Errata corrige

IE R R A T A

CORRIGE

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so t h a t a land-average increase of &A of 1% would result in a change of equiUlx'ium temperature of-0.170C. A decrease of 1% would correspond to a 0.170C warming. Similarly, a 25% change of l a n d surface albedo over 4% of the land surface would yield the same results. In Section 8, the correction of the original equation (2) to (C2) results i n a n increase in albedo of 10% over 10% of the earth's surface which would result in a decrease in Te of 0.67 ° C. The conclusion of Pielke's p a p e r x is not a~ected by these corrections. It is clear from this simple analysis t h a t even relatively small changes in landscape characteristics (in this case albedo) can have a n impact on global climate as significant as the hypothesized enhanced warming caused by anthropogenically input ~'eenhouse gases.

In Pielke, z a factor of 4 was left off of equation (I) when this relation is applied to global average conditions. For local daytime evaluations, it is the correct scaling form provided, where S would be modified to represent the Solar r a d ~ t i o n at t h a t locale a n d time of year. The more approl~iate heat budget equation to use in scaling the importance of albedo change globally, however, is uT~ =

{(l-A)

(el)

W i t h this correction equation (2) becomes

ATE = -ST~A

(C2)

so t h a t a +3% n e t change of cloud albedo over the oceans would yield a n equih~orlum temperature change of more t h a n -1.5°C. T h e equation in Section1 fl should t h e n read

REFERENCE 1. Pielke, R.A. Overlooked scientific issues in assessing hypothesized greenhouse gas warming, Environmental Software Jo~rn,,I, 6(2), 100-107.

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