edited UM_bias.tex
almost 10 years ago
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\subsection{Bias decomposition}
Total bias is substantially lower than in ACCESS1.3 ($> 40.$ W/m2), but still very significant.
Summary:
\begin{itemize}
\item Over-production of U3 & U4 compensate for infrequent, too-then U5 (low clouds)
\item U10 is strongly over-produced: seems to be a recently-introduced compensating bias.
\item U9 is too optically thin and too infrequent
\item Mid-topped cloud biases are substantially improved: U6 occurs about the right amount of time, but isn't optically thick enough; U7 isn't frequent or thick enough.
\item U1 now contributes to the SW bias (in GA1.0/ACCESS1.3 H1 was a key compensating cloud regime).
\end{itemize}